Latest software engineer Jobs

Lead Software Engineer

Lead a product squad in technical decision-making and architectural direction, driving AI-powered feature development using LLMs, RAG, and agent frameworks within a regulated financial services environment. Mentor engineers while delivering production-grade, full-stack systems on AWS with Node.js, Python, and React. Collaborate across platform teams to build reusable, compliant-by-design solutions that integrate cutting-edge AI tooling across the SDLC.

Aveni United Kingdom

Remote Permanent

Senior Software Engineer

Design and build scalable, cloud-native systems and user interfaces that integrate LLM-powered capabilities into financial workflows. Work closely with AI and product teams to deliver production-ready agentic systems on AWS. Focus on event-driven microservices, React front-ends, and robust APIs using Node.js and TypeScript.

Aveni United Kingdom

Remote Permanent

Staff Software Engineer, AI Reliability Engineering

This role focuses on ensuring the reliability and resilience of large language model serving systems at scale. You'll design service level objectives, build observability tooling, lead incident response, and collaborate across teams to strengthen critical infrastructure paths—from API layers to accelerators. The position demands a systems-thinking engineer passionate about robustness, safety, and cross-team partnership in high-stakes AI environments.

Anthropic London, United Kingdom £325,000 – £390,000 pa

Staff Software Engineer, Inference

This role involves designing and maintaining large-scale, performance-sensitive distributed systems that serve Claude to millions of users globally. The engineer will work across the full inference stack, building intelligent routing, autoscaling, and deployment systems for AI models running on diverse accelerators across multiple cloud platforms. The position emphasizes real-time system resilience, compute efficiency, and close collaboration with research teams to enable next-generation model development.

Anthropic London, United Kingdom £325,000 – £390,000 pa

AI Software Engineer – C# .NET

This role involves designing and integrating AI-powered features into established .NET SaaS products, with a focus on production-grade implementation of LLMs, prompt engineering, and structured outputs. The engineer will prototype rapidly while ensuring robustness, evaluation, and alignment with business needs, working closely with product and engineering teams. Key aspects include building reliable AI services, evaluating LLM performance in real-world scenarios, and advancing AI adoption across the organisation.

Apache Associates Sheffield, United Kingdom £50,000 – £60,000 pa

AI Software Engineer – C# .NET

This role involves developing production-grade AI features within established .NET applications, focusing on practical integration of LLMs, prompt and context engineering, and structured output validation. The engineer will prototype and ship AI capabilities rapidly while ensuring robustness, accuracy, and alignment with business needs. Emphasis is placed on real-world evaluation, collaboration with product teams, and sharing AI expertise across the engineering organisation.

Apache Associates Newcastle upon Tyne, United Kingdom £50,000 – £60,000 pa

AI Software Engineer

This role involves developing and shipping full-stack features in a mature, business-critical ERP/SaaS product suite with a back-end focus in C#/.NET. The engineer will integrate AI tooling into live products, work across SQL Server and PostgreSQL databases, and collaborate closely with product teams to solve real business problems. A strong emphasis is placed on practical AI integration, code quality, and iterative development within an established codebase.

Searchability Nottingham, United Kingdom £60,000 – £80,000 pa

Staff Software Engineer - Machine Learning

This role involves leading the technical strategy for ML/AI use cases in the UK, coordinating ML engineering efforts across multiple teams, and providing technical consultancy. You will drive MLOps standards, collaborate with data science teams, and represent Capital One in external ML/AI forums.

Capital One Bunhill, London, United Kingdom

Hybrid Permanent

AI Software Engineer

Design and implement AI-driven software solutions in a secure environment, working with advanced technologies and deploying systems that solve complex client challenges. The role involves collaboration with cross-functional teams and may require occasional travel to client sites. Focus on innovation, scalability, and robustness in AI model integration and deployment.

Searchability NS&D London, United Kingdom £45,000 – £80,000 pa

Remote Permanent Clearance Required

AI Software Engineer - eDV Cleared

Design and develop AI-driven software solutions for national security applications, working within secure environments and collaborating with government stakeholders. Focus on delivering robust, scalable systems using modern software engineering practices. The role involves frequent travel to client sites across the UK.

Searchability NS&D London, United Kingdom £65,000 – £100,000 pa

Hybrid Permanent Clearance Required

TypeScript Software Engineer

This role involves building a modern FinTech SaaS platform from the ground up using TypeScript, Node.js, and React within a cloud-native, AI-first engineering environment. You'll work across the full stack to develop scalable microservices and contribute to architectural decisions in a collaborative team setting. The role emphasizes innovation through AI-assisted development and modern cloud practices on AWS and Azure.

Noir London, United Kingdom £40,000 – £65,000 pa

Hybrid Permanent

Senior Software Engineer (Infrastructure)

This role involves building and maintaining cloud-native infrastructure for a modern core banking platform. The engineer will develop automation, observability, and orchestration tools to support scalable deployment and management of services, working closely with engineering and SRE teams. Focus areas include CI/CD, disaster recovery, and integration with data and streaming platforms in high-consistency environments.

Thought Machine London, United Kingdom

Hybrid Permanent

Lead Software Engineer

The Lead Software Engineer will design and implement software solutions for underwater robotics applications, working closely with multidisciplinary teams to deliver complex projects. Responsibilities include leading technical innovation, ensuring software quality, and mentoring junior engineers.

Saab Fareham, United Kingdom

On-site Permanent Clearance Required

AI Software Engineer - Bruin

Develop and deploy AI-powered applications using Python, React, and AWS within a financial services environment. Focus on building generative AI solutions, including LLMs, RAG pipelines, and agentic workflows, while integrating AI capabilities into existing systems. Work collaboratively with technical and business teams to translate open-ended problems into production-ready software.

eFinancialCareers London, United Kingdom

Hybrid Contract

Graduate Technical Engineer (Software Engineering Pathway) x5

This role involves troubleshooting and supporting enterprise software systems while gaining hands-on experience with AI, cloud technologies, and programming languages like Python and JavaScript. You'll work alongside experienced engineers, contribute to system improvements, and develop skills across a range of modern tech platforms. The position offers a structured career pathway into software engineering within a learning-focused environment.

Jam Management Consultancy ltd Bracknell, Berkshire, United Kingdom £35,000 – £38,000 pa

Hybrid Permanent