Top Software Engineer Jobs in London

Build and maintain a full-stack analytics workflow application using Angular, Python, and FastAPI. Develop data pipelines and models with pandas and NumPy on Snowflake and Azure. Coordinate an offshore vendor team, manage delivery priorities and spending, use AI coding assistants, and translate business requirements into reliable enterprise software for stakeholders.

Develop and maintain OpenTelemetry SDKs, libraries and collectors; build instrumentation patterns for C# and Python across Kubernetes and non-Kubernetes workloads; embed observability standards; scale telemetry backends and pipelines; improve incident response through better telemetry and AI-assisted engineering; support platform and application teams and participate in on-call rotation.

Design, develop, test, debug, and document embedded software, firmware, and low-level drivers for resource-constrained and real-time environments. Collaborate with clients, project teams, and project managers on requirements, technical recommendations, planning, and delivery. Contribute to presentations, pitches, company strategy, and complex technical problem-solving while maintaining secure, high-quality engineering practices.

Design, build, test, deploy, and maintain backend services and frontend experiences for a football analytics platform. Own features from architecture through production operation, contribute to API and distributed-system design, participate in code reviews and engineering processes, improve code quality and architecture, and collaborate with Product and engineering teams to deliver reliable software.

Build and maintain Clojure-based software to accelerate medical device regulatory approvals. Work cross-functionally to deliver high-quality safety assessments, ship features quickly, and support product growth. Remote-first, collaborative environment with occasional in-person weeks in London.

Build and maintain production Golang backend services and data pipelines for an AI-driven investment platform. Design APIs, improve performance, reliability, and observability, debug production issues, and collaborate with AI and product teams to ship scalable, low-latency systems.

Lead the design, development, testing, deployment, and maintenance of scalable promotions and rewards software. Guide engineering teams, make architecture and technical trade-off decisions, troubleshoot production issues, improve operational excellence, conduct code reviews, mentor engineers, and influence engineering best practices. Collaborate with product leaders and stakeholders while participating in planning, documentation, and on-call support. Occasional travel to offices, conferences, events, meetings, and team-building activities is required.

Lead the technical direction and delivery of complex AI and software projects. Architect and maintain scalable production systems, define project roadmaps, oversee high-risk delivery, develop shared engineering libraries, and guide architectural decisions. Lead hiring, mentor engineers, advise customers, estimate workstreams, recommend technologies, and coach technical and non-technical stakeholders.

Own and ship front-end and full-stack product features from concept to deployment. Write well-tested code, improve frontend architecture and performance, maintain backend services and databases, design excellent UX, and lead technical customer engagements to translate feedback into product improvements.

As an Integrations Engineer, you will connect ERP systems with the BLP Digital platform through interface design and implementation, working with various protocols and supporting client integration efforts.

Develop embedded firmware and systems software for management controllers, ensuring the reliability and safety of production-critical systems. Collaborate closely with hardware teams.

As a Software Engineer at Prodia, you will optimize image/video models, build APIs, and improve distributed job scheduling, focusing on fast and reliable performance.

As a Deployed Software Engineer, you will implement technology with customers, gather feedback, and collaborate on product feature development, requiring travel to diverse locations.

As a Deployed Software Engineer at Arondite, you will implement technology with customers, travel to client sites, and develop tailored code for their needs while collaborating with the engineering team.

Develop software solutions to solve business problems at GSA Capital. A passion for technology is essential, finance background not required.

Drive platform reliability and developer efficiency by automating deployments, disaster recovery, monitoring/SLOs, incident response and runbooks. Collaborate with product engineers, perform capacity/performance/cost engineering, and promote GitOps and observability practices.

Responsible for designing and implementing authentication features in Go and TypeScript, enhancing Auth architecture, and collaborating with teams to improve user experience.

Own end-to-end development of scalable full-stack experiences for a real-money prediction and trading platform. Design and implement React, Next.js, TypeScript, and backend services; build experimentation, observability, and deployment capabilities; conduct code reviews; collaborate cross-functionally; and establish effective AI-assisted development standards while helping shape an early-stage product.

Lead end-to-end development of high-performance, fault-tolerant backend services for a CFTC-regulated exchange. Responsibilities include modernizing Java systems, building order processing and market data services, managing trading data and reporting pipelines, ensuring observability and regulatory auditability, participating in 24/7 on-call, and applying AI coding tools while maintaining security, correctness, and reliability.

12-month maternity cover Fullstack role owning features end-to-end across a dual TypeScript and C# backend. Build React microfrontend apps, work with event-driven AWS services (ECS/Fargate, Lambda, SQS, DynamoDB, DocumentDB), use AI coding agents to accelerate delivery, collaborate with product and customers, and shape architecture and developer workflows.

Own availability, performance, scalability and observability of mission-critical platform services. Build automation and tooling, participate in on-call rotations, lead incident response and postmortems, collaborate with product teams, and follow FinOps best practices to improve platform reliability and cost-efficiency.

Build and operate globally distributed data-transfer infrastructure for video, LiDAR, and sensor data at petabyte-per-day scale. Design parallelized pipelines using Flyte, Kafka, Azure, Python, and Terraform; implement reliability, observability, integrity checks, backfills, dashboards, alerting, and cloud-to-cloud networking. Collaborate with product and external partner teams, support evolving requirements, and participate in an out-of-hours on-call rotation.

Lead end-to-end delivery of complex backend features, mentor and upskill engineers, define engineering standards, participate in on-call rotations and incident escalation, conduct technical interviews, and drive improvements to development processes and tooling.

Intern will be paired with full-time engineers to build production-quality software, learn OCaml (and sometimes Python), and work on diverse projects from trading systems to language design under close mentorship.

Design, maintain, and scale backend services and APIs connecting Phantom Cash to blockchains. Build reliable event-driven systems with REST APIs, distributed-system patterns, retries, idempotency, and data consistency. Collaborate across teams, document decisions, mentor engineers, and improve engineering standards. The role also involves blockchain integrations, operational ownership, observability, and delivering dependable financial products in a remote crypto environment.