Software Engineer - Platform United Kingdom, London Jobs

Join a leading investment firm as a Senior Software Engineer (Contract) on their high-scale Market Data Platform in London. You will design and optimize critical systems using Java and Python, handling billions of real-time data points daily. This high-impact role requires expertise in low-latenc...

Lead the technical vision as a Principal Software Engineer at Automata, shaping scalable, software-defined lab automation in London. You'll architect our core platform using Golang, Kubernetes, and distributed systems, with 12+ years of backend expertise. Mentor senior engineers, enjoy comprehens...

Lead a software engineering team focused on SDKs and DevEx for a leading CMS in London. We seek a proven leader with 10+ years of engineering experience, including 2+ years in management, and deep expertise in JavaScript/TypeScript or .NET. You will drive agile delivery, handle escalations, and f...

Join Microsoft's OneFuzz team in London as a Senior Software Engineer. Develop a scalable, cloud-based fuzzing platform using Python, C#, or Rust. Integrate security testing into CI/CD pipelines and advance fuzzing techniques. Collaborate on open-source innovation within a distributed systems env...

Join our London-based team as a Software Engineer to build AI-native developer tools in a fast-paced, high-trust environment. Leverage 5+ years of experience and cutting-edge AI coding tools to design, prototype, and scale innovative products. Enjoy benefits like 25 days holiday, health insurance...

Join Intercom in London as a Forward Deployed Software Engineer. You'll work hands-on with strategic customers, bridging the gap between their needs and our AI product, Fin. This role requires strong engineering skills, SaaS experience, and a passion for AI/ML to drive real business outcomes. Enj...

Launch your software engineering career with this 6-month fellowship in London. Gain real ownership and impact from day one, mentored by experts at a high-growth tech company. We seek top graduates excited to build scalable products in a high-performance environment. Benefits include professional...

Join Meta's AI Applications Engineering team in London as an AI Software Engineer. Optimize the performance of cutting-edge Generative AI and recommendation models on custom silicon (MTIA). Apply your expertise in AI infrastructure, GPU/accelerator architecture, and C++/Python to solve large-scal...

Join Atlassian in London as a Senior Frontend Software Engineer. You will build and modernize frontend infrastructure using React, JavaScript (ES6), and modern testing frameworks. Drive complex projects, mentor junior engineers, and deliver impactful user experiences. Enjoy benefits including hea...

Join Citi's pioneering team in London as a Senior Golang Engineer. Lead the 0-1 build of innovative AI products and platforms, leveraging your expertise in Golang, large-scale ML systems, and MLOps. Enjoy a hybrid model, competitive salary, bonus, and comprehensive benefits while defining the fut...

Join our London team as a Senior Software Supply Chain Security Engineer. You will design and implement secure, cloud-centric solutions using AWS, Kubernetes, and Terraform. Champion DevSecOps practices and integrate security into CI/CD pipelines within an inclusive, flexible culture. Drive engin...

Lead the development of cutting-edge AI products at Citi's innovation hub in London. This role requires deep Golang expertise and hands-on Kubernetes experience to build scalable, high-performance platforms. You will pioneer Generative AI solutions while mentoring a talented engineering team. Enj...

Join Citi's innovative startup team in London to build a green-field Generative AI platform from the ground up. We seek a Python expert with deep experience in LLMs, MLOps, and large-scale distributed systems. You will design, build, and run high-reliability software, shaping strategic AI solutio...

Join our London team as a Senior Software Engineer. You will design technical architecture and lead complex projects in Scala/Python, shaping the SolstiCE platform. This role offers a bonus, private medical care, and 27 days' leave. Drive efficiency and automation for our Equity Derivatives busin...

Join Ledger's Cloud Wallet team in London as a Staff Software Engineer. Build robust, scalable backend services in Scala/TypeScript for crypto wallet management. Leverage functional programming to power blockchain-based products in a hybrid work environment with equity and comprehensive benefits.

Join our Cloud Wallet team in London as a Staff Backend Engineer. Build robust, scalable services in a polyglot environment using Scala and TypeScript. A passion for functional programming, blockchain technology, and teamwork is key. Enjoy equity, hybrid work, and comprehensive health benefits.

Join our London team as a Senior Full-Stack Engineer. Drive innovation using Go, Python, and React within a product-focused, agile environment. Enjoy a hybrid model, 27 days leave, bonus, and comprehensive benefits while revolutionizing controls management.

Join our Cloud Wallet team in London as a Staff Backend Engineer. Build robust, high-performance Scala services for crypto wallet management in a hybrid work environment. Leverage functional programming, optimize with CI/CD, and dive into blockchain protocols. Equity, comprehensive health insuran...

Shape the future of global finance as a Software Engineer in London. Develop greenfield structured products using React, TypeScript, Kotlin, and Kafka within a microservices architecture. Embrace DevOps, CI/CD, and Agile practices while enjoying a hybrid model, bonus, and comprehensive benefits.

Join a scaling B2B SaaS firm in London, building a global compensation intelligence platform. As a Senior Software Engineer, you'll own core features end-to-end with TypeScript across the stack. We seek a collaborative expert who designs scalable systems and mentors peers, offering a clear path t...