Software Engineer - Compiler United Kingdom Jobs

Join Roku as a Software Engineer in Cambridge, UK, and shape the future of regional TV platforms. You'll develop software for European and Australian markets using C++, C, and Python, collaborating with SOC vendors on HbbTV and certification processes. Ideal for early-career engineers with embedd...

Join Roku as a Software Engineer (Golang/Python) in Manchester, UK. Design and build large-scale, low-latency backend services and data pipelines powering sustainable advertising. Requires 3-5 years’ experience with distributed systems, Kubernetes, and streaming technologies like Kafka. Enjoy glo...

Join Roku’s UI team as a paid Software Engineer Intern in Cambridge, UK for Summer 2026. You’ll own a scoped project enhancing UI/SDK capabilities using TypeScript, React Native, or C++, with opportunities to build GenAI tooling for UI generation. Ideal for penultimate-year Computer Science stude...

Join a high-growth tech scale-up as an Applied AI Software Engineer in the UK. You will design and deploy production-grade agentic AI systems using Python, LangGraph, and LLM APIs. This role demands hands-on experience with Knowledge Graphs and autonomous workflows. Benefit from a 15% bonus while...

Senior Software Engineer (C++ / Algorithms) sought to build a high-performance visualization engine in the UK. This role demands strong C++ skills, deep computer science fundamentals, and a passion for solving complex algorithmic and graphical problems. Join a culture of technical excellence, foc...

Client-Facing Software Engineer role in London: join a well-funded startup to deploy software directly with end users. You’ll solve technical challenges, integrate data sources, and shape product development using Python, C++, or Java. This high-impact position offers high ownership, competitive ...

Join Microsoft’s MORSE team as a Senior Software Engineer in the UK, securing Windows, Azure, and virtualization technologies for over a billion users. You’ll perform security design reviews, code reviews, and vulnerability research, building mitigations and scalable bug detection systems. Requir...

Join Citi as a VP Full-Stack Senior Software Engineer to build 'Citi Assist', a GenAI assistant for global employees. You’ll own end-to-end features using Python, TypeScript, and React, working with data pipelines and cloud infrastructure (OpenShift/Kubernetes). Based in London, this role offers ...

Join Ovarro as a Level 1 Software Engineer in Sheffield, UK, and contribute to SCOPE, a leading SCADA platform. You’ll manage project elements, perform full lifecycle development, and resolve defects using Java scripting and C/C++. Ideal for problem-solvers with a technical background. Enjoy a co...

Join our Credit Risk Technology team in Belfast as a Java Software Engineer. You'll build critical risk management and stress testing solutions using Java, Spring, and Apache Flink. We seek a hands-on developer with GenAI tool experience (GitHub Copilot) and cloud expertise (AWS/Azure). Enjoy 27+...

Lead Engineer sought for a UK deep-tech firm pioneering clean energy solutions via advanced physics, simulation, and ML. You will architect, optimise, and maintain complex HPC systems in Oxford, leveraging expertise in Linux, MPI, and C++. Ideal candidates possess strong scripting skills and a pa...

Senior Software Engineer (Kotlin) sought by hyperexponential, a high-growth AI startup backed by a16z. Build scalable, cloud-native data systems on AWS using Terraform and Kotlin. You will design distributed analytics infrastructure and deliver customer-facing features for a $7 trillion insurance...

Senior Software Engineer sought by a London health-tech scale-up to scale a platform used by 100k+ customers. You’ll own problems end-to-end, working across Python backend, React/TypeScript frontend, and AWS infrastructure. Ideal candidates have 5+ years experience, actively use AI in their workf...

Software Engineer - Reliability role in North West UK. Design and build internal tools using Python, Golang, or JavaScript to enhance system performance and automation. Collaborate with platform and operations teams to improve stability and scalability. Enjoy hybrid working, generous pension, bon...

Join a greenfield AI startup in London redefining innovation discovery and protection. As a Senior Software Engineer, you’ll build production systems from scratch using Java, TypeScript, or Python, integrate with LLMs, and collaborate directly with founders. No legacy code or bureaucracy—just fas...

Senior Software Engineer (AVP) sought for Citi’s Margin Technology team in London. You will build high-impact financial systems using Java, React, and Python, with expertise in RESTful APIs, Spring, and TDD. Ideal candidates have investment banking experience and knowledge of AWS, Kafka, or Kuber...

Principal Technical Safety Engineer role in Warrington, UK, blending software development with risk management. You'll lead QRA, CFD, and RAM studies while maintaining and developing internal software using Python, C#, and .NET. Requires 8+ years in technical safety and full-stack skills. Benefit...

Lead Software Engineer (VP) sought for Citi’s Margin Technology team in London. Drive innovation in global finance by building scalable, automated platforms using Java, Python, or React. Requires expertise in microservices, RESTful APIs, and cloud technologies like AWS. Enjoy hybrid work, 27 days...

Principal Software Engineer sought for Citi’s Margin Technology team in London. Design and build high-scale distributed systems using Java, Python, or React, with AWS, Kafka, and Kubernetes. Drive innovation in global finance, shaping automated platforms with a focus on clean code and TDD. Benefi...

Senior Software Engineer - Margin Technology at Citi in Belfast. Build high-impact financial systems using Java, React, and Python, with RESTful APIs and TDD. Join a global team solving complex problems at massive scale. Enjoy 27 days leave, bonus, private medical, and hybrid work.