senior software engineer- java jobs in London

About Invisible Invisible Technologies makes AI work. Our end-to-end AI platform structures messy data, automates digital workflows, deploys agentic solutions, measures outcomes, and integrates human expertise where it matters most. Our platform cleans, labels, and structures company data so it is ready for AI. It adapts models to each business and adds...

Elsevier in City of London is seeking an experienced software engineer to design, build, and operate secure cloud infrastructure in production. You will work in a fast-paced agile squad delivering scalable services in AWS, with a focus on reliability, security, and robust monitoring.You will mentor colleagues, shape engineering standards, and collaborate...

What we do. Electric Car Leasing Why we do it. Greener. Fairer. Future. We’re looking for a Senior Fullstack Software Engineer (Python and React) to join our product and engineering team building the systems that power our ability to revolutionize the electric car leasing industry. Our tech stack is Python with GraphQL, React with Next.js, PostgreSQL and...

Senior Software Engineer (Node.js, TypeScript) London, England, United Kingdom Here’s a summary of the role: Build software that matters, take real technical ownership, and use modern AI tooling to do your best work. This is a hands-on senior engineering role for someone who enjoys solving complex product problems, shaping robust solutions, and helping...

London, United Kingdom | Posted on 29/07/2026 Build software that powers unmanned systems already deployed in the real world. At sees.ai , we’ve developed a system that is already being used to inspect critical national infrastructure — operating in live environments, not simulations. Now, following a major contract with National Grid and recent...

Join a global technology leader – Uxbridge, Hybrid Working ModelA global technology company is expanding its UK development centre and is looking for a Senior Embedded Linux Software Engineer to take technical ownership of major software work packages across mission-critical satellite communication products.This is a senior hands‑on role combining...

2 days ago Be among the first 25 applicantsWe are building LLM evaluation and training datasets to train LLM to work on realistic software engineering problems. One of our approaches, in this project, is to build verifiable SWE tasks based on public repository histories in a synthetic approach with human-in-the-loop; while expanding the dataset coverage to...

Description Join Team CARFAX as Senior Software Engineer - Team LeadIsn't it time you bragged about where you work? At CARFAX, we do, every day. We pride ourselves on being mission-focused on helping to grow a brand built on accuracy and integrity. We care deeply about our products and our customers. We’re more than just a company: We help millions of...

At Ripple, we’re building a world where value moves like information does today. It’s big, it’s bold, and we’re already doing it. Through our crypto solutions for financial institutions, businesses, governments and developers, we are improving the global financial system and creating greater economic fairness and opportunity for more people, in more...

DescriptionWe’re looking for a Software Engineer to join our Level 3 Customer Support team, dedicated to UK government customers. This is a hands-on, hybrid role based in Central London (near Liverpool Street Station), with a minimum of two days per week in the office. Customer onsite visits are also required depending on the sensitivity of the customers...

Hivemind Solutions Division London Hybrid Full-TimeAbout the roleThe Systems Engineer, Autonomy & Software at Shield AI is responsible for solving complex systems engineering challenges associated with the development, integration, and deployment of advanced autonomous systems for defense applications.The ideal candidate has a strong background in software...

Senior Full Stack Software Engineer £100,000–£110,000 + benefits UK-based | Hybrid – London 2 days per week Certus Recruitment is working with an ambitious UK fintech building a regulated stablecoin and digital payments platform. We are looking for a Senior Software Engineer to join at an early stage and help build the application, financial...

We're hiring a senior engineer for Content Agent - Sanity's operations layer for structured content. It's the system that turns content work (bulk edits, audits, translation, publishing) into things an agent can actually run. It lives in Dashboard, Studio, Slack, and behind a headless API. If you've spent time on AI systems that have to hold up for real...

White Collar Factory (95009), United Kingdom, London, London Senior Software Engineering Manager Job Title: Senior Software Engineering Manager Location: London - Hybrid Working Pattern: 3 days in-office (Tuesday-Thursday) and 2 days remote. Our Mission We’re on a mission to be a force for good in lending. Throughout our almost 30-year history,...

A global brokerage and financial technology company in Greater London is seeking a Senior Middle Office Backend Software Engineer. In this role, you will lead a team of engineers to enhance the performance of the GBX platform, ensuring system resiliency and scalability. Candidates should have over 8 years of Java experience and a solid understanding of...

Energy Jobline CVL in London is seeking an exceptionally experienced software professional to guide a domain spanning vanilla financial products and cutting-edge tech stack. The role requires 15+ years of industry experience and at least 5+ years in banking or trade management, with hands-on development across front-end and back-end systems.You will work...

mthree is seeking an Expert Systems Developer to lead the architectural evolution and scaling of a high-throughput platform for a tier-one global financial institution. This role involves driving automation, influencing system design, and ensuring engineering excellence through rigorous standards and mentoring.Ideal candidates will have extensive experience...

Jefferies seeks a senior engineer to own the Equity Front Office development, delivering scalable, high-performance trading applications. You will work within a global team, designing robust systems and partnering with traders to translate requirements into robust software.Ideal candidates bring 10+ years in front-office development, 3+ years in...

Orbis Group in London is seeking a Senior Java Engineer to build and enhance front-office trading technology. You’ll develop pricing, risk, hedging and trading-logic components, and take ownership from requirements through delivery.The role combines improving existing production systems with building new modules from scratch, with a focus on Java, trading...

McGregor Boyall is seeking a Senior Java Developer for its London Electronic Trading engineering team. You will design low-latency Java applications, work with traders and quantitative teams, and help scale critical trading platforms across asset classes.Hybrid role with three days in the office, you will contribute to high-performance, distributed systems,...