Senior Java Developer jobs in Harlow

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 Us:- Net2Source Inc. is one of the fastest growing diversity certified global workforce solutions companies with an unprecedented YoY growth of over 100% for last 6 years working with Fortune 1000/Global 2000 across 34 countries and 5 continents including North America, South America, Europe,

Role : Senior Java Fullstack Engineer Type : 1year Fixed Term Contract ( Chance for more extension) Location : London (Hybrid) 8+ years of experience in full stack development. Strong proficiency in Java , React, Spring Boot , and Microservices Architecture . Mandatory hands-on experience with React

Location: London, UK (Hybrid - 3 days onsite) Contract: Initial 12-month contract Rate: Up to £800/day (Inside IR35) We are seeking a Senior Quantitative Developer to join a high-performing electronic FX (eFX) technology team within a leading global investment bank. This role focuses on the design,

About Citi As the world’s most global bank, Citi gives you the tools to be a trailblazer. We’re not just building technology; we’re building the future of banking. With thousands of employees located around the globe, we are an international team encompassing a broad range of teams, roles, and cultu

Senior Java Developer | £85,000 - £95,000 We're working with a leading financial services technology vendor on this exciting opportunity. Are you ready to spearhead a flagship platform rebuild at the heart of London’s fintech scene? This is your chance to architect and deliver high-performance, auto

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

We are recruiting for a Senior Java / Kotlin Engineer. On-site: 2 dpw in Leeds Or London Key skills: strong experience in Java or Kotlin (back-end), and comfortable with TDD (test-driven development). Who We Are: AND Digital are a tech company focused on accelerating digital delivery and dedicated t

We are recruiting for a Senior Java / Kotlin Engineer. On-site: 2 dpw in Leeds Or London Key skills: strong experience in Java or Kotlin (back-end), and comfortable with TDD (test-driven development). Who We Are AND Digital are a tech company focused on accelerating digital delivery and dedicated to

Job Req Id 26956509 Location(s) London, England, United Kingdom Job Type Hybrid Posted Apr. 21, 2026 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 o

Citigroup

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 marke

About this role If you are a seasoned Java Engineer passionate about building world-class trading systems, we would love to hear from you! You should be eager to collaborate with a team that values innovation and quality. In the role of Senior Java Developer at BlackRock's Aladdin core, you will dev

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

Sanderson

£40,000 - £60,000 /year

Software Engineer Our new client are expanding their engineering capability and are looking for talented Software Engineers with a strong focus on Java to join a growing team. If you thrive in modern engineering environments and enjoy building scalable, high-quality services, this role will put your

Citigroup

Java (Kotlin) Developer (Agile, Test-Driven) – VP 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 d

Java Multi-threading Developer – Trading / Risk Platforms 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 e

Citi’s Markets technology team is growing at lightning speed, and we’re looking for talented technologists to help build the future of global banking. Our teams are creating innovations used across the globe. As the world’s most global bank, Citi provides an opportunity to touch every corner of the

Citigroup

Citi’s Markets technology team is growing at lightning speed, and we’re looking for talented technologists to help build the future of global banking. Our teams are creating innovations used across the globe. As the world’s most global bank, Citi provides an opportunity to touch every corner of the

Job Req Id 26956677 Location(s) London, England, United Kingdom Job Type Hybrid Posted Apr. 20, 2026 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 o