java jobs in London

**Software Engineer III (Java & JavaScript)****Do you enjoy designing and developing scalable, high-performance applications using Java and JavaScript?****About the team:**You will join the Identity & Access Management team, which owns the authentication and authorisation infrastructure underpinning Elsevier’s global product suite. We build and operate a...

A trusted UK Central Government technology programme is looking for an experienced Senior Java Developer to join their high-impact delivery team. Working on mission-critical systems that support national infrastructure, this role offers the chance to work fully remotely on challenging and technically rich work across legacy and modern platforms.You will be...

Founded in 2011, Fasanara is a global asset manager and technology platform. We manage c. USD 6 billion AUM (as of December 31, 2025) in Fintech strategies on behalf of pension funds and insurance companies in Europe and North America. With c.110 employees globally, we are a pioneer investor in Fintech Lending, enabling Real Economy Impact. Fasanara manages...

Java, Spring Boot and Cloud Platforms(AWS, Azure and GCP) I am currently working with a leading software software consultancy working with the government for a Senior Java Engineer. This role involves mentoring junior engineers, collaborating with cross-functional teams, and driving the adoption of best practices in software...

Senior Java Engineer London | Hybrid Myn is recruiting for a major financial services organisation in London and is looking for experienced Senior Java Engineers to join teams building and evolving large‑scale, business‑critical technology platforms. This is an opportunity to work in an engineering environment where performance, resilience and quality...

Our banking client is looking for an experienced Java / Spring Boot Engineer to join a high-performing technology team, working on the development and enhancement of critical banking applications and services.The successful candidate will have strong experience building scalable, secure and high-performance Java applications, with a focus on Spring Boot,...

We’re looking for a Java Swing Developer to join a team working on a high-performance desktop trading platform. Working on a mission-critical system that supports FX Cash, deposits, futures, swaps, and more. The platform is rich in functionality, handles heavy loads with low latency, and underpins key trading and sales workflows.You’ll help maintain and...

Salary - £115'000 - plus bonus and benefitsTech Stack: Java 11+, Spring/Spring Boot, multi-threading, profiling, performance tuning, RMI, Capital Markets, TDD, BDD, Microservices,Harrington Starr have partnered with an innovative Software Vendor specialising in building SaaS applications for post-trade technology and Capital Markets. We're looking for a...

Tech Stack: Java and low-latency, JVM engineering, FX, eFX, Crypto, hedging and risk-management systems, Aeron, FIX connectivity, Linux, Multithreading,Harrington Starr have partnered with an innovative to Software Developer specialising in Crypto, FX and eFX currently developing high-performing trading systems. We’re looking for a skilled Java or Quant...

£90k, 20% Bonus, 3 days a week in the office. Quant Capital is urgently looking for a Junior Software Engineer with Core Java skills to join our high profile client. Our client is a well known Systematic Trading Hedge Fund. They like technology especially the opensource variety as well as scalability and robust performance (much like their track record)....

We are looking for an experienced Senior Java Developer to join the engineering team at Xantura, helping to design, build, and evolve our cloud-based data and analytics platform used by local authorities and public sector organisations across the UK.This is a hands-on senior engineering role focused on developing scalable backend systems, improving platform...

About The Company Interactive Brokers Group, Inc. (NASDAQ: IBKR), a member of the S&P 500, is a global financial services company headquartered in Greenwich, Connecticut, with offices in over 15 countries. Through its affiliates, Interactive Brokers provides automated trade execution and custody of securities, commodities, foreign exchange, and prediction...

Referment is working with a London-based technology company that builds data transparency and accountability tools for the investment management industry. Its platform aggregates and validates cost and holdings data from across the investment supply chain, allowing pension funds, asset managers and other service providers to share and interrogate validated...

A well-established financial markets firm is seeking a Senior Java Trading Systems Developer to support the continued development of its electronic trading technology.This is a hands-on engineering position focused on building and improving systems used to manage orders and trading activity across multiple markets and venues. The successful candidate will...

About the team:You will join the Identity & Access Management team, which owns the authentication and authorisation infrastructure underpinning Elsevier’s global product suite. We build and operate a highly available identity platform that integrates with multiple identity providers, entitlement services, and downstream APIs, running on AWS ECS and...

At Legal & General, we're looking for an experienced Engineering Manager to lead and develop a high-performing engineering team while remaining hands‑on in the delivery of modern software solutions. This is an exciting opportunity to shape technical direction, drive engineering excellence, and create an environment where people can thrive. You'll work...

About The Company Interactive Brokers Group, Inc. (NASDAQ: IBKR), a member of the S&P 500, is a global financial services company headquartered in Greenwich, Connecticut, with offices in over 15 countries. Through its affiliates, Interactive Brokers provides automated trade execution and custody of securities, commodities, foreign exchange, and prediction...

This range is provided by Client Server. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Client Server Tech Recruiter - Software Engineering at Client-Server Engineering Manager (Java AI) London / WFH to £140k Are you a technical leader with a strong...

Role OverviewThis role focuses on building and enhancing electronic trading systems used in fast-paced capital markets environments. You’ll develop backend services that support high-volume trading, working closely with product and trading stakeholders.Key ResponsibilitiesDevelop backend services using JavaEnhance performance, scalability, and...

Our banking client is looking for an experienced Java / Spring Boot Engineer to join a high-performing technology team, working on the development and enhancement of critical banking applications and services.The successful candidate will have strong experience building scalable, secure and high-performance Java applications, with a focus on Spring Boot,...