Top Software Engineer Jobs in London

Build secure, scalable AI/ML platforms and applications to productionize research. Collaborate with AI researchers and data scientists, implement CI/CD and IaC, support experimentation environments, automate remediation, mentor junior engineers, and promote secure, responsible AI development practices.

Design, develop, and deliver frontend (React) and backend services; produce architecture artifacts; analyze large data sets and visualizations; improve code quality and system resiliency; mentor junior engineers; use enterprise-authorized AI-assisted development tools; contribute to engineering communities and continuous improvement of infrastructure platform services.

Develop and maintain data pipelines and business applications to support model risk governance. Implement model performance monitoring, workflow automation, and LLM-enabled solutions using Python and web frameworks. Emphasize data controls, testing, AI-assisted development tooling, and collaboration with cross-functional stakeholders to deliver secure, reliable analytics and efficiency tools.

As a Software Engineer at Legora, you will build and implement features for a web platform, maintaining code quality and mentoring junior colleagues.

The Software Engineer develops solutions for complex projects, leads application architecture planning, collaborates with teams, and mentors junior members, ensuring quality and efficiency in software delivery.

Design, develop, and deliver scalable software solutions for regulatory reporting in capital markets. Lead technical initiatives, design architectures (event-driven/cloud-native), implement data governance and reconciliation controls, mentor engineers, collaborate with business and tech stakeholders, and ensure auditability and compliance.

Design, build, and own backend pricing services end-to-end for Personal & Business products. Contribute to architecture, code reviews, reliability, scalability, observability, incident response, and collaborate with product, compliance and stakeholder teams to enable pricing features and experiments.

Lead technical design and hands-on development of secure Golang microservices. Define AI-assisted engineering practices, enforce DevSecOps and security standards, mentor engineers, own detailed designs, testing strategy, deployments, and operational reliability for OT/ICS-focused security products.

Technical lead for a Golang backend building secure, scalable microservices for OT/ICS security. Own detailed design, enforce engineering standards, drive AI-augmented development, DevSecOps, secure CI/CD, testing, and mentor engineers while remaining hands-on in code and architecture.

Design and build scalable serverless solutions on GCP using Node.js, React and Next.js. Map large PIM datasets to retailer formats, own microservices and deployments, champion TDD and observability, mentor engineers, and collaborate cross-functionally to deliver customer-focused sales enablement tools.

Lead backend technical work for Connected Devices Platform: design and implement scalable distributed systems (streaming, APIs, databases), ensure resilience, evolve architecture and processes, mentor teammates, and contribute to agentic AI development.

Design and build test infrastructure, automation, and tooling to validate ML software stacks and hardware; shape test architecture across CI pipelines, frameworks, simulators, emulators, and large ML workloads; mentor engineers and own complex validation projects.

Own and build public-facing APIs and scalable microservices for KYC and onboarding. Design event-driven architectures, address reliability/security, mentor engineers, participate in product strategy, and deliver partner-focused solutions.

Develop scalable and reliable solutions for FX risk management, improve data streaming for financial metrics, and lead technical initiatives.

Build and evolve core backend systems that review AI safety detections, identify ambiguous cases, automate triage, and close model feedback loops. Partner with product, design, and ML teams to own projects end-to-end, improve detection precision, and raise quality, operability, and engineering clarity across Samsara's Safety platform.

Work onsite with NATO customers to design and implement data-driven software solutions. Own end-to-end projects: architect systems, wrangle large-scale data, build web apps, collaborate with technical and non-technical stakeholders, and iterate rapidly in high-stakes environments.

Senior software engineer in B2B building scalable systems and APIs, mentoring junior engineers, leading design and production initiatives, debugging/monitoring production services, and driving cross-team technical solutions.

Lead and mentor an agile team to design, develop, secure, and operate scalable cloud-native applications using modern front-end tech and AI-assisted engineering practices; drive automation, code quality, resiliency, and operational stability.

Design and build scalable, secure backend services for high-traffic pricing and offers. Lead end-to-end feature delivery, ensure operational excellence (testing, observability, performance), mentor engineers, translate product and regulatory requirements into reusable technical solutions, and safely integrate AI/ML-enabled systems.

Lead development of integrations with regional banks and payment schemes for Latam & MEA, building scalable backend microservices, proposing technical designs, participating in code/design reviews, supporting on-call incident response, and collaborating with global teams to expand cross-border money movement capabilities.

The Senior Backend Software Engineer will design, develop, and maintain scalable backend services, optimize applications, build APIs, and collaborate across teams to improve user workflows and product efficiency.

The Senior Backend Software Engineer collaborates in teams to design and build scalable infrastructure systems, optimizing data-driven applications across sectors.

The Senior Front End Software Engineer will architect and develop user interfaces for data-intensive applications, mentor peers, and engage directly with users to improve product features.

As a Software Engineer on the Apollo platform, you'll build and maintain systems for software deployment, solve customer issues, debug complex problems, and collaborate across teams.

Backend Software Engineers at Palantir build scalable software solutions, collaborate across teams, and develop systems for data processing and storage, enhancing product capabilities.