201 to 225 of 454 Software Engineer Jobs in London

Senior/Principal Software Engineer .NET £85,000-£110,000 Remote (UK) Do you thrive on building scalable solutions that power commerce worldwide? We're partnering with a rapidly expanding global payment platform fresh off a transformative acquisition. They're engineering a robust, merchant-centric ecosystem built … quality, resilience, and scale - and they need exceptional .NET Software Engineers to drive this evolution. Your Impact: Design and develop mission-critical platform services, APIs, and merchant portals Drive performance optimisation and system reliability through intelligent engineering Champion engineering excellence in architecture, code quality, and delivery Partner with cross ...

Contract Software Engineer - Up to £550 p/d - Outside IR35 - Fully Remote Great opportunity for an experience Contractor to join an eCommerce client as they migrate a legacy C# product to modern Typescript. The ideal candidate will have worked with all listed technologies below and have past … missing so if you'd like to drop me a message/email direct to flag your interest, please use the title 'Contact Engineer role 25/ ...

Contract Software Engineer - Up to £550 p/d - Outside IR35 - Fully Remote Great opportunity for an experience Contractor to join an eCommerce client as they migrate a legacy C# product to modern Typescript. The ideal candidate will have worked with all listed technologies below and have past … missing so if you'd like to drop me a message/email direct to flag your interest, please use the title 'Contact Engineer role 25/ ...

About The Role Deadline for applications: 11:59pm on 31st October 2025 Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. We use technology to create impactful, human-centred solutions that make … working closely with senior stakeholders, mentoring engineers across multiple teams, and line managing a small group of engineers while helping shape our approach to software delivery, architecture, and engineering culture. Responsibilities Lead the design and development of advanced software solutions, ensuring high standards of quality, security and scalability. ...

Senior Software Engineer – 3D Graphics/Computer Vision London preferred | Full-time | Visa sponsorship available The mission Work at a stealthy 3D/graphics startup that turns real‐world objects into production‐ready, photoreal assets for film, games and real‐time experiences. Think: high‐end material capture … photogrammetry tools used behind the scenes by top studios, not off‐the‐shelf consumer software. The role You’ll be the go‐to engineer for 3D rendering and asset processing in a Windows desktop app that sits at the heart of the company’s pipeline. Expect deep work ...

Senior Software Engineer – 3D Graphics/Computer Vision London preferred | Full-time | Visa sponsorship available The mission Work at a stealthy 3D/graphics startup that turns real‐world objects into production‐ready, photoreal assets for film, games and real‐time experiences. Think: high‐end material capture … photogrammetry tools used behind the scenes by top studios, not off‐the‐shelf consumer software. The role You’ll be the go‐to engineer for 3D rendering and asset processing in a Windows desktop app that sits at the heart of the company’s pipeline. Expect deep work ...

Newcastle Upon Tyne, Tyne and Wear, North East, UKAbout The RoleDeadline for applications: 11:59pm on 31st October 2025Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software.We use technology to create impactful, human … working closely with senior stakeholders, mentoring engineers across multiple teams, and line managing a small group of engineers while helping shape our approach to software delivery, architecture, and engineering culture.ResponsibilitiesLead the design and development of advanced software solutions, ensuring high standards of quality, security and scalability.Set the technical ...

Role: Software Engineer (Java) Location: London Salary: Competitive salary and package (Depending on level of experience) Any offer of employment is subject to satisfactory BPSS and the candidate being granted a level of security clearance which typically requires 10 years continuous UK address history, usually including no periods ...

Senior Software Engineer | Climate Tech | London (Hybrid) A climate tech startup building tools that make clean energy the default choice is looking for engineers who enjoy deep technical challenges and want their work to create real-world impact. Their platform helps stabilise the grid by shifting energy usage ...

Senior Software Engineer | Climate Tech | London (Hybrid) A climate tech startup building tools that make clean energy the default choice is looking for engineers who enjoy deep technical challenges and want their work to create real-world impact. Their platform helps stabilise the grid by shifting energy usage ...

Senior Software Engineer City of London - 1 Day per week Insurtech/Climate About the role This organisation creates insurance products that support the transition to a low-carbon economy. The team is small, fast-moving and focused on modernising a traditionally slow sector. They use a flexible ...

Software Engineer (Kotlin) £65,000 - £80,000 + bonus + excellent Benefits Hybrid - 2 days onsite in Central London (Zone 1) Are you a JVM engineer curious about Kotlin - or already loving it? Want to solve complex problems that contribute to a greener, more sustainable world? Join ...

Software Engineer (Kotlin) ?? £65,000 - £80,000 + bonus + excellent Benefits ?? Hybrid - 2 days onsite in Central London (Zone 1) Are you a JVM engineer curious about Kotlin - or already loving it? Want to solve complex problems that contribute to a greener, more sustainable world? ???? Join ...

Senior Software Engineer - AI Infrastructure We’re working with a hyper growth company. They are building the GPU infrastructure to the best ai labs and the biggest enterprise companies. They are building the solution that allows researches to focus on their models, while utilising the phenomenal scale … role for engineers who like big systems, hard problems, and meaningful ownership. You’ll be joining a team operating at the intersection of software, hardware, and AI. ...

Senior Software Engineer - AI Infrastructure We’re working with a hyper growth company. They are building the GPU infrastructure to the best ai labs and the biggest enterprise companies. They are building the solution that allows researches to focus on their models, while utilising the phenomenal scale … role for engineers who like big systems, hard problems, and meaningful ownership. You’ll be joining a team operating at the intersection of software, hardware, and AI. ...

growing space engineering team in the UK is seeking a Simulation Software Engineer to support the development of high-fidelity spacecraft simulators used for mission design, verification, and operations. Youll work alongside software and aerospace engineers to develop simulation tools, integrate flight software, and ensure robust … upcoming spacecraft missions.= What Youll Do Design, implement, and test spacecraft simulators as part of a multidisciplinary engineering team Develop and integrate simulation software aligned with mission and subsystem requirements Validate, configure, and deploy simulator builds into operational environments Create scripts based on operational scenarios to support testing ...

Senior Software Engineer I (Python & AI) Are you ready for the next step in your engineering career? Would you enjoy working on our cutting-edge products? About our team: We are strengthening our software engineering team to modernise our existing application stack, powering one of LexisNexis Intellectual … Python, C#/.Net, SQL, AWS (EKS, S3, Lambda, CDK, etc.), Applied AI/ML libraries and frameworks. About the role: We are hiring Software Engineers to work on modernising and enhancing a key product, LexisNexis Classification. This product uses AI to read millions of patents globally and pull ...

Senior Software Engineer I (Python & AI) Are you ready for the next step in your engineering career? Would you enjoy working on our cutting-edge products? About our team: We are strengthening our software engineering team to modernise our existing application stack, powering one of LexisNexis Intellectual … Python, C#/.Net, SQL, AWS (EKS, S3, Lambda, CDK, etc.), Applied AI/ML libraries and frameworks. About the role: We are hiring Software Engineers to work on modernising and enhancing a key product, LexisNexis® Classification. This product uses AI to read millions of patents globally and pull ...

Senior Software Engineer (Kotlin) ?? £85,000 - £95,000 + bonus + excellent Benefits ?? Hybrid - 2 days onsite in Central London (Zone 1) Are you a JVM engineer curious about Kotlin - or already loving it? Want to solve complex problems that contribute to a greener, more sustainable world ...

Senior Software Engineer I- (C# .NET/Angular) Are you ready for the next step in your engineering career? Would you enjoy working on our cutting-edge products? About Our Team: We are strengthening our software engineering team to modernise our existing application stack, powering … Python, C#/.Net, SQL, AWS (EKS, S3, Lambda, CDK, etc.), Applied AI/ML libraries and frameworks. About The Role: We are hiring Software Engineers to work on modernising and enhancing a key product, LexisNexis® Classification. This product uses AI to read millions of patents globally and pull ...

Senior Software Engineer I- (C# .NET/Angular) Are you ready for the next step in your engineering career? Would you enjoy working on our cutting-edge products? About Our Team: We are strengthening our software engineering team to modernise our existing application stack, powering … Python, C#/.Net, SQL, AWS (EKS, S3, Lambda, CDK, etc.), Applied AI/ML libraries and frameworks. About The Role: We are hiring Software Engineers to work on modernising and enhancing a key product, LexisNexis® Classification. This product uses AI to read millions of patents globally and pull ...

Java Software Development Engineer in Test - FinTech - Java Remote (UK) | £80 - 90k Our client a cutting-edge fintech business is looking for a Software Development Engineer in Test (Java SDET) to strengthen their automated testing framework and drive software quality to the highest standards. This … testing to uncover edge cases and ensure robustness Pair with developers to enhance testing infrastructure for continuous delivery Proactively identify areas for improvement in software quality Essential Experience: Strong Object-Oriented Programming in Java (ideally Core Java) Proven background as an SDET Component testing, end-to-end testing & failure ...

Java Software Development Engineer in Test - FinTech - Java Remote (UK) | £80 - 90k Our client a cutting-edge fintech business is looking for a Software Development Engineer in Test (Java SDET) to strengthen their automated testing framework and drive software quality to the highest standards. This … testing to uncover edge cases and ensure robustness Pair with developers to enhance testing infrastructure for continuous delivery Proactively identify areas for improvement in software quality Essential Experience: Strong Object-Oriented Programming in Java (ideally Core Java) Proven background as an SDET Component testing, end-to-end testing & failure ...

Senior Software Engineer - Full-Stack Location: London Working Model: Hybrid 3 Days Salary: Up to £128,000 Ready to build tech that actually means something? This team is powering the next generation of electrification EVs, solar, batteries, heat pumps, smart devices all connected through a platform thats scaling … fast and rewriting the rulebook in green-energy tech. Theyre growing. Theyre hiring. And they want a Senior Engineer who can own problems end-to-end, think like a product person, and ship like someone who knows their craft inside out. If you want a job where you just ...

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# Software Engineer . You’ll work on greenfield projects, cutting-edge technology, and play ...