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Software Engineer United Kingdom Jobs

458 Job Offers

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Senior Software Engineer (AI/Data)
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Codat seeks a Senior Software Engineer in London to build its Advisory Intelligence Platform, designing semantic, signal and reasoning layers that power AI-driven banking insights. Requires strong C#, Python and production data systems experience.
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Codat
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2027 Software Engineer Intern
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Join Anduril as a 2027 Software Engineer Intern in London. Work on real defense tech projects, triage issues, and build customer-facing solutions. Ideal for CS students graduating in 2028 with Python, C, or Java skills.
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Anduril Industries
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Senior Platform Software Engineer I
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Join Braze as a Senior Platform Software Engineer in London, running Valkey, Memcached and Elasticsearch at massive scale on Kubernetes. Build automation and observability tooling with Go, Python or Ruby.
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Braze
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Software engineer, agents (UK)
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WRITER seeks a Software Engineer in London to build scalable AI agent systems using Python, LangGraph, and cloud platforms. Requires 3+ years experience with distributed systems and agentic coding tools.
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Writer
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Senior/Staff Software Engineer (Autonomy)
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UFORCE seeks a Senior/Staff Software Engineer (Autonomy) in London to build mission-critical autonomy software for uncrewed surface vessels. Requires 8+ years in Java, Python, or .NET/C#, strong math foundations, and real-time systems expertise.
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UFORCE
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Software Engineer
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Join allpay Limited, a leading UK Fintech, as a Software Engineer in our R&D team. Use C#, .NET and SQL Server in an Agile environment. Enjoy great benefits including private healthcare and on-site gym.
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40000.00 - 50000.00 GBP / Year
Allpay
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Software Engineer
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Join allpay, one of the UK's fastest-growing Fintech companies, as a Software Engineer in our R&D team. Work with C#, .NET and SQL Server in an Agile environment, with great benefits including private healthcare and on-site gym.
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40000.00 - 50000.00 GBP / Year
Allpay
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2027 Software Engineer Intern
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Join Anduril's London team as a 2027 Software Engineer Intern and work on real defense technology projects. Ideal for CS, engineering, or physics students graduating in 2028 with Python, C, or Java skills.
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Anduril Industries
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Sr. Software Engineer - Customer Facing Applied AI
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Join Addepar as a Sr. Software Engineer on the Applied AI team in London. Build AI-powered agents end-to-end using Python and LLM APIs, working directly with clients to ship production-ready solutions.
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Addepar
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Software Engineer - Customer Facing Applied AI
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Join Addepar as a Software Engineer on the Applied AI team in London. Build AI-powered agents end-to-end using Python and LLM APIs, working directly with clients to ship production-ready solutions.
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Addepar
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Software Engineer - Customer Facing Applied AI
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Join Addepar as a Software Engineer on the Applied AI team in London. Build AI-powered agents end-to-end using Python and LLM APIs, working directly with clients to ship production-ready solutions.
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Addepar
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Sr. Software Engineer - Customer Facing Applied AI
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Join Addepar as a Sr. Software Engineer on the Applied AI team in London. Build AI-powered agents end-to-end using Python and LLM APIs, working directly with clients to ship production-ready solutions.
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Addepar
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Senior Software Engineer, AI Training - UK
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Remote contract Senior Software Engineer role evaluating AI coding agents like Codex and Claude Code. Requires senior-level TypeScript/Python experience and strong English for written feedback. $100-$200/hour, 10-20 hrs/week.
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G2i Inc.
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Software Development Engineer in Test
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Join Harmonic Security as an SDET in London, building cross-platform test frameworks for AI governance tools. Requires 5+ years SDET experience, TypeScript/Java/Rust skills, and CI/CD expertise. Competitive pay and equity.
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Harmonic Security, Inc
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Forward Deployed Engineer - Software Engineer - United Kingdom
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Join ElevenLabs as a Forward Deployed Engineer in the UK. Own end-to-end delivery for strategic partners, working hands-on with Python and APIs. Remote-first with London office option and regular customer travel.
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ElevenLabs
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Senior Software Engineer - Credit
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LemFi seeks a Senior Software Engineer in London to build high-reliability Go backend services powering credit products for underserved communities. Requires fintech and credit domain experience, distributed systems expertise, and a strong correctness mindset.
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LemFi
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Founding Senior Software Engineer (UK + Europe)
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Founding Senior Software Engineer role in London to architect core systems, integrate LLMs and ML into production, and build scalable APIs. Requires 3+ years scaling production systems, strong backend fundamentals, and cloud/CI/CD experience.
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Clipbook
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Software Engineer - Customer Facing Applied AI
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Join Addepar as a Software Engineer on the Applied AI team in Edinburgh. Build AI-powered agents end-to-end using Python and LLM APIs, working directly with clients to ship production-ready solutions.
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Addepar
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Staff Software Engineer - FMX
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Lead technical direction on Fanatics Markets platform in London. Staff-level role requiring deep React/TypeScript or Go/Java/Python expertise, architectural judgment, and end-to-end ownership of scalable systems.
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Fanatics Betting & Gaming
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Quantitative Software Engineer (DV Commodities)
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Quantitative Software Engineer role at DV Commodities in London building Python-based trading tools, fundamental models and analytics for energy markets. Requires 2+ years in quant finance, strong stats and data pipeline skills.
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DV Trading
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About the Software Engineer role

Explore the dynamic and in-demand world of software engineering jobs, where professionals design, build, and maintain the digital infrastructure that powers modern life. Software engineers, often synonymous with developers, are the creative problem-solvers and architects behind websites, mobile apps, operating systems, and complex enterprise systems. This career path blends analytical thinking with creative design to translate user needs and business goals into functional, efficient, and scalable software solutions.

The core responsibility of a software engineer is the full software development lifecycle. This typically begins with analyzing requirements and collaborating with product managers, designers, and other stakeholders. Engineers then design system architecture, write clean and maintainable code, and rigorously test their creations to ensure reliability and performance. A significant part of the role involves debugging issues, optimizing existing systems, and deploying updates. Many engineers also participate in code reviews to maintain quality standards and contribute to technical documentation. In today's agile environments, they often work in iterative cycles, continuously integrating and delivering new features.

Software engineering jobs can be specialized, but common areas include front-end (client-side), back-end (server-side), and full-stack development. Front-end engineers focus on user interfaces and experiences using technologies like HTML, CSS, and JavaScript frameworks. Back-end engineers build the server logic, databases, and application programming interfaces (APIs) that power functionality behind the scenes. Full-stack engineers possess skills across both domains. Other specializations include DevOps, security, data engineering, and cloud-native development.

Typical skills and requirements for these roles are both technical and soft-skills based. Fundamentally, proficiency in one or more programming languages such as Python, Java, JavaScript, C#, or Go is essential. Understanding data structures, algorithms, and system design principles is crucial. Experience with frameworks, databases (SQL and NoSQL), and version control systems like Git is commonly expected. As software is increasingly built for the cloud, familiarity with services from providers like AWS, Azure, or GCP is a valuable asset. Equally important are strong problem-solving abilities, attention to detail, and effective communication skills for teamwork. While many positions require a degree in computer science or a related field, a proven portfolio and relevant experience are also highly valued pathways into software engineering jobs.

The profession offers immense variety, with opportunities to build everything from life-saving health applications and financial platforms to immersive games and cutting-edge AI tools. It is a career characterized by continuous learning, collaboration, and the tangible impact of creating products used by millions. For those with a logical mind and a passion for building, software engineering jobs present a rewarding and future-proof career path with endless possibilities for innovation and growth.