Top Software Engineer Jobs in London

Design, build, and maintain scalable backend systems and APIs using Go/Python. Integrate enterprise services, data pipelines, event-driven tech (Temporal, Kafka), and LLMs (OpenAI, Gemini, Claude). Ensure security, high availability, multi-tenant SaaS deployments, and improve engineering practices across the stack.

As a Software Engineer at Euphoric, you'll develop AI-driven features, collaborate across the tech stack, maintain quality code, and contribute to an innovative benefits platform.

Design, build, and own disposable isolated microVM sandboxes and related runtime infrastructure for AI coding agents. Improve reliability, performance, and security across macOS, Windows, and Linux; lead architecture, mentor engineers, engage open-source communities, participate in on-call rotations, and collaborate with Product and adjacent teams.

Build end-to-end systems to capture voice, photos, and video and automatically finish reports; design architecture for unstructured data and AI integration; ensure seamless offline/online behavior; evolve the workflow builder; engage with users, ship features, and iterate on product impact.

Lead and deliver large-scale distributed infrastructure projects from ambiguous requirements to production. Make architecture decisions, ensure reliability, scalability, and security, collaborate with research/product teams, set technical standards, improve operational processes, and mentor engineers.

Lead application and cloud/container security across the SDLC: threat modeling, architecture reviews, security code reviews, DevSecOps automation, vulnerability management for Kubernetes/container images, incident response, detection engineering, and compliance with OWASP/NIST/ISO standards.

As a Senior Software Engineer, you will design, develop, and enhance CDP's digital platform, mentor engineers, and ensure high-quality solutions.

Embed with mission teams to solve complex engineering problems, coach engineers, champion AI adoption, build platform tooling, and design reliable cloud-scale systems focused on high-performance front-end experiences.

Design, build and run scalable, maintainable services in the cloud. Own end-to-end application development, collaborate across product and design, emphasise observability, testing, reliability and high-performance search, pricing and booking systems.

The Senior Software Engineer at Carbon Re will develop cloud architectures, deploy workloads in customer environments, guide junior developers, and improve existing systems through collaborative practices and CI/CD pipelines.

Design, develop and maintain AI-powered software applications. Collaborate with teams, troubleshoot software, and integrate AI algorithms. Stay updated with technology trends.

The Staff Software Engineer will design and implement a modern cloud-native healthcare platform using Elixir, enhancing access control, system reliability, and workflow efficiency.

The Head of Engineering directs the custom development of proprietary products, leading a product engineering organization to deliver secure, reliable software solutions while meeting regulatory obligations.

Design and optimize performance-critical systems, focusing on streaming, networking, and storage. Collaborate with teams, driving continuous improvement and technical excellence.

As a Senior Software Engineer, you will design, build, and maintain scalable software solutions using Node.js and TypeScript, while mentoring junior engineers and ensuring product reliability.

As a Software Engineer, you'll transform systems, design high-performance distributed systems, and contribute to engineering growth and success.

As a Software Engineer, you will develop and maintain API products, implement features, and ensure code quality while understanding customer needs and improving products.

The Senior/Staff Software Engineer, AI will develop AI-powered features, design backend services, and optimize workflows, ensuring integration and user experience. The role requires collaboration across teams to innovate and improve AI applications.

Build and maintain Dialpad's native Salesforce integration and other integrations, design architecture, write clean modular code with unit tests, participate in code reviews, mentor engineers, support ETL pipelines, and contribute to Agentic AI initiatives to enable real-time automations and data flows.

The Senior Software Engineer will build and maintain back-end and front-end applications using Node.js and React, optimizing them for performance and user experience while integrating AI-driven workflows.

Responsible for managing the lifecycle of accelerator capacity, developing AI infrastructure, and driving cross-team initiatives while ensuring operational excellence and mentoring engineers.

The Staff Software Engineer will enhance Kubernetes scheduling for multi-cloud environments, design core services, ensure reliability, and collaborate with various teams to optimize performance.

Rover seeks a Lead/Senior Software Engineer with 7+ years of experience, specializing in frontend technologies like ReactJs and Python. Responsibilities include building customer-facing products, mentoring team members, and promoting engineering best practices. The role includes collaboration on projects and a commitment to inclusivity and diversity in the workplace.

As a Senior Software Engineer, you will design architecture, lead AI-driven development practices, mentor engineers, and optimize systems for high availability and performance.

Design, build, test, and operate Astronomer’s production platform at scale. Own CI/CD, deployment, reliability, and observability practices; collaborate cross-functionally to set platform standards, participate in incident management, and document systems and processes.