java developer jobs in London

Areti Group | B Corp™ in the UK is recruiting a Java/Kotlin Developer to join a major public sector programme. You will design, implement and maintain backend services in Java and Kotlin, collaborating with cross‑functional teams.Experience in a UK Government environment is essential, with monthly travel to London, Leeds or Manchester and eligibility for...

LMAX is renowned for its high-performance, ultra-low latency (we measure in microseconds) exchange written in core Java. We constantly push technology further than most, especially in our greenfield projects, driving the financial industry in new directions. Developers are encouraged to constantly develop and learn new skills. Pair programming supports...

*This opportunity is hybrid in Heathrow. Please apply only if you are happy to commute. At mthree, we connect talented graduates with top-tier organizations, including leading investment banks and companies across insurance, travel, and more. We currently have a Software Developer (C++|Java| Python) role with a leading travel technology company. What You...

About FasanaraFounded 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...

mthree is recruiting a Software Developer to work on high-performance systems with 24/7 reliability. The role requires 1+ years in C++, Java, or Python and a UK work right. It is a hybrid position based near Heathrow with collaboration across BA, PM, and QA teams.You will contribute to design, development, and feature delivery while navigating Agile or...

Role Summary :We are seeking an experienced Java Full Stack Developer to join our Digital Asset development team. This is a hands‑on engineering role responsible for building end‑to‑end product experiences across modern web user interfaces and Java backend services that power institutional digital asset capabilities in a regulated financial services...

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life...

Job Title: Java Developer Rate: 525 per day inside ir35 Location: Remote Contract: 6 months rolling We're looking for an experienced Java Developer to join a remote development team working on a Home Office project, building and enhancing secure, scalable Java applications and services. You'll work across Java, Spring Boot, REST APIs and microservices,...

Java Full Stack Developer (Broker Dealer / Capital Markets)Join Capgemini’s Financial Services Business Unit within the Cloud & Custom Applications (C&CA) practice, where we Consult with Purpose. Continuously Evolve. Architect Tomorrow. We are seeking a talented Java Full Stack Developer to help deliver scalable, business-critical solutions for Broker...

Role:Principal / Senior Java Developer – Elite FinTech Rate:Up to £750 per day Location:London Working Pattern:Hybrid Contract:Contract The Role They are looking for an exceptionalPrincipal / Senior Java Developerto join a high-calibre engineering team, working alongside some of the industry's strongest developers, architects and technical leaders. This...

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...

Discover your future at CitiWorking at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.Job OverviewEngineer the future of global finance. At Citi, our Tech team...

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...

The Role Role: Principal / Senior Java Developer – Elite FinTech Rate:Up to£750 per day Location:London Working Pattern:Hybrid Contract:Contract They are looking for an exceptionalPrincipal / Senior Java Developerto join a high-calibre engineering environment, working alongside some of the industry's strongest developers, architects and technical...

DescriptionWe have an exciting opportunity for experienced Java developers to join our team!You will have a passion for software development and an excellent understanding of how to define and deliver solutions iteratively and collaboratively. You will be involved in all areas of delivery, with the technical gravitas to mentor and inspire the development...

Solytics Partners is a Global Analytics firm, recognized with multiple industry awards for innovation and excellence. Our team comprises experts with deep domain knowledge in risk, analytics, AI/ML, AML/FCC, and fraud. By converging this expertise with cutting‑edge technologies like AI, Machine Learning, Generative AI, and Large Language Models (LLMs), we...

Join to apply for the Junior Java Developer-Listed Derivatives role at eClerxJoin to apply for the Junior Java Developer-Listed Derivatives role at eClerxDirect message the job poster from eClerx______________________________________________________________________Location: LondonType: Full-time/HybridDepartment:...

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...

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...

Kate Matthews Solutions is actively seeking mid to senior level Java Developers to join a fast-growing FinTech in the UK. This role centers on rebuilding the tech stack using Kafka and Kafka Streams to create a scalable backbone for rapid growth.You will solve real-world problems in small, agile, cross-functional teams, focusing on large-scale distributed...