Top Software Engineer Jobs in London

Lead the engineering work for search solutions in the merchant dashboard, involving hands-on development, code production, and ensuring system maintainability for efficient operation.

As a Software Development Engineer II, you will develop and maintain web services for navigation solutions, ensuring reliability and performance while collaborating with the team.

The role involves developing scalable backend services, AI-enabled tools for marketers, and ensuring collaboration in real-time in a remote setting.

As a Software Engineer, you'll build reliable systems, drive innovation in autonomous squads, and mentor within a collaborative engineering community.

As a Senior Software Engineer at Rewardful, you'll improve infrastructure, optimize performance, implement scalable solutions, and develop new features for our SaaS affiliate management platform.

As a Software Safety Engineer, you will assess medical AI systems, ensure compliance with safety standards, and collaborate with multidisciplinary teams to improve regulatory processes.

As a Senior Software Engineer, you'll shape product features, write backend and frontend code, improve infrastructure, and support integrations in a collaborative environment.

Design, build, and maintain cross-platform desktop apps, SDKs, APIs, and IDE plugins (Windows/Mac) using Java and Python. Collaborate with UX and hardware teams to deliver high-performance developer tools, improve workflows, and drive engineering quality, performance, and scalability.

Design, build, and maintain scalable CI/CD pipelines and automation tools; develop scripts for provisioning/configuration; collaborate with global teams to improve DevOps practices; run workshops; document platforms; and implement monitoring, logging, and security hardening across data centers and cloud environments.

Design, implement, and optimize real-time embedded firmware for DSP cores and MCUs (RISC-V/Arm). Develop drivers, RTOS components, bring up hardware, create test strategies, use JTAG/trace tools for debugging, collaborate cross-functionally, and produce documentation and code reviews to ensure performance, determinism, and producibility.

Design, implement, and optimize real-time embedded firmware for DSP cores and MCUs (RISC-V/ARM). Bring up hardware, develop drivers and RTOS components (e.g., Zephyr), build and run tests including hardware-in-the-loop, use JTAG/SWD and trace tools to debug and profile, and collaborate cross-functionally while producing documentation and participating in code reviews.

The Senior Software Engineer will lead projects, improve code architecture, ensure operational readiness, and collaborate with teams while contributing to technical execution and mentorship.

As a Senior Software Engineer at Gousto, you will design scalable solutions, mentor engineers, lead key projects, and ensure system reliability while collaborating closely with stakeholders.

As a Principal Software Engineer, you'll lead backend and IoT engineering for Defence projects, ensuring high-quality software delivery while mentoring engineers and implementing robust CI/CD processes.

Seeking a Senior Software Engineer with extensive experience in digital products to lead, design, and advise on client projects, emphasizing architecture and agile practices. Must collaborate with teams and clients to deliver high-quality solutions.

Lead the development of AI/ML infrastructure for simulations, collaborating with teams on model scaling, system design, and mentoring junior engineers.

The role involves open-sourcing models and maintaining libraries, optimizing performance, and collaborating with the open-source community. Requires expertise in machine learning and strong programming skills.

Lead Staff Software Engineers manage projects and teams, guiding technical direction and strategy while contributing to software development at scale.

Lead technical design and architecture for Verifone's global payment gateway backend. Drive microservice architecture, ensure security and scalability, mentor engineers, own system reliability and performance, and remain hands‑on with Java/Spring Boot services and MongoDB in a high‑availability payments environment.

Design, build, and operate high-performance, secure backend microservices for a global payment gateway using Java and Spring Boot. Collaborate with platform and infrastructure teams to ensure scalability, reliability, and security across regions; implement APIs, data models (NoSQL/MongoDB), testing, and CI/CD practices.

This role involves enhancing Firefox development workflows, mentoring team members, and improving integration and automation processes while working in a distributed team.

As a Backend Developer at Apron, you will work on feature development, collaborate with teams, implement payment integrations, and design scalable systems.

As a Junior Software Engineer, support development and reliability of Fogsphere’s AI platform, focusing on Python, JavaScript, CI/CD, and infrastructure reliability.

Lead a small team to develop and maintain cloud-based services using JavaScript, TypeScript, and Node. Oversee project delivery, collaborate with cross-functional teams, ensure data security, and optimize performance.

The Senior Software Engineer I will design and deliver high-quality software features, advocate for best coding practices, mentor others, and contribute to an Agile team's success at Rightmove.