SeniorSoftwareEngineer | Distributed Systems | Sustainable Cloud Native Platform 💸Up to £110,000 per annum plus bonus plus stock 🏠Central London office 🖱️Golang, Rust, C, Kubernetes, Linux, Cloud Native, Distributed systems... Are you a SeniorSoftwareEngineer with extensive knowledge of building distributed systems? Looking to join a company who are solving genuine problems … a real impact on projects? If so... I'm partnered with a very exciting Cloud scale-up who have received record Series A funding and are looking for innovative SeniorSoftware Engineers to join their ambitious team! With a new VP of Engineering who has spent much of their career building out a world leading Cloud platform, the … to build out state-of-the-art, Greenfield code which can focus on being the worlds most accountable and sustainable cloud provider🌳 What they're looking for in a SeniorSoftwareEngineer: Tech agnostic but preferable experience working with Golang, Rust, C/C++ or Java. In-depth knowledge of distributed systems, building solutions at scale where More ❯
london (city of london), south east england, united kingdom
Burns Sheehan
SeniorSoftwareEngineer | Distributed Systems | Sustainable Cloud Native Platform 💸Up to £110,000 per annum plus bonus plus stock 🏠Central London office 🖱️Golang, Rust, C, Kubernetes, Linux, Cloud Native, Distributed systems... Are you a SeniorSoftwareEngineer with extensive knowledge of building distributed systems? Looking to join a company who are solving genuine problems … a real impact on projects? If so... I'm partnered with a very exciting Cloud scale-up who have received record Series A funding and are looking for innovative SeniorSoftware Engineers to join their ambitious team! With a new VP of Engineering who has spent much of their career building out a world leading Cloud platform, the … to build out state-of-the-art, Greenfield code which can focus on being the worlds most accountable and sustainable cloud provider🌳 What they're looking for in a SeniorSoftwareEngineer: Tech agnostic but preferable experience working with Golang, Rust, C/C++ or Java. In-depth knowledge of distributed systems, building solutions at scale where More ❯
SeniorSoftwareEngineer/Developer (C# .Net) London onsite to £150k Are you an experienced C#, backend focussed SoftwareEngineer? You could be progressing your career in a senior, hands-on role at a global Asset Manager with c$3 million under management. As a SeniorSoftwareEngineer within the trading … You are collaborative with excellent communication and stakeholder management skills You are degree educated in Computer Science or similar technical discipline What's in it for you: As a SeniorSoftwareEngineer/Developer you will receive a competitive package: Salary to £150k Bonus paid every six months based on personal performance (10-25%) Professional development Pension … Health Insurance Gym membership Social events, free fruit, snacks, coffee etc. Apply now to find out more about this SeniorSoftwareEngineer/Developer (C# .Net) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from More ❯
london (city of london), south east england, united kingdom
Wilson Brown
SeniorSoftwareEngineer | Full-Stack | TypeScript, AWS, Node, React 📍 Hybrid (Central London – 2 days per week) | ~£90k + Benefits A leading global technology business in the travel and lifestyle space is seeking a SeniorSoftwareEngineer (TypeScript, AWS, Node, React) to join a collaborative, cross-functional engineering squad. This role goes far beyond coding … by integrating AI and automation into platform solutions Maintain high standards of performance, scalability, security, and observability (using tools like DataDog) What We’re Looking For Significant experience in software engineering, ideally in a senior capacity Expertise in JavaScript/TypeScript , Node.js , React , GraphQL , and AWS (EKS, Lambda, RDS) Strong background in building and maintaining robust APIs (REST … environment. 📩 Apply now and take the next step in your engineering career – we’d love to hear from you! 📍 Hybrid (Central London – 2 days per week) | ~£90k + Benefits 🚀 SeniorSoftwareEngineer | Full-Stack | TypeScript, AWS, Node, React More ❯
SeniorSoftwareEngineer | Full-Stack | TypeScript, AWS, Node, React 📍 Hybrid (Central London – 2 days per week) | ~£90k + Benefits A leading global technology business in the travel and lifestyle space is seeking a SeniorSoftwareEngineer (TypeScript, AWS, Node, React) to join a collaborative, cross-functional engineering squad. This role goes far beyond coding … by integrating AI and automation into platform solutions Maintain high standards of performance, scalability, security, and observability (using tools like DataDog) What We’re Looking For Significant experience in software engineering, ideally in a senior capacity Expertise in JavaScript/TypeScript , Node.js , React , GraphQL , and AWS (EKS, Lambda, RDS) Strong background in building and maintaining robust APIs (REST … environment. 📩 Apply now and take the next step in your engineering career – we’d love to hear from you! 📍 Hybrid (Central London – 2 days per week) | ~£90k + Benefits 🚀 SeniorSoftwareEngineer | Full-Stack | TypeScript, AWS, Node, React More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Harrington Starr
SeniorSoftwareEngineer Key Technologies: C#, .NET, React, AWS, Docker, Kubernetes City of London, United Kingdom Perm Role: £80,000 - £120,000 Harrington Starr has partnered with a Global Financial Services Vendor and they are looking for a Senior C#, .NET SoftwareEngineer to join their growing team! This role provides the perfect opportunity … communication skills. Unrestricted right to work in the UK. This role offers hybrid working, with an office location based in the City of London. This role will suit a SeniorSoftwareEngineer, with expert C#, .NET experience and commercial use of React having a direct impact from the get-go. Apply below and if you have any More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Capsa AI
At a Glance Capsa is an AI platform that accelerates due diligence and deepens insights for Private Equity funds. We are hiring seniorsoftware engineers who are comfortable contributing across all layers of the application and developing features end to end. Details: Role : SeniorSoftwareEngineer - Full Stack Location : London, UK (Hybrid, In-Person … defense companies like QinetiQ and retail tech startups such as Standard AI. The entire team consists of early-stage startup veterans passionate about building exceptional products. The Role A seniorsoftwareengineer at Capsa is expected to own projects and features from conception to production, working across the stack to deliver improvements to our AI platform. Key … vision and will have a direct impact on its success. Have the opportunity for fast career growth. Enjoy yourself! Apply if: You have 5+ years of experience as a softwareengineer in a venture backed startup or top tech firm. You have taken entire products or features from ideation to production and you've measured their impact. You More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Capsa AI
At a Glance Capsa is an AI platform that accelerates due diligence and deepens insights for Private Equity funds. We are hiring seniorsoftware engineers who are comfortable contributing across all layers of the application and developing features end to end. Details: Role : SeniorSoftwareEngineer - Full Stack Location : London, UK (Hybrid, In-Person … defense companies like QinetiQ and retail tech startups such as Standard AI. The entire team consists of early-stage startup veterans passionate about building exceptional products. The Role A seniorsoftwareengineer at Capsa is expected to own projects and features from conception to production, working across the stack to deliver improvements to our AI platform. Key … vision and will have a direct impact on its success. Have the opportunity for fast career growth. Enjoy yourself! Apply if: You have 5+ years of experience as a softwareengineer in a venture backed startup or top tech firm. You have taken entire products or features from ideation to production and you've measured their impact. You More ❯
City of London, London, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Senior Java SoftwareEngineer/Team Lead (FX Trading) London to £135k Do you have advanced Java technical knowledge combined with team leadership skills and a strong knowledge of Capital Markets? You could be progressing your career at the Investment Management arm of a global bank. As a Senior Java SoftwareEngineer/Team … speed You have excellent communication and collaboration skills You are degree educated in Computer Science or similar technical or numerate discipline What's in it for you: As a Senior Java SoftwareEngineer/Team Lead you will receive a competitive Salary to £135k Bonus Pension One day work from home per week Continuous training and career … progression opportunities Apply now to find out more about this Senior Java SoftwareEngineer/Team Lead (OOP Java Algorithm) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will More ❯
Job Title: SeniorSoftwareEngineer Reporting to: Lead Engineer Role Purpose: As a SeniorSoftwareEngineer, you will enhance and support both new and existing products within the Software Engineering group. In addition to contributing to feature development, you will play a role in shaping the technology and process strategies, and occasionally … lead innovation or software design initiatives. Key Responsibilities: Develop new features with a strong focus on high-quality code. Conduct peer code reviews to ensure quality and adherence to best practices. Participate in daily stand-ups, change analysis sessions, and technical presentations. Provide guidance on tool and environment adoption where necessary. Continuously develop knowledge of the business domain and … proficiency in C# at a commercial level. Solid experience with .NET Core and related open-source technologies. Knowledge of Object Orientation, SOA, and relevant design patterns. Experience with modern software development practices, including agile methodologies , version control, code reviews, and continuous integration. Understanding of concurrency, asynchrony, and parallelism. Experience with Test Driven Development (TDD), unit testing frameworks, mocking frameworks More ❯
Title : SeniorSoftwareEngineer (Compilers) Company : HPC R&D Location : London (primarily remote) Pay : Up to £160,000 + bonus + benefits Company : An advanced HPC R&D firm, looking to expand the UK compiler team. Most of the team are ex-Big-Tech, ex-FAANG or ex-Chip firms. They joined because they get more flexibility … is significantly smaller, with highly technical leadership. If you want to work alongside some of the brightest, most enthusiastic people in the industry, this may be worth exploring. Role : SeniorSoftwareEngineer position with an emphasis on AI Compiler development. You will be a significant hire and will own much of the development of a cutting-edge … the team to support this role. Mostly LLVM based, it is important you also have experience working with GPUs to an extent. About you: 6 years+ as a compiler engineer Strong C++ programming skills Experience with LLVM, MLIR, Triton or other compilers Experience with GPU architectures Full details are available. Please don't hesitate to get in touch with More ❯
City of London, London, United Kingdom Hybrid / WFH Options
HBS
SeniorSoftwareEngineer – Backend/API (Live Sport Broadcasting) 🗓️ Contract type: Fixed term contract to August 2026 📍 Based in Paris OR London (hybrid working) ➡️ Click: "Apply via LinkedIn" ⚽ Passionate about sports? Excited by the challenge of building scalable, real-time systems that will be seen by millions worldwide? Join us and shape the metadata backbone behind one … workflows. The goal is to build a future-proof system that can evolve with changing data needs and integrate seamlessly with frontend tools and real-time renderers. As the SeniorSoftwareEngineer – Backend/API Focus, you’ll take the lead on designing and implementing this service, from data modeling to endpoint structure and performance tuning, ensuring More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
HBS
SeniorSoftwareEngineer – Backend/API (Live Sport Broadcasting) 🗓️ Contract type: Fixed term contract to August 2026 📍 Based in Paris OR London (hybrid working) ➡️ Click: "Apply via LinkedIn" ⚽ Passionate about sports? Excited by the challenge of building scalable, real-time systems that will be seen by millions worldwide? Join us and shape the metadata backbone behind one … workflows. The goal is to build a future-proof system that can evolve with changing data needs and integrate seamlessly with frontend tools and real-time renderers. As the SeniorSoftwareEngineer – Backend/API Focus, you’ll take the lead on designing and implementing this service, from data modeling to endpoint structure and performance tuning, ensuring More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Venture Up
Senior Golang Software Backend Engineer Fully Remote/UK Working Hours A couple of Senior Golang Software Backend Engineers are required for an exciting and innovative Software house company based in London and Hong Kong. The company operates at the forefront of sports, entertainment, and cryptocurrency, and they are growing rapidly. The successful Software Backend Engineer will be responsible for developing and maintaining company’s complex backend systems, working closely with other engineers to design and implement efficient and reliable solutions that deliver exceptional user experiences. But more than that, they are seeking a results-oriented individual who is eager to coach and mentor team members, helping them grow both professionally and … personally. Their development team uses various different programming languages with a particular focus on Golang but they are looking primarily for strong software developers first and experiences of technologies second. The company is made up of some of the very best software developers and mathematicians. Each brings their unique perspective from their backgrounds in computer science, physics, mathematics More ❯
SeniorSoftwareEngineer – Rust, C++, Java or Python - London - Up to £150k base + meaningful equity Are you excited by solving technically challenging problems and building mission-critical software? We’re partnering with a well-funded, high-growth technology company at the forefront of software and AI innovation. They’re building the foundational platforms that … and impact from Day One. Work in a collaborative culture, where your ideas directly influence product design, functionality, and direction. What you’ll do: Design, build, and test core software platforms and user interfaces. Collaborate with customers and users to refine and deliver features that matter most. Interface with autonomous and robotic systems in the field. Contribute to a More ❯
london (city of london), south east england, united kingdom
Durlston Partners
SeniorSoftwareEngineer – Rust, C++, Java or Python - London - Up to £150k base + meaningful equity Are you excited by solving technically challenging problems and building mission-critical software? We’re partnering with a well-funded, high-growth technology company at the forefront of software and AI innovation. They’re building the foundational platforms that … and impact from Day One. Work in a collaborative culture, where your ideas directly influence product design, functionality, and direction. What you’ll do: Design, build, and test core software platforms and user interfaces. Collaborate with customers and users to refine and deliver features that matter most. Interface with autonomous and robotic systems in the field. Contribute to a More ❯
SeniorSoftwareEngineer (Backend Focus) | London | Up to £160k 💷 Want to make a real impact in a fast-moving, early-stage environment? We’re looking for a Product Engineer with a backend bias to help design, build, and scale cutting-edge products. You’ll work across the stack, ship fast, and play a key role in More ❯
london (city of london), south east england, united kingdom
Arrows
SeniorSoftwareEngineer (Backend Focus) | London | Up to £160k 💷 Want to make a real impact in a fast-moving, early-stage environment? We’re looking for a Product Engineer with a backend bias to help design, build, and scale cutting-edge products. You’ll work across the stack, ship fast, and play a key role in More ❯
Senior C# Engineer – City of London (On-site) Permanent | £90,000 – £120,000 We’re partnered with an innovative proprietary trading firm in the City of London that is hiring a Senior C# SoftwareEngineer . You’ll work on greenfield projects, cutting-edge technology, and play a key part in shaping systems that directly More ❯
london (city of london), south east england, united kingdom
Harrington Starr
Senior C# Engineer – City of London (On-site) Permanent | £90,000 – £120,000 We’re partnered with an innovative proprietary trading firm in the City of London that is hiring a Senior C# SoftwareEngineer . You’ll work on greenfield projects, cutting-edge technology, and play a key part in shaping systems that directly More ❯
SeniorSoftwareEngineer (Rust) - London - Permanent - £150,000 to £180,000 La Fosse have partnered with a cutting-edge digital trading firm (crypto & proprietary) who are building out their nascent London office . This is a rare opportunity to join at an early stage, with the chance to shape technical direction while working on high-performance, low … building and optimizing low-latency, high-performance systems Bonus Skills: Knowledge of multithreading Familiarity with web protocols (REST, WebSocket) Experience with high-throughput systems If you’re a Rust engineer passionate about performance-critical systems and want to work on bleeding-edge trading technology , this is the opportunity to make a real impact. How to apply: Please click the More ❯
london (city of london), south east england, united kingdom
La Fosse
SeniorSoftwareEngineer (Rust) - London - Permanent - £150,000 to £180,000 La Fosse have partnered with a cutting-edge digital trading firm (crypto & proprietary) who are building out their nascent London office . This is a rare opportunity to join at an early stage, with the chance to shape technical direction while working on high-performance, low … building and optimizing low-latency, high-performance systems Bonus Skills: Knowledge of multithreading Familiarity with web protocols (REST, WebSocket) Experience with high-throughput systems If you’re a Rust engineer passionate about performance-critical systems and want to work on bleeding-edge trading technology , this is the opportunity to make a real impact. How to apply: Please click the More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Bounce Digital
Role: SeniorSoftwareEngineer Salary/Package: £80k-£120k + Equity Options Company Sector: AI & Healthtech Experience Level: Senior (5+ years) Tech: Java, Distributed Systems, Docker, Kubernetes, SQL, CI/CD Pipelines, React Location: Central London WFH/Hybrid: 2-3 days a week on site **No Sponsorship Opportunities** Bounce have partnered with a healthtech start … up striving to transform drug discovery by empowering researchers to revolutionise their workflows with gen AI. They're at the intersection of enterprise software, AI, and real-world problems within health & life sciences. The founders are all ex-Palantir, worked together for 6 years. They know this space extremely well and have already gained a lot of traction. . … their platform. Headlines: Open to language background - building in Java and React but no experience necessary Passion for solving complex tech challenges Motivation from solving real-world problems with software and AI Strong proactive problem-solving and doer mindset Comfort with ambiguity and rapid iteration A builder’s mindset with a passion for taking ideas from concept to reality More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Bounce Digital
Role: SeniorSoftwareEngineer Salary/Package: £80k-£120k + Equity Options Company Sector: AI & Healthtech Experience Level: Senior (5+ years) Tech: Java, Distributed Systems, Docker, Kubernetes, SQL, CI/CD Pipelines, React Location: Central London WFH/Hybrid: 2-3 days a week on site **No Sponsorship Opportunities** Bounce have partnered with a healthtech start … up striving to transform drug discovery by empowering researchers to revolutionise their workflows with gen AI. They're at the intersection of enterprise software, AI, and real-world problems within health & life sciences. The founders are all ex-Palantir, worked together for 6 years. They know this space extremely well and have already gained a lot of traction. . … their platform. Headlines: Open to language background - building in Java and React but no experience necessary Passion for solving complex tech challenges Motivation from solving real-world problems with software and AI Strong proactive problem-solving and doer mindset Comfort with ambiguity and rapid iteration A builder’s mindset with a passion for taking ideas from concept to reality More ❯
Senior Java Engineer – Exchange Connectivity! 💹💰 Salary: Up to £150,000 + bonus (previously 20-30%) + benefits 📍 Location: 3 days onsite, City of London Do you enjoy writing high-performance, low-latency Java code day-to-day? Do you have commercial experience in exchange trading/exchange connectivity? This highly respected, global financial institution is expanding its London … office and is on the lookout for a Senior Java Engineer to work on their high-performance exchange connectivity solutions for global trading. This includes traditional financial and digital assets (including crypto). As the Senior Java Engineer, you will: Be specialising in low-latency, high-performance trading systems using Core Java. Work in a very …/trading environments e.g. FIX, binary protocols, proprietary APIs This is an exceptional opportunity to develop your skills while contributing to a leading trading platform. If you are a Senior Core Java Engineer who also enjoys being hands-on with writing code daily, this one is for you! Ready to help contribute to a passionate and strong team More ❯
