senior java software engineer jobs in London

The best bit about Red Badger is, of course, the team. We are really proud of our people; we support and learn a lot from each other; we work really hard but have fun doing it. We are a diverse group made up of 22 different nationalities, speaking 17 different languages. Our 2 founders, Dave and Stu, who have considerable tech and consultancy experience and...

Senior Software Engineer £75,000 GBP Hybrid WORKING Location:Cambridge, East of England - United KingdomType:PermanentAn innovative cyber security technology business is seeking talented Software Engineers specialising in C++ or Rust to help develop next-generation network security products protecting some of the world's most critical digital...

The Role Schonfeld is seeking an exceptional Senior Software Engineer to join our Treasury Technology team. This team is dedicated to delivering top-tier systems that manage the firm’s securities lending and financing, repo trading, FX hedging, and collateral management. You will collaborate closely with our global Treasury Technology, Treasury Desk, and...

We are hiring a Full-Stack Engineer to help build the analytics workbench applications that supports analysis and decision-making across our business. Hayfin is a global alternative asset manager with deep expertise in credit and a broad alternatives platform, partnering with institutional investors worldwide. Reporting directly to the Director of Portfolio...

The Role Join our fast-growing team to deliver high-quality, well-engineered solutions that improve patient outcomes and primary care efficiency. You'll work in a cross-functional squad, collaborating with Product, Design, and Engineering to ship impactful features and iterate quickly. You'll also help shape our culture, raise standards, and scale both our...

Openr is transforming how the hospitality industry manages and shares data. By centralising recipe, product, and pricing information, we help hospitality businesses seamlessly connect to platforms like Deliveroo and Just Eat, as well as EPOS and other customer touch points.We've recently closed a significant funding round and are backed by Azzurri Group, one...

Engineering Central London · In person Full-time 3 openings Senior Software Engineer Tano builds agents that run influencer marketing the way a great person would: sourcing creators, briefing them, negotiating, and rewarding the ones who perform. The benchmark is not another tool, it is the human who used to do all of this by hand, and we clear that bar...

Our client is a major defence company. Job Title:Senior Software Engineer (CFD) Location:Filton – minimum 3 days on site per week. We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role Salary:£46350 Who we are: Join our client and you'll be part of something bigger. As a...

Join Axon and be a Force for Good.At Axon, we're on a mission to Protect Life. We're explorers, pursuing society's most critical safety and justice issues with our ecosystem of devices and cloud software. Like our products, we work better together. We connect with candor and care, seeking out diverse perspectives from our customers, communities and each...

Role Description Role- DotNet Developer Mandatory Skills : ASP.NET (Webforms), AWS EC2, C#, RabbitMQ Mode-3 Days from London Type-FTE As a Senior developer you will be responsible for the ensuring the team deliver high quality software using industry best practices for code management testing and CICD This is an exciting opportunity to build a new greenfield...

As a Senior Engineer, you will play a critical role in designing, developing, and optimising our innovative solutions. You’ll be responsible for driving the technical execution of projects, mentoring other developers, and ensuring our platform remains scalable, reliable, and secure. This role requires a blend of hands‑on coding, technical leadership, and...

Senior Software Engineer – Node.js / Backend Development – London (Hybrid, 3 days onsite) Are you the kind of Senior Software Engineer who enjoys taking something fast‑and‑scrappy and turning it into something scalable, elegant, and genuinely robust? This is a chance for a Senior Software Engineer to join a small, but ambitious tech‑for‑good /...

Company Overview Metrea delivers effects-as-a-service to national security partners across five domains and more than a dozen mission areas. These include airborne ISR, electronic warfare, secure communications, aerial refueling, special air missions, aerial firefighting, and advanced simulation. We own the whole stack: designing, building, and operating...

Senior Software EngineerPush Gaming is a dynamic and innovative game development studio specialising in creating top-quality, mobile-optimised online casino games. With a passion for gaming and a commitment to pushing boundaries, we are dedicated to delivering exceptional experiences to players worldwide.We are looking to hire an experienced engineer to...

End DateFriday 13 November 2026Salary Range£84,624 - £126,936We support flexible working – click here for more information on flexible working optionsFlexible Working OptionsHybrid Working, Job ShareJob Description Summary.Job DescriptionJOB TITLE: Senior Software EngineerSALARY: £84,624-£105,780LOCATION(S): LondonHOURS: Full-timeWORKING PATTERN: Our...

Company Overview Metrea delivers effects-as-a-service to national security partners across five domains and more than a dozen mission areas. These include airborne ISR, electronic warfare, secure communications, aerial refueling, special air missions, aerial firefighting, and advanced simulation. We own the whole stack: designing, building, and operating...

Senior Software Engineer | Series A Cybersecurity Start-Up | LondonSenior Software Engineer required to join a fast-growing Series A cybersecurity start-up in London, tackling some of the most difficult problems in modern security. The company has been built by experienced founders with a proven track record of building and scaling successful cybersecurity...

Salary up to: CompetitiveSenior Software Engineer – Web ExperienceOverall PurposeBuild the customer online ordering experience, the web application customers use every day to order for delivery, click-and-collect and order-at-table, and help steer where it goes next. As a Senior Software Engineer, you'll be one of the most experienced engineers on the...

OverviewSenior Backend Engineer to join the Space and Range team at Holland & Barrett. In this role, you will help develop and enhance tools that shape how our stores are designed—from the overall layout to the placement of bays and shelves. These tools visualize store environments in 3D to provide teams with a near real-life view of the customer...

Senior Software Engineer - Node.js, Typescript & AWS | Financial Services Location: London | Hybrid - 1 day onsite ; Salary: £75,000 - £ 105,000 About the role: We're looking for a Senior Software Engineer to join our engineering team and build reliable, scalable technology supporting regulated investment and custody services. You'll work in a highly...