Top Software Engineer Jobs in London

Manage and scale Kubernetes clusters, automate infrastructure, optimize performance, maintain blockchain nodes, and improve system reliability while collaborating with product teams.

Design, build and optimise Python-based AI applications and data storage solutions. Collaborate with clients and teams, enforce code quality, CI/CD, testing practices, and deliver scalable production systems across cloud environments while travelling to client sites.

Develop reliable cloud services on the hyperscaler platform, contributing to cloud infrastructure, databases, and monitoring systems. Must write reliable code with team-oriented skills.

Build and own end-to-end cloud partner integrations: design architecture (auth, multi-tenancy, data movement), implement backend systems, run and be on-call for infrastructure/CI/deployments, work with external platforms and internal teams, and write design docs to set team technical direction.

As a Senior Software Engineer, you will develop secure, scalable medical imaging platforms, architect distributed systems, and work with AI diagnostic tools.

As a Principal Forward Deployed Engineer, you'll deploy JetBrains Central in enterprise environments, implement AI governance, mentor teams, and advise customers on AI-native development best practices.

Lead and deliver iOS features, improve architecture and code quality, review and mentor engineers, plan projects, ensure operational readiness, collaborate across teams, and participate in hiring and team growth.

As a Senior Software Engineer, you'll improve code architecture, lead projects, and collaborate with teams to enhance productivity and technical execution.

Seeking an experienced engineer to develop and scale Lovable's software platform for millions of users, covering full-stack responsibilities from architecture to deployment.

Design, build, and maintain automated test frameworks for embedded and connected medical devices. Define test plans for firmware, device drivers, APIs, connectivity, OTA updates, and WebUI. Integrate tests into CI/CD pipelines, collaborate with hardware/firmware teams, debug system-level issues, and validate device performance under real-world conditions. Must commute to London office 3–5 days/week.

The Senior Software Engineer will develop trading software, collaborate with trading teams, and ensure clean, testable code using agile methodologies.

Build, test and ship growth-focused user journeys and subscription funnels across web and app. Design and run experiments, implement instrumentation and tracking, own features end-to-end, collaborate with product/design/data, and improve CI/CD, testing and release workflows to increase conversion and engagement.

Lead growth-focused engineering work: implement and maintain ad tracking SDKs/MMPs, build tracking/tag manager setups, design and ship full-stack growth features, integrate CRM/lifecycle tooling, build internal automation tools (Python/Node), and collaborate with Growth, Marketing and Data to run experiments and A/B tests.

The Senior Software Engineer will enhance the reliability of AI systems, implement monitoring frameworks, manage failover systems, and lead incident responses, focusing on serving infrastructures for large language models.

Work across the full software lifecycle to build robust margin and collateral solutions. Collaborate with product teams and users, design and implement RESTful APIs, apply TDD and clean code, and handle data structures, algorithms and SQL. Adapt quickly in a fast-paced, changing environment and contribute to a strong global engineering culture.

The Lead Software Engineer will drive technical excellence, mentor engineers, shape architecture, and lead high-impact projects while remaining hands-on in development.

Design, build, and operate foundational, multi-cloud platform systems. Own platform strategy, make build vs. buy decisions, write design docs and code, ensure reliability at scale, document decisions and run architectural forums, and improve operational maturity for enterprise-grade SaaS platform services.

Lead design and implementation of Astronomer’s multi-cloud platform infrastructure. Own platform strategy, build production-grade distributed systems (Kubernetes/Go), make architecture decisions, document designs and postmortems, and drive cross-team technical choices to scale a SaaS/PaaS offering for enterprise customers.

Design, build, and own Astronomer’s multi-cloud platform infrastructure. Lead architecture and implementation of production-scale distributed systems, operate Kubernetes clusters under load, write design docs and postmortems, make tradeoff decisions, and drive cross-team technology choices to improve platform scalability, reliability, and developer experience.

Lead design and implementation of high-performance embedded and real-time C++ software, including HAL, device drivers, and data acquisition. Define embedded architecture and technical strategy, mentor engineers, ensure software quality via code review and testing under IEC 62304, collaborate with electronics/FPGA teams for hardware bring-up and system integration, and contribute to risk management and documentation per ISO 14971 and QMS. Advocate AI tools to improve engineering efficiency and communicate architecture decisions to clinical, product, and regulatory stakeholders.

Design, build, and support treasury applications for securities lending, repo trading, FX hedging, and collateral management. Collaborate with Treasury, Portfolio Managers, and global teams to deliver microservices on AWS with Docker/Kubernetes, provide level 3 support, improve firmwide frameworks, and mentor junior engineers within an Agile environment.

Lead and grow an SDET team building reliable, scalable cloud storage solutions. Provide technical leadership, design and review architectures, plan sprints, implement deterministic functional and non-functional test suites in CI/CD/CT pipelines, collaborate on product specs, hire and mentor engineers, and continuously improve processes and systems.

Own quality for the humanoid software platform: test the operator console, inference infrastructure, and backend services. Design and implement automated CI/CD test suites, run contract/integration/performance validations, define quality metrics and strategy, and document tests and processes.

Own software serviceability for humanoid robots: design and validate diagnostics, firmware/bootloader recovery, remote-diagnostics content, tooling for fast fault localization, and act as Services interface to R&D. Validate OTA, calibration, and repair procedures and support new service introductions.

Build and operate a petabyte-scale data platform and Capability Factory: ingest, curate, preprocess, and version robot telemetry; design scalable batch/stream pipelines, orchestration, compute and storage; collaborate with ML teams on MLOps and evaluation workflows; build data warehouse and BI dashboards; ensure data quality, access control, and production ownership including on-call incident triage.