Top Backend Developer Jobs in London

The Back End Engineer will develop scalable solutions, manage API integrations, and contribute to complex projects while collaborating closely with the Finance Technology team.

Back-end engineer to build and scale NLPatent's AI-first patent research platform. Work with CTO and senior engineers to develop Python/Django services, containerized deployments, and relational database-backed features. Collaborate on integrating NLP/LLM capabilities and ensure production-ready systems. Hybrid role requiring three days onsite weekly.

The role involves developing and maintaining back-end systems for e-commerce platforms using .Net technologies, ensuring data delivery and optimizing application logic. Responsible for integrating API services and enhancing application performance.

As a Senior Product Engineer, you'll build AI-powered workflows, enhance billing infrastructure, and ensure the reliability of production backend systems while collaborating with a small cross-functional team in a fast-paced environment.

The Senior Backend Engineer will design and maintain backend services for CI infrastructure, migrate services from Python to Java, and improve developer productivity through enhanced testing and monitoring systems.

Build and maintain backend services for client CI infrastructure, drive migrations from Python to Java, improve local testing and observability, implement monitoring and logging, document services, and collaborate to enhance developer CI experience and automation.

The Senior Back-End Software Engineer will implement features, improve logic, write integrations with APIs, and contribute to design discussions within a startup environment.

As a Product Engineer at V7, you'll develop APIs, scale multi-modal data handling, manage infrastructure, and enhance AI model applications.

As a Backend Engineer at Rive, you will build and scale cloud services, develop APIs, maintain web applications, and improve system observability. You'll work collaboratively with customers and ensure code maintainability.

The Software Developer will enhance liquidity access, develop data feeds, and ensure software stability while collaborating across teams. Responsibilities include coding, testing, and production support.

As a Backend Engineer, you will design and implement APIs, maintain AWS infrastructure, manage databases, and work with cross-functional teams to enhance Pelago’s core services.

Join Databricks as a Staff Software Engineer focusing on backend development, responsible for building reliable, high-performance services and features for data platforms, tackling challenges in distributed systems and service architecture.

As a Senior Backend Engineer, you'll design, build, and run high-scale backend services for Spotify's experimentation platform, focusing on performance, reliability, and partnership with cross-functional teams to improve products based on data signals.

As a mid-level backend engineer, you will develop robust distributed systems and work closely in cross-functional teams to enhance user experiences with modern tools and practices.

Build and scale AI-backed backend services and prototypes using Node.js, Python, and Next.js. Own cloud infrastructure, deployment pipelines, latency optimization, cross-platform integrations, and collaborate with designers to deliver production-grade AI interfaces.

Develop high-quality backend software solutions, solving complex problems and collaborating with product teams on a scalable investment platform. Respond to technical issues in an on-call environment.

As a Backend Product Engineer, you will develop high-quality software solutions, collaborate with your team on technical decisions, and support product development. You'll manage scalability and maintainability of code for investor platforms, while responding to priority issues and driving innovation at Freetrade.

The Fullstack Engineer will focus on product software engineering, agents framework engineering, and R&D in AI and cybersecurity. Responsibilities include hands-on engineering, testing, and integrating AI Agents into existing systems.

Design, build, and maintain backend services for WalletConnect Pay. Collaborate cross-functionally, lead architecture decisions, and own services end-to-end.

The Senior Backend Engineer will develop scalable APIs and backend systems for a multimodal AI platform, focusing on design, deployment, and collaboration with various teams.

The role involves working on backend projects and collaborating across the stack, focusing on commercial solutions and project ownership. Candidates should have extensive experience and some leadership capability.

Join Encord as a Backend Software Engineer to enhance AI infrastructure, contribute end-to-end to product development, and solve complex problems using various technologies.

Lead and mentor a team developing low-latency trading systems using C++ and Python, focusing on risk management and system modernization.

You will build backend infrastructure for a digital energy platform, working on real-time systems and customer energy pipelines while adapting to business needs

Design and maintain scalable data pipelines, migrate data from Postgres to Clickhouse, and develop DBT models for reliable decision-making.