Top Backend Developer Jobs in London

As a Principal Backend Engineer, you will build scalable backend services with Java, design APIs, implement microservices, and work with AWS cloud technologies.

The role involves designing and developing backend services, maintaining RESTful APIs, and optimizing systems for financial transactions with a focus on automation and security best practices.

As a Backend Software Engineer, you'll design and develop scalable services, lead development in event-driven architectures, and collaborate with cross-functional teams for global payment integration.

The role involves designing and building cloud-native applications using Java and Spring Boot, focusing on scalable microservices for financial institutions while leading agile practices.

As a Backend Engineer, you'll enhance accounting integrations, improve workflows, expand global offerings, and build a scalable platform architecture.

The Backend Engineer will develop scalable financial products for shared finances, collaborating with cross-functional teams to create and improve customer experiences across international markets.

As a Staff Backend Engineer at GitLab, you'll enhance backend infrastructure for CI, integrate AI features, and ensure reliability and performance in CI/CD workflows.

As a Senior Backend Engineer, you'll manage Kubernetes clusters, implement GitOps workflows, establish infrastructure as code practices, and enhance platform reliability and security controls.

As a Staff Engineer, you will implement security features for software supply chain management, focusing on dependency and container scanning, while collaborating with cross-functional teams to optimize GitLab's capabilities.

The Staff Backend Engineer enhances Developer Experience by improving engineering workflows, reducing testing flakiness, optimizing CI/CD pipelines, and fostering a culture of learning across teams.

As a Senior Backend Engineer at GitLab, you'll design and optimize AI-driven backend features for CI processes, improve system reliability, and collaborate cross-functionally to enhance platform performance.

As a Senior Backend Engineer on the Secret Detection team, you will design and implement backend features, enhance performance, and contribute to secret management systems using Ruby on Rails, GraphQL, and Go.

The Senior Software Engineer will enhance the Acquiring Platform by designing and implementing payment methods, APIs, and managing stakeholder relationships. Responsibilities include building scalable infrastructure for merchant payment systems and optimizing distributed architectures.

Lead development projects focusing on customer experiences and operational management. Mentor other engineers, make strategic tech decisions, and solve complex challenges while contributing high-quality code.

As a Senior Backend Engineer at DuckDuckGo, you'll lead backend projects, mentor engineers, and develop AI-enhanced features for the company's privacy-centric product line.

The Senior Backend Software Engineer will develop and maintain a cloud-based video surveillance system, focusing on backend development, feature enhancement, and system scalability in a collaborative agile team environment.

As a Senior Backend Engineer, you'll oversee the Secrets Manager's architecture and development, ensuring secure handling of credentials and collaborating on backend solutions.

As the Engineering Lead, you'll design and build backend systems for business expense management, leading a diverse team and overseeing the technical roadmap to enhance business customer experiences.

The Senior Software Engineer will design and build backend services for health data, improve reliability, and deliver robust solutions to enhance patient care.

The Founding Product Engineer will build and scale tech solutions for the NHS, focusing on automating administrative processes and ensuring quality user experiences. Responsibilities include coding, working in cross-functional teams, and influencing product direction with autonomy.

Lead architecture and delivery across the Consumer domain, specialising in search. Drive scalable, resilient system design, influence cross-team product decisions, mentor senior engineers, and raise engineering standards and observability.

Join as the second backend engineer to build scalable infrastructure for real-time voice interpretation, owning the core API platform, and architecting systems for high concurrency.

Design and build backend systems for Quadrivia's clinical AI platform, ensuring reliability, high availability, and compliance with healthcare regulations while collaborating with cross-functional teams.

The Senior Backend Engineer will design and deliver backend solutions for Depop's product discovery and personalization systems, improving search relevance and recommendation quality, while working alongside cross-functional teams in an innovative environment.

The Senior Backend Developer will drive impact by collaborating with stakeholders, design and develop high-quality software, shape architecture, and lead technical direction while promoting innovation and collaboration within the team.