Top Backend Developer Jobs in London

The role entails developing scalable backend systems using Node.js and Nest.js, ensuring high performance and security, and optimizing microservices architecture. Responsibilities also include system monitoring, code quality checks, and collaboration within a fintech context.

NetBox Labs seeks a Backend Engineer to design and maintain backend systems, collaborate on APIs, optimize data, and ensure software reliability. Ideal candidates have strong Golang and Python skills and 5+ years of experience.

As a Lead/Staff Backend Engineer, you will design and scale the core API and data systems, mentor engineers, and influence technical strategy.

As a Senior Backend Engineer, you will develop tools, APIs, and integrations, maintain the shared codebase, debug issues, and mentor team members in a fully remote work environment.

Develop and maintain backend features for gaming organizations, integrating Web2 and Web3 technologies while ensuring performance and scalability.

The Senior/Staff Backend Engineer will design and optimize backend services using Java and Apache Kafka, manage databases, mentor engineers, and ensure system scalability and reliability.

As a Senior Backend Engineer at RoomPriceGenie, you will develop scalable solutions using Python, Django, and FastAPI, collaborate with teams, and ensure quality code delivery while fostering a strong engineering culture.

As a Senior Backend Engineer, you will manage the architecture, development, and operation of User Management services, focusing on Keycloak, while maintaining security and scalability across agile teams.

Join a cross-functional team as a Senior Backend Engineer, building tools, APIs, and integrations with Elixir. Focus on complex projects, mentor peers, and contribute to code quality and product improvements.

As a Senior Backend Engineer, you'll build tools, APIs, and integrations, leading projects and mentoring other engineers while contributing to a cross-functional team.

The role involves developing and supporting data processing pipelines, collaborating with ML Engineers, and improving infrastructure while mentoring team members.

The Senior Software Engineer II will develop impactful production code, design new features, and enhance user experiences while collaborating with cross-functional teams.

As a Senior Product Engineer at Secfix, you will design, build, and maintain backend systems, collaborating with product teams and mentoring junior engineers, while leveraging AI tools for development.

Responsible for building scalable distributed systems, mentoring teammates, innovating on technical solutions, and improving team processes. Requires expertise in backend languages, especially Golang and Typescript.

Design, develop, and maintain backend services and APIs for the IAM platform. Collaborate to build features that meet security standards and optimize performance.

Design and develop backend services for the IAM platform, focus on performance and scalability, collaborate with teams, optimize security, and stay current with industry trends.

As a Senior Backend Engineer, you'll develop backend services and APIs, collaborate with cross-functional teams, and ensure code quality and performance in a high-growth environment.

As a Senior Backend Engineer, you will design, build, and maintain scalable backend services for HubSpot's Global Search, collaborating with teams to optimize data retrieval and system performance.

As a Digital Backend Design Engineer, you will handle physical implementation of digital designs, ensuring optimal performance, power, and area while collaborating with RTL design and packaging teams.

Seek a Senior Backend Software Engineer to architect and own a robust integrations platform, improving development lifecycle and mentoring the team. Requires 7+ years of experience in backend systems, especially with Node.js and integrations expertise.

Lead Software Engineer responsible for back-end development, project ownership, and collaborating with product managers to shape AI-powered video generation solutions.

As a Backend Engineer (Data Engineering), design and build scalable data pipelines and infrastructure for processing security data, ensuring reliability and performance.

As a Lead Backend Engineer, you'll manage and enhance Proton's marketing technology systems, integrating tools and supporting campaigns while ensuring security and privacy standards.

As a Backend Engineer, you'll develop features for Proton Drive, collaborate with teams, perform code reviews, and implement testing strategies.

As a Backend Engineer, you'll design and develop backend APIs using PHP/Symfony, lead complex projects, and ensure high-quality service for B2B clients.