Front office jobs in United Kingdom

Assistant Front Office Manager - London. We are seeking a dynamic Assistant Front of House Manager to join our Reception Team.

Our client is a global Financial institution based in the City. Due to expansion, they are seeking a Fluent Mandarin speaker to join their front office team. The role would be assisting a Team of Relationship Managers who cover Trade Finance products. The ideal candidate would have credit analysis skills and had previous experience of Trade finance products. Training would be available for candidat... ZIPC1_UKTJ

Job Type: Contract (until end of March 2026), Hybrid (2 days a week in office).We are seeking an experienced Full Stack Developer to join our team.The successful candidate will have a proven track record in both front-end and back-end development, with strong skills in Java, Python, and API developm

In this front office position, you will lead client interactions and drive the execution of commodity trades within the Metals and Energy sector, with a primary focus on Precious Metals products.You will work closely with a diverse range of clients to deliver tailored solutions, where you will suppo

Butler to join our Front Office team.Are you a master of craft?Do you thrive in a team that succeeds together, demonstrating integrity and respect while acting responsibly? Do you embrace a growth mindset? We invite you to become a fan of the exceptional.Mandarin Oriental Hotel Group is the award-wi

We are currenlty supporting a leading global investment bank in their search for an LLM Quant to help build and deploy next-generation models within their front office quant team. Hands-on professional experience in LLM modelling.

Strong hands-on/commercial coding experience in Kotlin.

Join a pioneering team that’s redefining how AI and cloud-native platforms power front-office trading. If you’re passionate about building something unique, ahead of the curve, and never done before, this is your chance to make it happen.

Up to £130k base salary + Bonus + Package.Extensive Java experience needed (ideally with versions up to 21).This firm is an elite investment institution that uphold extremely high tech standards.They are made up of some exceptionally talented individuals who above all are passionate about using the

Report to the CTO and Head of Data Science in this global commodity trading house.The team is in place to bridge the gap between front office analytics and the wider IT team – You’ll be the architect and go-to person within a team of data engineers and DevOps engineers supporting architectural d

We are currently recruiting an experienced Java Developer to join the Rates eTrading team at a leading investment bank, working on a range of high-impact, business-facing projects. In this role, you will collaborate closely with traders and quants to gather business requirements and contribute to the design and development of high-performance, pre-trade applications. Key Responsibilities • Work with front-office stakeholders to design, develop, and enhance pre-trade applications., • Deliver performant, reliable, and scalable trading solutions., • Optimise system latency, throughput, and resilience. Required Skills & Experience • Strong Core Java development experience, • Strong experience around RFQs and ION, • Experience building high-performance trading applications for Rates, Fixed Income., • Experience developing real-time, low-latency and high-throughput systems., • Advanced knowledge of multithreading and concurrency., • Solid understanding of data structures, algorithms, and memory management., • Experience in pre-trade application development., • Familiarity with market data, FIX protocol, KDB+, and time-series data., • Strong front-office communication skills, with experience working directly with traders and quants To be considered for this role, please submit your CV highlighting your relevant business and technical skills.

Title: C# Developer Rate: Up to £750/day Location: London (Hybrid) The Opportunity: I am working with a leading global investment bank seeking a C# Developer to join their high-performing FO Trading 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. What You Bring (Required): • Deep commercial experience engineering C# / .NET solutions within mission-critical financial services platforms, • Hands-on delivery of enterprise risk platforms (Market, Credit, Counterparty Risk, XVA) with solid understanding of rates, FX, equities, and derivatives, • Experience with distributed and message-driven architectures, including ActiveMQ, plus full-stack exposure with Angular, • High engineering standards, applying SOLID principles, proven design patterns, CI/CD, and building maintainable, cloud-ready services (OpenShift desirable), • Demonstrated ability to partner effectively with quantitative researchers, risk teams, and front-office stakeholders to deliver production-grade solutions Who You Are: • You thrive in fast-paced investment banking environments, • Designs and owns mission-critical systems where performance and correctness matter, • Makes strong architectural decisions under delivery pressure, • Trusted technical partner to front office, risk, and quants Apply now or reach out directly: for more details

We’re partnering exclusively with one of London’s most prestigious trading powerhouses to hire a standout Front-End Software Engineer — someone who lives and breathes elegant UI engineering and wants to build products that matter at millisecond scale. This is your chance to work at the core of high-performance trading tech, crafting ultra-fast, hyper-polished interfaces used by some of the sharpest and most demanding minds in global finance. What You’ll Be Doing • Building lightning-fast, data-intensive UIs using React and TypeScript, • Partnering with back-end engineers, traders, and product leads to shape next-generation trading tools, • Designing and evolving front-end architectures for real-time data and complex visualisations, • Working in an environment where craftsmanship, performance, and code quality are taken seriously — every single day Tech Stack • Languages: TypeScript, JavaScript (ES6+), • Frameworks: React, Redux (or similar state management), • Tooling: Webpack, Babel, Jest, ESLint, Git, • Bonus: WebSockets, performance profiling, custom charting (D3.js, Highcharts) What They’re Looking For • Deep expertise with React and modern TypeScript/JavaScript, • Strong architectural thinking, performance tuning skills, and component design mastery, • Experience in fast-paced, high-impact environments (trading, gaming, or top-tier tech), • A passion for building clean, scalable, beautifully engineered UI systems Why Join? • Build mission-critical tools that influence real-time trading decisions, • Work shoulder-to-shoulder with brilliant engineers and front-office teams, • Enjoy a flat, engineering-led culture with rapid iteration and true ownership, • Gain access to cutting-edge tooling, full autonomy — and compensation that reflects elite performance Compensation: £120k–£180k base + exceptional bonuses

Job Title: Test Automation Engineer (Front end & API) Sector: Test consultancy specialising in financial services Essential Skills: Playwright (Typescript or JavaScript) and API Automation Location: Primarily remote with c1 day per month in the consultancy office in Berkshire & client visits when requested Salary: £45-50,000/annum + benefits Start Date: We require someone to start immediately Saffron QA is the recruitment partner to a successful and expanding software testing consultancy. The organisation has a reputation for providing high calibre software testing services within the financial services sector. We are in the market for a Test Automation Engineer with previous experience of designing and developing test automation frameworks in Playwright using either Typescript or JavaScript. We also require someone with good API automation experience and we are open to various tools and programming languages. The ideal candidate will be keen to progress their career in a consulting environment, where they can contribute to multiple projects, using a range of tools and technologies. You will be responsible for supporting the consultancy on test automation proof of concepts as well as presenting and demoing solutions to clients. We are looking for a candidate with the following experience; • Proven experience and ability to create test automation frameworks from scratch using Playwright and JavaScript or Typescript., • Experience of designing API automation solutions, • Develop CI Test Pipeline on the creation, maintenance, and improvement of CI tools such as MS Azure, Jenkins, GitHub Actions., • Experience working with version control tools like GIT, GIT hub, Bitbucket and Azure Repos., • Establish and uphold coding standards for automation tools and processes., • Participate in the continuous improvement of the Quality Engineering process, including the implementation of best practices and automation strategies., • Create and maintain code and documentation for project work., • Provide regular status updates and reports on testing progress to the Test Manager and stakeholders. This position is being offered on a 6-month fixed-term contract basis (possible extension or permanent employment options) and offers a salary of up to £50,000/annum. This is an immediate opening and require someone to start asap. *Must hold British passport or ILR due to background checking process. No Visa sponsorship available.

Full Stack Post Trade Developer – Elite Systematic Hedge Fund – C#, Angular/React, SQL – London – Multiple Headcount – Market Leading Compensation One of the world’s most forward-thinking systematic hedge funds is expanding its Post-Trade Technology group and is hiring a Post-Trade Developer to build the external-facing systems used by their global investors and stakeholders. This team sits at the heart of the firm’s post-trade operations and works directly with Middle Office, Fund Accounting, Management Accounting, and Compliance. With a brand-new growth mandate in place, they are doubling the size of the team and bringing on multiple engineers. If you enjoy full-stack development, clean engineering, and building polished user-facing tools for a highly sophisticated financial environment, this is a standout opportunity. The Role As a Client Solutions Developer, you will help build and maintain: • Investor portals and external reporting platforms (think winton.com-style portals), • Client-facing dashboards, visualisations, and bespoke reporting tools, • High-quality UI components and micro-apps used by investors, operations, and senior stakeholders You’ll work closely with analysts, PMs, and developers in a lean, technically strong team where projects are shared and impact is visible. Tech Stack • Frontend: Angular / React, • Backend: C#, • Database: SQL Server What They’re Looking For • Strong full-stack engineer (C#, SQL + Angular/React), • Experience building client-facing or external web applications, • Ability to collaborate closely with business teams, • Finance experience is a plus, but not required, • Academic backgrounds in Comp Sci, Physics, Engineering, or similar are welcomed Why This Role Is Unique • Build front-facing tools used by global investors, • Work across middle office, accounting, compliance, and tech, • Join a highly intelligent team with strong academic backgrounds, • Real ownership over products in a low-bureaucracy environment, • Multiple headcount → real growth, not backfilling If you want a full-stack role with real ownership, smart colleagues, and a modern technical environment, this is one of the top opportunities in London right now.

[Up to c. £140k Comp Package | On-Site Working] Role Overview We’re supporting a globally recognised multi-strategy investment firm searching for an Infrastructure Engineer to join a specialist team that partners directly with Portfolio Managers and Analysts. This is a hands-on, business-facing role that blends infrastructure engineering with high-touch user enablement. You’ll help front-office teams make effective use of the firm’s platform and cloud ecosystem, while collaborating with core engineering groups to streamline workflows, improve tooling, and resolve complex issues. You’ll work closely with the London team lead, gaining exposure to modern compute platforms, research environments, and cloud services. This position suits someone who enjoys operating between technical engineering teams and investment professionals, and who thrives in fast-paced financial environments... Key Responsibilities • Help users adopt and make effective use of AWS, Kubernetes, Terraform, Airflow, Jenkins, Coder, and other cloud/platform technologies, • Streamline operational workflows by automating routine tasks, enhancing documentation, and building out knowledge bases, • Work with engineering and analytics groups to improve data pipelines, deployment processes, and platform integrations, • Act as a primary contact for PMs and Analysts, offering hands-on support and guidance across platform, data, and infrastructure services, • Liaise across cloud, infrastructure, research, and application teams to identify issues, coordinate fixes, and drive platform enhancements, • Manage and resolve incidents with urgency, ensuring a consistent and reliable support experience for front-office teams, • Contribute to the evolution of internal tooling by applying scripting and automation skills across Linux-based environments, • Work with messaging technologies such as Kafka or RabbitMQ when resolving issues or supporting application teams What You’ll Bring… • 4-7 years’ experience in infrastructure engineering, platform support, DevOps-aligned roles, or technical front-office support within financial services, • Strong practical experience working with Linux systems, • Solid scripting/automation ability using Python, with Bash or PowerShell also beneficial, • Clear, structured communication skills - able to support demanding users and work collaboratively with engineers, • Familiarity with AWS or other major cloud providers, plus comfort learning new platform technologies, • Understanding of workflow automation, CI/CD concepts, and modern data tooling, • Exposure to messaging systems such as Kafka or RabbitMQ, • Experience with CTRM/ETRM platforms or distributed data workflows, • Strong academic background from a selective or highly reputable university (or international equivalent), • (Preferred) Experience supporting discretionary, macro, commodities, or multi-asset investment teams ...

.NET C# Contractor – Commodities Trading Systems Contract Length: 12 Months IR35 Status: Inside IR35 Location: London, UK Rate: £650 (Inside IR35) Essential: Experience in interviewing and building out a team. VISA - NO SPONSORSHIP AVAILABLE Overview We are seeking an experienced .NET C# Contractor to join a major technology initiative within a leading commodities trading organisation. The successful candidate will work on the enhancement, integration, and optimisation of trading and risk applications used across front, middle, and back-office functions. This role is suited to a hands-on engineer with strong technical depth and proven experience working directly within commodities trading environments. Key Responsibilities • Develop, enhance, and maintain .NET/C# applications supporting trading, risk, and operational workflows, • Work on system integrations across front-office trading platforms, risk systems, and operational tools, • Collaborate with architects, product owners, and business analysts to deliver high-quality, production-ready solutions, • Support API development, data pipelines, and services used across trading desks, • Troubleshoot and optimise application performance, ensuring stability and scalability, • Participate in Agile ceremonies and contribute to the continuous improvement of engineering practices, • Assist in migrating legacy components into modern .NET frameworks where required Essential Skills & Experience • Strong commercial experience with C#/.NET development, • Proven background working within a commodities trading company (oil, gas, power, metals, or similar), • Deep understanding of trade lifecycle, PnL, risk, and market data flows, • Experience integrating trading or risk platforms with downstream systems, • Strong SQL skills and experience with relational databases, • Solid understanding of messaging, APIs, and service-based architectures, • Ability to deliver clean, maintainable, and well-tested code within deadlines, • Strong communication skills and confidence working closely with front-office and technology stakeholders Desirable Skills • Exposure to cloud environments (AWS or Azure), • Experience with CI/CD pipelines and DevOps tooling, • Familiarity with pricing, analytics, or risk engines, • Knowledge of event-driven architectures or microservices What’s on Offer • Opportunity to work on mission-critical systems within a major commodities trading environment, • Collaborative culture with significant responsibility and business visibility, • Chance to work on modern architectures and high-performance trading technology

SAP Environments Manager We are looking for an experienced SAP Environments Manager to join our Technology function on a permanent basis in either London Joining a newly created team and reporting into the ERP Programme Director, the SAP Environments Manager will support a large-scale SAP transformation programme alongside BAU business requirements analysis, coordinating and managing the Test, Staging and Production environments. You will collaborate closely with all SAP team members and wider Technology Centres of Excellence to ensure environments are robust, sustainable and supportive of a highly complex and integrated application landscape. Salary & Benefits • Salary: Up to £70,000, depending on experience, • Bonus: 12% annual bonus potential, • Benefits: Band 2 benefits package, including a variety of wellbeing, lifestyle and financial benefits, • Hybrid Working: 2 days per week in the London office, with occasional travel to the Frating (Colchester) site About the team The Technology team provides expertise and effective solutions across the organisation. We embrace flexibility and agility, working collaboratively within a one-team culture. We hold ourselves accountable, welcome change and deliver consistently for our stakeholders. The role Key responsibilities include: • Taking full ownership of SAP environment management—ensuring stability, performance and continuous improvement, • Matching environments with programme and business requirements, identifying bottlenecks and ensuring environments are fit for purpose, • Working with other Centres of Excellence to align multi-platform environments, • Identifying and coordinating SAP test environments across a diverse application landscape, • Data housekeeping, interface maintenance and data refresh coordination, • Developing an understanding of data trend analytics across SAP environments, • Leading and coordinating triage for outages affecting Test environments, • Making recommendations around the provision of soft/hard/middleware, • Leading, coordinating and reporting on deployment activities, • Running deployment checklists and countdown processes, • Managing post-deployment issues and supporting contingency planning, • Designing and implementing appropriate change management processes, • Delivering a pragmatic approach that protects Live Service while meeting programme and business demands What you’ll bring Essential: • Extensive experience as an Environments Manager, working with SAP applications and cloud technologies, • Strong experience in SAP ECC, SAP HANA DB and BTP, • Understanding of S/4HANA, Concur and SAP Signavio, • Clear, timely and transparent communication skills, • Experience with SQL / MS Access / Selenium (or similar reporting tools), • Experience with cloud / virtual machine services (Azure / AWS), • DevOps experience (CI/CD, pipelines, branching, merging, Terraform, ARM), • Strong understanding of workflows and processes for releasing code across multiple environments, • Experience working in relevant technical environments, including front-end and legacy technologies, • Experience building new processes and implementing new ways of working Preferred: • Strong strategic decision-making ability, considering risk, long-term implications and stakeholder needs, • Ability to thrive in fast-paced, high-pressure environments, • Ability to quickly assimilate complex information and make informed recommendations, • Comfortable working with ambiguity and driving deliverables forward Application instructions Please apply with your CV as soon as possible. Applications will be reviewed on a rolling basis, and the advert may close at any time, so early application is encouraged.

Working for an industry leading, high-growth SaaS business with some of the biggest brand names in the world as customers, the Senior Software Engineer will build innovative next-gen solutions that are at the forefront of the industry. In this role, the Senior Software Engineer will be given full autonomy, taking ownership from design phase through to deployment, building scalable backend systems, as well as some frontend too if you like. This area is the future of the company (and the industry!) and as such has strong investment and visibility. The Senior Software Engineer will be responsible for leading the design, build and deployment of industry leading software solutions. You’ll work in collaboration with product, design and the wider engineering team to improve and scale existing features, as well as build brand new ones. The Senior Software Engineer will have: • Strong backend or full-stack software development experience, • Strong backend coding experience, ideally in either Golang (Go) or Java, • Any front end experience is a bonus (e.g. React), but not a must-have, • Experience with cloud platforms e.g. AWS, Azure, GCP - Google Cloud, • Experience with data warehouses e.g. BigQuery, Redshift, Snowflake, • Ability to work collaboratively, • Open to new AI tools and technologies, • Could come from roles like Senior Backend Engineer or Senior Full Stack Engineer They offer a great package on top of your basic salary, including a bonus, stock, private healthcare and a generous pension. With the growth that they are going through, there is also plenty of opportunity for career progression. Senior Software Engineer London / hybrid (ideally 2 days in office) £100k + bonus, stock + benefits

About the Role Join a mission-critical team within our firm’s cutting-edge platform engineering function, supporting platform for front-office developers (quants and strategists) in a unique hands-on opportunity within a focused, high-impact team. You’ll be at the forefront of data and cloud-native engineering, working with modern technologies across AWS, On-premise kubernetes, Python, and data pipelines, while engaging directly with key internal platforms and front-office business developers. If you are passionate about solving hard technical problems, staying current with trends like AI Engineering, and want to make a difference in a globally respected financial institution, this role is for you. The successful AWS Data Engineer candidate will have the chance to make a significant impact in designing the platform and working on cutting-edge technologies like Databricks and Snowflake in the heart of a leading global Investment Banks’ front-office. This is a rare greenfield role that offers the opportunity to solve the ultimate data pipeline challenge faced by all banks, working closely with various businesses and gaining an overview of many different sectors. What We’re Looking For • 5 + years, hands-on experience in AWS data engineering technologies, including Glue, PySpark, Athena, Iceberg, Databricks, Lake Formation, and other standard data engineering tools., • Strong experience engineering in a front-office/capital markets environment., • Previous experience in implementing best practices for data engineering, including data governance, data quality, and data security., • Proficiency in data processing and analysis using Python and SQL., • Experience with data governance, data quality, and data security best practices., • Strong knowledge of market data and its applications., • Understanding of Generative AI concepts, along with hands-on experience in developing and deploying AI applications in real-world environments. Nice to Have • Experience with other data engineering tools and technologies., • Knowledge of Machine Learning / AI and data science concepts. Accountabilities • To build and maintain the systems that collect, store, process, and analyse data, such as data pipelines, data warehouses and data lakes to ensure that all data is accurate, accessible, and secure., • Build and maintenance of data architectures pipelines that enable the transfer and processing of durable, complete and consistent data., • Design and implementation of data warehoused and data lakes that manage the appropriate data volumes and velocity and adhere to the required security measures., • Development of processing and analysis algorithms fit for the intended data complexity and volumes., • Collaboration with data scientist to build and deploy machine learning models.

Graduate Trade Desk Engineer August 2026 Start Quant Capital is recruiting a Graduate Trading Technology Engineer for a leading proprietary trading firm based in London. The firm combines advanced technology, applied mathematics, and rigorous research to trade global financial markets. Technology is a core competitive advantage, with a focus on performance, automation, and reliability. You will be joining a collaborative environment where traders, researchers, and engineers work closely to solve complex problems in real time. This role blends technical development, analytical problem-solving, and live trading support. You will help ensure trading systems operate smoothly while contributing tools, automation, and process improvements that support quantitative strategies. Working with traders, quants, and engineering teams, you will monitor trading systems, investigate issues, assist with strategy rollouts, and streamline workflows through automation. The role provides early exposure to live trading environments and suits a graduate who enjoys numerical problem-solving, fast-paced decision-making, and building practical technical solutions. Key Responsibilities • Provide technical and functional support to traders and researchers, • Develop and maintain internal tools, automation, and trading-related applications, • Assist with testing, validation, and deployment of new releases and strategy changes, • Analyse system metrics and trading data to identify root causes of issues, • Collaborate with engineering teams to enhance system robustness and performance Requirements • STEM degree from a strong academic institution, • Strong numerical, logical, and analytical skills, • Excellent Excel and data-handling ability, • Interest and some experience in programming or technical problem solving, • Familiarity with Linux or technical systems is beneficial, • Ability to perform effectively in high-pressure, time-critical environments, • Strong interest in financial markets and trading technology Additional Information Location: London Start date: August 2026 Office-based role aligned to trading hours with early starts This position offers an exceptional entry point into a front-office trading environment, providing exposure to traders, quantitative research, and advanced trading systems.

Junior Quant Developer – Multi-Strategy Systematic Trading Location - London (or NYC) A leading investment firm specialising in multi-strategy systematic trading is seeking a Junior Quant Developer to join its front-office execution team in London. The firm integrates diverse strategies across asset classes to capitalise on market opportunities. As a Junior Quant Developer (0–4 years of experience), you will: • Develop and enhance high-performance trading systems., • Optimise execution algorithms for systematic trading., • Contribute to research and simulation frameworks. Key Requirements • Bachelor's degree in Computer Science or closely related field, • Interesting internship(s) within trading, • Proficiency in C++ or Python (the firm’s tech stack includes both)., • Strong problem-solving and analytical skills., • Ability to work in a fast-paced, collaborative environment. This opportunity offers a competitive compensation package and hybrid working model.

C++ Developer – Market Data Up to £75,000 + Benefits + Bonuses London (1-2 days in the office) Tech: C++ and Python An award winning FinTech organisation that allows trading firms to establish their best execution strategies are seeking a Software Engineer to work on the front line of their data acquisition system. This organisation are driving change within the investment management sector and are at a critical growth period. Whoever joins them at this point will shape the future of the company and has the ability to mould their own career path. They need a confident individual with strong communication skills and the experience to back up their decisions. • You should have: At least 3 years of experience writing production code in C++ and Python, • Linux , STL, Boost, • Ideally experience with large data volumes, • Experience with working with functioning, well-tested systems., • Experience of industry-standard development methodologies such as source code control, unit testing and continuous integration. This is an opportunity for a Software Engineer to join an award winning, cutting-edge FinTech where you will have the ability to take real ownership and make a genuine impact to the business. Contact Ciara Clarke for a confidential discussion on this role.

Software Engineer London / Hybrid | Perm Role £80,000 - £100,000 Harrington Starr has partnered with a fast-growing fintech that’s transforming how businesses manage foreign exchange and treasury operations. Their technology enables clients to access institutional-grade execution, automate manual workflows, and gain greater transparency across their financial processes. Handling billions in transactions each year, they continue to expand their product offering and deliver cutting-edge solutions that help clients manage risk more effectively. The Role This is an excellent opportunity for an experienced Software Engineer — ideally with a background in financial technology or FX — to join a high-performing engineering team within a scaling fintech. You’ll be instrumental in developing and enhancing the company’s core trading and treasury systems, building new features, improving performance, and driving integration across their technology stack. Key Responsibilities • Develop and maintain software across the full stack, • Contribute to architecture and design decisions, • Support, optimise, and maintain production code, • Research and integrate new technologies, • Foster a culture of engineering excellence and continuous improvement Key Requirements • 5+ years’ experience working with C#/.NET, • Experience developing front and middle office systems, • Strong SQL skills, • Experience with cloud-native solutions (Azure or AWS), • Knowledge of event-driven, microservices architectures, • Full SDLC experience — from design through delivery and support Key Benefits • Join a fast-scaling fintech building next-generation financial technology, • Work on complex, high-impact systems handling large-scale transactions, • Collaborative, innovative, and growth-oriented team culture, • Hybrid working model with flexibility and autonomy Please apply via the link provided or reach out to me directly to book in a confidential phone call -

Infrastructure Tester +Permanent opportunity +Hybrid working on site in London 2/3 days a week +£42,000 - £45,000 Skills: +Infrastructure Testing experience +AWS / Azure +API +Manual and automated testing experience We’re looking for a hands-on Tester who’s as comfortable checking infrastructure deployments and systems performance as they are validating user journeys in an app. You’ll work across a range of environments — from cloud setups and APIs to end-user interfaces — ensuring everything we ship is rock solid, performant, and secure. This isn’t a “click-around-and-tick-boxes” testing role. We need someone with strong technical grounding, curiosity, and the confidence to dive into environments beyond just the front end. Key Responsibilities • Execute and maintain test plans for infrastructure, backend services, and application layers., • Validate deployments, configuration changes, and environment stability across cloud and on-prem environments (AWS, Azure, GCP, CI/CD)., • Perform integration, regression, and performance testing across multiple platforms., • Collaborate with DevOps, Developers, and Product teams to identify and resolve issues early in the lifecycle., • Proven experience in software testing (manual and/or automated)., • Familiarity with infrastructure and deployment environments such as AWS, Azure, GCP, or on-premises., • Experience testing APIs, services, and integration points, not just front-end UI., • Strong analytical mindset and attention to detail — you spot issues others miss., • Competitive salary of £45,000, • Hybrid working model – flexibility to split time between home and our London office, • Supportive, collaborative culture with a focus on continuous learning, • Opportunities to shape testing approaches and tools in a modern, cloud-focused environment If you’re an inquisitive, technically-minded tester who thrives in diverse environments and enjoys getting into the details that make systems stable and scalable — we’d love to hear from you. If you'd like to discuss this role in more detail, please send your updated CV to and I will get in touch.

Quantitative Developer – Fixed Income (Risk) A leading global quantitative investment firm is seeking a Quantitative Developer to join its Fixed Income Risk function. The team builds the core risk and PnL infrastructure that supports multi-asset systematic and discretionary trading. This role sits at the intersection of engineering, quantitative research, and trading—ideal for someone who enjoys solving complex technical problems in a fast-paced front-office environment. Responsibilities • Build and enhance software solutions that power core risk and PnL systems., • Work closely with Fixed Income Risk Managers, Traders, and Quants to understand requirements and deliver high-impact tools., • Develop analytics and reporting frameworks to compute, aggregate, and visualize key risk measures., • Translate product-specific and trading requirements into scalable, automated software workflows., • Build systems to process and analyse large datasets across bonds, swaps, futures, options, and other FI derivatives., • Ensure robustness, transparency, and consistency across the firm’s Fixed Income risk infrastructure. What We’re Looking For • 5+ years of professional software development experience (strong Python preferred)., • Solid understanding of Fixed Income products—bonds, swaps, futures, options—and related risk measures., • Experience building or extending risk systems in a front-office or middle-office environment., • Ability to translate trading/risk requirements into clean technical specifications., • Familiarity with databases, APIs, microservices, and large-scale data processing., • Strong communication skills, able to partner effectively with both technical and trading teams., • Exposure to cloud environments and modern data engineering practices is a plus., • If you’re interested in contributing to a high-performance risk platform at a top-tier quantitative trading firm, feel free to reach out for more details.

Our client is a global, multi-billion AUM quantitative investment manager operating across all major liquid markets. With a strong track record and a research-driven culture, they continue to scale aggressively across trading and technology. They are now looking for a Software Engineer to join a high-impact derivatives team responsible for the accuracy, automation and reliability of all futures and options lifecycle processes across the firm. You will design, build and maintain scalable systems that manage expiries, contract rolls, corporate actions, coupon payments and other lifecycle events, ensuring full data integrity for front-office trading and research teams. Tech Stack: Python/C#, SQL, distributed systems, CI/CD pipelines The core function of this role is to ensure the availability, quality and automation of derivatives reference data and lifecycle workflows across global exchanges, directly supporting trading, operations and risk. The firm offers market-leading compensation and a collaborative engineering culture.

Software Engineer - B2B2C Health Scale-up | Up to £80,000 + Equity | London (Hybrid – 2 days in office) JavaScript | React | Node.js | TypeScript In Product is partnered with a profitable, growing health tech scale-up operating in the B2B2C space. The business is a trusted partner to leading organisations across the UK and Europe, while their direct-to-consumer products consistently receive top user reviews and are delivering measurable, life-changing behavioural outcomes. Following a period of stability and strong commercial performance, the company is now entering its next phase of growth — with a clear focus on deepening engagement with their core audience and continuing to build products grounded in research, evidence and real user needs. As a Software Engineer, you’ll join a small, experienced engineering team and work within a cross-functional squad alongside a Product Manager and Product Designer. This is a hands-on role where you’ll contribute across the stack, building clean, well-considered software that directly supports customer outcomes. You’ll work iteratively, shipping at pace while maintaining a high bar for quality, collaboration and maintainability. You won’t be operating in isolation - this is a supportive, well-structured environment with clear direction, strong product thinking and a shared sense of purpose. You’ll be a good fit if you… • Have commercial experience working as a Software Engineer in a product-led environment, • Are comfortable contributing across front-end and back-end JavaScript, • Enjoy working closely with Product and Design to understand problems before jumping to solutions, • Like building software that is user-facing, meaningful and measurable in its impact, • Are curious, thoughtful, and proactive about improving how things are built - without needing to be the loudest voice in the room In this role, you will… • Build and maintain features using React, Node.js and TypeScript, • Contribute to technical decisions with support from senior engineers and leaders, • Work collaboratively within a squad to turn research and insight into working software, • Improve existing code and patterns as the product and platform evolve, • Learn from others, share knowledge, and grow alongside a strong team What’s on offer • Up to £80,000 salary plus meaningful equity, • A financially stable business with a strong runway and clear growth plans, • Hybrid working: 2 days a week in the London office to support collaboration, • A culture that values learning, knowledge-sharing and sustainable pace, • The chance to work on products that genuinely improve health outcomes and support long-term behavioural change

A high-performing QIS team at a Tier-1 Bank in London is undergoing a exciting expansion. The team is revisiting its trading platform to better manage the growing demand of their QIS business. This is an ambitious project that aims to ensure the bank remains a leader in the QIS space. The hire will inherit a legacy platform and will be instrumental in shaping the future of the platform, alongside the established Hiring Manager and a dedicated team of developers and software engineers. The platform will be used by front-office quantitative researchers, structurers, and traders; the hire must have strong communication skills to best integrate their needs and priorities in the platform. This is a VP-level opportunity. Responsibilities • Contribute to the rebuild of a front-office QIS platform, integrating modern tooling and scalable architecture., • Develop robust, maintainable software with strong versioning, caching, and execution environments., • Collaborate with structurers, traders, and quant teams to deliver high-impact solutions., • Build tooling to support market data access and AI-enhanced user experiences. Requirements • 3-10 years of experience building production-grade software., • Proficiency in Python and at least one other language (e.g., Rust, Haskell, Julia, etc.)., • Experience building and maintaining long-term software projects., • Strong Computer Science fundamentals (algorithms, data structures, design principles)., • An advanced degree in Computer Science, or related degrees (optional, but preferred)., • Exposure to greenfield projects and experience scaling them up (optional, but preferred).

Senior C# Developer / Engineer (C# .Net Core) London / WFH to £85k Are you a skilled C# Developer looking to progress your career in a senior, hands-on role? You could be at a successful and scaling Retail FX Brokerage working on Greenfield systems. As a Senior C# Developer you'll be designing and developing high quality, maintainable, and reliable code for a real-time, low latency trading systems built mostly in C# and React deployed to Azure. You'll focus on C# .Net backend development within an AWS environment, but also with exposure across the full technology stack in a modern development environment with microservices. There are many technical challenges to explore, the initial project will be to build a KYC system from scratch. Location / WFH: You'll join colleagues in the London office Monday to Wednesday with flexibility to work from home Thursday and Friday. About you: • You have strong C# .Net Core backend development experience, • You have a good knowledge of microservices and Cloud (AWS or Azure) experience, ideally, you'll have some experience with Docker / Kubernetes, EKS, • You have a good understanding of CQRS and event driven architectures, • Ideally you will also have some front end development experience with JavaScript / TypeScript / React.js or Angular, • You have strong analytical and problem solving skills, • You're collaborative with excellent communication skills What's in it for you: As a Senior C# Developer / Engineer you will earn a competitive package: • Up to £85k salary, • Bonus, • Private Healthcare, • Pension, • 25 days holiday, • Hybrid working Apply now to find out more about this Senior C# Developer / Engineer (C# .Net Core) 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.

Fimador are working with a prestigious city based financial services firm on their quest to find a Python Engineer and help build out their data platform. As the company is still in the early stages of its data-engineering journey, this role offers the chance to influence architectural decisions and shape core systems from the ground up. You will work closely with front-office traders and operations teams to automate key workflows and deliver clean, reliable data that underpins both trading and operational processes. While data volumes are relatively modest, the business logic is complex and domain-heavy. Prior experience in securities lending is helpful but not essential. Responsibilities: • Develop and maintain Python-based data pipelines, with a primary focus on batch processing., • Integrate external vendor data sources (e.g., EquiLend Spire, Marex, Euroclear) and standardise inbound datasets., • Deliver production-ready data flows and reporting for trading and operations., • Implement data-quality controls, validation steps, and reconciliation processes., • Define engineering standards, development practices, and tooling for the broader data platform., • Partner with traders, operations, and finance teams to understand requirements and deliver effective data solutions. Requirements: • Strong Python engineering experience with an emphasis on data pipelines., • Hands-on experience with workflow orchestration tools., • Solid SQL and data modelling skills (Postgres preferred)., • Experience integrating with vendor APIs and file-based data feeds., • Capital-markets knowledge is a plus—especially in securities lending, delta-1, repo, or derivatives., • Excellent communication skills and confidence working across functional teams.

A leading systematic investment firm is expanding its Post-Trade Engineering function and is hiring a highly capable Full-Stack Software Engineer to build mission-critical reporting, investor-facing, and post-trade systems. This is an exceptional opportunity to work in a small, high-calibre engineering team where your work has immediate business impact and real ownership. This role is ideal for someone with strong engineering fundamentals, strong academics, and experience across modern front-end frameworks (Angular preferred), who wants to operate in a technically rigorous, data-centric environment. The Opportunity You will design and build systems that sit at the heart of the firm’s client, reporting, and operational workflows, including: • External investor portals and embedded client applications, • Internal tools supporting bespoke reporting and communications workflows, • Data-rich post-trade and operational applications used daily by Front Office, Client Solutions, Middle Office, and Fund Accounting, • End-to-end ownership: requirements, architecture, development, release, and production support If you enjoy working close to data, solving complex problems, and interacting directly with business users, this is a role where you will be deeply embedded in how the firm actually runs. Technical Environment You’ll work with a modern, well-architected stack: Backend: • C# / .NET / .NET Core, • Distributed systems, microservices, integration-heavy engineering, • SQL Server and data modelling Frontend: • Angular (highly preferred), • TypeScript, RxJS, modern UI patterns, • Strong interest in design and UI/UX a significant advantage Practices & Approach: • High-quality engineering and testing standards, • CI/CD, automated pipelines, • Clean architectural patterns, maintainability, correctness, • Close collaboration with stakeholders; engineers frequently shape product direction What They’re Looking For Core Requirements: • Strong software engineering fundamentals (data structures, OO design, distributed systems concepts), • Professional experience in C# / .NET, • Hands-on Angular experience OR strong React/TypeScript engineers willing to pick up Angular quickly, • Ability to understand data flows, validate correctness, and challenge assumptions, • Excellent communication skills and ability to work directly with business users, • End-to-end ownership mentality Academic Background: • A strong academic profile is highly desirable — Computer Science, Mathematics, Physics, or related quantitative disciplines from top universities, • Evidence of analytical thinking and problem-solving ability Why This Role Is Different • Small team, big impact — you will not be siloed; engineers directly shape systems used firm-wide, • High autonomy — you design, build, and own the entire lifecycle, • Breadth of exposure — client-facing portals, internal reporting, post-trade pipelines, operational systems, • Technical challenge — data complexity, correctness, and reliability matter deeply here, • Exceptional peer group — the team is formed of high-aptitude engineers with strong academic and professional backgrounds, • Real business partnership — daily interaction with Client Solutions, Middle Office, Fund Accounting, and senior stakeholders If you want to be at the intersection of engineering excellence, rich data systems, and meaningful product ownership, this is one of the strongest opportunities in London. If you are a strong C# or full-stack engineer with excellent fundamentals and a desire to work in a high-ownership, business-facing technology role, please get in touch.

React Developer / Front End Engineer (React v19 TypeScript) London / WFH to £95k Do you have expertise with React? You could be progressing your career at a Hedge Fund with complex work and substantial bonus earning potential. As a React Developer you'll join a globally distributed team to develop engaging and simple user interfaces across all internal business systems. You'll collaborate with UX and Product teams, actively participating in all stages of a project, through product design, development, implementation, testing and maintenance. Location / WFH: You'll join colleagues in the impressive Central London office with flexibility to work from home twice a week. About you: • You have strong Front End development skills with React (they're using v19) and TypeScript, • You are experienced with other web technologies such as HTML, CSS, Web APIs, • You have a strong knowledge of Computer Science fundamentals including OOP, Design Patterns, Data Structures, • You have experience of working in large, fast paced organisations, • You are collaborative with great communication skills, • You are degree educated, having achieved a 2.1 or above in Computer Science or similar technical discipline What's in it for you: As a React Developer / Front End Engineer you will receive a competitive package: • Salary to £95k, • Bonus, • Pension, • Self development and career progression opportunities Apply now to find out more about this React Developer / Front End Engineer (React v19 TypeScript) 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.

C# Developer / Software Engineer (C# .Net SQL API) London onsite to £90k Are you an ambitious and motivated C# Developer looking for an opportunity to progress your career, working on complex and interesting systems? You could joining a global sports trading firm, earning substantial bonuses. What's in it for you: • Salary to £90k, • Bonus paid every six months based on personal performance (10-25%), • Professional development, • Pension, • Health Insurance, • Gym membership, • Social events, free fruit, snacks, coffee etc. Your role: As a C# Developer within the trading engine team you'll collaborate to design and develop real-time trading systems, you'll often be collaborating with the strategy team on Greenfield projects which you'll take ownership of and will see the business impact of. There's a focus on backend and API development although you'll also have elements of front end work with JavaScript and React.js. Location: You'll be based in plush City office on a fulltime basis, Monday to Friday. About you: • You have strong C# .Net, ASP.Net development experience, • You have a strong knowledge of databases (SQL or Oracle), • You're comfortable with JavaScript / React, • You have a thorough knowledge of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms, • You are collaborative with excellent communication and stakeholder management skills, • You are degree educated in Computer Science or similar technical discipline Apply now to find out more about this C# Developer / Software Engineer (C# .Net SQL API) 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.

Exceptional opportunity for an experienced Full Stack Developer to join a groundbreaking AI-powered video technology company revolutionising how we capture and experience live events. The future of media is multi perspective, interactive, and AI-driven. London's tech sector is at the forefront of this transformation, where innovative start ups are redefining storytelling through cutting-edge video technology and artificial intelligence. This Senior Full Stack Developer position offers the rare chance to shape the technical architecture of a platform that's changing how millions experience concerts, festivals, sports, and live events worldwide. About the Company This award winning London based technology company is pioneering multi-view video innovation, backed by recognition from Nasdaq, the European Innovation Council, and Innovate UK. Their AI-powered platform enables audiences to explore events from multiple camera angles simultaneously, creating personalised viewing experiences that blend entertainment with intelligent media delivery. Operating at the intersection of video streaming, artificial intelligence, and cloud infrastructure, they're scaling globally across media, events, and brand activations. The Opportunity As Senior Full Stack Developer, you'll serve as a technical leader within the product and engineering team, working directly alongside the CTO, product owner, and founders. This hands-on leadership role combines active development with technical mentorship, architectural decision-making, and Agile process ownership. You'll be the primary technical escalation point whilst remaining deeply involved in building scalable, secure solutions that power next-generation video experiences. Based in London with hybrid flexibility, this role offers genuine influence over both technology choices and engineering culture. Here's what you'll be doing: • Lead full stack development across front-end and back-end systems, translating product vision into robust technical implementations, • Collaborate directly with the CTO to architect scalable solutions and define the technical roadmap supporting long-term growth, • Drive Agile ceremonies and sprint delivery, working closely with the product owner to prioritise features and maintain development velocity, • Act as the main technical escalation resource, troubleshooting complex issues whilst maintaining high code quality standards through reviews and mentorship, • Design and optimise APIs, microservices architectures, and cloud infrastructure for performance, security, and scalability, • Support CI/CD pipelines, deployment processes, and DevOps responsibilities including containerised environments and monitoring systems, • Mentor junior developers, introducing best practices and modern development workflows including AI-assisted coding tools, • Collaborate with AI and R&D teams to integrate emerging technologies in video processing, data systems, and cloud platforms, • 5+ years professional experience as a Full Stack Developer, preferably within start-up or scale-up environments where agility and ownership are essential, • Proven technical leadership experience, whether mentoring developers, leading projects, or driving architectural decisions, • Expert proficiency in JavaScript/TypeScript with modern frameworks such as React, Next.js, or Vue for building responsive front-end experiences, • Strong back-end capabilities with Node.js and Express, plus experience in at least one of C#, Java, or Python for diverse system requirements, • Demonstrated experience designing scalable RESTful APIs, microservices architectures, and both SQL and NoSQL database solutions, • Solid understanding of cyber security principles including secure coding practices, encryption, authentication, and access management, • Hands-on experience with cloud platforms (AWS, GCP, or Azure) and containerisation technologies including Docker and Kubernetes, • Familiarity with CI/CD tools, infrastructure as code, performance monitoring, and modern DevOps practices, • Strong communication skills enabling effective collaboration with technical teams and non-technical stakeholders alike You must have the right to work in the United Kingdom. Visa sponsorship may be available for exceptional candidates. Key perks and benefits: • Competitive salary package between £45,000-£55,000 reflecting your experience and the mid-level market rate for Full Stack Developer roles in London, • Share options available following successful completion of probationary period, giving you genuine ownership in the company's success, • Flexible hybrid working arrangements with options for remote work or London office collaboration based on your preferences, • Direct collaboration with C-level executives and exposure to strategic decision-making in a scaling technology business, • Professional development opportunities to expand your skills in AI, video technology, and cloud architecture The convergence of artificial intelligence and video technology represents one of the fastest-growing sectors in the UK tech industry. Full Stack Developer professionals with experience in cloud platforms, real-time data processing, and scalable architectures are in exceptional demand as companies race to deliver next-generation media experiences. This sector offers continuous learning opportunities, exposure to cutting-edge technologies, and the chance to work on products that millions of people will use. For developers seeking meaningful impact alongside technical challenge, AI-powered media platforms provide the perfect career accelerator in London's thriving tech ecosystem. This exciting Senior Full Stack Developer opportunity in London is brought to you by The Opportunity Hub UK – connecting ambitious tech professionals with career-defining roles in innovation-led companies.

Job Title: Solutions Engineer Location: London (Hybrid – 3 days per week) Salary: £60,000 + bonus and perks About Our Client Our client is a global network of life-saving technology companies, united by a mission to create a safer, cleaner, and healthier future. Their portfolio of over 40 businesses delivers innovative solutions addressing critical challenges in health, safety, and the environment. They are undertaking an ambitious digital transformation, investing in smart, connected, and data-driven technologies to modernise operations and accelerate innovation. With a presence across Europe, the US, and Asia Pacific, this is an opportunity to join a forward-thinking organisation recognised as one of the UK’s most admired companies. The Role We are seeking a Solutions Engineer to join the Digital Solutions team, working alongside the Senior Solutions Architect. This role blends hands-on software development with strategic advisory, supporting group-wide technology initiatives while helping individual businesses adopt best practices. You’ll design and prototype solutions across cloud, AI, VR/AR, Edge AI, and emerging technologies. Your work will span both operational and customer-facing projects, giving you the chance to apply cutting-edge technology to real-world challenges and make a measurable impact. Key Responsibilities • Collaborate with the Senior Solutions Architect to design scalable, secure, and high-value technical solutions., • Lead and contribute to group-wide initiatives, including the rollout of in-house Generative AI solutions., • Design and build blueprints, proof-of-concepts, and prototypes using cloud services, AI, VR/AR, and Edge AI., • Provide hands-on guidance to operating companies on software development best practices, technology stack selection, DevOps, and CI/CD implementation., • Develop reusable assets such as reference architectures, templates, and playbooks to accelerate adoption and delivery., • Translate business requirements into technical solutions and deliver within agile environments., • Explore emerging technologies, providing demonstrations and guidance to support adoption across the group. Required Experience & Skills • 5+ years of cloud-native development experience, preferably Azure (AWS a plus)., • 5+ years of software engineering experience, mainly in C# and/or Python., • Strong knowledge of cloud services (Azure App Services, Functions, AI Services)., • Proficiency in REST APIs, microservices, and event-driven architectures., • Experience with Git-based version control (GitHub/Azure DevOps) and CI/CD tools (Azure DevOps, GitHub Actions, Jenkins)., • Solid understanding of solution architecture principles and software testing practices., • Experience delivering customer-facing products and supporting the full development lifecycle., • Excellent communication, stakeholder engagement, and advisory skills. Desirable • Experience with Generative AI, LLMs, RAG, LangChain, or Semantic Kernel., • Familiarity with Microsoft Power Platform., • Front-end experience with React, Angular, Vue.js, Flutter, or Progressive Web Apps., • Exposure to edge computing, VR/AR, or robotics. What You’ll Bring • Curiosity and passion for emerging technology., • Strong coding and problem-solving skills combined with a strategic, advisory mindset., • Confidence navigating complex organisations and driving adoption of best practices., • Pragmatic, entrepreneurial approach with a future-focused mindset. Location & Working Pattern This is a full-time, permanent role based in London, with three days per week in the office and occasional travel to other UK sites. Hybrid working arrangements balance collaboration, travel, and home-based work.

Who we are Zedsen is a cutting-edge health technology startup based in London, focused on transforming breast cancer detection through our innovative, non-invasive sensor technology. Our proprietary sensors and advanced data algorithms enable us to detect subtle changes in breast tissue, offering a safer, accessible, and cost-effective alternative to traditional screening methods. Our mission is to provide early and accurate breast cancer screening solutions, accessible globally, to improve patient outcomes, reduce healthcare costs, and enhance the overall quality of care. By developing scalable technology that can be widely implemented, we aim to make a measurable impact on the way breast cancer is detected and managed worldwide. What You’ll Do Building breakthrough sensing technologies takes tight coordination between hardware, signal processing, and algorithms—and that’s where you come in. You’ll be at the heart of our electronics development, leading verification and validation of current designs and prototypes, turning real-world performance data into insight, and pushing the next generation of improvements across every layer of the system (from analogue sensor arrays and PCBs to filtering and ASICs). As a senior member of the team, you’ll shape how we design, test, and evolve our hardware systems. You’ll model great engineering practices, ensure compliance with medical standards (IEC 60601, ISO 14971, ISO 13485), and help foster a culture of open collaboration and continuous learning. You’ll mentor engineers, share knowledge generously, and help turn bold ideas into robust, life-changing, and inclusive solutions. Core Responsibilities • Lead design and development of analogue and mixed-signal electronic systems for medical sensing applications, • Own schematic design, component selection, and PCB layout (Altium or equivalent), • Develop and maintain verification and validation plans for hardware subsystems, • Analyse and improve sensor performance, noise characteristics, and signal quality, • Collaborate closely with firmware, mechanical, and algorithm teams to ensure seamless system performance, • Drive design reviews, risk assessments, and documentation in line with ISO 13485 and ISO 14971, • Engage with test houses and certification partners to ensure compliance with IEC 60601 and other relevant standards Essential Requirements • 10–15 years’ experience in electronic hardware design, with at least 5 years in medical or other regulated systems., • Deep understanding of analogue and mixed-signal design, especially for sensing, low-noise front ends, and signal integrity., • Strong command of EMC design and mitigation techniques., • Experience taking hardware through IEC 60601 compliance and verification., • Skilled in schematic capture and PCB layout review (Altium or equivalent)., • Familiarity with risk management (ISO 14971) and design control processes., • Working knowledge of embedded systems, allowing effective collaboration with firmware. Desirable Criteria • Experience in capacitive or impedance sensing and ow-power wearable electronics, • Familiarity with FPGA development and high-speed digital signalling, • Comfort working in early-stage R&D and rapid prototyping environments, • Strong communication and mentoring skills, • Enthusiasm to produce high quality work – we are producing medical, • devices! We know that no candidate meets every single requirement. If you’re excited about the role and have strong experience in most of these areas, we’d love to hear from you! Benefits · Private Medical and Dental Cover · Life and Health Insurance · Flexible working environment – 3 days / week required in the office: flexibility to work remotely at company discretion. · Free lunch when working onsite · 25 days annual leave · 5% Employer Pension Contribution · Share Options · Bonus scheme (subject to meeting company milestones and company policy) · Opportunities for growth: learn from a supportive team, attend workshops and short courses which align with delivering company goals (subject to managerial approval). How We Work We’re a close-knit team of scientists and engineers who enjoy taking on complex problems and seeing them through. The hardware group is small and focused where everyone has an equal opportunity to shape both the technology and the culture we work in. We hold ourselves accountable, support one another, and value clear, honest communication over unnecessary process. Growth here comes from doing meaningful work, learning together, and sharing knowledge openly. If you want to build technology that matters alongside people who are passionate about what they do, you’ll fit right in.

We are partnered with a leading fixed income hedge fund in London seeking a talented C# Developer to join their front-office technology team. The fund has a strong and consistent performance track record and has invested heavily in its quant and tech capabilities as part of a wider growth plan. You’ll work closely with the quant team as well as traders and other front office stakeholders to build and enhance core trading systems, research tooling, and data-driven applications. Projects span proprietary trading system development, front-office tools, and the application of machine learning across the investment process. The environment is fast-paced, collaborative, and a highly technical one where code quality and low latent systems are a top priority. This team has a history of developing people’s careers and offers a broad and exciting range of new and existing projects for hires to get stuck into. These will consist of both back-end and front-end projects with 1 week sprints and release cycles, PR review processes and continuous development to master. This is a team we have worked with for a number of years and have a close, direct working relationship with the CTO. We have placed in the team multiple times so are able to go into detail regarding set up of the team and role The team primarily uses C# for core systems and Python within quant and data teams. C# and .Net experience and knowledge are essential for this role, but the fund will consider exceptional candidates who work with other likeminded OOP languages (C++, Java, Go). When it comes to financial markets experience, there is a particular interest in Fixed Income and Rates, but these are not essential, they will be open to other asset classes. If you are working in a front office environment or experienced with business critical and very low latent systems, then this role could be a good fit. The fund looks for low-ego, high-performing self-starters who enjoy ownership, teamwork, and delivering pragmatic, commercial solutions. The CTO is particularly interested in candidates that are passionate about technology and want to grow and learn within a fast paced and highly performant environment. You’ll have direct exposure to PMs, quants, and the CTO, and will contribute across design, architecture, and production support. Requirements: • Strong academic background in Computer Science or related field, • Excellent programming skills in C# and .Net, • Experience working with large data sets, • 1–5 years’ experience in a relevant software engineering role, • Interest in finance; fixed income or systematic experience a plus, • Positive, pragmatic, and collaborative mindset This is a rare opportunity to join a high-performing, technology-driven hedge fund with a genuinely collegiate culture. Due to demand, this role is advertised anonymously. If preferred, submit a blank application and we will contact you before requesting a CV. We can only respond to highly qualified candidates.

Full Stack Engineer / Developer (Python TypeScript) London / WFH to £120k Are you a technologist with start-up experience looking for your next opportunity? You could be progressing your career at a tech start-up that is producing an AI native data pipelining platform. As a Full Stack Engineer within a small team, you will build and implement new features across the full tech stack, with a focus on backend Python and TypeScript and some React work on the front end. You'll take ownership and work across the full development lifecycle, collaborating with customers to build and scale the product. The work is interesting and complex, you'll be able to contribute to the product vision and strategy playing a pivotal role in the company's success. Location / WFH: You'll join colleagues in the London office (close to Waterloo) with flexibility to work from home twice a week. About you: • You have strong backend Python coding skills, including API development, • You have full stack experience, including TypeScript and React (or another framework), • You have a good understanding of system design and scalability, • You're familiar with other technology in the stack including: AWS, Terraform, Docker, PostgreSQL, DynamoDB, CI/CD, GitHub actions, Blacksmith runners, • You're collaborative and pragmatic with great communication skills, keen to input into technical discussion and decision making What's in it for you: As a Full Stack Engineer you will receive a competitive package: • Salary to £120k, • Equity, • Impactful role with excellent career progression as the company scales, • Hybrid working, • Pension Apply now to find out more about this Full Stack Engineer / Developer (Python TypeScript) 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.

About the Role Join a mission-critical team within our firm’s cutting-edge platform engineering function, supporting platform for front-office developers (quants and strategists). This is a unique opportunity to remain hands-on in engineering while also leading a focused, high-impact team. You’ll be at the forefront of data and cloud-native engineering, working with modern technologies across AWS, On-premise kubernetes, Python, and data pipelines, while engaging directly with key internal platforms and front-office business developers. If you are passionate about solving hard technical problems, staying current with trends like AI Engineering, and want to make a difference in a globally respected financial institution, this role is for you. The successful Senior AWS Data Engineer candidate will have the chance to make a significant impact in designing the platform and working on cutting-edge technologies like Databricks and Snowflake in the heart of a leading global Investment Banks’ front-office. This is a rare greenfield role that offers the opportunity to solve the ultimate data pipeline challenge faced by all banks, working closely with various businesses and gaining an overview of many different sectors. What We’re Looking For • 10 + years, hands-on experience in AWS data engineering technologies, including Glue, PySpark, Athena, Iceberg, Databricks, Lake Formation, and other standard data engineering tools., • Strong experience engineering in a front-office/capital markets environment., • Previous experience in implementing best practices for data engineering, including data governance, data quality, and data security., • Proficiency in data processing and analysis using Python and SQL., • Experience with data governance, data quality, and data security best practices., • Strong knowledge of market data and its applications., • Understanding of Generative AI concepts, along with hands-on experience in developing and deploying AI applications in real-world environments. Leadership Responsibilities • To contribute or set strategy, drive requirements and make recommendations for change. Plan resources, budgets, and policies; manage and maintain policies/ processes; deliver continuous improvements and escalate breaches of policies/procedures., • Lead a number of specialists to influence the operations of a department, in alignment with strategic as well as tactical priorities, while balancing short and long term goals and ensuring that budgets and schedules meet corporate requirements., • Demonstrate a clear set of leadership behaviours to create an environment for colleagues to thrive and deliver to a consistently excellent standard., • Advise key stakeholders, including functional leadership teams and senior management on functional and cross functional areas of impact and alignment., • Manage and mitigate risks through assessment, in support of the control and governance agenda., • Demonstrate comprehensive understanding of the organisation functions to contribute to achieving the goals of the business. Nice to Have • Experience with other data engineering tools and technologies., • Knowledge of Machine Learning / AI and data science concepts. Accountabilities • To build and maintain the systems that collect, store, process, and analyse data, such as data pipelines, data warehouses and data lakes to ensure that all data is accurate, accessible, and secure., • Build and maintenance of data architectures pipelines that enable the transfer and processing of durable, complete and consistent data., • Design and implementation of data warehoused and data lakes that manage the appropriate data volumes and velocity and adhere to the required security measures., • Development of processing and analysis algorithms fit for the intended data complexity and volumes., • Collaboration with data scientist to build and deploy machine learning models.

About the Role Join a pioneering team that’s redefining how AI and cloud-native platforms power front-office trading. We’re hiring a hands-on engineering leader to shape the future of our Dart platform, a critical infrastructure that supports Quantitative and Strat developers in building next-generation trading solutions. This is not just another engineering role. You’ll work side-by-side with front-office traders and quants, creating bespoke GenAI tools that directly impact trading performance. If you’re passionate about building something unique, ahead of the curve, and never done before, this is your chance to make it happen. What You’ll Do You’ll lead and innovate across both cloud and on-prem environments, scaling platform capabilities and driving AI adoption: • Architect and develop cutting-edge platform services for AI-driven trading., • Potentially lead a small team of engineers, driving technical excellence while staying hands-on., • Collaborate with internal infra/platform teams to align capabilities and avoid duplication., • Design and implement secure, cost-aware, scalable systems using AWS services and Kubernetes., • Mentor junior engineers and set best practices for AI/ML infrastructure., • Influence across organisational boundaries and champion modern engineering trends., • Stay ahead of the curve in Generative AI, ML infrastructure, and cloud-native tooling. Tech Stack • Programming: Python (Java familiarity is a plus)., • AWS: S3, Kinesis, Glue, Lambda, Step Functions, SageMaker, and more., • On-Prem: Managed Kubernetes Platform and Hadoop ecosystem. Why This Role is Different • Direct Impact: Build AI tools that traders and quants use daily to optimise strategies., • Creative Freedom: Open collaboration and the chance to bring your ideas to life., • Visibility: Be a big player in a small, high-impact team with exposure across the organisation. What We’re Looking For • 10 + years of extensive experience in software/data engineering, ideally in platform or infra roles., • Strong programming skills in Python; passion for code quality and testing., • Demonstrable experience applying GenAI concepts to front-office/capital markets environments., • Deep experience with AWS services (S3, Glue, Kinesis, Lambda, ECS, IAM, KMS, API Gateway, Step Functions, MSK, CloudFormation)., • Passion for being hands-on while enabling and growing a small engineering team. Nice to Have • Experience with on-prem Hadoop and Kubernetes., • Familiarity with AWS cost management and optimisation tools., • Knowledge of front-office developer workflows in financial services.

🚀 Job Opportunity: Senior C# Quantitative Developer | Capital Markets Technology Location: London Type: Full-time / Contract Rate: £800 p/d (Outside IR35) Client: Leading Global Investment Bank Hybrid: 1 day per week in the office Are you ready to be at the forefront of technology and finance? Our client, a top-tier investment bank, is looking for a Senior C# Quantitative Developer to join their high-impact Capital Markets Technology team in London. This is a unique opportunity to bridge the worlds of quantitative analysis and software engineering—delivering cutting-edge solutions to drive pricing, risk management, and liquidity strategies in real-time trading environments. 🔍 About the Role As a Senior Quantitative Developer, you’ll collaborate closely with quantitative analysts, traders, and fellow technologists to develop and optimize core components of the bank’s pricing and risk infrastructure. You'll be responsible for translating complex financial models into high-performance, production-ready systems—driving both innovation and stability in capital markets technology. 💼 Key Responsibilities 1. Development & Optimization • Implement decomposition logic for structured products including funding, fees, and charges., • Integrate and refine pricing and risk models for real-time trading environments., • Develop rules-based liquidity management for quoted underlyings., • Enhance back testing, data analytics, and regression infrastructure., • Build and maintain low-latency, high-throughput systems. 2. Cross-functional Collaboration • Work side-by-side with quants and traders to productionize mathematical algorithms., • Partner with infrastructure and DevOps teams to scale and deploy applications effectively. 3. System Monitoring & Support • Ensure reliability and performance of live systems through proactive monitoring., • Provide occasional on-call support to maintain system uptime and stability. 🎓 Qualifications Required: • Degree in Computer Science, Engineering, Mathematics, Physics, or similar., • 10+ years of hands-on development experience in C# / .NET., • Solid grasp of financial instruments (equities, derivatives, fixed income, FX, commodities)., • Proven experience building scalable, multi-threaded systems., • Proficiency with SQL Server, MongoDB, and Git., • Background in front-office environments within an investment bank, hedge fund, or fintech firm. Preferred: • MSc or PhD in a quantitative discipline., • Experience with structured products, particularly structured notes. 🌟 What We’re Looking For • A critical thinker with outstanding analytical and problem-solving abilities., • A team player who thrives in high-pressure, dynamic environments., • Excellent communicator with a proactive, collaborative mindset., • A self-starter who takes ownership and consistently drives results. This is a highly visible role with significant impact, offering the chance to work on complex financial instruments and contribute directly to the bank’s trading strategies and platform evolution. If you're passionate about finance and engineering and want to work alongside some of the best minds in the industry—we want to hear from you. Apply now to learn more.

Job Title: Software Development Team Lead Location: London, UK Style: Hybrid, 2 days per week in the Stratford office Level: Leadership Contract: 6 months We are seeking a highly skilled and versatile Software Development Team Lead to lead backend, full stack and front end engineers in our expanding innovation development team, and to drive development of an innovative new product that makes use of machine learning, natural language processing, speech recognition and text to speech synthesis to create dynamic, adaptive interactive scenarios for English learning and assessment. Minimum requirements: • 5+ years of experience with Python (essential) and other technologies including AWS, Node.js, Typescript, SQL, CI/CD, DevOps (Terraform, Github Actions, Docker)., • Solid track record of leadership level experience, including guiding and mentoring members of the technical team., • Experience of working in an agile setting with the delivery of both B2C and B2B software solutions and websites with 5k+ daily users., • Excellent problem-solving skills, diverse thinking and creative sense in navigating ambiguity., • Excellent communication skills, fostering collaboration among cross-functional teams., • Deep sense of ownership and accountability for the success of the project., • Proficiency in lean / agile software development best practices.

Senior Product Engineer (Fullstack Software Engineer) London, Old Street, Onsite, AI Agents, Skippr AI (direct, no agency please) ⭐ About the role We’re looking for a Product Engineer to join our small but high-calibre team in Old St. We’re a team that’s 100% AI-native — not just building AI agents, but using them daily to supercharge our own workflows. Our mission is to reinvent product development through specialised AI agents. We started with product design agents, and now we’re building something entirely new and multimodal — we’re pushing the limits of what agents can do. Skippr is backed by top VCs, like Bessemer (Anthropic, Perplexity, Shopify), and executives from Fiverr, Meta, Google, Lyft and more. 🏗️ What you’ll do • Modern stack: Build scalable systems using FastAPI, React, Supabase or similar modern technologies — we care more about your ability to ship quality code than specific stack experience. Own everything from database design to AI agent orchestration., • Agent Experience (AX): Shape intuitive interfaces for human–agent collaboration. Rapidly prototype and iterate with engineers and designers to discover the right interaction models for working productively with agents., • LLM Agentic Workflows: Build a system of agents — tool use, memory, retries, context updates, feedback loops, and MCP integration., • System Design & Technical Strategy: Partner directly with founders to define the technical path that balances moving fast now with scaling to many customers and dev tools later. ✅ This role is for you if • You’re a full-stack 0→1 builder who has shipped to production — ideally rapidly shipping apps and building scalable systems in containerised environments., • You’ve been a founder or founding engineer. You know what it means to build something from scratch that real people actually use or pay for., • You thrive in ambiguity. You can juggle shifting priorities, decide when to let small fires burn, and when to dive in., • You have grit. You’re used to hard tradeoffs and pushing through the messy middle to get to something great. ❌ This role is not for you if • You want remote or hybrid work. We believe early-stage startups win by moving fast in the same room — this is an in-office role, 5 days a week in our Old St office., • You dislike ambiguity. Priorities shift, experiments fail, and new opportunities appear — if you prefer stable roadmaps, this isn’t the place., • You don’t enjoy 0→1 environments. Early-stage means wearing multiple hats, solving unscoped problems, and building with imperfect information. 🤝 What we offer • Competitive salary + meaningful equity (EMI options): Everyone here has skin in the game and upside if we win., • Comprehensive benefits: Pension, private health insurance, and 25 days holiday plus bank holidays., • Real influence on architecture: You’ll make foundational decisions on our platform design that will shape how future engineers build on top of it., • Exposure across the startup stack: Beyond code — sit in on user interviews, shape product strategy, and get a front-row seat to how startups actually grow., • A team that’s genuinely excited: We’re obsessive about the problem, love what we’re building, and keep the culture sharp but supportive.

Role: Staff Front End Engineer Location: Hybrid - 2-3 days in London Office Compensation: Up to £170,000 + equity We’re working with a frontier AI-driven biology lab on a mission to redefine how science is done. Their research and engineering teams are building next-generation tools that help scientists visualise, understand, and design biology at an unprecedented scale. As a Front End Engineer, you’ll craft the visual layer of this transformation, designing interfaces that turn vast, complex biological data into intuitive, beautiful experiences. Your work will sit at the intersection of AI, design, and discovery, directly accelerating breakthroughs in life sciences. What you’ll do • Build responsive, high-performance web UIs that make complex scientific data explorable and engaging., • Lead frontend architecture, shaping reusable component libraries and design systems., • Collaborate with machine learning researchers, engineers, and biologists to translate cutting-edge science into intuitive digital tools., • Push the limits of frontend performance, accessibility, and interactivity., • Write and maintain comprehensive unit and end-to-end tests to ensure reliability at scale. You should have • Strong experience with TypeScript/JavaScript and modern frameworks (React or similar)., • A proven track record of delivering polished, performant, and elegant user interfaces., • Deep appreciation for UI/UX craftsmanship and accessibility., • Familiarity with HTTP, REST APIs, websockets, and secure frontend patterns., • A creative streak — you think visually and love turning complexity into clarity. Nice-to-haves • Experience with 3D or WebGL rendering, or other data-rich visualisations., • Experience building or maintaining design systems and component libraries. If you’re excited by the idea of using world-class engineering to accelerate world-changing science, building interfaces that literally help unlock the secrets of life then we’d love to hear from you.

If you need support in completing the application or if you require a different format of this document, please get in touch with at or call TCS London Office number 02031552100 / +44 204 520 2575 with the subject line: “Application Support Request”. Job Title: AI Intern Mode of Working: Are you passionate about building cutting-edge AI solutions and driving innovation in enterprise environments? Join us as an AI Intern Careers at TCS: It means more TCS is a purpose-led transformation company, built on belief. We do not just help businesses to transform through technology. We support them in making a meaningful difference to the people and communities they serve - our clients include some of the biggest brands in the UK and worldwide. For you, it means more to make an impact that matters, through challenging projects which demand ambitious innovation and thought leadership. • Drive innovation at scale by designing and deploying advanced AI solutions for enterprise environments., • Build intelligent systems that deliver impactful, data-driven experiences and enhance business performance., • Shape the future of AI by developing strategies that balance scalability, cutting-edge technology, and sustainability. The Role As an AI Intern, you will play a pivotal role in designing, building, and deploying AI systems within complex enterprise environments. This position requires a strong foundation in full-stack development, combined with hands-on experience in implementing AI/ML solutions. You will leverage your deep understanding of AI technologies, software engineering principles, and cloud platforms to deliver scalable, innovative solutions that drive business impact. Your responsibilities: • Design, develop, and maintain end-to-end AI solutions, including front-end interfaces, back-end services, and data pipelines., • Implement and optimize AI models, ensuring they are scalable, maintainable, and production ready., • Work on GenAI, Agentic AI, and classic ML solutions., • Integrate AI solutions with existing enterprise systems and ensure seamless operation within the client's technology stack., • Work closely with cross-functional teams, including data scientists, software engineers, and business stakeholders, to identify opportunities and deliver robust AI solutions., • Provide technical guidance and mentorship to junior engineers. Lead the implementation of best practices in AI/ML development and deployment., • Stay updated with the latest advancements in AI/ML technologies and contribute to the development of innovative solutions. Your Profile Essential skills/knowledge/experience: • Proficiency in Python and extensive experience with AI/ML/NLP libraries (e.g., Hugging Face Transformers, spaCy, NLTK)., • Experience with state-of-the-art LLMs (e.g., GPT series, Llama series, Mistral, Claude), including prompt engineering, fine-tuning, and evaluation., • Hands-on experience with core GenAI frameworks (e.g., LangChain, LlamaIndex) and Agentic AI frameworks (e.g., AutoGen, CrewAI, LangGraph)., • Proficiency in MLOps/LLMOps tools (MLflow, Kubeflow, Docker, Kubernetes)., • Strong working knowledge and practical deployment experience on major cloud platforms (AWS, Azure, GCP), including their AI/ML services., • Strong foundation in software engineering principles for building scalable, maintainable, and production-ready AI systems., • Experience in designing and implementing enterprise-grade AI solutions, including RAG-based solutions with LLMs and vector databases (e.g., Pinecone, Weaviate, FAISS)., • Bachelor's or Master's degree in Computer Science, Engineering, or a related field., • Proven experience in full stack development and AI/ML system implementation within enterprise environments., • Strong grasp of advanced techniques such as complex task decomposition for agents, reasoning engines, knowledge graphs, and autonomous agent design., • Excellent communication and stakeholder management skills., • Experience working on client proposals and leading technical presentations. Rewards & Benefits TCS is consistently voted a Top Employer in the UK and globally. Our competitive salary packages feature pension, health care, life assurance, laptop, phone, access to extensive training resources and discounts within the larger Tata network. We offer health & wellness initiatives and sports events; we are the proud sponsor of the London Marathon. Diversity, Inclusion and Wellbeing Tata Consultancy Services UK&I is committed to meeting the accessibility needs of all individuals in accordance with the UK Equality Act 2010 and the UK Human Rights Act 1998. We welcome and embrace diversity in race, nationality, ethnicity, disability, neurodiversity, gender identity, age, physical ability, gender reassignment, sexual orientation. We are a disability inclusive employer and encourage disabled people to apply for this role. As a Disability Confident Employer, we offer an interview to applicants with disabilities or long-term conditions who meet the minimum criteria for the role. Please email us at if you would like to opt in. If you are an applicant who needs any adjustments to the application process or interview, please contact us at with the subject line: “Adjustment Request” or call TCS London Office 02031552100 / +44 204 520 2575 to request an adjustment. We welcome requests prior to you completing the application and at any stage of the recruitment process.

The Client Our client is a highly regarded discretionary investment manager with a strong focus on data‑driven decision making. They operate with a small, agile structure and are recognised for their commitment to excellence in trading and technology. Their in‑house technology function spans IT infrastructure, software development, and quantitative analysis, supporting all aspects of market data processing and trading activity. The environment is fast‑paced, collaborative, and highly technical, where code quality, performance, and low‑latency systems are top priorities. Engineers work across domains, contribute to architectural discussions, and help shape scalable, robust systems. We have partnered with this team for several years and have a close, direct working relationship with the CTO. We have successfully placed multiple individuals into the group and can provide detailed insight into the team structure, culture, and expectations. The Role The client is embarking on a major initiative to unify and expand their core systems, bringing more of this capability in‑house. As Head of Core Platform, you will lead this transformation—designing, planning, and implementing the evolution of the core technology stack to create a strong foundation for future growth. This is a hands‑on leadership role. You will develop and consolidate systems, write software, guide a team of developers, and take ownership of several critical platforms. This includes an in‑house C# PnL and Risk system that performs real‑time portfolio valuation, alongside other components that will be integrated into a cohesive, modernised core platform. You will work closely with senior stakeholders including the CTO, COO, Head of Operations, and Project Management. Candidate Profile Domain Expertise • Strong background in fixed‑income trading systems, • Knowledge across front‑, middle‑, and back‑office workflows, • Demonstrable expertise in:, • Repo trading and lifecycle management, • Post‑trade operations, clearance, and settlement, • Margin and collateral management, • Experience building systems that capture bond and swap (interest rate and FX) cashflow events, • Understanding of accrual (trade date) and realised (settlement date) accounting reconciliations, • Particular interest in candidates with Fixed Income and Rates experience Technical Skills • Strong computer science fundamentals, • Hands‑on development experience in:, • C# and .NET (essential for this role), • Python within quant or data environments, • The client will also consider exceptional engineers from other OOP backgrounds such as C++, Java, or Go, • Familiarity with UI technologies such as WinForms, WPF, Blazor Hybrid, and Blazor Web Leadership & Approach • Experience working in front‑office or trading‑technology environments, or on business‑critical systems, • Ability to lead by doing—hands‑on while guiding a team, • Pragmatic, delivery‑focused mindset, • Commitment to high‑quality engineering practices and low‑latency, high‑performance systems, • Low‑ego, high‑performing self‑starter who values ownership, teamwork, and delivering commercial, pragmatic solutions Why Apply This is a rare opportunity to take ownership of a mission‑critical transformation within a high‑performing investment manager. You’ll shape the architecture, engineering standards, and long‑term technical direction of the firm, working in a collegiate environment where ideas matter and technical excellence is valued. As a long‑standing recruitment partner to this team, we can provide deep insight into the role, expectations, and culture, ensuring you have a clear and accurate understanding of the opportunity.

This will include the implementation and enhancements of an enterprise OMS platform (Charles River/Aladdin).