Sql jobs in United Kingdom - Page 12

Global-e (Nasdaq: GLBE) is the world’s leading platform to enable and accelerate global, direct-to-consumer cross-border e-commerce growth. The chosen partner of hundreds of retailers and brands across North America, Europe, the Middle East and Asia, Global-e makes selling internationally as simple as selling domestically. With Global-e, retailers and brands can increase international traffic conversion and grow sales by offering customers in over 200 destinations worldwide a seamless localized shopping experience. We're looking for a skilled and enthusiastic Solutions Engineer to play a key role in supporting our Sales, Project, Product and R&D teams, conducting technical discussions with online retailers and brands wishing to expand their cross-border business with Global-e. The job will include leading the technology and integration tracks in face-to-face as well as remote meetings with prospect and existing clients, being always up to date with ongoing and future developments of Global-e’s systems, as well as taking client’s feedbacks, inputs and requests back to the Product and R&D teams. Responsibilities: · Help clients understand the power and flexibility of Global-e’s platform, explaining technical features and problem solving any potential roadblocks · Work with the team to identify and qualify business opportunities, identify key customer technical objections and develop the strategy to resolve technical impediments · Make recommendations on integration strategy required to successfully implement a complete solution providing “best practice” advice to customers to optimize the integrated Global-e platform effectiveness · Act as a technical focal point for integrating clients, have the technological savviness required to demonstrate and prototype integrations in merchant environments · Provide ongoing education and technical assistance to current partners and integrate clients · Become a Product expert up to date with features and product roadmaps, by actively participating in internal technical discussions, contributing “field-level” feedback from clients and prospects - act as the Product’s and R&D’s teams mediator. Requirements: · 3+ years experience in solution design / integration with direct client interaction, in SaaS-based environment - solutions engineer role preferred · Strong communication skills with the ability to deliver a solution pitch and convey complex technical concepts to both technical and non-technical audiences · BA/BS/Master degree in Computer Science or another technical field · Firm understanding of systems integration concepts, API implementation (RESTful services) and relational databases (SQL) · Established problem-solving skills and troubleshooting abilities · Experience in close working interactions with distant teams · Ability to learn and work with varying technological environments (including emerging technologies), methodologies, and solutions in the Cloud/IT Technology space · Ability to multitask and work well under deadlines in a changing environment · Previous experience in eCommerce and Logistics/Operations environment is a strong advantage

At Synthesis we push the boundaries of what’s possible with Open Data. It’s a fast-paced, rapidly-changing environment at the intersection of data science, cultural analysis & brand consultancy. As a Senior Data Scientist at Synthesis, you will play a key role in shaping our data science practice and driving innovation across both client projects and internal products. You will lead end-to-end data projects, from shaping datasets and building models to designing scalable data workflows that power the insights and decision frameworks we deliver. You will work with diverse open data sources, ranging from search, social and e-commerce, to academic papers and patents, to understand audience behaviour and anticipate how needs will evolve over time. In this role, you will not only contribute hands-on but also guide junior data scientists, act as a thought partner to cultural strategists, and help define the roadmap for our data products and infrastructure. We are a small, collaborative team with diverse backgrounds—from computer science and engineering to anthropology and law—spread across Singapore, London and NYC. We value curiosity, creativity, and a spirit of experimentation. You’ll be one of the first hires into our UK office, and you’ll work closely with the teams in Singapore and the US. What you’ll need. • 4+ years of experience in data science, with a strong record of delivering impactful projects from data exploration through to production deployment., • Proficiency in Python and SQL, with strong software engineering fundamentals (clean, modular, well-documented code, testing, and version control with Git)., • Proven experience designing and building scalable data workflows or data-driven products, including architecting pipelines, modular components, and reusable frameworks., • Experience applying large language models or advanced NLP techniques (e.g. embeddings, semantic parsing, topic modelling, text classification); familiarity with processing non-english languages is a plus., • Comfortable working with large, messy, and unstructured datasets, particularly text and image-based data., • Ability to translate complex technical insights into clear, actionable recommendations for non-technical stakeholders, and collaborate closely with strategists to drive business outcomes., • A collaborative mindset, with openness to feedback and diverse perspectives. Bonus points if you have the following. • Experience building and maintaining production-grade data pipelines (e.g. Airflow, Dagster) or integrating data from APIs, web scraping, or third-party providers., • Familiarity with cloud environments such as Google Cloud or AWS, and deploying data science workflows at scale, • Strong grasp of statistical methods and core machine learning algorithms, with practical experience using libraries such as scikit-learn, statsmodels, and the ability to select appropriate models based on data characteristics and problem context. Why Synthesis? Synthesis is known for delivering exceptional data models and products that unravel the stories of the people they represent and inspire our partners to act with confidence. Partnering with the world’s most successful brands in food, health, media, and travel, we’re building specialised solutions to solve problems of planning for the future. Rooted in culture, tested in data science, we spot and anticipate changes and connections in culture to inspire action and help brands grow with a new wave of audiences. After five years of iteratively developing and perfecting these models, we are in the midst of launching a series of products which you will be instrumental in shaping. We will be at the forefront of a shift towards leveraging open data to develop rich, honest, human insight. In an industry that has for too long relied on ‘question-response’ approach to understanding changes in behaviour, we prioritise layering behavioural, performative, search and sales data to highlight the discrepancies between what people say they do and what they actually do. We see a $40 billion industry that has failed to innovate for too long and we are just getting started. About Synthesis We do Human Centred Data Science. It’s a way of reimaging open data sources from a human perspective. It prioritises behaviour and context to unravel why people do what they do, at scale. By blending data science with human and market intelligence we help our clients spot early signals of change and predict implications for business. Diverse by design. Synthesis is a team of digital researchers, game designers, data forecasters, network scientists, ethnographers, and engineers. Cultural and category experts train our models – ensuring they detect measures that matter most – whilst data scientists uncover patterns the eye cannot see.

Senior Software Engineer - £500 per day - Outside IR35 - London (2 days per week) Contact: Overview We are seeking a talented Software Engineer to join an established team focused on improving a live product. The software supports fraud response teams within banks to investigate accounts suspected of laundering the proceeds of scams. Our full-stack application integrates with other software to surface AI insights driven by cutting-edge data-science techniques and our valuable datasets. The most important parts of our stack: • TypeScript, • React, • Express (Node), • Event-driven processing (RabbitMQ), • PostgreSQL Databases, • Docker, • Kubernetes, • Jenkins CI/CD Key Skills & Experience • Expert-level programming with NodeJS (preferably TypeScript), • Moderate-level programming with ReactJS, • Strong awareness of secure coding standards (e.g., OWASP, CWE)., • Docker & Kubernetes, • SQL (preferably Postgres or Oracle), • Skilled in identifying and refactoring anti-patterns and managing technical debt., • Proficient in CI/CD practices and tooling (e.g., Jenkins)., • Strong background in test strategy and execution—from unit and integration tests to performance and regulatory testing. Responsibilities • Design and build scalable applications and services, following best practices for code quality, reviews, and security., • Contribute to technical design and architecture for service-level solutions that align with evolving business needs., • Partner with product and delivery teams to prioritise work and balance trade-offs., • Continuously identify opportunities to improve and modernise core services – automation is key to our development culture., • Introduce and implement new technologies responsibly, aligned with enterprise architecture principles., • Contribute to knowledge sharing across your team and adjacent groups.

Data Engineer We are looking for a Senior Data Engineer to design, build, and scale the data infrastructure that powers products and decision-making. This role is central to how data flows across the organization—from ingestion and processing to analytics and insights. You’ll work closely with developers, analysts, and trading teams to ensure data is reliable, accessible, and built for the future. This role combines hands-on engineering with strategic thinking. You’ll contribute to architecture discussions, improve data pipelines, and help shape technical direction. We’re seeking someone who takes ownership, enjoys tackling complex problems, and can deliver impactful solutions across multiple systems and teams. Responsibilities • Design, build, and maintain robust data pipelines for analytics, reporting, and product use cases., • Contribute to long-term technical roadmap and participate in architecture discussions., • Build and optimize ETL/ELT processes for small- to large-scale data processing., • Develop clear, well-structured data models and maintain documentation to support analytics and self-service., • Collaborate with software developers, analysts, and trading teams to deliver reliable and scalable data solutions., • Identify opportunities to improve performance, automate processes, and enhance data quality and reliability. Core Skills & Competencies • Collaborative mindset: Works well with teams, communicates openly, and fosters a positive culture., • Analytical thinking: Structured, detail-oriented, and curious; focused on accuracy and performance., • Problem-solving: Able to trace issues across multiple systems and deliver elegant, lasting solutions., • Communication: Able to explain complex technical concepts clearly to technical and non-technical stakeholders. Required Skills & Experience • Data warehousing: Understand differences between application databases and analytical warehouses; design models for both., • Python: Strong expertise; C# experience is a plus., • SQL: Comfortable with complex queries and query tuning on relational and analytical databases (e.g., PostgreSQL, ClickHouse)., • Containers: Experience building, running, and deploying containerized services in local and production environments., • Cloud platforms: Experience with Azure and distributed systems. Preferred Skills • Kubernetes & Helm: Deploying and managing containerized applications at scale with reliability and fault tolerance., • Kafka (Confluent): Familiarity with event-driven architectures; experience with Flink or KSQL is a plus., • Airflow: Experience configuring, maintaining, and optimizing DAGs., • Energy or commodity trading: Understanding the data challenges and workflows in this sector., • Trading domain knowledge: Awareness of real-time decision-making and trading data flows.

Technical Quant Developer with deep Computer Science expertise applied to Python, SDLC tooling, Linux, Docker, and SQL sought to join a Boutique Quant Hedge Fund.You will join as a more junior member, as part of a small team designing and implementing a central platform for Backtesting, Pricing, Risk and Performance, to be used across all Funds and Investment teams. Finance experience is not an essential criterion. This new, core team collaborate with Quantitative Researchers and Portfolio Managers to design and implement scalable solutions, addressing complex business needs, in particular delivering and maintaining critical components of the Investment Infrastructure, such as the Data Interface Layer, Central Risk Calculations, and Backtesting Frameworks, to be used by diverse Investment teams as part of their daily work. The platform is pure Python, with SQL, on Linux and Docker platform. Python is the primarily required skill, however mastery of Linux/Docker environments and SDLC tooling such as GitLab CI/CD would be extremely highly regarded. In return for your Computer Science and Engineer nous, full training on the Quantitative Finance, Hedge Funds and Systematic Investing will be provided. Essential Skills & Experience: • Undergraduate degree in Computer Science, Computing, Software Engineering or similar with top grades from a reputable institution. MSc or possibly PhD level academics in said subject(s) preferred., • Strong Python skills, as per 3+ years of professional experience in a technically and/or scientifically complex and competitive environment., • Proficiency in Linux and Docker including system administration and containerization for deployment and scaling., • Hands-on experience with continuous integration and delivery systems such as Jenkins and GitLab CI/CD and a strong understanding of Software Development Life Cycle (SDLC) best practices., • Knowledge of SQL for database management and query optimization. This is an outstanding opportunity to join a world-class boutique Systematic Investment business, playing a key role in the delivery of a crucial core platform for use by cross-functional teams across multiple investment platforms.

Senior Automation Software Tester - Central London (2 days a week onsite) - Up to £75k (DOE) - Permanent Uneek have partnered with a leading energy company in their search for a Senior Automation Software Tester to join their team, their mission is to help utilities transition to a more sustainable, customer-focused future. On Offer: • Up to £75k (DOE)., • Permanent role., • 2 days a week onsite in Central London. Key requirements: • Design, implement, and maintain automated Java test frameworks for APIs, web services, and large-scale enterprise apps., • Build and manage Selenium WebDriver test suites with Cucumber and BDD., • Mentor junior testers and encourage a culture of excellence. You’ll need: • 5+ years’ experience in test automation with Java as your primary language., • Strong expertise in Selenium WebDriver, Cucumber, and BDD practices., • AWS knowledge and SQL/database experience. This is a great time to join an exciting company and work on impactful projects with global reach. They offer hybrid working with 2 days per week in central London, you will work with a supportive, passionate team and culture built on respect, innovation, and continuous improvement.

C# Developer (.Net) • Location: Canary Wharf, • Hybrid: 3 days onsite per week, • Rate: £415 per day (Inside IR35), • Duration: 6 months initial contract with potential extension up to 2 years with a Permanent conversion option, • Positions Available: 13 positions, • Industry: Financial services Interview Process: 2 rounds of interview - Face-to-face interview only, and Technical assessment -Home assignment to be completed as part of the selection process Job Summary: We’re hiring on behalf of our client, a leading financial services company, within their Business Intelligence development team. The role focuses on developing and supporting business applications using the MS .NET platform (C#, Visual Studio) and working with both Oracle and SQL Server databases. You’ll be joining a collaborative team that delivers key business solutions across various environments. Key Responsibilities: • Design, develop, and maintain business applications using Visual C# .NET with Oracle and SQL Server databases, • Provide ongoing support for existing C# and .NET applications, including troubleshooting and implementing solutions, • Write and optimise T-SQL and PL/SQL scripts for data analysis and reporting requirements, • Collaborate with Database Administrators, Technical Support, and Infrastructure teams across London and New York offices, • Follow Change Management Control procedures and coordinate with Release teams for production deployments, • Provide occasional out-of-hours support (weekdays and weekends) Qualifications: • Strong proficiency in C#, Visual Studio and .NET Framework development, • Solid experience with both SQL Server (T-SQL) and Oracle (PL/SQL) databases, • Knowledge of application lifecycle management, including unit testing, QA, and deployment, • Experience troubleshooting and supporting production applications To be considered, please ensure you complete your application on the Computappoint website. Services offered by Computappoint Limited are those of an Employment Business and/or Employment Agency in relation to this vacancy.

Who are we? A strategic and trusted insurance partner, Berkshire Hathaway Specialty Insurance (BHSI), provides a broad range of commercial property, casualty and specialty insurance coverages and outstanding service to customers and brokers around the world. Part of Berkshire Hathaway’s insurance operations, we bring our solutions to market with our stellar brand name, top-rated balance sheet, and the expertise of our global team of professionals, who exude excellent capabilities and strong character. We are a values-based organization where respect, integrity, excellence, collaboration, and passion define who we are and how we do business. We value diversity of backgrounds, experience, and perspectives and strive to foster an inclusive environment that enables all our team members to bring their best selves to work. We are one team committed to building a culture where every teammate has the opportunity to contribute and be recognized. Want to be part of the team building the finest property, casualty and specialty lines insurance company in the world? Learn more about our unique ___ and ___. Job Opportunity: BHSI is seeking a technically minded and passionate Catastrophe Risk Analyst with a background in engineering or science to join our Catastrophe Engineering and Analytics (CAT E&A) team. CAT E&A is an innovative and versatile technical team that conducts CAT-risk evaluations for traditional and parametric insurance solutions, develops independent risk models, and provides quantitative loss metrics to inform underwriting decisions. This opportunity is in our London/European offices. Duties & Responsibilities: • Utilizing proprietary and market catastrophe models to evaluate and develop insights for a diverse range of requests for quotes for catastrophe risks such as, but not limited to, earthquakes, tropical cyclones, severe convective storms, floods, wildfires, cyber attacks etc., • Structure and evaluate technical pricing metrics for parametric insurance solutions (FastCAT) for catastrophe risks, • Analyze and collect data sets from claims, insurance quotes, hazard models, structural analysis, geospatial sources, and various other public/proprietary datasets to help build catastrophe models and an understanding of structuring and pricing decisions, • Develop and maintain expertise in catastrophe modelling and data science techniques, and their application to understanding risk, • Work with domain experts across teams and perils to enhance our use of available data, • Propose and execute innovative solutions to insurance problems that directly impact BHSI underwriting decisions Qualifications, Skills and Experience: • B.S. or M.S. (preferred) in civil engineering, atmospheric science, earth science, actuarial science, mathematics, data science, or a related field, • 1-3 years of industry experience is preferred, • Advanced knowledge of probability theory, statistics, data science, • Practical experience in insurance, catastrophe model development, infrastructure or community resilience, and/or exposure data collection, • Experience applying probability and statistical techniques to structural performance, natural catastrophe hazard, building exposure data, or insurance claims data, • Strong written and verbal communication skills, • Strong programming skills (Python, R, MATLAB, SQL, GIS preferred), • Highly motivated, detail oriented, and team player BHSI Offers: • A company with a truly unique opportunity and value proposition in the marketplace., • A competitive package and exciting growth opportunities for career-oriented teammates, • A dynamic, action oriented, and thoughtful environment centered on always doing the right thing for our customers, teammates and our other stakeholders, • A purposely non-bureaucratic organization that embraces simplicity over complexity and emphasizes individual excellence in a team framework To apply, please submit your CV with a cover letter outlining why this would be the perfect role for you to NOTE: Compensation will be commensurate with experience. This job description is not intended to be all-inclusive. Team Member may perform other related duties as negotiated to meet the ongoing needs of the organization

🚀Product Developer (B2B SaaS) 💵Salary : Up to 40,000 depending on experiecne ✨Hybrid working environment 📍London Based I’m partnering with a rapidly growing London based B2B SaaS company looking for 2 experienced product professionals to join their team. The focus is on owning and improving product processes, from API integration to documentation and lifecycle management. Role Highlights: • Document and manage the product lifecycle, including APIs., • Collaborate with QA & development teams to gather feedback., • Write clear technical documentation (API docs, SQL/database queries)., • Bring prior experience and best practices to hit the ground running. Ideal Candidate: • 1–3+ years in product development/product owner roles., • Comfortable with API integration, documentation, SQL, and databases., • Curious, proactive, and able to manage product processes independently., • B2B SaaS experience 📌If this sounds like you or someone in your network, get in touch with me!

Cloud Infrastructure Manager (Azure) Epsom / WFH to £80k Are you a highly skilled Azure Cloud Engineer looking for an opportunity to progress your career in a senior, hands-on role with leadership responsibilities? You could be joining an independent Building Society that specialise in savings and mortgages, in a friendly and supportive environment where you can work with autonomy and enjoy flexible working. As the Cloud Infrastructure Manager you'll provide hands-on technical / team leadership to small team responsible for the deployment and configuration of cloud services and the ongoing maintenance of Azure cloud services as the business transitions to the cloud. You'll produce configuration design documentation (LLD) for proposed solutions and be responsible for Azure tenancy administration and the implementation of cloud security infrastructure. Additionally you'll manage SQL database infrastructure administration on-prem and cloud deployments, Azure capacity planning and Disaster Recovery and Storage lifecycle management including blob, files SharePoint and OneDrive and provide support to the helpdesk on incidents and escalated issues. Location / WFH: You can work from home most of the time, meeting up with colleagues in the Epsom office twice a month. About you: • You are a skilled Azure Cloud Engineer with a Windows infrastructure background, • You have experience with low level cloud design and solution architecture, • You're collaborative and pragmatic with technical / team leadership skills and experience, • You have a strong understanding of PasS and IaaS, • You're proactive and enthusiastic, keen to make an impact and comfortable with senior stakeholders What's in it for you: • Up to £80k salary, • Pension (up to 10% contribution), • 25 days holiday, • Private Healthcare, • Life Assurance, • Company bonus, • Professional study support Apply now to find out more about this Cloud Infrastructure Manager (Azure) role. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

API Engineer (Python, FastAPIs) - 2/3 days a week in London numi are proud to be partnered with a technology company on a mission to make supply chains transparent and sustainable. They use earth observation and environmental monitoring to create a global data asset that will radically change how supply chain risk is managed. Our partner is a venture-backed, post-revenue company with a tight-knit founding team. This is a chance to join a high-growth startup and have a pivotal impact on the company’s mission. As an API Engineer, you'll be critical in ensuring complex data is easily accessible and consumable. You will design, build, and maintain robust, scalable, and well-documented APIs that power internal and external applications. What You'll Do • Build the Engine: Design, develop, and maintain high-performance, scalable, and secure RESTful APIs using Python, with a strong focus on FastAPI., • Integrate Data: Build efficient data querying mechanisms from structured databases., • Champion Best Practices: Uphold high standards for clean, maintainable, and well-tested code. Who We're Looking For You are a seasoned API builder with a proven track record of shipping high-quality services. You have strong expertise in FastAPI and a deep understanding of how to build production-grade APIs used at scale. Must Have: Strong expertise in Python and the FastAPI framework. Strong experience with both SQL and NoSQL databases, including schema design and query optimization. Nice to Have: Experience with data transformation tools like DBT. Proficiency with AI-powered development tools. Experience or interest in supply chain, agri-food tech, or geospatial platforms. Why You'll Love Working Here • Pivotal Impact: Your work will be at the core of our product and central to our company's success and mission., • Real Ownership: Receive a meaningful equity stake and be a true owner of the company’s journey. This is a fantastic role with interview underway so apply now!

About Electric Twin Electric Twin is pioneering the future of behavioral intelligence using AI. We've built synthetic populations - digital twins of real audiences - that enable organisations to understand human behavior at unprecedented speed and scale. Our platform replaces weeks of traditional market research with seconds of AI-powered simulation, achieving 92% accuracy validated against real-world data. Founded by Ben Warner (former Chief Data Advisor to the UK Prime Minister, architect of the 2019 election model) and Alex Cooper (19-year British Army veteran, Director of UK mass COVID testing), we serve leading enterprises and government agencies making high-stakes decisions. We're a seed-stage company backed by top investors, with a world-class team combining expertise in AI, behavioral science, and strategic simulation. We’re now looking for a Senior Full-Stack Engineer to help us build the next generation of applied AI tools. What You’ll Do • Build and ship production features end-to-end across Python, SQL, and Next.js., • Design APIs, data pipelines, and UIs that make complex model outputs intuitive and actionable., • Own architecture and design decisions — schemas, modularisation, and system patterns., • Refactor and optimise existing systems for performance and maintainability., • Improve quality and speed through testing and CI/CD., • Work side-by-side with founders and senior engineers — we collaborate on-site four days a week. Requirements What We’re Looking For • 5+ years’ experience building production software (exceptional 4+ considered)., • Strong proficiency in Python and SQL for scalable back-end systems., • Skilled with TypeScript, React, and Next.js for high-quality front-end work., • Solid testing habits and CI/CD experience., • Product-focused mindset and attention to code quality., • Comfortable working on-site in a fast-paced, collaborative startup. Nice to Have • Experience with data-heavy or high-throughput systems., • Exposure to applied AI or LLM integrations (no model training required)., • Familiarity with GCP, especially IAM, networking, and security. Why Electric Twin • Impact – Shape both the product and how we build it., • Pace – We ship weekly; your work goes live fast., • Team – Small, sharp, and experienced., • Learning – Work hands-on with cutting-edge AI applications that matter.

About the Company Every hour, millions of sports fans lose hard-earned cash on suboptimal bets — and this company is changing that. Ranked among the top three social media identities in the U.S. gambling space, they are arming fans with market-beating insights, tips, and data, all powered by cutting-edge, in-house algorithms. Their flagship digital B2C subscription product launched in October 2024 and has since been experiencing very rapid growth — currently doubling revenues every 1–2 months while maintaining healthy 40%+ profit margins. It combines top-rated human expertise with market-leading AI algorithms, delivering world-class analytics and insights straight to the fingertips of thousands of subscription customers. Leveraging industry-leading social channels with millions of engaged followers, they’re scaling the consumer product through their massive social reach. With a lean but highly capable team of engineers, designers, and product leaders from top-tier companies such as Meta and Alibaba, the company is now entering an exciting scale-up phase. This is a unique opportunity to join and directly shape a pioneering consumer product. Role Overview We are looking for an outstanding Senior Software Engineer to join our fast-moving journey. You’ll be a key contributor across the stack in our Rust-based environment, building intuitive experiences and scalable systems while influencing product direction. We value recent impact above all else: what you’ve shipped, how you’ve solved problems, and the ownership you’ve shown in your most recent role. You’ll partner with product and data teams to deliver features that delight users, drive retention, and boost business value. This role also offers the chance to mentor others, shape engineering culture, and play a critical role in our growth story. Key Responsibilities • Drive the development and scaling of GameScript to deliver best-in-class insights to sports fans, • Design, build, and maintain production systems (frontend and backend) using Rust, • Partner with product and design teams to turn ideas into fully functional features, • Contribute to strategic decisions on product direction (e.g., integrations, AI-powered algorithms, tooling for fans), • Rapidly test and iterate based on customer feedback and analytics, • Improve system scalability, reliability, and performance, • Lead code reviews, mentor engineers, and support hiring as we grow, • Take ownership from concept to delivery, including infrastructure (deployments, observability, CI/CD) Must-Have Qualifications • 5+ years in software engineering (flexible if skills and impact are strong), • Strong foundations in typed languages (e.g., C++, Scala, Rust, Java, C#, Swift), • Strong understanding of core programming concepts, including variable assignments and memory allocation (stack vs. heap), • Proven track record of recent impact: delivering features, improving systems, solving real-world challenges, • Comfort adapting to new languages and stacks quickly, • Experience in smaller/startup environments (ownership mindset, thrives in ambiguity), • Strong communication and collaboration skills; disciplined in reviews and documentation, • Degree in Computer Science, Engineering, or related field (top-tier university preferred) Desirable Experience • Hands-on experience with Rust (or willingness to learn — our current team picked it up on the job), • Cloud infrastructure: Kubernetes, GCP, Cloudflare, Terraform, • Databases: SQL-like, especially SurrealDB, • Leadership qualities: mentoring, project ownership, stakeholder management, • Exposure to sports betting, gambling, or adjacent domains (not required) What Success Looks Like (6–12 Months) • You’ve shipped high-impact features end-to-end, driving real user engagement, • You’ve taken ownership of key systems and improved performance/reliability, • You’re mentoring others and helping to build a strong engineering-first culture, • You’ve influenced architectural decisions and contributed to our tech evolution, • You’re fully fluent in our Rust-based stack and pushing its boundaries What We Offer • Join early and directly shape a consumer product at scale, • Work across the stack, from backend systems to frontend UX to internal tooling, • Operate at the intersection of algorithmic insights, AI, and social media, • Collaborate closely with a talented, supportive, and ambitious team, • Competitive salary with a performance-based bonus designed to reward your impact, • Private health insurance, fitness incentives, and free daily lunch (often dinner as well), • A fast-paced, intellectually challenging environment where ideas matter and careers grow, • The rare opportunity to be part of the founding team of a first-of-its-kind consumer product in sports betting

Tech Lead – Azure / .NET Remote/London (occasional office visits) circa £95 - 100k + 20% bonus + excellent benefits Azure, C#, .NET, API A Lead Software Engineer with strong experience in Azure and C#/.NET is required by a global, prestigious luxury brand. This is a hands-on leadership role where you will translate architectural vision into high-performance, enterprise-grade solutions. Working closely with the Global Head of Engineering and a talented global team of developers and architects, you will plan, design, and deliver scalable, secure, and automated cloud platforms within Microsoft Azure. The organisation has beautiful offices in the West End, with a requirement to attend approximately once a fortnight. Key Responsibilities: • Design and deliver high-performance, public-facing REST APIs and system integrations within a modern Azure environment., • Produce API documentation that adheres to OpenAPI 3.x standards., • Lead and mentor a small, focused development team, promoting collaboration, code quality, and technical excellence., • Modernise legacy systems and drive the development of next-generation, cloud-native solutions aligned with architectural best practices., • Champion DevOps, CI/CD, and automation to ensure fast, reliable, and secure releases., • Evaluate and implement emerging technologies to enhance scalability, monitoring, and performance. Key Requirements: • Extensive experience in C#, .NET, SQL, and enterprise-grade API design., • Strong technical expertise across Azure SQL, Cosmos DB, Service Bus, Function Apps, APIM, Front Door, Auth0, and WebSockets., • Proven ability to design APIs from the ground up that follow REST principles and OpenAPI 3.x standards., • Hands-on experience with Azure DevOps pipelines, automation, and performance tuning., • A mindset focused on continuous improvement, security-first design, and delivery excellence., • Degree in Computer Science or equivalent experience. Azure certifications are advantageous. Why Apply? This is an opportunity to play a key role in defining the technical direction of a global platform, combining architecture, leadership, and deep engineering capability. If you thrive on building robust, cloud-native systems, leading high-performing teams, and solving complex challenges at scale, this role offers the opportunity to make a genuine impact within a world-class organisation.

Job Title: Data Engineer Job Type: Full Time, Permanent Working location: London, Hybrid (3 office days a week) Role Purpose At Travelex we are developing modern data services, which will be at the heart of our relationship with our customers. Our data architecture is becoming more service-oriented and more real-time – which creates a range of engineering problems for you to solve. Our work is fast-paced although our team remains collaborative and flexible even when delivering fast. As a Data Engineer, you’ll collaborate with stakeholders across the business to design and deliver new components of our data landscape. You’ll own your work end-to-end, from defining the approach, through coding, configuration and documentation, to go-live. In doing so, you’ll have significant impact on how our business evolves and the freedom to shape solutions in your own way. Key Responsibilities Here are key things you’ll do as a data engineer in our team. The list isn’t complete: as a competent engineer, you’ll bring to Travelex your own ideas of what else is needed to become a world-class data-driven business. • Develop code, scripts and configurations as part of the development of data pipelines, data services and data transformations., • Define data solutions, and lead all activities required when agreeing the best design (analysis, engagement, documentation)., • Take initiative to investigate whatever needs clarification during design or development., • Learn what’s required from your solutions and negotiate the requirements to achieve clarity and simplicity., • Learn about features, capabilities and settings of the technologies used to build the best solution., • Brainstorm your engineering approach continuously with colleagues and partners., • Recommend development priorities, explain pros and cons of different options, and reach agreement on the next steps if needed., • Recommend and implements steps to test and secure your data solutions. Requirements This vacancy is for someone who enjoys mixing hands-on coding with wider problem-solving and continuous learning. Below are key requirements from our data engineer, but you don’t need to tick every box. Success in our team is not limited to the traditional data engineering type! • Significant hands-on experience with AWS services focused on data flow, pipelines, data transformation, storage and streaming., • Excellent data engineering skills, for example with SQL, Python, DBT and Airflow., • Good understanding of service-oriented architecture; experience of exposing and consuming data via APIs, streams and webhooks., • Experience designing scalable data models, warehouse/lakehouse architectures, and dimensional modelling for analytics., • Confidence in coding, scripting, configuring, versioning, debugging, testing and deploying., • Skilled in optimising queries, pipelines, and storage for cost and performance efficiency., • Good understanding of security best practices, and experience of implementing them., • Knowledge of data quality frameworks, cataloging, lineage, and governance tools., • Familiarity with CI/CD practices and Infrastructure-as-Code tools (Terraform, CloudFormation, or similar)., • Experience setting up alerting, logging, and monitoring for data pipelines (e.g., using CloudWatch, Datadog)., • Comfortable collaborating with data scientists and analysts to productionise models or build reusable data assets., • A track record of automating manual processes and designing systems to scale with growing data volumes., • The ability to explain, brainstorm, present, simplify, clarify, prioritise, document, listen, negotiate and compromise., • The curiosity to understand the business, its requirements and culture., • Your own unique style or way of working, which will make our team diverse and original. Why Travelex? To remain the world’s leading foreign exchange specialist, we are focused on making our customers’ lives simpler, more engaging and hassle free while they travel or move money abroad. We promise to give them the freedom and peace of mind to explore the world, their way – enabling them to travel confidently because they know they have us to lean on. Customer centricity and digital are at the heart of our business strategy. Our commitment to innovation has never been greater, with the development of a number of digital-first, greenfield products and services. And with the Travelex's resources, deep industry experience and leading brand we are inventing the future of FX, cross-border e-commerce and international payments. We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status

We are working with a growing VC-backed technology company that's revolutionising how software is built and deployed. At the forefront of AI-powered automation, creating innovative solutions - this organisation is continuing to evolve and is looking for a Senior Backend Engineer. You'll be responsible for building and evolving backend services, integrations, and workflow logic for cutting-edge SaaS applications. Key Focus Areas: • Work with automation-generated code and make it production-ready, • Build robust backend services using Python APIs and data workflows, • Create seamless integrations with external systems, • Champion AI-assisted development practices across the engineering team What You'll Do: • Own backend features and API integrations (Python, FastAPI, gRPC, SQL), • Adapt and extend auto-generated pipelines and front-end outputs, • Build connectors for APIs, files, and external systems, • Integrate LLM-based capabilities with robust evaluation and monitoring, • Champion AI-assisted development practices and tools, • Set up guardrails and context packs for AI-powered workflows, • Mentor team members on AI development best practices, • Help the team ship high-quality code faster using AI tools, • Work closely with cross-functional teams including Solution Strategists, Data Platform, and Support teams, • Contribute to architectural decisions and technical strategy What We're Looking For: • Strong Python backend/API development experience, • Solid SQL and data modeling capabilities, • A solid background within start-ups and able to work on multiple projects similtaneously, • Proven experience with integrations (APIs, SFTP, SharePoint, webhooks), • Hands-on experience with workflow orchestration tools (Temporal, Dagster), • Comfortable working with and improving generated code, • Experience with CI/CD pipelines, Docker, and cloud platforms (Azure/AWS/GCP), • Understanding of modern software architecture patterns Please apply for more information.

Senior C++ Developer / Software Engineer (Linux SQL C++17) London / WFH to £110k Global-leading FinTech is seeking a Senior C++ Developer to take ownership of strategic enhancements on their core platform, as well as directly on bespoke client projects. The organisation is a pioneer in the field of cross-asset securities and derivatives post-trade processing technology, and have created ground-breaking, adaptable software that produces secure and scalable solutions for peak operational efficiency and optimum business performance for their clients. This is a great opportunity to accelerate your career alongside established business and technology leaders, and gain / deepen your finance experience. As a Senior C++ Developer, you'll be responsible for designing and building unique technical solutions, meeting user requirements and contributing to the evolution of the cutting-edge platform. Not only can you take advantage of working in a modern, technology-driven environment, but you will be granted a great deal of autonomy across the full development lifecycle, influencing key technical decisions and working with a highly collaborative, experienced team. Location / WFH: You'll join colleagues in the London office three days a week with flexibility to work from home the other two days. About you: • You have strong C++ development experience on Linux or UNIX, C++14 and above, • You have good SQL skills, • You're a passionate technologist who is motivated by working on cutting-edge systems and engineering complex solutions, • You're a positive, proactive team member who excels when working collaboratively, • You have a strong knowledge of software engineering best practices, • You're degree educated, having achieved a 2.1 or above in a STEM discipline, • Ideally you will have experience working in a financial services or trading environment although technical skills of far greater importance What's in it for you: As a Senior C++ Developer you will receive a competitive package: • Salary to £110k, • Pension (to 9% contribution), • Healthcare, • Volunteer / charity days, • Hybrid working, • Career development and training Apply now to find out more about this Senior C++ Developer / Software Engineer (Linux SQL C++17) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Senior Data Engineer - FinTech Unicorn - Python, SQL, DBT, Airflow, AWS/GCP. Senior Data Engineer - FinTech Unicorn - Python, SQL, DBT, Airflow, AWS/GCP. Senior Data Engineer - FinTech Unicorn - Python, SQL, DBT, Airflow, AWS/GCP.

❗ Interested in advancing your catastrophe modelling career within a broking environment? - Salaries over £120,000 p/a Perhaps you are looking to add an aspect of creating and maintaining client relationships in your responsibilities, or perhaps considering an opportunity to manage junior catastrophe analysts? If you are currently hold more than 5 years of experience in the cat modelling industry in London (preferably along natural cat LOB's), are proficient in RMS, AIR, SQL, R, and any other technical skills, then please reach out to myself via LinkedIn or email to find out more.

Senior Software Engineer - Backend & Data | Fully Remote (UK) Founding Engineer | Python | GCP | Terraform | Event-Based Systems | Data Pipelines An innovative, mission-driven LegalTech SaaS start-up is looking for a Senior Product Engineer (Backend & Data) with deep experience in Python, Product development, and Data engineering. Role Information: • Salary: Up to £100,000 (DOE) + Equity, • Location: Fully remote (UK only), • Stack: Python, TypeScript, GCP, Pub/Sub, SQL & NoSQL, IaC (Terraform), CI/CD (GitHub Actions), Observability tools, AI tooling You’ll join a remote first, high-trust engineering team working with a modern, cloud-native stack - with real influence over technical decisions from day one. You’ll take technical ownership of the backend to ensure it’s robust, scalable, and ready for real customers, while adding new Data-driven features, optimising performance, and shaping the long-term Product roadmap. While your focus will be backend systems in Python, you’ll also work across the stack, collaborate directly with users, and bring a strong Product mindset to every decision. This role is ideal for someone who thrives on turning early-stage ideas into scalable, market-ready Products backed by solid Data pipelines. Senior Product Engineer - Highlights: • Enhance and scale backend services in Python, • Architect event-driven solutions in GCP with Pub/Sub & Cloud Run, • Build and optimise Python code for high-performance backend systems, • Integrate APIs, enrich Data, and deliver robust, scalable Data pipelines, • Implement modern IaC practices for deployment and automation, • Leverage AI and tooling of your choice to boost workflow efficiency and deliver innovative Product features, • Autonomy & Ambiguity - discover, design, and build without micromanagement., • Professional Development - dedicated time to explore new AI tools, Data engineering practices, and emerging tech to keep the Product ahead of the curve. They want engineers to be setup to stay on top in the new AI world.

Job Title: Senior Data Engineer Location: London, UK (3 days in the office) SC Cleared: Required Job Type: Full-Time Experience: 8+ years Job Summary: We are seeking a highly skilled and experienced Senior Data Engineer to join our team and contribute to the development and maintenance of our cutting-edge Azure Databricks platform for economic data. This platform is critical for our Monetary Analysis, Forecasting, and Modelling activities. The Senior Data Engineer will be responsible for building and optimising data pipelines, implementing data transformations, and ensuring data quality and reliability. This role requires a strong understanding of data engineering principles, big data technologies, cloud computing (specifically Azure), and experience working with large datasets. Key Responsibilities: Data Pipeline Development & Optimisation: • Design, develop, and maintain robust and scalable data pipelines for ingesting, transforming, and loading data from various sources (e.g., APIs, databases, financial data providers) into the Azure Databricks platform., • Optimise data pipelines for performance, efficiency, and cost-effectiveness., • Implement data quality checks and validation rules within data pipelines. Data Transformation & Processing: • Implement complex data transformations using Spark (PySpark or Scala) and other relevant technologies., • Develop and maintain data processing logic for cleaning, enriching, and aggregating data., • Ensure data consistency and accuracy throughout the data lifecycle. Azure Databricks Implementation: • Work extensively with Azure Databricks Unity Catalog, including Delta Lake, Spark SQL, and other relevant services., • Implement best practices for Databricks development and deployment., • Optimise Databricks workloads for performance and cost., • Need to program using the languages such as SQL, Python, R, YAML and JavaScript Data Integration: • Integrate data from various sources, including relational databases, APIs, and streaming data sources., • Implement data integration patterns and best practices., • Work with API developers to ensure seamless data exchange. Data Quality & Governance: • Hands on experience to use Azure Purview for data quality and data governance, • Implement data quality monitoring and alerting processes., • Work with data governance teams to ensure compliance with data governance policies and standards., • Implement data lineage tracking and metadata management processes. Collaboration & Communication: • Collaborate closely with data scientists, economists, and other technical teams to understand data requirements and translate them into technical solutions., • Communicate technical concepts effectively to both technical and non-technical audiences., • Participate in code reviews and knowledge sharing sessions. Automation & DevOps: • Implement automation for data pipeline deployments and other data engineering tasks., • Work with DevOps teams to implement and Build CI/CD pipelines, for environmental deployments., • Promote and implement DevOps best practices. Essential Skills & Experience: • 10+ years of experience in data engineering, with at least 3+ years of hands-on experience with Azure Databricks., • Strong proficiency in Python and Spark (PySpark) or Scala., • Deep understanding of data warehousing principles, data modelling techniques, and data integration patterns., • Extensive experience with Azure data services, including Azure Data Factory, Azure Blob Storage, and Azure SQL Database., • Experience working with large datasets and complex data pipelines., • Experience with data architecture design and data pipeline optimization., • Proven expertise with Databricks, including hands-on implementation experience and certifications., • Experience with SQL and NoSQL databases., • Experience with data quality and data governance processes., • Experience with version control systems (e.g., Git)., • Experience with Agile development methodologies., • Excellent communication, interpersonal, and problem-solving skills., • Experience with streaming data technologies (e.g., Kafka, Azure Event Hubs)., • Experience with data visualisation tools (e.g., Tableau, Power BI)., • Experience with DevOps tools and practices (e.g., Azure DevOps, Jenkins, Docker, Kubernetes)., • Experience working in a financial services or economic data environment., • Azure certifications related to data engineering (e.g., Azure Data Engineer Associate).

Paladign / Mainframe Developer 12 Month Contract London - 3-Days per week on-site One of our Banking clients in London is urgently looking for a Paladign / Mainframe Developer to join the team. You will ideally have: • 5 years of experience in Financial Services, with a strong focus on private banking., • 5 years of hands-on experience with Paladign, including solid knowledge of the update module., • Extensive IBM i (iSeries/System i/i5/AS/400) development experience (5+ years), using RPG and CL., • Working experience with all variants of RPG, including fixed format and free format RPG., • Previous experience with XML, MQ Series, SFTP (or other file transfer protocols), and SQL. Please apply with your up to date CV in English.

Data Developer – Hybrid - £800/day Inside IR35 | C# | ClickHouse | SingleStore | Rockset | TimescaleDB | 6-Month Rolling | I’m working with a commodities trading firm that’s embarking on a greenfield rebuild of their data-intensive trading platform, moving from traditional SQL infrastructure to a next-generation analytical stack built in .NET and ClickHouse. They’re looking for a Data Developer / Engineer with a strong C# background and solid experience working with analytical databases and modern data lake technologies. The Details • £800/day Inside IR35, • 6-month rolling contract, • Hybrid, 2 days onsite in London Key Focus Areas • Strong experience with .NET / C# (backend-focused), • Hands-on with analytical databases such as ClickHouse, SingleStore, Rockset, or TimescaleDB, • Experience with open-standard data lakes (e.g. Apache Iceberg, Delta Tables, Apache Spark, column stores), • Comfortable working with large-scale data ingestion and processing (batch or streaming) Data Developer – Hybrid - £800/day Inside IR35 | C# | ClickHouse | SingleStore | Rockset | TimescaleDB | 6-Month Rolling |

💻 Founding Engineer (Typescript/Rust) 🙌 Mid/Senior ⏰ AI Time Machine 🇬🇧 4 Days Onsite in London 💷 £60,000 - £100,000 (Permanent) + >1% Equity + Benefits Our client is a pre-seed startup building an AI website time machine — a platform that alerts users whenever tracked websites change. Backed by early traction with customers like Eleven Labs and Gradient Labs, the team is blending deep tech with a touch of AI to create a product that changes how the web is monitored. This is an opportunity to join at the ground floor as engineer no. 2, shaping not only the product but also the engineering culture and future growth of the company. We are looking for a Typescript Engineer who is excited to grow into Rust and take ownership of critical parts of the system. No prior Rust experience is required — this is a rare chance to learn Rust in production. Currently, the stack is around 70% Typescript, 30% Rust but fluid. Requirements • Strong Typescript experience (3+ Years), • Interest in learning Rust — no prior experience required, • SQL experience, • Cloud experience (AWS preferred), • Willingness to work 4 days onsite in London, • Comfort with cloud/infrastructure technologies (e.g. Kubernetes, Docker, AWS/GCP), • Experience in early-stage or startup environments is a plus Benefits • Salary from £60k - £100k, • Guaranteed pay rise upon Seed round of funding, • 30 days holiday + local national holidays, • Flexible Hours, • Minimum 1% Equity!, • Quarterly socials and workshops, • Pension match up to 5%

Job Title: Senior Data Engineer (Contract) Salary Range: £500–£550 per day (Outside IR35) Location / Working model: London | Hybrid (3 days on-site) Join a forward-thinking data environment where innovation meets scale. You’ll take ownership of designing and delivering high-performing data pipelines that enable smarter decisions across the organization. This contract offers autonomy, modern tools, and a platform to make real impact, ideal for a seasoned engineer who enjoys solving end-to-end challenges in the cloud. The Senior Data Engineer (Contract) will architect, build, and maintain robust data solutions within a Google Cloud Platform ecosystem. Role Highlights – Design and deliver scalable ETL and ELT pipelines using SQL and Python – Build and optimize data architectures in Google Cloud Platform (GCP) – Partner with analysts, product owners, and developers to ensure reliable data delivery – Champion best practices for governance, lineage, and performance – Enhance data observability and automate key workflows for efficiency You Will Need – Advanced hands-on experience with SQL, Python, and core GCP tools (BigQuery, Dataflow, Pub/Sub, Composer or similar) – Proven background in full-lifecycle data engineering and automation – Strong understanding of CI/CD and infrastructure-as-code for data systems – Experience with both batch and streaming data – Excellent communication and problem-solving skills in agile environments Why You’ll Love It – Outside IR35, £500–£550 per day – Hybrid working: 3 days per week in central London – Access to a cutting-edge GCP environment – Real ownership over technical design and delivery – Inclusive, collaborative culture that values technical excellence

London, UK (Hybrid - 2 days/week on-site) Permanent or Contract | £1,200-£1,500 Daily Pay Our leading multi-strategy hedge fund client with global presence, managing alternative investments across diverse catalyst-driven absolute return strategies. We leverage sophisticated technology and quantitative approaches to target alpha in global markets. IMPORTANT: ONLY APPLY IF YOU HAVE EXPERIENCE WITH TRADING PLATFORM SUCH AS ORCHESTRADE, MUREX, CALYPSO, CHARLES RIVER, OR SIMILAR TRADING SYSTEMS. The Role We're seeking an experienced Senior C# Developer to architect and build enterprise-grade trading and risk management systems. You'll design robust middle-tier solutions for high-frequency trading environments, working directly with traders, portfolio managers, and quants to understand complex financial products and translate requirements into scalable systems. Technical Skills: • 7+ years of professional C# and .NET development experience, • Deep expertise in distributed systems and messaging architectures (Kafka, RabbitMQ, TIBCO, or equivalent), • Solid understanding of architectural patterns: microservices, event sourcing, domain-driven design, • Proficiency with SQL and NoSQL databases in high-volume environments, • Strong async/await, multi-threading, and concurrent programming skills Domain Knowledge: • Deep understanding of financial products: equity derivatives, fixed income instruments, structured products, • Knowledge of trade lifecycle, pricing models, risk calculations, and market data handling, • Experience working directly with trading systems (not just data transfer/ETL roles), • Understanding of how products are structured, priced, and mature throughout their lifecycle Working Arrangement • Hybrid role: Minimum 2 days per week in London office, • Core hours overlap with US trading hours for London-based employees, • Regular video calls with distributed team members, • On-site collaboration with business users and stakeholders Please apply with an up to date resume for immediate consideration.

🚀 Remote Senior Data Engineer - Contract Opportunity Role & Logistics • Role: Senior Data Engineer (Databricks Focus), • Company: Global Technology Platform, • Location: UK Remote, • Contract Duration: 6 Months (multi-year scope), • Status: Outside IR35, • Rate: Competitive Day Rate The Project We are seeking a highly experienced Senior Data Engineer to lead the hands-on delivery of core data infrastructure for a critical, 6-month project. You will play a key role in designing and implementing scalable data solutions at the center of our technology platform. Key Responsibilities & Deliverables • Design, architect, and implement robust, end-to-end data pipelines (batch and streaming)., • Drive the adoption of modern data engineering practices within the project scope., • Act as a senior technical leader, providing guidance, mentorship, and code reviews to the engineering team., • Ensure rigorous engineering discipline, including CI/CD, testing, and monitoring standards are implemented and maintained., • Own data workflows from ingestion through transformation, quality assurance, modeling, and delivery to downstream systems. Essential Technical Requirements • 5+ years proven experience in a Data Engineering role, building production-ready pipelines., • Deep hands-on expertise with Databricks (PySpark/SparkSQL) environments (2+ years desirable)., • Expert proficiency in Python and SQL development., • Experience using Databricks., • Experience with cloud-based data platforms (Azure, AWS, or GCP)., • Prior experience in a senior contributor capacity, providing technical direction and oversight., • Experience with data modeling, data lakes/warehouses, and performance tuning is highly desirable. How to Apply Interviews are starting immediately. Please apply here.

Senior Software Engineer 📍Location: Onsite, London, United Kingdom ⌛Type: Full-time 💰 Compensation: Negotiable (Competitive salary + equity) About Ontik Ontik is an ambitious, early-stage B2B financial operations platform designed to streamline and simplify complex financial workflows for heavy duty industries. We’re scaling rapidly and looking for top-tier engineers to join our team. You’ll have the chance to work in a high-performance, ownership-driven environment, where you can make a direct impact on the product and help shape its future. Role overview As a Software Engineer (Full-Stack) at Ontik, you’ll play a pivotal role in building and scaling our financial operations platform. This is a hands-on, high-impact position where you will be directly responsible for delivering clean, scalable, and high-performance code. You will work closely with product managers, designers, and other engineers to solve complex problems and create intuitive solutions that help simplify financial workflows for our users. You’ll have the opportunity to own critical features and contribute to the overall architecture of our platform. We’re looking for an engineer who thrives in a fast-paced environment, embraces ownership, and is passionate about building software that makes a real difference. If you enjoy working with cutting-edge technologies, solving challenging problems, and iterating quickly in a collaborative environment, we’d love to hear from you. Essential experience • 5+ years of experience in software engineering, ideally with some experience in a startup environment., • A proactive, ownership-oriented attitude with the ability to take initiative and drive projects forward, • Proficiency in full-stack development using any object oriented language (we use .NET) and any modern javascript framework (we use React), • Experience working with databases (SQL and NoSQL), APIs, and web technologies., • Experience with cloud platforms (AWS, GCP, Azure), • Solid understanding of software engineering principles, including clean code, testing, and version control (git)., • Strong problem-solving skills and the ability to break down complex technical issues and deliver simple, effective solutions., • A collaborative mindset, with the ability to work closely with cross-functional teams to deliver high-quality products, • Excellent communication skills to articulate technical concepts to both technical and non-technical team members, • A passion for building robust, efficient software and a desire to continuously improve your skills and knowledge, • Familiarity with financial technologies, payment systems, or SaaS products, • Experience with continuous integration/continuous deployment (CI/CD) pipelines Desirable • Experience delivering challenging integrations with 3rd party systems, • Understanding of event-driven system design Why Ontik? At Ontik, we embrace a high-performance, ownership-driven culture where every team member plays a critical role in our success. We move quickly, take responsibility for our work, and continually strive for excellence. As a Software Engineer, you’ll have the opportunity to take ownership of key features, work with brilliant colleagues, and make a tangible impact on the future of our platform. If you’re ready to solve challenging problems, build innovative solutions, and contribute to a fast-growing startup, Ontik is the place for you.

Data Engineer | Social Impact Tech | Hybrid (London) | £60k Want to use your data skills for real social impact? 🌍 Join a purpose-driven tech company helping frontline workers prevent issues like homelessness and child neglect — where your work genuinely changes lives. You’ll help build and scale secure, high-performance data pipelines (Azure Data Factory, SQL, Python) that power products used across the public sector. Expect plenty of ownership, collaboration, and the chance to shape engineering practices in a growing team. What you’ll bring: • 3+ years’ experience in data/platform engineering, • Strong SQL + Python skills, • Hands-on with Azure Data Factory (or similar ETL tools), • A proactive, collaborative mindset Nice to have: CI/CD, Power BI, Azure DevOps, or public sector data experience. Why join: ✨ Work on tech that makes a real difference 💻 Hybrid setup (1–2 days/week in London) 💰 Competitive pay, private healthcare, 25 days’ holiday, enhanced parental leave + training budget If you want your code to do good as well as look good, hit apply or drop me a message for a quick chat.

Role: Python Software Developer - Treasury Location: London Industry: Hedge Funds Overview: A global multi-strategy hedge fund is looking to add an experienced Python Developer to join their Treasury team in London. The firm operates at hedge fund scale with a start-up pace, focusing on building high-performance trading platforms. In this role, you will design and develop cutting-edge trading, funding, and liquidity management systems, working directly with traders and decision-makers in a live-market environment. Responsibilities: • Architect and code resilient applications for trading, liquidity management, and funding operations using Python as the core language, with integration into data platforms and tools., • Engage directly with traders and treasury stakeholders during live situations, adapting to evolving requirements and delivering solutions on the fly., • Design and optimise data pipelines for real-time and historical treasury data, ensuring accuracy and performance in analytics., • Work with operations teams to deploy, monitor, and scale systems, ensuring uptime and quick incident response., • Identify technology gaps and inefficiencies, experimenting with new tools and design patterns to enhance speed and quality. Experience: • 5-15 years of software engineering experience, ideally in Treasury or from a hedge fund / buy-side firm, • Expertise in Python for designing and optimising complex applications, • Strong proficiency in data tools like Pandas, NumPy, SQL, and real-time data processing, • Familiarity with DevOps practices, including Linux, cloud platforms, and CI/CD (Docker/Kubernetes is desirable but not essential)., • Strong communication skills, managing technical and business conversations Compensation: Salary and bonuses are highly competitive DOE

Lead Data Engineer • Opportunity for a Lead Data Engineer to join a market leading Software House company in London, • Salary up to £150,000 + fantastic benefits including our share options, collaborative working culture and exciting growth opportunities and more WHAT WILL YOU BE DOING? As a Lead Data Engineer, you’ll take ownership of the entire data function — designing, scaling, and optimising the data platform that powers AI-driven products and insights. You’ll lead a small team of data engineers, set technical direction, and shape the company’s data strategy while staying hands-on with modern tooling across pipelines, cloud infrastructure, and data architecture. WHO WE ARE: As a recently founded company we develop technology to modernise workflows in the pet care sector. Our platform uses automation and AI to simplify routine tasks, reduce administrative burdens, and improve communication, allowing our professionals to focus more on care. With early funding and industry partnerships, we are gaining traction as an emerging player bringing efficiency and innovation to a traditionally outdated space. OUR BENEFITS: • Private medical insurance, • Life insurance, • Share options, • Exciting growth opportunities, • And More.. LEAD DATA ENGINEER – ESSTENTIAL SKILLS • Proven experience as a Senior or Lead Data Engineer in a fast-scaling tech or data-driven environment, • Strong proficiency in Python (or Scala/Java) and SQL, • Deep experience with data pipeline orchestration tools (Airflow, dbt, Dagster, Prefect), • Strong knowledge of cloud data platforms (AWS, GCP, or Azure) and data warehousing (Snowflake, BigQuery, Redshift), • Hands-on experience with streaming technologies (Kafka, Kinesis, or similar), • Solid understanding of data modelling, governance, and architecture best practices, • Familiarity with machine learning pipelines or AI model integration TO BE CONSIDERED… Please either apply by clicking online or emailing me directly . By applying to this role, you give express consent for us to process and submit (subject to required skills) your application to our client in conjunction with this vacancy only.

DX helps companies build world-class engineering organizations by providing leaders with deep insights into developer experience and productivity. We are a bootstrapped, profitable company experiencing consistent, 3X year-over-year growth. Based in downtown Salt Lake City, we are trusted by customers like Etsy, Dropbox, Twilio, Pfizer, and Booking Holdings. We are a small team of passionate top performers who are energized by making an impact on our customers and our company. As a Senior Solutions Engineer, you will be the technical and consultative expert for onboarding and integrating the technical components of our platform. You will work directly with engineering teams to understand their challenges, design tailored solutions, and ensure a seamless implementation process. This role combines technical expertise, communication skills, and a deep understanding of developer workflows. Candidates must be based in London, United Kingdom. • Lead implementation discovery sessions to understand client needs, existing workflows, and goals., • Ask thoughtful questions to uncover critical details about the client’s engineering processes, branching strategies, deployment workflows, and tooling., • Act as a trusted advisor for clients, providing guidance on best practices for deployment workflows and analytics integrations., • Design and propose tailored solutions to integrate the company’s APIs with client workflows., • Provide hands-on assistance with technical integrations, • Develop scripts or tools as needed to support client implementations., • Collaborate closely with Product, Engineering, and Customer Success teams to align client needs with product capabilities., • Share feedback from clients to help inform product enhancements and roadmap priorities. • Technical Skills:, • Exposure to programming (Ruby/Rails preferred) with a solid understanding of APIs and RESTful services., • Experience with version control systems like Git and the GitHub CLI., • Familiarity with SQL, • Knowledge of CI/CD pipelines, deployment workflows and branching strategies., • Consultative Skills:, • Excellent communication and presentation skills, with experience leading client discussions., • Ability to understand complex workflows and recommend solutions., • Strong organizational skills to manage follow-ups and deliver resources promptly., • Experience:, • 5+ years in a customer-facing technical role, such as implementations, professional services, or solutions engineering., • Experience working with engineering teams and tools like Tableau, GitHub, or similar developer ecosystems. • Have experience working with financial services customers. • Mentorship & growth. You’ll work directly with senior members of the Customer Engineering team who will mentor you as you grow your career at DX., • Ownership & impact. You’ll see the direct results of your efforts in our product’s performance and customer satisfaction., • Collaborative culture. We’re a tight-knit team that values curiosity, knowledge sharing, and learning from one another. Companies have all kinds of culture statements. At DX, we clearly define what we care about and how we judge performance. For us, success comes down to individual mastery—becoming exceptional at your craft. Those who pursue and exhibit mastery will thrive and be rewarded accordingly. While we can’t always control external outcomes, we consistently strive to perform at our absolute best. • Competitive salary and generous bonus structure, • Meaningful equity in a high-growth-stage startup, • 401(k) with 4% match, • Unlimited PTO, • Company-issued laptop and necessary equipment

Full-Stack Web Developer — React, FastAPI, Elasticsearch (AWS/GCP) As a Full-Stack Web Developer at Anecdote, you’ll own end-to-end product surfaces—from sleek React UIs to FastAPI services and Elasticsearch search/ —shipping fast, safely, and beautifully. You’re AI-native (Cursor, v0, Claude Code in your muscle memory), comfortable in both AWS and GCP, and you treat infra & DevOps as part of building great product, not an afterthought. You’ll collaborate directly with engineers, PMs, and the CTO to turn specs into production features used by brands like Grubhub, Booking, Dropbox & Uber. What you’ll actually do 50% Build — design & ship • Build responsive React (TypeScript) frontends (state mgmt, data viz, virtualized tables, forms, charts, file uploads, accessibility)., • Implement FastAPI services (async I/O, Pydantic v2, background jobs, caching) with robust testing., • Design Elasticsearch models & queries, • Ship and run services on AWS and/or GCP (ECS/EKS/Lambda or Cloud Run/GKE), containerized with Docker., • Own CI/CD (GitHub Actions), IaC (Terraform), logging/metrics/tracing (OpenTelemetry, CloudWatch/Stackdriver, Grafana/Prometheus), and SLOs., • Work closely with design/PM on specs and UX polish; pair with back-end/ML on data contracts and APIs., • Write crisp docs, PRDs/tech notes, and demo your work to execs & customers., • Owner’s mindset: you take ideas from zero → shipped → observed → iterated; you sweat details and outcomes., • AI-native builder: Cursor, v0, Claude Code (and friends) are daily drivers for rapid prototyping and refactors., • React + TypeScript mastery: component design, hooks, performance, testing (Vitest/Jest, Playwright)., • FastAPI expertise: async patterns, Pydantic schemas, pagination, auth (OAuth2/OIDC), rate-limits, background jobs., • Elasticsearch fluency: mappings/analyzers (ngrams, synonyms), aggregations, filters, sorting, performance tuning., • Cloud & DevOps: solid experience on AWS and/or GCP, Docker, Terraform, GitHub Actions, monitoring/alerts., • Datastores: Postgres (SQL, migrations), Redis (caching/queues)., • Quality & security: code reviews, type safety, lint/format, secrets mgmt, least-privilege IAM, basic SOC2 hygiene., • Communicates clearly with product sense; ships value weekly. About Clarity Anecdote is an innovative, AI-first startup revolutionizing how companies analyze customer feedback. Our AI-powered platform consolidates feedback from app reviews, support chats, surveys, and social media into a single, easily accessible space. This enables companies like Grubhub, Dropbox, Fubo, Booking.com, and Uber to derive actionable insights and deliver a better, real-time customer experience that drives sustainable growth. We’re backed by Neo, Sukna, Race Capital, Propeller, and Wamda.

London | Hybrid/Remote | £70,000 - £90,000 + stock options + Benefits Company Overview We’re a fast-growing FinTech building fairer and smarter lending solutions. Using advanced machine learning and rich financial data, we create credit products that improve outcomes for individuals and small businesses. Our mission is to make lending transparent, responsible, and accessible—and our models are at the heart of how we achieve this. Joining us means you’ll be part of a collaborative, hands-on team where your work directly contributes to how we assess and manage risk. The Role As a Senior Machine Learning Engineer, you’ll take technical ownership of our credit risk model suite — iterating, optimising, and deploying production-ready ML systems that drive real-world impact. You’ll remain hands-on in design and experimentation while mentoring 1–2 junior ML engineers. You’ll collaborate closely with credit analysts, data scientists, and the wider engineering team to ensure our models are accurate, explainable, and seamlessly integrated into our lending platform. What You’ll Do • Lead the design, training, and optimisation of credit risk and behavioural models using Python and frameworks such as XGBoost and scikit-learn., • Responsible for creating proprietary data enrichment algorithms., • Guide the evolution toward a self-learning model framework, improving automation and adaptability over time., • Design and oversee feature testing and evaluation to enhance predictive performance and interpretability., • Use BigQuery and GCP tools (including CloudRun) to manage and process large-scale datasets efficiently., • Ensure models are explainable and compliant, collaborating with credit and risk teams to interpret outcomes., • Mentor junior ML engineers through code reviews, technical guidance, and project planning., • Work with software engineers to productionise models (deployment and pipelines handled by the engineering team)., • Stay ahead of emerging ML techniques and bring new ideas to improve scalability, performance, and transparency. What We’re Looking For • 4+ years of hands-on experience in applied machine learning (preferably in financial services or another regulated domain)., • Proven ability to design, train, and evaluate models using Python, XGBoost, and related ML frameworks., • Strong experience with SQL and BigQuery; familiarity with GCP infrastructure., • Comfortable working end-to-end from data exploration through validation and interpretation., • Understanding of explainable AI and model governance practices., • Exposure to model monitoring and drift detection frameworks., • Ability to guide and mentor junior engineers while remaining deeply hands-on., • Strong communicator who can bridge technical and non-technical discussions with credit, risk, and leadership teams. Nice to Have • Experience with MLOps tooling (e.g., MLflow, Airflow, Vertex AI, or similar)., • Familiarity with real-time decisioning systems or lending analytics. What We Offer • Ownership of the ML roadmap for a growing fintech with proven traction., • Opportunity to shape team direction while staying close to the code., • Collaborative, fast-paced culture focused on experimentation and impact., • Competitive salary, stock options, and benefits., • Hybrid working and flexibility. Interview Process • Recruiter Call – Introduction & background, • Technical Interview – Deep dive into ML design, feature engineering, and evaluation, • Practical Task – Model development or analysis challenge, • Final Interview – Team fit, leadership approach, and business alignment

Experis Software Engineer Perm Salary DOE London, Bristol (Hybrid) DV or SC Clearance Essential Our client, a rapidly growing deep-tech consultancy, urgently require an experienced Software Engineer to join their team on a permanent basis. In order to be successful, you will have the following experience: • Experienced Software Developer/Engineer, • Strong background within Python, C++, C#, SQL, TypeScript, • Experience of Palantir technology is a bonus, • DV or SC Clearance is essential Within this role, you will be responsible for: • Delivering strategic advisory, engineering delivery, and enablement services to Government and commercial clients., • Solve user problems by drawing source and captured data into a single foundational data model and building operational workflows that materially change the decisions made, • Work closely with clients, to tailor products and services, • Design solutions for client problem sets based on their descriptions and by exploration of the data landscape, • Assist in the design, development, and maintenance of data pipelines and ETL processes to build data and action models to address the workflow needs, • Build and edit operational workflows, including front ends and decision-support toolsets, inclusive of native Palantir tooling and integrated front ends, • Collaborate with team members to implement AI and machine learning models against user problems, • Close working with clients, building deep and sustainable relationships that positions you/us as their “trusted advisor” For further information please contact

A growing global macro hedge fund is seeking a Technology Associate / Data Engineer to join its lean, high-impact technology team in London. The firm combines an entrepreneurial culture with institutional backing and is known for empowering talented individuals to take ownership, innovate, and shape its future. This is a hands-on engineering role at the intersection of technology, data, and business operations. You’ll work directly with teams across Trading, Risk, Operations, Finance, and Compliance to build tools, automate processes, and enhance the firm’s data and reporting infrastructure. The successful candidate will be someone who combines strong technical skills with curiosity, pragmatism, and drive — someone who takes pride in engineering fundamentals, thrives in a small team, and wants to see the commercial impact of their work. Key Responsibilities • Develop, maintain, and enhance data pipelines and ETL processes using Python and SQL., • Manage and integrate API connections and FTP data feeds into internal systems., • Build and support dashboards and reports to provide visibility across trading and operations., • Support and optimise the firm’s cloud infrastructure (Microsoft Azure) including VMs, data storage, and permissions., • Use Excel/VBA for automation and ad-hoc data analysis., • Implement Git-based version control and code management best practices., • Partner closely with business users to translate requirements into technical solutions., • Take ownership of projects that improve automation, scalability, and efficiency across the fund. What You’ll Gain • Autonomy and ownership from day one — your work will have immediate visibility., • Exposure to all parts of the business, from trading to operations., • The opportunity to shape the firm’s technology stack as it scales., • A flat, collaborative structure with direct access to senior stakeholders., • Competitive compensation and rapid career progression in a high-performing environment. Required Skills & Experience • Bachelor’s degree in a STEM field (Computer Science, Engineering, Maths, Physics)., • 2–4 years’ experience in a technical, data, or engineering-focused role., • Strong skills in Python, SQL, and Excel/VBA., • Experience building or maintaining ETL/data pipelines, particularly around APIs or FTP processes., • Working knowledge of Microsoft Azure and Git., • Excellent analytical, communication, and problem-solving skills., • A proactive, curious mindset and a willingness to take initiative. Desirable • Experience with dashboarding/BI tools (Power BI, Tableau, Streamlit)., • Familiarity with Linux scripting or workflow orchestration tools (Airflow, Prefect)., • Exposure to financial markets, asset management, or consulting environments. This role would suit someone who is technically strong, logical, and ambitious, with the maturity to take ownership in a lean setup. Ideal candidates may come from consulting, banking, or buy-side firms, or from smaller environments where they’ve had end-to-end responsibility. If you’re looking for a role that will stretch your technical breadth, give you real impact, and expose you to the inner workings of a hedge fund, this opportunity stands out. To apply, either send your resume to , or apply via the link above.

Lead Data Engineer - London - £85-90K - Investment Management / Asset Management Power BI/ MS Fabric/ SQL/ Python # A Data Lead Engineer is required to join an Investment Management client in London. The successful canddiate will go in and shape the firm’s data strategy, working closely with investment, and investment operations to understand data requirements and deliver effective solutions. You will also be responsible for leading projects, mentoring others on data practices, and driving innovation in how we collect, structure, and use data across the firm. Ideally you will have have Investment or Asset Management experience. We’re looking for someone who brings the following skills and experiences: • Proven experience in managing complex databases and developing API interfaces., • Strong proficiency in SQL and Python for data processing and automation., • Ability to handle large-scale data operations involving millions of data points daily., • Advanced Excel, SQL, and experience of reporting and business intelligence tools preferably Power BI., • Experience in leading projects. Apply today for immediate consideration

Role Summary Built upon the foundation of cutting-edge tech and exceptional talent, BGC Partners is a pioneering global brokerage and financial technology company servicing the financial markets. BGC is agile and dynamic in its approach, delivering world-class products and technology platforms to our diverse customer base daily. Whether you are a senior-level professional or just beginning your career, working at BGC Partners provides opportunities to develop skills, make an impact, and grow at an accelerated pace. About the Role GBX is BGC’s flagship platform for electronic trading solutions in the Credit and Rates markets. Used by thousands of brokers and traders daily, GBX is a strategic priority of the firm’s growth strategy. We are seeking a senior backend engineer to join our GBX Middle Office team, which supports real-time trade data transformation and integration. This role is critical to ensuring the reliability, scalability, and efficiency of our post-trade processing infrastructure. You’ll work in a production-grade environment with high complexity, collaborating with global stakeholders to deliver robust, maintainable solutions and drive technical improvements across the platform. Responsibilities • Develop new business features and improve existing system capacity, • Work on system architecture, code quality, and delivery best practices, • Analyze and modernize legacy components to simplify architecture and improve maintainability, • Improve testability, CI/CD, deployment reliability, and system observability, • Troubleshoot real-time trade data processing and integration issues, • 5+ years of professional Java experience, • Strong CS fundamentals and problem-solving ability, • Proficient with SQL and generic scripting, • Proficient with Linux server environments, • Background in CI/CD, infrastructure automation, and monitoring, • Experience working with large, interconnected systems and debugging across components, • Proven ability to simplify complex systems and improve deployment/testability, • Strong communication skills and team orientation, • Demonstrated ownership mindset and strong work ethic; ability to think clearly under complexity and ambiguity, • Experience in financial systems (trading lifecycle, middle office, etc.)

About ClearWatt ClearWatt is on a mission to make electric vehicle ownership transparent and accessible. Our platform combines real-world data, telematics, and proprietary analytics to deliver trusted insights into EV battery health, real-world range, and performance. We partner with car dealers, leasing companies, energy companies and consumers to help them understand the true condition of electric vehicles - unlocking confidence across the EV ecosystem. We’re scaling rapidly, building the UK’s most comprehensive EV data intelligence platform - spanning OBD diagnostics, API-based vehicle integrations, and real-time energy data streams. The Role We’re looking for a skilled Backend Developer with strong experience in C# and the .NET ecosystem to help us scale and evolve our core data and API infrastructure. You’ll play a central role in designing, building, and optimising services that power our EV testing, reporting, and data-sharing products. This role is primarily backend-focused, but familiarity with modern frontend frameworks (React/React Native/Next.js) is a bonus. Key Responsibilities • Develop and maintain robust, high-performance .NET 8+ APIs and services., • Work with Azure Functions, Blob Storage, Queues, and SQL/NoSQL databases to build scalable, event-driven systems., • Design and optimise APIs that serve our mobile and web products, including partner integrations., • Implement efficient RAG AI backend systems for introducing advanced LLM based features, • Collaborate with product managers, data engineers, and frontend developers to deliver new features end to end., • Write clean, maintainable, and well-tested code, following modern CI/CD practices (GitHub Actions)., • Contribute to architecture discussions around performance, scalability, and data integrity., • Help evolve our internal tools and services to support ClearWatt’s growing product suite. What We’re Looking For • 2+ years of professional experience with C# and .NET Core., • Experience building REST APIs or microservices at scale., • Familiarity with cloud-native design and Azure services., • Understanding of async programming, dependency injection, and distributed systems., • Strong grasp of database design and query optimisation (SQL and/or NoSQL)., • Comfortable working in a small, fast-paced team where you’ll have end-to-end ownership., • Passion for clean architecture, performance, and testable code., • Interest in the EV, sustainability, or data analytics space is a plus. Nice to Have • Experience with React / Next.js / React Native or TypeScript., • Experience integrating third-party APIs (OEM, OBD, or telematics data)., • Familiarity with data pipelines and event-driven design., • Understanding of CI/CD automation and GitHub Actions workflows. What We Offer • Competitive salary and equity options., • Hybrid working (London-based team with flexible hours)., • Work directly with founders and management on industry-defining technology., • Opportunity to shape the architecture of a platform at the forefront of EV intelligence., • A culture of autonomy, purpose, and impact - your work will be shipped, seen, and used.

Title: C#/.NET Developer Client: Elite Buy-Side Fund Salary: Up to £70,000 + Bonus + Benefits Location: London (Hybrid) The Opportunity: Seeking a Junior C# / .NET Developer to join their high-performing engineering team. This is an exceptional opportunity to work alongside experienced technologists and investment professionals building mission-critical systems that drive trading, research, and risk management operations. Your Responsibilities (Full Spec. Available): • Collaborate with senior developers and quantitative analysts to deliver reliable, high-performance software solutions;, • Develop and maintain .NET-based applications within a high-performance grid computing environment;, • Driving innovation by exploring new technologies, machine learning and cutting edge tools to advance competitive edge. Who You Are: • Recent graduate with stellar academics and 1-5 years of relevant experience, • Strong proficiency in C# and .NET, • Experience with multithreading, asynchronous programming, and SQL Server, • Proven ability to tackle complex challenges with initiative and agility in high-pressure environments Apply now or reach out directly: for more details

C# Developer – Contract (Hybrid, London) Rate: £415 per day (Umbrella only) Location: London – Hybrid, minimum 3 days a week onsite near Canary Wharf Contract: Initial 6 months with extensions likely We’re looking for an experienced C# Developer to join a busy development team within a leading financial environment. The role involves designing, developing and supporting a range of business applications built on the Microsoft .NET platform. You’ll be working closely with database and infrastructure teams, supporting both new and existing systems in a fast-paced environment. Key Responsibilities: • Develop and maintain applications using C# and the .NET Framework, • Support and enhance existing Windows and web-based systems, • Work with SQL Server and Oracle databases, writing efficient T-SQL and PL/SQL queries, • Follow change management and release procedures to ensure system stability, • Troubleshoot application, database and environment issues across multiple teams, • Strong C# / .NET development background, • Good understanding of object-oriented programming, • Experience with SQL Server or Oracle databases, • Familiarity with IIS and Windows application development, • Exposure to DevOps, CI/CD tools or Agile environments

Full Stack Engineer — Python, TypeScript, React Location: London (On-site, 5 days/week) Salary: £80,000 – £130,000 + Equity Our client is building a platform that brings AI into real-world operations by teaching models how specific companies operate. Growing in London and looking for product-focused engineers who want to work on complex systems and meaningful technology. You’ll be one of the first hires on the London platform team, working closely with experienced founders and senior engineers who previously built large-scale AI systems. Responsibilities: • Build and iterate on a fast, scalable user-facing platform., • Work across the stack with Python, TypeScript, React, and SQL., • Collaborate with the core platform team on new features and infrastructure., • Contribute to the design, architecture, and delivery of product-focused systems., • Solve technically challenging problems for novel technologies. Requirements: • MUST HAVE: Full-stack experience in product or platform engineering., • MUST HAVE: Strong proficiency in Python, TypeScript, React, and SQL., • Bonus: familiarity with Rust or C, or a passion for learning new languages., • MUST HAVE: Strong communication, • Interested in building real products, not research prototypes., • We’re looking for product engineers. This is not an AI/ML engineering role. Why Join: • Early engineering role with high impact and ownership., • Competitive salary and meaningful equity., • Work directly with a high-calibre team solving complex, production-level problems., • Help shape a platform tackling one of AI’s biggest real-world challenges.

Senior Data Engineer London (Hybrid) Up to £80k DOE About the Company We’re partnered with a rapidly scaling AI-driven SaaS business that helps global enterprises unlock the potential of their data. They are entering a really exciting next phase of expansion - scaling their platform, deepening automation and developing their AI solutions. About the Role This business is looking to hire a very talented Senior Data Engineer to take a leading role in building and scaling the data foundations of the platform. You’ll combine strong SQL and Python skills with a DevOps mindset, architecting pipelines, automating workflows, and ensuring AI outputs are production-ready. Requirements • 3+ years’ experience in Data Engineering or Data Platform development, • Experience working with First-Party Data, • Strong SQL and Python fluency (data transformations, orchestration, automation), • Expertise in data modelling (dimensional, event-based, ML-aligned), • Experience with helping to build ML models and orchestrating into production, • Familiarity with cloud ecosystems - Azure, AWS, or GCP, • Experience with CI/CD tools (Azure DevOps, GitHub Actions, or similar), • Excellent communication skills and a structured, detail-oriented approach, • BSc in a related STEM degree from a top university ** Please note that visa sponsorship is not available

Lead .NET Engineer - Hybrid - £700/day Outside IR35 | WeathTech Platform | Digital Wealth | Azure | Microservice Architecture We’re seeking a Lead .NET Engineer to join a cutting-edge WealthTech platform on a contract basis. This is a hands-on technical role, driving the development and delivery of high-performance investment and portfolio management solutions. Location: London, hybrid Contract Length: Initially 12 months Day Rate: £700/day Outside IR35 About the Role: As a Lead .NET Engineer, you’ll be responsible for the architecture, development, and deployment of core features on a digital wealth and investment platform. You will work closely with product owners, data teams, and other developers to deliver secure, scalable, and compliant solutions for investors and advisors. Key Responsibilities: • Lead the development of. NET-based backend systems for investment, portfolio, and tax-efficient schemes (EIS/SEIS)., • Design, implement, and maintain scalable APIs and services that support high-volume transactions and real-time calculations., • Collaborate with Product Owners and Tech Leads to translate business requirements into technical solutions. Skills & Experience: • Strong experience with C#/.NET Core and associated frameworks., • Proven experience building and maintaining financial or investment platforms., • Experience with relational databases (SQL Server, PostgreSQL) and data modeling., • Familiarity with cloud platforms Azure and microservices architecture., • Knowledge of financial regulations, investment products, or EIS/SEIS schemes is highly desirable. Lead .NET Engineer - Hybrid - £700/day Outside IR35 | WeathTech Platform | Digital Wealth | Azure | Microservice Architecture

About Perlon AI At Perlon AI, we're building the future of digital sales agents to handle routine work end-to-end, freeing humans to focus on what they do best - creating, innovating, and building meaningful relationships. Every company needs to sell, and the B2B Sales space presents one of the biggest single opportunities for AI innovation. McKinsey estimates that gen AI could open up an incremental $0.8 trillion to $1.2 trillion in productivity across sales and marketing. Gartner forecasts that within just a few years, 60% of B2B seller activities will be executed via generative AI technologies. And our early traction proves the direction things are headed. In little over a year, we have signed dozens of customers including publicly listed companies and series-E fintechs. We are backed by a leading VC and have established a global customer base across North America, Europe, Asia and MEA. We are growing 25% month-on-month and are now looking to expand our engineering team. Here’s what you can expect: • Work alongside a skilled team of experienced and high-performing engineers and commercial operators., • End-to-end ownership. You will be entrusted with complete ownership over projects., • Daily shipping. We care a lot about product velocity and tend to push updates several times a day., • Work with a modern tech stack. (NextJS, Vercel, Planetscale, Inngest, LLM Agent frameworks), • Autonomy: You will often work autonomously to take charge of your projects, make decisions, and drive your work forward. What you’ll do: • Build full-stack features using modern frameworks and tools., • Tackle scalability challenges., • Work on the most important, highest impact product updates. You should: • Be proficient in NextJS, especially the app router., • Feel very comfortable with Typescript, React, and SQL., • Have experience building products for scale., • Have a passion for engineering, know best practices and understand how to apply them., • Thrive as a 0 to 1 product engineer. What we offer • Competitive base salary (£70-£90k, DOE), • Annual bonus (based on company performance), • Meaningful equity allocation, • 25 days paid holiday + bank holidays, • Private pension, • Remote-working opportunities, • All the equipment you need to succeed We are an equal-opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

💻 Junior Big Data Developer (Python & SQL Focus) 📊 !!! URGENT HIRING !!! Looking for London based Citizens/Dependents We're looking for an enthusiastic and detail-oriented Junior Big Data Developer to join our data engineering team. This role is ideal for an early-career professional with foundational knowledge in data processing, strong proficiency in Python, and expert skills in SQL. You'll focus on building, testing, and maintaining data pipelines and ensuring data quality across our scalable Big Data platforms. Key Responsibilities • Data Pipeline Development: Assist in the design, construction, and maintenance of robust ETL/ELT pipelines to integrate data from various sources into our data warehouse or data lake., • Data Transformation with Python: Write, optimize, and maintain production-grade Python scripts to clean, transform, aggregate, and process large volumes of data., • Database Interaction (SQL): Develop complex, high-performance SQL queries (DDL/DML) for data extraction, manipulation, and validation within relational and data warehousing environments., • Quality Assurance: Implement data quality checks and monitoring across pipelines, identifying discrepancies and ensuring the accuracy and reliability of data., • Collaboration: Work closely with Data Scientists, Data Analysts, and other Engineers to understand data requirements and translate business needs into technical data solutions., • Tooling & Automation: Utilize version control tools like Git and contribute to the automation of data workflows and recurring processes., • Documentation: Create and maintain technical documentation for data mappings, processes, and pipelines. Required Skills and Qualifications Core Technical Skills Skill Area Requirements Programming Strong proficiency in Python for data manipulation and scripting. Familiarity with standard Python data libraries (e.g., Pandas, NumPy). Database Expert-level proficiency in SQL (Structured Query Language). Experience writing complex joins, stored procedures, and performing performance tuning. Big Data Concepts Foundational understanding of Big Data architecture (Data Lakes, Data Warehouses) and distributed processing concepts (e.g., MapReduce). ETL/ELT Basic knowledge of ETL principles and data modeling (star schema, snowflake schema). Version Control Practical experience with Git (branching, merging, pull requests). Preferred Qualifications (A Plus) • Experience with a distributed computing framework like Apache Spark (using PySpark)., • Familiarity with cloud data services (AWS S3/Redshift, Azure Data Lake/Synapse, or Google BigQuery/Cloud Storage)., • Exposure to workflow orchestration tools (Apache Airflow, Prefect, or Dagster)., • Bachelor's degree in Computer Science, Engineering, Information Technology, or a related field.

Quant Engineering (Python - OMS/EMS) The mandate: Our client—a global, multi-asset investment manager—has rolled out cutting-edge large-language-model coding assistants across its Risk & Portfolio-Tech organisation. They now need a senior engineer who can turn “moon-shot” ideas into production tools, guiding the business on what LLMs can really do and delivering rapid-fire prototypes that become mission-critical apps. What you’ll tackle • Spot the pain-points across Equities, Credit, Rates and central Risk teams; translate data-flow headaches into buildable tech projects., • Prototype at pace in Python—leveraging LLM co-pilots—to stand-up analytics services, REST APIs and lightweight Dash/React front-ends., • Own the full stack: data ingestion (SQL, files, feeds), business logic, web/UI, CI pipelines and Linux deployment., • Codify best practice for safe, auditable LLM-assisted development; lead code reviews and knowledge-share sessions., • Stay user-facing—white-board with quants, ask clarifying questions, iterate live and keep comms flowing. You in a nutshell • 5 + years building production-grade Python systems for data-heavy businesses; comfortable with tests, version control and optimisation., • Confident SQL, exposure to REST and messaging (Rabbit, Kafka, etc.), and enough Linux to troubleshoot on the command line., • UI chops in Dash, Flask or React to whip up proof-of-concept dashboards., • Solid grounding in financial products & risk metrics—equities, bonds and derivatives; VaR, stress, PnL explain., • Excellent communicator who never “goes dark”, loves prototyping and isn’t afraid to ask the awkward question., • A self-starter ready to jump into the deep end and push tech (and yourself) beyond comfort zones. Bonus points for: prior hands-on with Copilot / CodeWhisperer, AWS data tooling, containerisation and a history of mentoring juniors. Why join? You’ll become the go-to explorer for one of the buy-side’s most ambitious data-tech stacks—turning previously impossible ideas into daily reality and watching users’ eyes light up when the numbers land in seconds, not hours. Interested? Reply with your CV or reach out for a confidential chat.

Software Engineer – AI Infrastructure | Up to £130K + Equity | London We're working with a stealth-stage AI infrastructure startup in London, founded by ex–Palantir engineering leads. Their mission is to help enterprises structure and automate messy internal data and processes, one of the biggest challenges businesses face AI today. They’re hiring a Backend Engineer (3+ years’ experience) to take ownership of core backend systems end-to-end, from infrastructure to database design. Ideal Profile: • Strong experience with Python and SQL, • Familiarity with FastAPI, Pydantic, and PostgreSQL, • Bonus: experience with lower-level languages such as Rust Role Details: • Compensation: £80K–£130K + equity (0.1–0.3%), • Location: On-site in London, 4/5 days per week (may become more flexible over time), • Team: ~10 people, backed by top-tier investors (Seed stage, ~$6M raised, founded in 2024), • Interview Process: 3 stages This is an exceptional opportunity to join a small, world-class team at the forefront of AI infrastructure, ideal for engineers who thrive in fast-paced, high-ownership environments and want to build something truly impactful.