java software engineer jobs in London

About the Role: We have recently partnered with an exciting fintech payments start-up/scale-up that boasts the strong backing of a prominent UK retail and commercial bank. Their core focus is on delivering cost-effective and rapid payment solutions to customers through handheld card machines, POS systems, and open banking offerings. This presents a unique...

Location(s): London or Manchester BAE Systems Digital Intelligence is home to 4,500 digital, cyber and intelligence experts. We work collaboratively across 10 countries to collect, connect and understand complex data, so that governments, nation states, armed forces and commercial businesses can unlock digital advantage in the most demanding environments....

Come and join a fibre-optic team and get your "threads" in the networking game!As a Software Engineer, you can make your mark in the fibre-networking world. This is a company with passion for building beautiful, efficient, and user-friendly products and is transforming fibre-networking not just in London, but beyond. They are looking for talented software...

About The Role Europe’s Top Research & Quant Trading firm is currently looking for the top Polyglot Software Engineers in the city to join their genuinely bleeding-edge Research and Innovation lab, leveraging the very latest in Opensource and Cloud-Native Tech. They’re earmarked to be the number one quant trading firm in the world in the next 5 years....

Safety Software Engineer Location: London (relocation costs covered) Salary: £75K - £85K + Benefits Safety Software Engineer required by an innovative technology business working at the forefront of AI-enabled medical devices and software! You'll join a specialist team assessing the software development processes and technical evidence behind cutting-edge...

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...

Build the engine room of a payments platform that actually understands money. Most payments companies are wrappers. Money goes in, money comes out, and nobody can tell you why a particular merchant got paid the amount they did, against which rule, on which day. Our client can. That is the whole product. We're partnering on a search for a well funded London...

Who We Are: Hello from RE Partners! We are a fast growing business and technology consultant company co-founded in 2019. We offer a custom-tailored, white-glove engineering service fit for our clients, because a digital transformation is more than just technology. With a successful track record of being a preferred vendor for Fortune 500 companies and as a...

About Adarga Adarga builds AI systems for customers working in Defence, Security and Resilience. With a core focus on our multimodal data fusion platform, we combine the value of humans and agents to transform information overload into decision advantage. Our team is a hybrid of domain specialists and technologists. We believe this layering of experience is...

This position will be posted for a minimum of five calendar days internally. All internal applicants are required to inform your current supervisor/manager prior to applying. Internal applicants are required to be in "good standing" in your current role, which is defined as a performance rating of "met all objectives" or higher. You cannot be on a current...

Senior Software Engineer Due to the interesting work we do and the sector this team is working in, we require all candidates to hold an active eDV clearance for this role. Date Posted: 2026-09-24 Country: United Kingdom Location: London, London, City of Position Role Type: Onsite Location: London Contract: Permanent Employment Type: Onsite About Us At...

OverviewLead Talent Consultant at Addition+, helping shape the next generation of Military Defence capabilities! (Engineering and Technology)Role: Senior Software Engineer (Python - FastAPI)Location: London (hybrid)Package: Competitive salary + bonus + benefitsIndustry: AI, Data Science & Technology ConsultingSecurity Clearance: Applicants Must have Active...

Software Engineer Backend Department: Dev & Engineering Employment Type: Full Time Location: United Kingdom Description About Intermedia Are you looking for a company where YOUR VOICE is heard? Where can you MAKE A DIFFERENCE? Do you THRIVE in a FAST-PACED work environment? Do you wake every morning EXCITED to work with GREAT PEOPLE and create SUCCESS...

Senior Software Engineer City of London, United Kingdom Harrington Starr has partnered with a Global Financial Services Vendor and they are looking for a Senior C#, .NET Software Engineer to join their growing team! This role provides the perfect opportunity to launch your career in a well‑established, dynamic environment. This role requires someone with...

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...

# Software/ Platform EngineerTravtusLondon, United KingdomFull-timeUpload your resume once and Scout applies for youApply with ScoutShare this job:LinkedInXSave imageThe Platform Software Engineer builds the shared services, APIs, and data pipelines that support Travtus’s AI product suite. The role focuses on Python and AWS platform development, helping...

Backend Software Engineer (Python/Django) x4 | Contract | £450 to £475 per day Outside IR35 | Bath, Hybrid or Remote Bright Purple is partnering with a well-established B2B software business to bring in a contract Backend Software Engineers. You will join the team redesigning their client portal. This is a hands-on role for an experienced mid-level or...

About IMU BiosciencesIMU Biosciences has developed proprietary platform technologies that generate and translate vast system-level immune data into actionable insights and tools to drive the development of precision medicines across a variety of diseases. IMU leverages advanced immune profiling with proprietary AI and machine learning analytics to uncover...

Agentic Software EngineerLondon · Full-time · On-siteTL;DRAI is collapsing the time and effort required to turn ideas into working software. We're redesigning how we build around that — using agents across the software lifecycle and enabling more of our team to ship changes directly.We're hiring an experienced software engineer who is already pushing...

Job Description Hybrid: 2 days per week in our Tower Bridge office (Wednesdays & Thursdays) money.co.uk exists to help consumers make more informed financial decisions. Our free, online comparison service allows consumers to compare financial products, from credit cards to savings accounts, loans to travel money. We want our users to feel reassured that...