Software Engineer - Integrations United Kingdom Jobs (On-site work)

Principal Software Engineer sought for a Luton-based role supporting mission-critical embedded systems. Requires ISTQB knowledge, strong test automation skills (Python, C++), and active SC Clearance. You will create automated test scripts, perform integration and regression testing, and collabora...

Join a top-tier financial tech firm in London as a C++ Software Engineer. You’ll build high-performance, large-scale systems with a focus on low latency and scalability, using C++ and Python. This role offers real ownership in a microservice architecture, collaborating with elite engineers on nex...

Join a top-tier finance firm in London as a Python Software Engineer. You’ll build high-performance, scalable data platforms using Python, RESTful services, SQL, and big data tools like Spark and Kafka. Collaborate with elite technologists on advanced financial systems, influencing design and the...

Join Amazon as a Software Development Engineer in London, Cambridge, or Edinburgh. You will design scalable, cloud-native solutions using Java, Python, or C++, impacting millions of customers globally. Ideal for students or recent graduates in STEM with strong algorithmic skills. Benefit from a c...

Join a top-tier London fintech as a **C++ Software Engineer**, building high-performance, large-scale systems. You’ll design low-latency platforms and microservices, leveraging **C++** and **Python** in a deeply technical team. This role offers real ownership over system architecture and developm...

Senior Digital Assets Software Engineer sought by Optiver to build and evolve high-performance trading systems for cryptocurrency markets in London. Leverage strong C++ skills and exchange integration experience (Binance, Deribit, OKX) to shape a new platform. Collaborate directly with traders an...

Join a Great Place to Work® certified company! Parkingeye seeks a **Software Engineer** to build Azure cloud-first .NET applications in Chorley, UK. You’ll drive DevOps culture, design secure architectures, and leverage deep .NET Core, SQL Server, and serverless tech. Enjoy an innovative, collabo...

Plaid is hiring a Software Engineer to join their London team, building innovative consumer products and APIs that shape the future of finance. This backend-leaning full-stack role requires 2-5 years of experience with large-scale systems and a passion for solving complex problems. You will partn...

Backend-focused Software Engineer needed to modernize Phoenix, our internal platform. You'll own delivery from concept to completion, using Python, AWS, and TypeScript. Based in Sunderland with a salary of £35k-£38k, this role offers free parking, generous holidays, and a supportive team culture....

Join Perspectum in Oxford as a Software Engineer to design and develop high-quality applications using AI-assisted tools. You’ll collaborate with design and testing teams, ensuring scalable, secure solutions on AWS. Embrace AI in your workflow while owning code quality. Ideal for degree-holders w...

Principal Embedded Software Engineer sought to lead embedded systems architecture and technical delivery in Bradford, UK. This senior, hands-on role demands advanced C/C++, RTOS, and multithreading expertise, plus electrical power systems knowledge. You will own the full software lifecycle, from ...