Top Backend Developer Jobs in London

Freelance Senior Software Engineer with full-stack TypeScript experience needed for a 6-month project at Red Badger. Responsibilities include providing engineering expertise in a cross-functional team, using modern development practices, and coaching peers.

Senior Software Engineer responsible for improving DoiT Navigator product and implementing new features in Flexsave. Collaborate with product managers and developers from other teams, participate in product-making decisions.

Join dunnhumby as an Associate Software Engineer and work on building the world's first omnichannel retail media portal. Collaborate with a talented team on a tech stack including React/JS, .NET/C#, and Google Cloud. Enjoy a comprehensive rewards package and personal flexibility with thoughtful perks like flexible working hours.

Figma is seeking a Software Engineer to collaborate with designers, PMs, and other engineers to plan features and build a high quality product. Responsibilities include building, documenting, and maintaining tests, features, and infrastructure. This role requires 3+ years of professional experience and fluency in programming languages such as Typescript, React, and Ruby.

Senior Software Engineer - Front End role at Doccla, responsible for building the Virtual Ward and clinician portal to improve clinical outcomes for patients across the UK. Requires self-motivation, experience with Elm language, and strong UX/UI design skills. Experience with web components and quality management system IEC-62304 is a plus.

Senior Software Engineer role at Ophelos, responsible for building a robust and scalable API platform to empower clients and markets to self-onboard and integrate with Ophelos’ services. Tech stack includes Ruby on Rails 7, Hotwire, View Components, Sidekiq, PostgreSQL, Redis, Serverless, AWS. Responsibilities include designing and implementing software features, collaborating with a multi-disciplinary team, building high-volume data ingestion APIs, leading key projects, mentoring team members, and innovating to make an impactful difference in society.

Senior Software Engineer role at Buyagift and Red Letter Days focusing on front-end development for search and recommendations. Responsibilities include leading full-stack development, enhancing user journeys, and collaborating with the team and stakeholders.

Looking for a Full-stack Software Engineer to join the Experiences Squad in London. The role involves enhancing the Yieldify Conversion Platform and collaborating with a high-performing engineering team to deliver new features regularly.

As a Fullstack Software Engineer at Amplemarket, you will work on building a sales platform using technologies like Ruby on Rails, React, PostgresQL, Elasticsearch, and Redis. You will collaborate with different teams to develop new features and ensure a scalable product that meets customer needs. The role requires designing and maintaining complex systems, debugging production issues, and following best practices.

Seeking a talented and experienced Senior Full Stack Engineer to build high-quality web & desktop native applications using modern technologies. Responsibilities include developing and maintaining applications, writing clean code, participating in code reviews, ensuring timely feature delivery, on-call support, mentoring junior engineers, and collaborating with cross-functional teams.

Senior Software Developer role with primary responsibilities in solving current problems, planning, designing, and testing software systems. The role involves evaluating and responding to customer needs, maintaining application architecture, and collaborating with cross-functional teams. Requires strong technical experience in web technologies, .NET, C#, and Agile processes.

As a Full-Stack Software Engineer at Blueground, you will be responsible for architecting, designing, and building new services using a variety of technologies. You will participate in Agile ceremonies, code services and APIs, write unit tests, automate tasks, and collaborate with cross-functional teams.

As a Full Stack Engineer at EDITED, you will be responsible for building new product features, optimizing performance, fixing bugs, and collaborating with product and design teams to enhance user experience. You will work primarily with React and Python to develop systems for client-facing features and internal tools.

This developer role is within a small, dynamic team working on the NIRO Portfolio Management System using C#, Typescript, and Angular. The candidate should have strong knowledge in at least one asset class and experience with front-end development using Angular.

As a Senior Software Engineer, you will be developing innovative applications using AI capabilities to enhance user experiences and streamline communication. Collaborate with cross-functional teams to develop key features, benchmark, analyze, and optimize web applications for scalability and security.

Develop and optimize product features, collaborate with product managers, interaction designers, and backend engineers, responsible for front-end infrastructure and component abstraction.

Seeking a Senior Frontend Engineer to lead the technical implementation of a carbon accounting platform, focusing on building enterprise applications and delivering excellent user interfaces for customers. Join a team passionate about decarbonization and sustainability.