Senior Java Developer jobs in Southbury

eFinancialCareers

Discover your future at Citi Working 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 Overview Engi

We are hiring for one of our clients Java Developer – Payments Engineering Experience Multiple roles across: 7-10 years and 10+ years (Senior level) Role Summary We are looking for an experienced Java Developer with strong exposure to the Payments domain to design, build, and enhance applications su

We are looking for a Java Developer with experience in capital markets and risk systems , working on backend services, APIs and data processing components supporting trading, risk calculations and reporting. Key Responsibilities Develop and enhance Java-based backend applications for trading and ris

McGregor Boyall

£7,200 - £8,400 /year

Senior Java Backend Developer (Contract) Location: London (Hybrid) Rate: £650 - 700 per day (likely inside IR35) A leading global financial institution is seeking a Senior Java Backend Developer to join a high-performing engineering team, delivering scalable, data-intensive backend systems that supp

We’re looking for a Java Full Stack Developer (Senior/Lead level) with strong experience in Java 8+, Spring Boot, Microservices, and CI/CD (Docker/Kubernetes) . 📍 Location: Hybrid – 2 days/week in Reading or Croydon 💼 Type: Permanent 💰 Salary: Up to £70K + 10% bonus 🔐 Requirement: SC Eligible Th

IDAM Back-end Java Developer - SC Cleared | £500 - £535 We're working with a global tech powerhouse delivering mission-critical digital transformation for the UK public sector on this exciting opportunity. We are seeking a high-caliber Senior Java Developer with deep IDAM expertise to spearhead a ma

About FairPlay SportsMedia We’re a sports media network, focused on building and nurturing a portfolio of highly engaged and connected communities of sports fans and bettors to create value for our partners. We empower sports fans with real-time intelligence, premium independent content, and unique

Join Barclays as a Java Software Developer, responsible for designing and developing systems that generate pricing quotes, automating spreadsheet-driven workflows, and building client automation solutions. In this role, you will collaborate with the existing engineering team to enhance and maintain

We are seeking a Java Developer to join our FIF team. In this role you will assist in development and delivery of software solutions while collaborating with peers to define software requirements, devise solution strategies, and ensure seamless integration and alignment with business objectives. To

IDAM Back-end Java Developer - SC Cleared | £500 - £535 We're working with a global tech powerhouse delivering mission-critical digital transformation for the UK public sector on this exciting opportunity. We are seeking a high-caliber Senior Java Developer with deep IDAM expertise to spearhead a ma

Citi

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global mark

Senior Java Fullstack Developer - VP level - Investment Technology / Finance An industry leading global financial and technology organisation are looking for Senior Java Software Engineers with 7+ years’ experience, who have some experience in React or similar, plus modern JavaScript/TypeScript, who

Reed

Senior Java Engineer Payments Location: London two days per week Contract Length: Minimum twelve months Pay: £525 - £625 per day An experienced Senior Java Engineer is required to support the delivery of large-scale enterprise payments platforms within a modern cloud-based architecture. This is a ha

We are looking for a Java Developer with experience in capital markets and risk systems , working on backend services, APIs and data processing components supporting trading, risk calculations and reporting. Key Responsibilities Develop and enhance Java-based backend applications for trading and ris

Java Multithreading Developer – Trading/Risk Platforms Type: Contract /Permanent role Location : London, UK (Hybrid) We’re hiring an experienced Java Developer to work on backend systems supporting trading, risk calculations, and reporting in a capital markets environment. Key Skills: Core Java (8/1

London | Hybrid (3 days onsite) Top-tier Investment Bank (Global Markets) £160k-£100k base + bonus + benefits Build the engine behind a $trillions-per-day market This isn't another backend Java role. This is about sitting on the critical path of FX pricing , where microseconds matter, decisions are

🌍 About Keyrus Keyrus is a global consulting and technology company focused on making data matter — truly matter — from a human perspective . Founded in 1996, Keyrus operates in 28+ countries across 5 continents , with more than 3,300 people worldwide . Our strength comes from combining deep expert

London | Hybrid (3 days onsite) Top-tier Investment Bank (Global Markets) £160k-£100k base + bonus + benefits Build the engine behind a $trillions-per-day market This isn't another backend Java role. This is about sitting on the critical path of FX pricing , where microseconds matter, decisions are

About Keyrus Keyrus is a global consulting and technology company focused on making data matter — truly matter — from a human perspective . Founded in 1996, Keyrus operates in 28+ countries across 5 continents , with more than 3,300 people worldwide . Our strength comes from combining deep expertise

eFinancialCareers

Senior Java Backend Developer (Contract) Location: London (Hybrid) Rate: £650 - 700 per day (likely inside IR35) A leading global financial institution is seeking a Senior Java Backend Developer to join a high-performing engineering team, delivering scalable, data-intensive backend systems that supp