Top Backend Developer Jobs in London

As a Senior Software Engineer at HubSpot, you will write and ship production code with meaningful impact, work on new features contributing to company growth, collaborate with cross-functional teams, and help improve user experience through experiments and data analysis.

The Senior Software Engineer II, Notifications Backend role at HubSpot focuses on building privacy features within HubSpot products to help customers comply with regulations such as GDPR and enhance transparency by offering insights into consent-related data. The ideal candidate will write micro-services primarily with Java 11, work collaboratively in a dynamic environment, and make pragmatic decisions to solve problems.

Develop new features for SpotMe's CMS (Backstage) and WebApp, optimize user experience, maintain integrations with external systems, participate in cross-team projects, and refactor legacy code.

We are seeking a strong Python backend engineer to work on our SaaS offering. The role involves discussing and researching issues, taking ownership of the development lifecycle, being hands-on with technical expertise, and documenting code.

Seeking a highly motivated Backend Engineer (API) to enhance the technology framework and drive change. The role entails system evaluation, architectural enhancement, and integration of new technologies with existing systems. Requires proficiency in PHP and JavaScript/TypeScript.

Backend Golang Developer at Trust Wallet responsible for system design, feature development, infrastructure, team building, and interfacing with users.

Lead Software Engineer at JPMorgan Chase within the Strategy and Growth Office responsible for designing and building scalable front-end solutions using TypeScript, React, and React Native. Advocate for high code quality, provide feedback to teammates, and contribute to technical discussions. Collaborate in cross-functional teams and demonstrate adaptability and strong communication skills.

Capco is seeking a Principal Frontend Developer (React) to join their global technology and business consultancy, focused on the financial services sector. The role involves working on engaging projects with large banks to transform the financial services industry. The Lead Engineer will demonstrate expertise in engineering best practices, architecting services and systems, managing engineers, and making valuable contributions to products and teams. Skills in JavaScript, React, CSS, security standards, state management, testing frameworks, CI/CD, and mentoring are required.

Seeking a Senior Fullstack Engineer to design, develop, deploy, and operate business-critical features for Aircall's communication technology. Responsibilities include requirements analysis, code development, mentoring, and optimization of products and platforms. Must have 5+ years of backend development experience and 2+ years of frontend development experience.

Backend Engineer role at Writer, working on enterprise generative AI projects. Responsibilities include designing, developing, and maintaining backend systems using Scala, integrating AI models, optimizing performance, and collaborating with cross-functional teams. Requires a Bachelor's or Master's degree in Computer Science, 5+ years of experience in functional programming and Scala, and familiarity with cloud platforms and containerization technologies.

Seeking an Engineering Lead to join the Delight group at Flywheel, focusing on building products to support reps in delighting HubSpot's customers. Responsibilities include managing technical leads and engineers, coaching and mentoring teams, and contributing to hands-on coding.

We're looking for an Engineering Lead to join the Flywheel product family in the Delight group. The role involves managing technical leads and engineers, contributing in a hands-on coding role using Java, coaching and mentoring engineering teams, and working with product managers to define team's mission.

Join Remote, a global remote organizations solution, as a Backend Engineer working on building features, tools, APIs, and integrations using Elixir and Postgres. Enjoy complex challenges, impact on business growth, freedom in work organization, competitive salary, and a supportive work environment.

Looking for a Backend Developer with 2+ years of experience in developing complex microservices using NodeJS and NestJS. Must have a deep understanding of NodeJS, experience with TypeScript, and be familiar with REST API and GraphQL. Ideal candidate is a team player with good communication skills and a passion for new technologies.

Trustpilot is seeking a Software Engineer I for their API Platform Team. The role involves working in a cross-functional team to develop and maintain APIs, support data aggregation, and troubleshoot software. Ideal candidates have experience in full-stack web development, RESTful APIs, and component-based front-end development.

VALR is seeking seasoned backend software engineers with experience in building fast, accurate, scalable, and secure applications. Required skills include Kotlin, Java, REST API, Websockets, version control, containerisation, CI/CD, Google Cloud Platform, AWS, troubleshooting tools, cryptocurrencies, and alternative financial systems.

Backend Software Engineer at Amplemarket responsible for building the core of the AI-powered sales platform, solving diverse engineering problems, and designing state-of-the-art APIs. Collaborate with cross-functional teams to deliver new features and provide mentorship to other engineers.