Full Stack Engineer Jobs in London

You will work with Java, AWS, JavaScript, React, and TypeScript as a hands-on Senior Software Engineer or Technical Lead. You will provide technical direction and lead engineers while designing and building solutions on AWS.

You will work with Python, Django, Flutter or React, PostgreSQL, and AWS on a Greenfield project for a client server that builds digital platforms.

You will own a full production system including a React/TypeScript web app, Postgres database, data pipelines, deployments, integrations, and an LLM serving stack. This role continues development of the company’s engineering platform with genuine full-stack breadth in one codebase.

You will work with React/TypeScript, Postgres, data pipelines, deployments, integrations, and an LLM serving stack. As the first full-stack engineer, you will own and develop the company’s MLOps platform end to end, including the web app, database, and production system.

Develop and own a full AI platform using React/TypeScript, Postgres, data pipelines, and an LLM serving stack. Build and manage the web app, database, deployments, and integrations end-to-end as the first engineering hire.

Use Java and C# to design and develop software solutions that support product and business objectives, working with Principal Engineers and Architects to define engineering best practices at Spyrosoft in a hybrid London role.

Build high-performance, real-time applications using Next.js, React, TypeScript, Web Components, AG Grid, and WebSockets or SignalR. The role involves developing complex, data-driven interfaces with real-time communication.

Work with PHP, JavaScript, HTML, CSS, Git, GitHub, Docker, and Linux to build secure, scalable production systems and integrate APIs. The role is at MedPal AI Plc, but no specific project or team scope is described in the listing.

You will work with Java, Spring Boot, JavaScript, Angular, relational databases and SQL, REST APIs, real-time systems, and CI/CD, alongside legacy Ruby. The role is in a startup or SME where you’ll take on a variety of full-stack development responsibilities.

You will work in an Agile team designing and implementing solutions for the Software Factory, supporting developers in design, code, and review. The client is BAE Systems, but the listing does not specify the team’s project or product. Team size is not stated.

Work with Java, C#, ReactJS, microservices, Kafka, Oracle, Couchbase, Prometheus, Grafana, CloudWatch, and CI/CD tools like Concourse. Focus on building and supporting APIs, event-driven systems, and observability pipelines. No specific product or team scope is described.

Work with modern development stacks and tools as part of a close-knit team building business-critical software for organizations across the UK at a growing Derry/Londonderry software company.

Work with React, TypeScript, Python/Node.js, Next.js, NoSQL/Relational databases, Docker, and cloud deployments. You will collaborate with public sector clients to build full-stack AI applications and custom LLM training data. Scale’s Global Public Sector team applies AI to critical government challenges.

JPMorgan★3.9 (20k)· London

You will work with Java, Spring Boot, Hibernate, JPA, Spring Kafka, microservices, CI/CD, and AI-assisted coding tools; preferred skills include React, Angular, Kubernetes, and Python. You’ll build production-grade full-stack software that powers JPMorgan’s global banking businesses and supports millions of customers.

Apple★4.1 (14k)· London

You will work with Go, React, PostgreSQL, and Kubernetes to build internal tools for SREs and engineers. The Apple Services Engineering team provides infrastructure and tooling that supports cloud engineering and helps make Apple’s services (iCloud, TV+, App Store) highly reliable.

Hands-on Head of Engineering role building a modern, API-first, microservices-based platform for a specialty MGA. Will work with cloud architecture, modular services, AI, and data platform to deliver embedded insurance products. Initially close to code, then responsible for defining team structures and scaling the engineering organization.

You will work with Java 17+, Kotlin, Vert.x/Spring WebFlux, Kafka Streams/Apache Flink, gRPC, FlatBuffers/Avro/Protobuf, Elasticsearch/Solr, AWS (EKS), Docker, Kubernetes, Terraform, GitLab CI, Redis, and GraphQL. You will build and modernize the backend services powering event discovery, real-time seat availability, and interactive venue experiences for Ticketmaster's high-traffic prepurchase platform. This is a hands-on coding role with no direct reports.

Lead a small multidisciplinary team building a predictive sports modelling platform for the gaming industry. You will work with Java Spring, Kafka, AWS, Docker, and Kubernetes, while exploring AI-enabled engineering tools.

Lead engineers on Canada Life UK's digital team work with modern component-oriented front-end frameworks, CI/CD pipelines, test automation, and Azure-hosted solutions. You will design and build accessible, responsive user interfaces (WCAG 2.2 AA standards), optimize front-end performance and Core Web Vitals, and contribute hands-on across full-stack development. This role is one of several Lead Engineers in Digital who collaboratively set technical direction and engineering standards.

Xelix★0.0· London

You’ll lead design and delivery of production-grade AI solutions combining machine learning, LLMs, and robust engineering, architecting complex agent-based workflows and tool ecosystems. You will work with modern AI-assisted development tools and define evaluation frameworks. Xelix automates financial controls for enterprise Accounts Payable teams.

Node.js, TypeScript, AWS, Kubernetes, REST APIs, Terraform, EventBridge, SQS, and CI/CD. You’ll join a high-growth UK payments fintech building scalable B2B payments infrastructure and event-driven distributed systems. As a Senior Engineer, you’ll shape architecture, own features end-to-end, and mentor engineers.

You will work with Python, Django, FastAPI, PostgreSQL, AWS, and distributed async workers. The team builds an AI platform that processes purchasing records and recipes to measure and reduce carbon emissions for the food industry. You will own the backend for a core product in an eight-person startup.

You will work on mobile or web applications, using JavaScript, React, Node.js, TypeScript, Python, or Java for web, or Swift, Objective-C, Kotlin, or Java for mobile. Konrad is a digital consultancy that builds consumer and enterprise digital products.

Amazon★3.5 (56k)· London

You will work with Java, C++, or C# and build large-scale distributed systems as part of Amazon's IAM group, which protects customer and corporate data. This is a greenfield initiative focused on security innovation through data exploration and machine learning. The role requires cross-functional collaboration across multiple teams and technologies.