Senior Java Engineer – Real‑Time Payments (Hybrid)

Company IconFynity
Location IconLondon

A leading payments consultancy in London is seeking a Principal Software Engineer to design scalable, high-availability systems. You will work with Java 17+, Spring WebFlux, and Kafka in a hybrid environment, contributing to real-time transaction sol...Read More>>.

Posted: June 6th, 2026
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Senior Java Developer

Company IconiO Associates
Location IconLondon

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...Read More>>.

Posted: June 6th, 2026
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FX eTrading Java Engineer - VP Level

Company IconCiti
Location IconLondon

A leading global bank in Greater London seeks a qualified individual for FX trading systems implementation. The role involves collaborating with trading and quant teams to design system architecture, alongside hands-on technical implementation. Key s...Read More>>.

Posted: June 6th, 2026
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Senior Java Engineer – Developer Tools & Strategy

Company IconCitigroup Inc.
Location IconLondon

Citigroup Inc. is seeking a motivated engineer to join the Technology Application Strategy team in Greater London. This role is key in developing tooling solutions for Citi's global developer community using Java and SpringBoot technologies....Read More>>.

Posted: June 6th, 2026
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Senior/Principal Java Engineer - Low Latency

Company IconGrid Dynamics
Location IconLondon

We're looking for Senior and Principal Java Developers with a strong background in low‑latency systems to join us on a high‑performance trading and real‑time data project, for a major financial institution.You’ll be joining an en...Read More>>.

Posted: June 6th, 2026
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Senior Java Engineer — FX Payments Platform

Company IconJPMorganChase
Location IconLondon

A leading financial services company in London is seeking a skilled Software Engineer to join their team. You will execute creative software solutions and develop high-quality production code while collaborating with talented colleagues. The ideal ca...Read More>>.

Posted: June 6th, 2026
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Java (Kotlin) Developer (Agile, Test-Driven) AVP

Company IconCiti
Location IconLondon

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 ma...Read More>>.

Posted: June 6th, 2026
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Lead Java Engineer - Equities Platform, Driving Innovation

Company IconFairygodboss
Location IconLondon

Fairygodboss is seeking a Lead Software Engineer to join our agile team in London. This role involves collaborating with product owners and engineers to develop innovative technology products within the Equity Derivatives Group.The ideal ca...Read More>>.

Posted: June 6th, 2026
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D365 Performance Engineer — Azure & Power Platform

Company IconJava Script Works
Location IconLondon

Java Script Works is seeking a Dynamics D365 Performance Engineer to focus on managing performance in D365 implementations. This contract position is based in London, United Kingdom, and requires expertise in D365 CE / CRM, Power Platform, and Azu...Read More>>.

Posted: June 6th, 2026
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Senior Java Engineer - Trading Platform, Low-Latency

Company IconCoinDesk
Location IconLondon

CoinDesk in the United Kingdom seeks a Java Developer to enhance the performance of its trading systems. The role involves designing reliable, low-latency code and improving system stability through automation in a collaborative environment....Read More>>.

Posted: June 6th, 2026
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Principal Java Engineer - Retail

Company IconLa-Fosse-1
Location IconLondon

Principal Java Engineer (Individual Contributor) 6-Month Contract | Outside IR35 | Paddington (3 days/week) We are partnering with a leading UK retail organisation on a significant payments and platform transformation. We seek a P...Read More>>.

Posted: June 6th, 2026
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Principal Java Engineer – Payments Platform (Hybrid)

Company IconLa-Fosse-1
Location IconLondon

La-Fosse-1 is looking for a Principal Java Engineer for a 6-month contract based in Paddington. This hands-on role will involve designing and developing scalable backend services for secure payment transactions while being part of a dynamic engine...Read More>>.

Posted: June 6th, 2026
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Principal Java Engineer – Retail

Company IconLa Fosse Associates
Location IconLondon

Principal Java Engineer (Individual Contributor)6-Month Contract | Outside IR35 | Paddington (3 days/week) We are partnering with a leading UK retail organisation on a significant payments and platform transformation. We seek...Read More>>.

Posted: June 6th, 2026
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Lead Engineer, Risk Technology — High-Performance Java

Company IconCoinDesk
Location IconLondon

CoinDesk is seeking an experienced Java backend engineer to join the Risk Engineering team in Greater London. The ideal candidate will have over 10 years of Java experience, strong ownership skills, and the ability to thrive in dynamic environment...Read More>>.

Posted: June 6th, 2026
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Senior Consulting Engineer (Armakuni Network - Contractor... in London - Armakuni

Company IconJava Script Works
Location IconLondon

Senior Consulting Engineer (Armakuni Network - Contractor) London, United Kingdom Posted 11 months ago Tech stack Node.js Amazon AWS Python GCP Java React...Read More>>.

Posted: June 6th, 2026
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Senior Platform Engineer - Infra-as-Code & Observability

Company IconJava Script Works
Location IconLondon

Requirements Experience with infrastructure as code. Hands-on experience coding, ideally in Python, Go, or Typescript with a focus on clean, maintainable code. Experience with observability tools and inci...Read More>>.

Posted: June 6th, 2026
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Technical Solution Architect — Cloud & Full-Stack Lead London

Company IconJava Script Works
Location IconLondon

Technical Solution Architect – Capgi London, United Kingdom Posted 12 months ago Tech Stack JavaScript Angular React Java Python TypeScript AWS...Read More>>.

Posted: June 6th, 2026
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React.JS Developer - Hedge Fund - Typescript in London - Quant Capital

Company IconJava Script Works
Location IconLondon

React.JS Developer – Hedge Fund – Typescript £120k Plus BonusQuant Capital is urgently looking for a React.JS Developer to join our high profile client. Our client is a $2 billion strong quant hedge fund with performance figures of...Read More>>.

Posted: June 6th, 2026
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Software Engineer - C/C/++/ C#/ Python

Company IconKeysight Technologies SAles Spain SL.
Location IconCity of Edinburgh

Overview Keysight is at the forefront of technology innovation, delivering breakthroughs and trusted insights in electronic design, simulation, prototyping, test, manufacturing, and optimization. Our ~15,000 employees create world‑cl...Read More>>.

Posted: June 6th, 2026
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Adobe LiveCycle Developer: Dynamic Forms & Workflows

Company IconJava Script Works
Location IconLondon

A software development company in London is seeking an experienced Adobe Livecycle Developer to create and maintain dynamic PDF forms and process workflows. The ideal candidate will have a minimum of 2 to 3 years of experience with Adobe Livecycle, J...Read More>>.

Posted: June 6th, 2026
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Senior Engineer - AWS/Java

Company IconXpertise Recruitment
Location IconLondon

OverviewSenior Engineer - AWS/Java | Xpertise RecruitmentWhat You'll Be DoingDesigning and building serverless features and microservices in AWSSolving complex engineering challenges with a strategic minds...Read More>>.

Posted: June 6th, 2026
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FX Front Office IT Developer — Java/C# (London)

Company IconCrédit Agricole SA
Location IconLondon

A leading banking institution in London is searching for a Developer to work closely with front office users in foreign exchange trading. Candidates should have experience with Java or C# and a strong desire to learn about financial services. Respons...Read More>>.

Posted: June 6th, 2026
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Full-Stack Engineer for Rapid Feature Delivery

Company IconJava Script Works
Location IconLondon

Feature Delivery Team As a member of this 4-5 strong team, you will leverage your expertise in TypeScript, Express, Node.js, Next.js, SQL, and React to build and enhance our platform. You should be comfortable assisting customers occasio...Read More>>.

Posted: June 6th, 2026
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Android Developer - Fintech (Kotlin/Java, MVVM)

Company IconQuant Capital
Location IconLondon

Quant Capital is searching for an Android Developer to join their fintech team in London. Candidates should have at least 3 years of Android development experience, be proficient in Kotlin and Java, and be familiar with MVP and MVVM design patterns....Read More>>.

Posted: June 6th, 2026
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Senior Java Engineer - Payment Schemes & Integrations

Company IconStarling Bank
Location IconLondon

Starling Bank is seeking a highly motivated engineer with at least 5 years' experience in Java to join the Payment Schemes team. In this role, you'll build and maintain the systems responsible for payment integrations, ensuring accuracy and stability...Read More>>.

Posted: June 6th, 2026
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C# .NET Developer - Banking / Fintech in London - Quant Capital

Company IconJava Script Works
Location IconLondon

C# .NET Developer – Banking / Fintech Location: London, United Kingdom Posted 10 months ago. This role is posted by partner Jooble. Tech Stack ASP.NET MVC Razor C# SQL...Read More>>.

Posted: June 6th, 2026
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Fintech C# .NET Developer | Greenfield Projects

Company IconJava Script Works
Location IconLondon

Java Script Works is seeking a C# .NET Developer to join our team in London, United Kingdom. This full-time position requires strong skills in ASP.NET MVC, C#, SQL, and JavaScript. The role involves greenfield development and working with data analyt...Read More>>.

Posted: June 6th, 2026
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AI Trainer - Advanced Java Developers

Company IconProlific
Location IconLondon

About Prolific Prolific is not just another player in the AI space – we are building the biggest pool of quality human data in the world. Over 35,000 AI developers, researchers, and organizations use Prolific to gather data from paid...Read More>>.

Posted: June 6th, 2026
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Senior Manager of Software Engineering - Java / React

Company IconJPMorgan Chase & Co.
Location IconLondon

Are you ready to make a difference and shape the future of technology? At JPMorganChase, you’ll be part of a dynamic team that thrives on innovation and collaboration. You’ll have the opportunity to grow your career, expand your skills, and...Read More>>.

Posted: June 6th, 2026
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Fullstack Engineer (Rapid delivery) in London - Blink - The Employee App

Company IconJava Script Works
Location IconLondon

Feature Delivery Team As a member of this 4-5 strong team, you will leverage your expertise in TypeScript, Express, Node.js, Next.js, SQL, and React to build and enhance our platform. You should be comfortable assisting customers occasio...Read More>>.

Posted: June 6th, 2026
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Core Trading Java Engineer - Low-Latency Systems

Company IconIG KnowHow
Location IconLondon

IG KnowHow is seeking a Software Engineer for their Core Trading team to build low-latency, high-throughput trading systems. The ideal candidate will possess strong Java skills and contribute to the performance of financial products.This ro...Read More>>.

Posted: June 6th, 2026
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Netsuite & Salesforce Engineer (Contract) – London

Company IconJava Script Works
Location IconLondon

Java Script Works is looking for a Netsuite Developer with experience in Salesforce to join their team in London, UK. Candidates should be proficient in JavaScript and SuiteScript, with strong knowledge of client-side technologies and web services. T...Read More>>.

Posted: June 6th, 2026
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Senior Lead Java Engineer – SwapClear Interfaces

Company IconLSEG
Location IconLondon

A leading global financial markets infrastructure provider is seeking a talented Senior Lead Java Engineer in London. This role involves leading the design and development of critical Java applications in an Agile environment. The ideal candidate sho...Read More>>.

Posted: June 6th, 2026
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Forward Deployed Engineer, AI in London - MongoDB

Company IconJava Script Works
Location IconLondon

Proficiency in Full-Stack Development Proficiency in building modern, full-stack applications with back end development in Python, Node.js, or Java, and front end development with frameworks like React, Angular or Next.js. Experi...Read More>>.

Posted: June 6th, 2026
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Front-Office FX IT Developer (Java/C#) – London

Company IconCrédit Agricole SA
Location IconLondon

Crédit Agricole SA is seeking a Developer based in London, UK. The role involves enhancing front-office systems for foreign exchange trading, managing project deliveries, and automating processes. Candidates should have a strong desire to learn, exc...Read More>>.

Posted: June 6th, 2026
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Low-Latency Java Lead Engineer for FinTech/Trading

Company IconHCLTech
Location IconLondon

HCLTech in Greater London is looking for a developer to lead the development and maintenance of low-latency Java applications. The ideal candidate has a Bachelor's degree in Computer Science or related field, proven experience in Java focusing on per...Read More>>.

Posted: June 6th, 2026
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Lead Developer/Tech Lead in London - Skillsearch Limited

Company IconJava Script Works
Location IconLondon

Lead Developer/Tech Lead London, United Kingdom Posted 10 months ago Tech stack web Lead Developer React TypeScript JavaScript Node.js Qualificati...Read More>>.

Posted: June 6th, 2026
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Frontend Developer - Shopify & E‑commerce

Company IconJava Script Works
Location IconLondon

Java Script Works is seeking a Front-end Developer to contribute to their Digital team and enhance the e-commerce development roadmap. The role demands strong skills in HTML, CSS, and JavaScript, with experience in Shopify. Ideal candidates should be...Read More>>.

Posted: June 6th, 2026
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Growth Engineer (MERN) Driving Rapid Experiments

Company IconJava Script Works
Location IconLondon

Skills and Experience Proven experience working in a software growth team or directly on product growth experiments. Strong skills across the MERN stack (Node.js, React, Express, MongoDB) are essential, along with familiarity with CI/C...Read More>>.

Posted: June 6th, 2026
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Senior Java Engineer — Scale Fintech Rewards Platform

Company IconBoogiesearch
Location IconLondon

A dynamic fintech company is seeking a Senior Java Engineer to build and scale their rewards platform. The role involves developing features, optimizing performance, and ensuring seamless integrations. Candidates should have over 4 years of Java back...Read More>>.

Posted: June 6th, 2026
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Senior Quant Trading Engineer - Java & Crypto

Company IconQuant Capital
Location IconLondon

Quant Capital is urgently hiring for a Senior Software Engineer specializing in Quant Trading based in London, United Kingdom. The role offers a competitive salary range of £150,000-200,000, plus a bonus of £50,000-80,000.The position foc...Read More>>.

Posted: June 6th, 2026
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Hybrid Full-Stack Engineer (Kotlin/Java, TypeScript)

Company IconCBTS
Location IconLondon

A prominent financial services firm in London is seeking a full stack developer skilled in Kotlin or Java, along with TypeScript. This role requires strong computer science fundamentals and excellent communication skills. Candidates should have 3-9 y...Read More>>.

Posted: June 6th, 2026
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Senior Back End Developer- Java

Company IconFairPlay Sports Media
Location IconLondon

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, pr...Read More>>.

Posted: June 6th, 2026
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Lead Product Engineer - TypeScript & Serverless

Company IconJava Script Works
Location IconLondon

Java Script Works is seeking a skilled engineer with a strong expertise in Typescript and serverless architecture to join their team. This role focuses on product work, offering the opportunity to shape and develop innovative solutions.Cand...Read More>>.

Posted: June 6th, 2026
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Software Engineer Python React Golang AWS

Company IconClient Server
Location IconCity of Westminster

Software Engineer Python React Golang AWS (PR/100687) London, England Salary: GBP75000 - GBP90000 per annum + benefits + shares Software Engineer / Full Stack Developer (Python React Golang AWS) London to £90k Are you a...Read More>>.

Posted: June 6th, 2026
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Java Enterprise Developer — 12-Month Contract (London)

Company IconExperis
Location IconLondon

Experis is seeking a Software Developer in London to design, develop, and support enterprise-grade applications with strong Java and web technologies expertise. You will work across the full software development lifecycle, building scalable soluti...Read More>>.

Posted: June 8th, 2026
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Windows 11 Deployment & VDI Specialist

Company IconXoriant
Location IconLondon

Xoriant is seeking a Modern Workplace Engineer in Greater London to support a large-scale Windows 11 laptop and VDI rollout program. This hybrid role focuses on device deployment, configuration, and troubleshooting using modern Microsoft technolog...Read More>>.

Posted: June 13th, 2026
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Java Developer - Algo Trading | Front Office

Company IconVertus Partners
Location IconLondon

Contact email:Job ref:JDAG/FF/0202Startdate:ASAPAre you a skilled Java developer with a passion for financial markets and algorithmic trading? This is a rare opportunity to step into a front-office role where you...Read More>>.

Posted: June 14th, 2026
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Low-Latency Java Engineer for High-Performance Trading

Company IconVertus Partners
Location IconLondon

A financial services company in Greater London is seeking an experienced Low Latency Java Engineer to join their team for critical Front Office projects. The role involves designing and developing high-performance applications while collaborating acr...Read More>>.

Posted: June 14th, 2026
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