Top Full Stack Developer Jobs in London

Design, develop, deploy, and maintain advanced AI products and data pipelines. Collaborate with engineers, data scientists, and product owners to deliver production-grade, secure, scalable code. Architect AI-enabled engineering workflows, improve SDLC automation, ensure compliance, and provide technical leadership and architecture governance.

Lead design, build, and operate cloud-native AWS microservices using Kubernetes. Drive CI/CD, containers, IaC, monitoring, reliability, and incident resolution. Champion AI-assisted engineering practices, mentor engineers, participate in architecture reviews, and optimize platform availability and scalability for low-latency trading.

Build and own a centralized Customer Risk Assessment platform to aggregate fincrime signals. Design, develop, and deploy resilient backend microservices (Java/Spring Boot) and intuitive frontends (React/TypeScript). Drive risk-mitigation components and scalable servicing workflows, collaborate cross-functionally, and take product ownership from problem discovery to production delivery.

Design, build, test, and operate secure full-stack features using Java-based microservices and event-driven architectures. Contribute to system design, debugging, automation, CI/CD, and production stability. Collaborate on architecture reviews, share engineering best practices, and responsibly use enterprise AI-assisted development tools.

Design, build, test, release, and operate secure, resilient full-stack features for production services. Lead architecture and delivery, author and review Java-based code, troubleshoot cross-service production issues, implement automation and CI/CD, improve performance and stability, and mentor teammates while responsibly leveraging enterprise AI-assisted development tools.

Build and maintain full-stack SaaS features across backend and frontend: develop scalable Python and .NET services, create React/TypeScript UIs, design and integrate REST/gRPC APIs, support cloud-native deployments, production monitoring, incident resolution, and apply security, CI/CD, and testing best practices while collaborating with product and business stakeholders.

Drive architecture and implementation of scalable, multi-tenant embedded finance infrastructure using React and TypeScript. Own cross-domain features, design integrations for enterprise customers, collaborate with Product/Design/Compliance/Sales, and optimize for performance, maintainability, and production excellence to support high-scale fintech customers.

Build and maintain multi-tenant, high-scale embedded finance infrastructure and cross-domain product features. Design integrations and solutions for enterprise customers, balance performance and velocity, and collaborate across Product, Design, Compliance, and Sales to deliver production-ready systems.

As a Senior Full-Stack Engineer, you will architect scalable solutions on GCP using Node.js, React, and Next.js, mentor engineers, streamline data mapping, and work cross-functionally to enhance PIM integrations.

Design and maintain scalable web applications and backend services for trading operations while optimizing performance and mentoring junior engineers.

Build full-stack, low-latency trading and pricing tools for options traders. Collaborate with traders, researchers, and business stakeholders to design intuitive frontends and scalable backend services, prototype and productionize distributed systems, and expand trading capabilities globally while improving performance, stability, and usability.

Lead design and implementation of scalable backend and frontend systems, own domains end-to-end, set technical strategy and architecture, mentor engineers, drive cross-team initiatives, and improve reliability, performance, testing, monitoring, and CI/CD for customer-facing microservices.

Join the International Accelerator full-stack team to design, build, and operate Direct-to-Consumer products across international markets. Break projects into tasks, collaborate with PM/design/analytics, build and monitor APIs and web apps, support on-call and availability, participate in hiring and team growth, and write clear, well-tested, maintainable code.

Lead and deliver full‑stack features for international direct‑to‑consumer products. Collaborate with product, design, and analytics; own operations, metrics, on‑call, code quality, and talent development while driving technical design and execution.

Design, build, and scale the partner developer web portal and supporting backend services. Implement TypeScript/React/Next.js frontend features, GraphQL schemas and resolvers, and integrate with Java Spring Boot services. Translate complex financial workflows into secure, high-performance, data-rich interfaces and ensure type-safe, well-tested code. Collaborate with product, design, and engineering teams to deliver a reliable developer experience.

Design, build, and maintain backend services and APIs for GTM and growth platforms; contribute across the stack; resolve performance, scalability, and reliability issues; review code; mentor junior engineers; document architecture and design decisions.

Design, develop, and deliver frontend (React) and backend services; produce architecture artifacts; analyze large data sets and visualizations; improve code quality and system resiliency; mentor junior engineers; use enterprise-authorized AI-assisted development tools; contribute to engineering communities and continuous improvement of infrastructure platform services.

Develop and maintain data pipelines and business applications to support model risk governance. Implement model performance monitoring, workflow automation, and LLM-enabled solutions using Python and web frameworks. Emphasize data controls, testing, AI-assisted development tooling, and collaboration with cross-functional stakeholders to deliver secure, reliable analytics and efficiency tools.

Lead and mentor an agile team to design, develop, secure, and operate scalable cloud-native applications using modern front-end tech and AI-assisted engineering practices; drive automation, code quality, resiliency, and operational stability.

As a Full Stack Software Engineer, you'll develop and architect user interfaces, manage APIs for data workflows, and improve applications within the Foundry platform, while collaborating closely with users to understand their needs.

Develop and enhance bespoke backend-focused full-stack applications for post-trade functions (Treasury, Finance, Risk, Settlements). Design databases, build .NET services, deploy to Azure, support CI/CD, engage business stakeholders, and improve development processes. Contribute to BI and data-visualisation solutions and provide operational support.

Lead full-stack development and co-manage a lean engineering team to build SunCore's web and mobile infrastructure. Implement CI/CD, migrate hosting to DigitalOcean with Cloudflare, migrate CRM to HubSpot via Zapier, integrate multiple APIs and third-party services, and deliver a secure Flutter mobile app and dashboard with SOC2-level security, 2FA/biometric login, and wallet integrations.

Architect, develop and maintain enterprise Drupal (v9/10+) web applications, build custom modules in PHP, consult with stakeholders to gather requirements, plan and estimate development tasks, ensure performance, security and secure coding practices, and work with front-end frameworks (Vue/Nuxt) and CI/CD/Docker where applicable.

Design, develop, and deploy scalable SaaS applications while implementing DevOps practices, ensuring high performance, and collaborating with the product team to enhance user experience.

Design, build, and deploy ML-powered services, APIs, microservices, and full-stack tools for fraud and identity analytics. Integrate models into real-time production, implement automated training/monitoring workflows, own DevOps and security for services, and collaborate with data scientists, architects, and QA.