Top Full Stack Developer Jobs in London

Leads full-stack software development across React or Angular frontends and Node.js/TypeScript backends while owning application lifecycle, risk, controls, resiliency, security, compliance, and operational governance. Designs, tests, deploys, and supports production systems; coordinates disaster recovery and technology refresh activities; mentors engineers; promotes AI-assisted development; and partners with risk, controls, and product stakeholders in an agile environment.

Designs, develops, tests, and troubleshoots secure, scalable software systems using Java or Python. Creates production code, contributes to architecture and design artifacts, analyzes large datasets, improves system architecture and coding practices, and supports operational stability. Works within agile teams, participates in engineering communities, and collaborates across cloud, artificial intelligence, machine learning, mobile, and other technical disciplines.

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.

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.

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.

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.

Build and maintain full-stack features across frontend, backend and database. Own projects end-to-end, integrate third-party services, improve architecture, performance, security and reliability, use AI tooling to accelerate delivery, investigate production issues, set engineering standards, and mentor the growing team.

The Principal Full-Stack Engineer will manage complex projects, improve existing features, write tests, and oversee end-to-end software lifecycle, while ensuring performance and reliability across systems.

Leads full-stack development across multiple value streams, setting technical direction and overseeing quality and delivery. Designs Azure cloud infrastructure using Kubernetes, Service Bus, APIM, Key Vault, and infrastructure-as-code. Mentors engineers, governs AI-assisted development, promotes TDD, SOLID, event-driven architecture, serverless, and DevSecOps practices, and collaborates with Product, UX, Architecture, and external engineering partners.

Design and implement Camunda 8 lending origination workflows, build Java/Spring Boot backend services and React UIs, ensure automated test coverage, apply TDD, CI/CD and microservices practices, participate in Scrum and provide production/UAT support within a banking environment.