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The Setup: A high-growth agile unit within the global STARLIMS ecosystem. STARLIMS provides leading Laboratory Information Management System (LIMS) solutions that have served customers around the world for over 30 years. Our solution suite helps labs: • Improve the reliability of sampling and testing, • Manage complex testing workflows and analytical methods, • Support compliance with global regulatory requirements and industry standards The Role: Architect, Mentor, & AI Pioneer We are looking for a Senior Architect/Lead Developer to take complete ownership of the Labstep platform. You will be the primary decision-maker for our architecture, moving us from a robust data tool to an AI-augmented powerhouse. The Opportunity: The Best of Both Worlds Labstep was founded to build user-centric software that accelerates scientific discovery. Recently, we joined forces with STARLIMS, a global leader in Informatics. What this means for you: You get the high-impact, fast-moving "Day 1" culture of a startup where you own the entire tech stack, backed by the job security, comprehensive healthcare, and professional benefits of a major global organization. • Complete Technical Autonomy: You own the AWS-based stack (Pulumi, ECS, Fargate). You decide the "how" and the "when" for every major architectural shift., • Lead the AI Roadmap: You will architect our AI Search and Natural Language Agent. We want a pragmatic engineer who can lead the implementation of LLMs and Vector Databases to help scientists automate complex tasks., • Mentorship & Team Lead: You will work closely with a Technical Product Manager and mentor a Junior Developer, setting the standard for engineering excellence and clean code., • DevOps Excellence: Managing our infrastructure via Pulumi to ensure the high-availability and security standards required by global research institutions. The Tech Stack: We believe in using the right tool for the job. You will manage the current foundation while evolving it: • Current Core: PHP 8 / Symfony / Doctrine API, React / TypeScript Frontend., • Cloud/Infra: AWS (Fargate, ECS, Lambda), Pulumi (IaC), MySQL., • The Frontier: This is your domain. You will lead our transition into Vector Search, Hybrid Search Engines, and AI Orchestration. Who You Are: • A Technical Owner: You’ve scaled production web apps and are comfortable across the full stack and infrastructure., • Pragmatic AI Enthusiast: You don't need a background in AI, but you are excited to build production-ready AI features (RAG, Agents) that solve real problems., • Empathetic Mentor: You enjoy leveling up junior talent and collaborating deeply with product peers., • Mission-Driven: You want your work to help scientists cure diseases and solve global challenges. Skills Required: • 5+ years of leading development teams, • 5+ years of leading architect, • 5+ Years of AWS DevOps experience, • Experience coding with the following languages/technical solutions - PHP 8 / Symfony / Doctrine API, React / TypeScript Frontend Why Labstep & STARLIMS? • Impact: Your code directly supports the world’s leading scientists and researchers., • Stability & Perks: Enjoy the comprehensive benefits package of a large corporation—including private healthcare, pension, and enhanced job security—without the corporate red tape., • The "Startup" Feel: We remain a small, agile team that moves fast, experiments often, and values your voice., • Work-Life Balance: Remote-first flexibility with meaningful monthly in-person collaboration in London. STARLIMS is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, creed, religion, color, national or ethnic origin, citizenship, sex, sexual orientation, gender identity and expression, genetic information, veteran status, age or disability status.

📍 Remote | Full-Time 👋 About Us Medify is a mission-driven EdTech company widening access to medicine and healthcare careers. Our platform supports thousands of learners preparing for high-stakes admissions exams, and our engineering team plays a critical role in delivering reliable, scalable, and high-quality learning experiences. Medify Engineering is a team of ten engineers across two teams, and everyone is hands on, including engineering management and the CTO, which helps us keep our processes practical and engineer-friendly. We work to minimise meetings: engineers typically have a 15-minute daily standup for in-progress updates and quick alignment with Product, plus (per two-week sprint) a one-hour refinement with Product, a one-hour planning session with engineering, and a 30-minute company-wide demo. Operational work like deployments, bug triage, and on-call is handled on a rotation, with each person covering one week roughly every two months. 🎯 The Role As a Senior Full Stack Engineer at Medify, you will play a pivotal role in shaping our platform and technical direction. Working closely with the CTO and fellow engineers, you’ll be involved across the full software development lifecycle - from ideation and design through to development, testing, and deployment. This is a fully remote, home-based role, suited to someone who enjoys ownership, collaboration and solving complex problems in a fast-moving environment. Tech stack: Ruby on Rails (backend), frontend transitioning from Ember to React, Postgres database, hosted on AWS. 🧩 Key Responsibilities • Design and develop high-quality, scalable, and efficient software solutions using modern best practices, • Collaborate closely with Product and Design teams to understand requirements and provide technical input, • Contribute to architectural decisions and overall system design, • Conduct code reviews and provide constructive feedback to maintain high code quality, • Troubleshoot, diagnose, and resolve software issues efficiently, • Develop and maintain automated tests to ensure performance and reliability, • Mentor junior engineers and share technical knowledge and best practices, • Participate in agile planning, backlog management, and delivery updates, • Stay up to date with emerging technologies and software development best practices, • Support recruitment by contributing to interviews and selection decisions 🧠 Core Competencies • Excellent problem-solving and analytical skills, • Strong communication and collaboration skills, • Ability to thrive in a fast-paced, agile environment, • Leadership and mentoring capability, • High attention to detail and quality 🎓 Qualifications • BS/MS degree in Computer Science, Engineering, or a related field is desirable but not required 🛠️ Experience & Knowledge • 5+ years’ experience in software development, • Extensive experience with modern programming languages and frameworks, • (Ruby on Rails and React highly desirable), • Proven track record of building scalable, efficient software systems, • Strong understanding of the software development lifecycle and agile methodologies, • Experience working with cross-functional teams (Product, Design, Engineering), • Experience recruiting and mentoring junior engineers is a plus 💡 Skills • Proficiency in modern programming languages and frameworks, • Strong grasp of data structures, algorithms, and software design principles, • Experience with databases, APIs, and networking, • Knowledge of software testing methodologies and tools, • Familiarity with DevOps practices and tooling, • Ability to learn and adapt quickly to new technologies, • Clear, confident written and verbal communication ✅ What We Offer • Competitive salary: £70,000–£85,000 depending on experience, • Annual leave: 25 days, rising to 28 days over three years, • Fully remote, flexible working, • Pension scheme, • Professional development sponsorship and matched charity funding, • Private health and dental care after one year of employment

Accelerant is building a new platform that will serve as the backbone of how risk is exchanged in the future. The Product & Technology team is looking for a Full Stack Software Engineer who is passionate about building high quality software systems that are valued by customers. If you join our team, here are some of things you’ll be doing: • Working closely with peer engineers, product managers, and other stakeholders to understand project requirements and deliver solutions that meet business needs., • Developing new frontend and backend features that help make our customers successful., • Writing backend code in Typescript that is fully unit tested., • Writing frontend code in Svelte, optimizing the frontend codebase for speed, efficiency, maintainability, and scalability., • Moving fast, while taking the time to ship high-quality code. What you bring to the table: • Experience building and scaling web applications., • Strong understanding of modern JavaScript frameworks., • Strong coding ability., • Passionate problem-solving mindset., • Reputation for getting things done., • Strong sense of ownership., • Desire to learn and grow. Desired qualifications: • Experience with Typescript., • Experience with Svelte, web components, or equivalent component model., • Experience with cloud platforms such as AWS, and databases such as Postgres and Snowflake., • Experience with SQL-Like databases and data caching strategies such as Postgres, Snowflake, and Redis. About Accelerant: Accelerant is a data-driven, technology-fueled insurance platform that empowers underwriters to more effectively serve their insureds. We’re using advanced data intelligence tools to rebuild the way that underwriters share and exchange risk. With a current focus on the small and mediumsized businesses that power our global economy and their niche insurance needs, we align incentives to improve outcomes for everyone. Our full-service risk exchange supports our carefully selected, best-in-class network of underwriting teams. We leverage granular information on each policy to deliver unprecedented insight into insurance pools, and our specialty portfolio is fully diversified with very low catastrophe, aggregation or systemic risk. Confiden'al We’re proud to have been awarded an AM Best A- (Excellent) rating. For more information, please visit . Accelerant is a fully remote company. Work where you’re most productive and fulfilled. This position is open to remote candidates across the U.S. Canada, UK, and Europe, who have the flexibility to work with our teams distributed across Europe and North America. Most cross-team collaboration happens in the mornings of the Eastern Time Zone

Senior Python Software Engineer Permanent | UK Remote + Travel We’re hiring a Senior Python Software Engineer to join a globally distributed engineering team working on cutting-edge AI-driven digital solutions for major enterprise organisations. This is a permanent, full-time position for UK-based candidates. While the role is primarily remote, it involves regular travel to client sites across the UK and Europe, with all travel expenses covered. About the Company They are a globally distributed team of engineers, data specialists, and designers focused on building modern digital platforms and intelligent software solutions for enterprise clients. Their teams partner with organisations to modernise legacy systems, develop innovative digital products, and implement AI-powered technologies that deliver real business impact. We pride ourselves on combining deep technical expertise with a collaborative, people-first approach to engineering. With a presence across multiple countries, our engineers work closely with clients to solve complex technical challenges and deliver scalable, high-performance applications used by millions of users worldwide. The Role • As a Senior Python Engineer, you will play a key role in designing and building scalable applications, often incorporating modern AI frameworks and data-driven technologies, • You’ll work alongside experienced engineers, architects, and client stakeholders to deliver robust solutions in fast-moving project environments, • This role suits someone who enjoys technical ownership, solving complex problems, and collaborating closely with both internal teams and client organisations Key Responsibilities • Design, develop, and maintain Python-based applications, • Contribute to technical design, architecture, and engineering best practices, • Build scalable data storage and processing solutions, • Optimise application performance for speed, scalability, and reliability, • Translate complex business requirements into technical solutions, • Collaborate with engineers, technical leads, and client teams, • Contribute to source control, build, and deployment standards, • Gather feedback from stakeholders and continuously improve solutions, • Support project delivery alongside technical leadership What We’re Looking For • 8+ years of commercial software engineering experience, • Strong expertise in Python and modern AI frameworks, • Experience building AI-powered applications or working with agent-based frameworks (e.g., LangGraph, Agentspace, or similar), • Strong understanding of Git and version control workflows, • Experience with unit, integration, and end-to-end testing, • Hands-on experience with cloud platforms and database technologies, • Familiarity with CI/CD pipelines and automation practices Nice to Have • Experience with Golang, • Frontend experience with React, • Knowledge or hands-on experience with Kubernetes Please note: visa sponsorship is not available for this role. If this role sounds of interest please apply asap with your most recent CV.

Full-Stack Engineer (TypeScript/Node/React) Location: Remote Company: High-Growth HealthTech Startup The Opportunity After hitting some recent significant product milestones, my client are looking to expand their engineering team to match their business trajectory. You will be joining at a pivotal moment, working directly with the CTO and small team to bridge the gap between ambitious product roadmaps and high-quality technical execution. The Tech Stack • Frontend: React.js, Tailwind CSS, • Backend: Node.js, • Language: TypeScript, • Build & Scale: Develop new features from discovery to deployment, ensuring our platform can handle rapid user acquisition., • Strategic Collaboration: Work closely with the team to translate business goals into scalable technical solutions., • Code Excellence: Maintain high standards through code reviews, automated testing, and mentoring as the team grows., • Product Ownership: Take a seat at the table during product discussions, be a valued engineer who thinks about the "why," not just the "how." If you are interested in this opportunity please apply for a confidential chat!

Full Stack Product Engineer - London (will need to relocate if not in London) We’re looking for a Full Stack Product Engineer to help build and scale a high-growth product in a fast-paced environment. This role is ideal for someone who enjoys working across the stack, shipping features quickly, and solving real user problems. Responsibilities • Build and own user-facing features end-to-end, • Develop new product capabilities (including AI-powered features), • Optimise application performance, scalability, and reliability, • Work closely with users to understand needs and deliver solutions, • Experience in product-focused engineering environments, • Strong skills in TypeScript, Node.js, and React, • Experience with modern frontend tooling (e.g. Tailwind or similar) is a plus, • Solid knowledge of relational databases (e.g. PostgreSQL), • You’re a hands-on builder who enjoys creating products from scratch, • Comfortable working in fast-paced, evolving environments, • Interested in startup or high-growth settings, • Collaborative, pragmatic, and user-focused, • London-based role with primarily in-office working, • Competitive salary + great list of benefits, • Relocation support available for candidates moving to London from within the UK

Application Engineer - Connect Fibre £40,000 pa plus benefits Work from Home The Role Founded in 2020 by a team of like-minded, very experienced telecoms professionals, we have one vision; to deliver. We are a rapidly growing startup with a bold plan for the rapid rollout of multi-gigabit full-fibre broadband networks and services to communities across the UK. We are seeking a motivated and detail-oriented Application Engineer to join our dynamic team supporting the development, implementation, and maintenance of software applications. Working closely with other engineers and cross-functional teams you will ensure the successful delivery of high-quality solutions that meet business and customer requirements. This is an excellent opportunity to play a big part in our transformation plans. Duties and responsibilities • Design and implement backend services and integrations using Python and modern frameworks., • Build and maintain frontend applications using PHP, JavaScript/TypeScript and frameworks like Angular or Vue., • Troubleshoot and resolve complex technical development issues, providing timely and effective solutions., • Contribute to the creation and maintenance of technical development documentation, including user guides, system documentation, and design specifications., • Conduct regular code reviews to maintain code quality, performance and adherence to coding standards., • Work closely with other engineers, product owners, and other stakeholders to understand project requirements and contribute to the design and development process., • Suggest and implement improvements to the development process, ensuring efficiency and quality in application delivery., • Working closely with the wider Technology team to align system direction and deliver improvements., • Helping shape technical decisions and taking part in solution design discussions. Qualifications and Experience A developer with a proven track record in supporting successful development projects, involved in the full development lifecycle from analysis to development. • Proficiency in at least one programming language - Javascript, Python, PHP, • Understanding of web technologies (HTML, CSS, JavaScript) is a bonus, • Experience with Wordpress and WooCommerce would be beneficial, • Familiarity with software development methodologies (Agile, Scrum, Devops etc.), • Experience of Cloud infrastructures Azure or AWS, • Working experience of API and REST API integrations, • Strong analytical and problem-solving skills to identify and mitigate development risks effectively, • Experience of development and integration of SAAS applications, Hubspot beneficial but not essential, • Knowledge of geopandas, numpy, node or SQL is desirable but not essential, • Experience with GIT and Docker processes beneficial, • Excellent communication skills with the ability to convey complex technical concepts to non-technical stakeholders Personal Profile & Working Conditions Location: Candidates must be currently resident in the UK and with either UK citizenship or indefinite leave to remain. Candidates will: ▪ Be self-starters, able to demonstrate enthusiasm, tenacity and the ability to prioritise tasks in a rapidly changing environment. ▪ Be able to work effectively in a remote/hybrid working environment with minimal day-to-day supervision. ▪ Be able to demonstrate the ability and willingness to work in a dynamic, rapidly growing organisation. ▪ Be able to collaborate effectively across the organisation. Effective communication is essential. Connect Fibre operates a hybrid working model with main emphasis on home working with intermittent visits to company office locations, in particular the main office in London. Measured on Performance evaluation will be based upon: ▪ Productivity and specific targets to be agreed collaboratively with line manager ▪ Quality of work and feedback from peers and colleagues ▪ Delivery of systems and services within agreed organisation and budget constraints ▪ Collaboration and skills as a team player. ▪ Innovation and creativity. Direct reports • This role reports directly to the Head of Systems Development. The Rewards • Salary: £40,000 per annum, • 25 days holiday plus Bank Holidays plus Birthday Off (pro-rata), • Company Pension Contribution, • Private Medical and Dental package, • £1,500 Employee Referral Scheme, • Family Friendly Support Package Connect Fibre offers excellent team and business building opportunities. Please see for more information on our exciting new business! Interested applicants should, in the first instance, apply here or send an up-to-date CV to: Paul Blunt at Connect Fibre . All applications will remain strictly confidential.

Senior Full Stack Engineer (Python / React / TypeScript) Remote – Europe (CET preferred) We are partnering with a fast-growing European AI startup building a next-generation platform that is transforming how global fashion brands create visual content. Their technology enables companies to generate high-quality product imagery and creative assets using AI, dramatically reducing the time and cost associated with traditional photography production. The platform is already used by major fashion brands and is scaling rapidly as adoption grows. The team is now looking for a Senior Full Stack Engineer to help design and scale the core product powering this platform. This is a fully remote position where you will play a key role in building and evolving a production system used by enterprise customers. The Role As a Senior Full Stack Engineer, you will work across the stack to design, build, and scale high-quality software that powers the company’s AI-driven platform. You will collaborate closely with product managers, designers, and other engineers to translate product requirements into scalable, reliable systems that deliver real value to customers. This role is ideal for engineers who enjoy working in high-growth startup environments, solving complex technical problems, and shipping production software at scale. What You’ll Be Doing • Designing and building scalable backend systems using Python, • Developing and maintaining API-driven architectures, • Working with cloud infrastructure and distributed systems, • Designing and optimizing database systems for performance and reliability, • Building and maintaining frontend applications using React and TypeScript, • Collaborating with product and design teams to deliver high-quality user experiences, • Debugging and resolving issues across production environments, • Writing clean, maintainable, well-documented code, • Participating in architecture discussions and technical decision-making, • Contributing to a culture of rapid iteration and continuous improvement What We’re Looking For • 5+ years of software engineering experience, • Strong backend development experience with Python, • Experience designing and building API-driven systems, • Strong understanding of cloud infrastructure, • Solid experience working with databases and data modeling, • Frontend development experience using React and TypeScript, • Experience building and scaling production systems, • Ability to work autonomously in a fully remote, fast-moving environment, • Strong problem-solving and debugging skills Nice to Have • Experience with Django, • Exposure to generative AI tools or platforms, • Experience working in startup or scale-up environments, • Experience building products used by enterprise customers Why This Role • Work on a core product used by global fashion brands, • Join a high-growth AI startup solving real-world problems, • Work with modern technologies across the full stack, • Fully remote engineering culture, • Opportunity to have significant impact as the company scales

Senior Software Engineer – Fit-Tech SaaS | Up to £80,000 | UK Remote AWS Cloud | TypeScript | React | Serverless Architecture | HealthTech Recann is partnering with an innovative SaaS organisation in the health and wellness sector that is building a next-generation digital platform to support practitioners and clients across the UK and internationally. Backed by an experienced leadership team with a strong track record of scaling technology businesses, the company is investing heavily in modern cloud infrastructure and engineering practices to support rapid growth. This is an exciting opportunity for a Senior Software Engineer to join a growing engineering team and play a key role in designing, building and scaling a modern cloud-native platform. The role offers the opportunity to work across the full technology stack, contributing to architecture decisions, developing scalable services, and helping shape engineering best practices within a collaborative team. The Role As a Senior Software Engineer, you will work closely with engineering leadership and product teams to build and evolve a scalable SaaS platform supporting international growth. You will contribute to backend services, APIs, and frontend components while helping ensure the platform remains reliable, secure and performant as usage grows. The team embraces modern development tooling and AI-assisted engineering workflows to accelerate development and maintain high quality standards. Key Responsibilities • Design, build and maintain scalable backend services and APIs using TypeScript and modern Node.js frameworks., • Contribute to the development of cloud-native infrastructure on AWS, using services such as Lambda, DynamoDB, EventBridge, ECS and Fargate., • Develop user-facing features using modern frontend frameworks such as React., • Build and maintain integrations with external services including payment platforms such as Stripe and other third-party APIs., • Work with event-driven architectures to build reliable and scalable distributed systems., • Support international platform capabilities including localisation, multi-region deployments and scalable payment processing., • Contribute to CI/CD pipelines using GitHub Actions, ensuring reliable automated testing and deployment processes., • Maintain high standards of code quality using tools such as SonarCloud, automated testing and code reviews., • Implement infrastructure-as-code practices using AWS CDK to ensure repeatable and maintainable cloud deployments., • Monitor system performance and reliability using observability tools such as AWS CloudWatch and distributed tracing solutions., • Collaborate with engineers, product managers and designers to deliver high-quality product features. About You • Strong commercial experience building modern applications using TypeScript and JavaScript frameworks., • Experience working with AWS cloud services and cloud-native application architectures., • Experience developing RESTful APIs and scalable backend systems., • Familiarity with event-driven architecture and distributed systems., • Experience working with CI/CD pipelines and automated testing frameworks., • Knowledge of infrastructure-as-code tools such as AWS CDK or Terraform., • Experience integrating with third-party APIs and services., • Strong problem-solving ability and a collaborative approach to engineering. Desirable Experience • Experience working with React or modern frontend frameworks., • Experience integrating payment systems such as Stripe., • Familiarity with containerisation technologies such as Docker and AWS ECS., • Experience building SaaS platforms supporting international users., • Experience using AI-assisted development tools such as GitHub Copilot or ChatGPT. What’s on Offer • Salary up to £80,000 per annum, depending on skills and experience., • Fully remote working within the UK with occasional in-person meetups in London., • Opportunity to work on a modern cloud-native platform supporting rapid international growth., • Access to health and wellness services., • Vitality Health insurance., • Perkbox benefits platform., • Wellness credits and practitioner services., • 25 days annual leave, increasing by one day per year of service up to 30 days., • Additional birthday leave. Important Information • This vacancy is advertised by Recann, acting as an employment agency on behalf of its client., • The identity of the hiring organisation will be disclosed during the recruitment process., • Recann does not charge work seekers any fees for its recruitment services., • Candidate data will be processed in accordance with UK data protection legislation., • Further role information, including duties, reporting line, and working arrangements, will be provided prior to formal candidate submission.

Senior Backend Engineer – High-Scale Systems | Python & FastAPI | Security SaaS • Salary: £70k - £85k plus bonus, • Location: Fully remote, (UK-based), • Sponsorship is not available for this role Prism Digital have partnered with a super interesting and niche VC-backed client specialising in attack surface management and automated red teaming. Their platform provides organisations with real-time visibility into their attack surface and potential exploitable vulnerabilities. They have received numerous awards for being an up-and-coming security SaaS product company and show no signs of slowing down their growth. They've completed Series A funding, raising $29 million across three funding rounds, and are now seeking a Senior Backend Engineer. This role acts as the intersection between two teams - frontend software team and the security research team. You will be responsible for the entirety of the back end features of the products. You will be in charge of building scalable backend services and awesome messaging queues. You will be responsible for developing a Python-based back end platform that's handling 100,000+s of interactions daily. So the ideal candidate will come from a background of working with applications that are processing large amounts of data, transactions or instances daily. Key Requirements: • Python, • Previously worked at a start up / smaller sized company, • 5 years+ experience, • Ability to build software which scales, • Building messaging queues e.g., Kafka (nice to have) This is entirely a Python back-end development role (Python 3), where the core framework used is FastAPI and Kafka for the messaging queues. The data sits in PostreSQL and MongoDB. Benefits • Up to £85,000, • Fully remote, • 28-day holidays (including bank holidays), • Shares options, • Private health insurance via Bupa, • Competitive pension, • Salary reviews every 12 months This role does not accept applicants outside of the UK, nor does it offer sponsorship Senior Backend Engineer | Python, FastAPI & Scaling | Security SaaS • Seniority Level, • Mid-Senior level, • Industry, • Technology, Information and Media, • IT Services and IT Consulting, • Computer and Network Security, • Employment Type, • Full-time, • Job Functions, • Engineering, • Skills, • Back-End Web Development, • Scalability, • Distributed Systems, • Python (Programming Lang Senior Backend Engineer – High-Scale Systems | Python & FastAPI | Security SaaS

We’re hiring a Senior Software Engineer (Python) - Trading Systems to own and evolve a production options trading system. It runs during market hours, ingests real-time market data, and requires profiling-led performance engineering to keep p50/p99 latency, jitter, and reliability within tight bounds. You’ll take meaningful ownership day-to-day, partnering closely with the founder and the engineering team to prioritise work, ship improvements quickly, and keep the system fast, reliable, and correct. Who this is for • This role is for engineers who have built and owned real-time, performance-critical systems., • It is not suitable for candidates whose experience is mainly web product development (frontend-heavy or CRUD backends)., • We’re looking for proven experience with measuring and improving p99 latency/jitter and operating systems during time-critical windows., • Must be based in the UK and with a legal right to work in the UK Location: UK-based Working style: Mostly remote, occasional in-person days for planning/coordination Support: Availability during core market hours required What You’ll Do • Own and improve a production Python codebase that runs during market hours., • Build and optimise real-time market data pipelines (throughput, p50/p99 latency, jitter)., • Do profiling-driven performance work across ingestion → compute → messaging → consumers., • Improve reliability: freshness/staleness handling, safe degradation, back pressure, fault isolation., • Strengthen “developer leverage”: replay/simulation tools, regression tests, and debugging tooling., • Work with cloud infrastructure, deployment, monitoring, and incident response., • Collaborate directly with the founder and engineering team on architecture and roadmap. Essential Skills • 5+ years professional Python experience; you’ve shipped and owned production systems., • Built/owned a real-time / low-latency system (not batch ETL) with measurable performance goals., • Strong understanding of async + multiprocessing trade offs and performance profiling., • Comfortable owning an existing codebase: refactors, tests, architecture improvements., • Experience with messaging / event-driven systems and strong API/schema discipline., • Production ownership mindset: incidents, monitoring, and fast debugging when it matters., • UK-based preferred and able to support core market hours when required. Desirable Skills • Interactive Brokers (TWS/IB Gateway) or similar brokerage/execution APIs., • Experience with trading, market data, or execution systems., • Experience designing safety constraints/guardrails in automated systems. What We Offer • Competitive salary (negotiable) + performance-related bonus., • Mostly remote, with some in-office collaboration days for coordination and planning, • Lean environment, direct impact on a live system., • High ownership and influence over system design and roadmap.

The ideal candidate will have extensive knowledge of AngularJS and Protractor and the ability to develop new features while maintaining current functionalities.

A bespoke software development firm in the UK is seeking a Frontend Angular Developer with at least 5 years of B2B project experience. The ideal candidate has a strong background in Angular, with attention to detail and ability to manage changing priorities.

Role: Lead QA Engineer Location: Nottingham Working Arrangement: 1 or 2 days a week in the office Salary: Up to £60k Are you passionate about building high-quality software and preventing issues before they reach users? We’re looking for a Lead QA Engineer who takes pride in improving development processes, shaping testing strategy, and driving excellence across the release lifecycle. In this role, you’ll work closely with product and engineering teams to define test cases, ensure clarity in bug reporting, and embed strong QA practices across the business. You’ll play a key role in release management, collaborating with engineering leadership to deliver reliable, high-performing software. You’ll also lead on automated testing, contribute to continuous improvement of QA metrics and processes, and support the team in delivering robust, scalable solutions. This is a flexible hybrid role, combining remote and office working in a way that suits you. What you’ll bring You’re someone who cares deeply about quality and enjoys solving complex problems. You combine technical expertise with a detail-focused mindset and strong communication skills. • Strong experience with TypeScript, browser developer tools, and modern testing frameworks (e.g. Cypress, Playwright, Selenium), • Hands-on experience with CI/CD pipelines, API testing, and performance testing tools, • Confidence working with Git-based workflows, • Experience leading or mentoring QA engineers, • A proactive approach to improving processes and preventing defects It’s a bonus if you also have • Experience with SQL and AWS (e.g. CloudWatch), • Familiarity with Agile/Scrum environments and Atlassian tools, • Exposure to modern frontend frameworks such as Vue.js Why this role? You’ll have the opportunity to shape QA standards, influence engineering practices, and make a real impact on product quality. Your work will directly improve user experience and help deliver reliable software at scale. We welcome diverse applicants and are dedicated to treating all applicants with dignity and respect, regardless of background

Promote and demonstrate software engineering best practices and principles. The purpose of this role is to solve complex business problems and technical challenges through the design and development of frontend applications. Drive technical design and architectural decisions for the frontend, ensuri

Zuma Labs is a disruptive technology startup building force multipliers for systemic industries.Our first two products, Venetian and Squawk, target the over-the-counter (OTC) trading markets.We work closely with our customers and count a large publicly traded brokerage among our partners.Trading tec

Principal Frontend Engineer at Hawk-Eye Innovations and the lead for our Frontend Engineering discipline. This role is suited to an engineer who is comfortable owning production features, shaping frontend architecture, and supporting other engineers as we continue to scale our platforms. Supporting

A dynamic tech startup in London is looking for a frontend-focused software engineer to own significant parts of the frontend.

This role involves building products that empower artists and record labels worldwide, contributing to high-quality user experiences, and mentoring junior engineers. Ideal candidates will have over 8 years of experience in frontend development using modern technologies like TypeScript and React, alo

The ideal candidate should have over 7 years of software engineering experience, with a strong focus on frontend technologies like React and TypeScript. A leading AI video platform in London is seeking a Senior Software Engineer to drive accessibility initiatives.

A leading healthcare provider in Greater London is seeking a developer experienced in frontend application development to create intuitive and accessible user interfaces.

A leading financial services group is seeking a Senior Software Engineer with strong full‑stack development experience, focusing on TypeScript and Java/Spring Boot. The role involves delivering scalable, secure solutions alongside engineers and product teams.

A fast-growing AI learning startup is seeking a Staff Software Engineer to own major product areas and drive the technical direction of their platform.

You will define how the frontend is structured, how products feel to use, and how the team approaches building user-facing features. Raise the bar across engineering through example and feedback.

A leading global financial services firm is seeking a Web Engineer to develop and maintain user-friendly web applications.

An elite FinTech firm in London is searching for a Software Developer specializing in React.In this role, you will lead the development of modern front-end architecture and build greenfield digital products.The ideal candidate will possess a degree in Computer Science or a related field and demonstr

A growing crypto tax compliance platform is seeking a Remote Frontend Engineer to own frontend features from scoping to deployment.

The role offers a hybrid work model in a supportive environment focused on clean engineering practices and ownership over projects. If you are passionate about frontend development and creating impactful digital products, this position is perfect for you. A growing technology company in London is se

The ideal candidate will have over 4 years of frontend software engineering experience and a passion for building high-quality user experiences. A leading technology company in Greater London is looking for a Senior Front End Software Engineer to develop sophisticated applications on the Palantir Fo

Ideal candidates will have 3–5 years of web development experience, a strong understanding of frontend technologies, and a passion for experimentation.

A leading digital asset firm in Greater London is seeking a Senior Frontend Engineer who will take ownership of features and solve problems effectively.

A dynamic data collection company in the UK is looking for a Senior Software Engineer, Frontend. The ideal candidate has over 5 years of experience in frontend web applications, expertise in TypeScript and ReactJS, and a strong focus on accessibility and performance.

Experience: 3–5 years of web development experience with a mastery of frontend fundamentals (JavaScript/TypeScript, HTML, CSS). Fullstack Fundamentals: Comfortable managing APIs, authentication, and data flows to connect frontend experiences with backend systems. Specialized Background: Experience

A global leader in information and analytics is seeking a Software Engineer III to build responsive and performant user interfaces using TypeScript, React, and Node.

We’re looking for a Full Stack Engineer with Frontend specialism to work closely with product, design, mobile, and machine learning team members to design & build experiences that re‑define retail shopping.

A digital comparison service company in Greater London seeks a Senior Full Stack Engineer to enhance their technology platform.

A global financial services leader in Greater London is seeking a Software Engineer to elevate their software engineering career.

A health-focused technology company in the UK seeks a Senior Frontend Engineer to lead growth experimentation efforts. You will own the frontend platform, engaging in design and testing of features that enhance patient interactions.

A leading fintech company in the United Kingdom is seeking a skilled Frontend Developer to enhance their mobile and web applications. The ideal candidate has at least 2 years of experience in frontend development and is passionate about delivering exceptional user experiences.

A Climate-Tech Company in Central London seeks a design-led Frontend Developer who prioritizes user experience and aesthetics in product development.

We are looking for a Senior Frontend Software Engineer to join our product team. You will design composable frontend architectures, optimise performance for data-heavy interfaces, and ensure our engineers and scientists can interact intuitively with massive datasets and simulation results. As a seni

FX Digital is a specialist Connected TV agency, providing a wide range of services, including Product Strategy, Design, Engineering, and Test Automation. As a Senior Software Engineer at FX Digital, you take a leading role in shaping the technical direction of our Connected TV and living room experi

A fintech startup in Greater London is seeking a React Native Engineer for a 3-month contract.

A mission-driven technology firm in Greater London is seeking a skilled Frontend Engineer. You will collaborate with backend engineers and product managers to enhance user growth and business outcomes. In this role, you will design and maintain high-quality frontend experiences across web and mobile

A leading technology firm in the United Kingdom is looking for a Software Engineer to enhance client services and backend/frontend systems.

A leading financial institution is looking for a Front End Developer to enhance user-facing web applications supporting financial services.In this hands-on role, you will develop user-friendly interfaces using modern frameworks like React or Angular, collaborating closely with design teams and ensur

A technology firm in Greater London seeks a React Developer to design and develop their new Super Backoffice application.You will work on greenfield projects, requiring experience in React, TypeScript, and related technologies.The role includes collaboration with cross-functional teams to integrate

A leading insights platform seeks a Senior Frontend Engineer to innovate on their AI-powered conversational interface.