Top Backend Developer Jobs in London

As a Backend Engineer, you will maintain and evolve backend services, ensure high code quality, take ownership of features, improve observability, and support system reliability.

The Senior Backend Engineer will develop scalable product features, lead technical initiatives, mentor engineers, and guide technical strategies related to GitLab Geo.

As a Back End Engineer, you'll develop clean code, collaborate with stakeholders, mentor junior engineers, and uphold best practices in software engineering.

As a Backend Engineer, you will focus on re-architecting GitLab Runner for ultra-scale CI/CD operations, building a scalable foundation for CI functions execution, and solving medium complexity technical problems, while collaborating with cross-functional teams to enhance product quality and performance.

The Back End Engineer will work on complex design challenges, process large amounts of data, and automate client onboarding. Emphasis on domain modeling and building robust software is essential.

As an Intermediate Backend Engineer, you'll develop features, optimize performance, collaborate with teams, and improve the GitLab Agile Planning platform.

The Backend Engineer will develop and improve the investment platform for athletes, focusing on scalability and security in backend solutions, while collaborating with the team for seamless user experiences.

The Senior Back End Engineer will improve iwoca's Lending API, work on scalable systems, and manage projects to optimize partner integrations.

You will build backend infrastructure for a digital energy platform, working on real-time systems and customer energy pipelines while adapting to business needs

Develop, operate, and optimize web crawlers and data processing systems, while collaborating on search technologies and fullstack features.

As a Senior Software Engineer II on the Flywheel team, you will write and ship impactful code, develop new features, collaborate across teams, and contribute to enhancing user experience while addressing technical challenges.

As a Staff Backend Engineer, you will enhance GitLab's Developer Experience by optimizing tooling, CI/CD pipelines, and testing frameworks, while collaborating with teams to identify pain points and drive improvements.

As a Senior Backend Engineer, you will design and develop security platform capabilities, architect greenfield projects, and create robust APIs, contributing to the infrastructure of enterprise security solutions.

As a Staff Back End Engineer, you will lead the design and development of a payments platform, manage a team, and enhance engineering standards.

As a Staff Backend Engineer, you'll lead the technical vision for Payments and Fulfilment systems, mentor engineers, and ensure scalability and security.

Design and improve content delivery applications using event-driven architecture. Collaborate in Agile/Scrum teams, conduct code reviews, and manage multiple projects.

The Senior Back-End Engineer will design, develop, test, and maintain Scopeworker's enterprise platform, managing project priorities and collaborating with cross-functional teams.

The Senior Back End Engineer will solve complex design and technical challenges in the energy sector, focusing on system automation and domain modeling. Responsibilities include processing large datasets and integrating AI solutions, contributing to innovative energy management solutions.

As a Backend Software Engineer, you will develop and improve backend systems, collaborate with teams, ensure product reliability, and champion security.

As a Technical Lead, you will guide a team in developing consumer-grade products, mentor engineers, and collaborate across departments to enhance user experience and streamline processes.

As a Backend Engineer, you will build and maintain micro-services architecture, work with various technologies, and influence product direction while collaborating with cross-functional teams.

As a Senior Backend Engineer, you'll architect, develop, and optimize JavaScript code, manage AWS infrastructure, and collaborate to improve the platform's performance and user experience.

As a Back End Engineer, you will drive growth through data engineering, work with marketing and sales teams, ensure data compliance, and manage databases.

Lead delivery of projects for scalable back-end systems and payment solutions. Collaborate closely with teams to create actionable technical plans and contribute high-quality code.

The Software Developer will design, build and maintain .NET backend applications and APIs, manage data access, and resolve application issues.