Top Software Engineer Jobs in London

Lead all Crypto related engineering including spot and derivatives exchanges. Architect, implement, and maintain systems for Alpaca Crypto. Design and build high-performance matching engine, regulatory reporting, banking integrations, and more. Remote position reporting to Head of Crypto initially and CTO later.

As a Senior Backend Engineer at HubSpot, you will write and ship production code with meaningful impact, build new features, collaborate with cross-functional teams, and contribute to company growth. This role requires backend development experience with a focus on users and technical challenges.

As a Senior Software Engineer, Backend at HubSpot, you will write and ship production code with meaningful impact, collaborate with cross-functional teams, and contribute to company growth. The ideal candidate has backend development experience, focuses on user needs, and can solve technical problems with creative solutions.

Depop is seeking a Senior Backend Software Engineer to manage multiple services at the core of Depop's architecture. Responsibilities include collaborating with cross-functional teams, producing high-quality code, supporting applications, and contributing to continuous improvement initiatives.

Join our team as a Senior Backend Developer working on Core APIs at Octopus Energy. Help shape a more sustainable future in the energy industry by developing cutting-edge tools and frameworks. Tackle challenging technical problems and collaborate with a global engineering team. Python, Django, GraphQL, and API security are key components of this role.

Join our team as a Senior Backend Developer at Kraken, a technology company focused on creating a smart, sustainable energy system. Solve complex design and technical challenges in the UK utilities market using Python, Django, and other technologies. Work on domain modelling, processing large amounts of data, and contributing to a greener future.

Seeking an experienced Python developer with a background in MongoDB to help build a fully managed MongoDB solution based on Juju. Key responsibilities include operating and managing MongoDB clusters, infrastructure deployment automations, and ensuring quality and automated testing. Remote-first culture with competitive salary and impactful open source projects.

Seeking a Senior Cloud Developer experienced in cloud development, reverse engineering, and collaboration. Responsibilities include architectural design, cross-team collaboration, application development, code reviews, and participation in the software development life cycle.

Seeking a talented Senior Fullstack Engineer to design, develop, and ship high-quality software solutions using the tech stack provided. Responsibilities include taking ownership of key components, influencing technical direction, and mentoring junior engineers. Company offers flexible working hours, hybrid work setup, generous parental leave, and holiday allowance.

Senior Software Engineer position at Edenred PayTech involving design, development, and mentoring junior engineers in a dynamic and multicultural environment. Responsibilities include platform enhancements, technical leadership, and ensuring quality standards.

Looking for a Senior Front End Software Engineer to contribute to the improvement and maintenance of innovative DApps in the NEAR ecosystem. Responsible for building a blazing-fast frontend and an SDK for a cross-chain DEX utilizing web3 technologies. Must have 5+ years of experience in software engineering and a Bachelor's degree in Computer Science or a related field.

Seeking a Senior Full Stack Software Engineer to develop digital products, write high-quality code, and ensure best practices. Responsibilities include delivering software applications, designing solutions, and mentoring junior engineers. Must have experience with TypeScript, JavaScript, AWS, and PHP.

The Senior Software Engineer II, Backend at HubSpot's Flywheel Product Team is responsible for writing and shipping production code with user and business impact. They collaborate with cross-functional teams and work on complex problems related to data management and user experiences.

Hiring for a Senior Software Engineer (Python) at Gousto to deliver scalable, distributed, cloud-based systems and scale event-driven microservices architecture. Responsibilities include caring for the platform, ensuring quality/performance, and supporting engineers. Requires experience in Python backend systems, AWS/GCP cloud services, REST APIs, testing, CI/CD, and familiarity with Domain Driven Design and Event-Driven architecture.

Founding API Software Engineer role at Writer, a full-stack generative AI platform, responsible for developing cutting-edge backend services and API solutions. Key responsibilities include ensuring API performance, security, and reliability, designing and maintaining high-performance APIs, managing API deployments, collaborating with stakeholders, and troubleshooting API issues. Requires Bachelor's or Master's degree in Computer Science, 5+ years of API development experience, strong expertise in Kong Konnect and Terraform, and excellent problem-solving skills.

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.

Freelance Senior Software Engineer role at Red Badger, working on full stack greenfield build projects using TypeScript, React Native, and Azure. Hybrid working model with 2 days in person in London. Responsible for high-quality digital product delivery and collaborating with cross-functional teams. Must have expertise in modern development practices and agile ways of working.