Java Developer - Belfast, Northern Ireland

Company IconRandstad Digital
Location IconBelfast

Role: Java DeveloperType: PERM/FTELocation: Belfast, Northern IrelandWorking Model: HybridCore Responsibilities:Develop:...Read More>>.

Posted: September 14th, 2026
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Full Stack Java Developer – Fintech

Company IconQuant Capital
Location IconLondon

Overview In this role you will build and deliver front-end and back-end solutions for a tech-driven trading platform. You will work closely with cross-functional teams to shape product offerings and impact business outcomes. The environment...Read More>>.

Posted: September 14th, 2026
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Core Java Developer – Fintech

Company IconQuant Capital
Location IconLondon

Overview In this role you will build and evolve a high-performance Java platform for a pioneering fintech trading firm. You’ll work within an agile, test-driven environment to deliver business functionality with visible impact on the prod...Read More>>.

Posted: September 14th, 2026
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Senior Java Developer-AWS-Microservices (Lead I - Software Engineering)

Company IconUST Global
Location IconNottingham

Overview You will design and build high-quality Java applications in a hybrid Nottingham environment, collaborating with product teams to turn ideas into scalable features. You will own and drive development of team-owned components within...Read More>>.

Posted: September 14th, 2026
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Junior Java Developer –Python, Ruby, Fintech50

Company IconQuant Capital
Location IconLondon

Overview As a Junior Java Developer at Quant Capital, you join a fintech-focused tech team working with a high-profile client. You’ll contribute across the stack, emphasize core Java development, and support release management and infrast...Read More>>.

Posted: September 14th, 2026
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Senior Java Developer - Credit Risk Technology, Vice President

Company IconCitigroup
Location IconLondon

Overview In this Senior Java Developer role, you will lead and implement advanced applications within Citi’s Derivatives Credit Risk Technology Team. You’ll own complex software delivery across the full SDLC, collaborating with a global...Read More>>.

Posted: September 14th, 2026
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Software Engineer II - Full Stack React/Java Developer

Company IconJP Morgan Chase
Location IconBournemouth

Overview In this Software Engineer II role at JPMorganChase within Commercial and Investment Banking, you contribute to designing, developing, and debugging secure, scalable software as part of an agile team. You work on end-to-end software...Read More>>.

Posted: September 14th, 2026
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Java Developer - Trading Systems

Company IconClient Server
Location IconNewcastle upon Tyne

Overview As a Java Developer in a growing professional services firm, you will help transform a complex C++ legacy trading system into a modern Java-based solution. You’ll work closely with Front Office trading teams and fellow engineers...Read More>>.

Posted: September 14th, 2026
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Senior Full Stack Java Developer

Company IconVersion 1
Location IconLondon

Overview In this role you will design, develop, test and maintain cloud-based software within Version 1’s Digital & Cloud Practice. You will provide technical leadership to deliver scalable, secure solutions in agile environments and coor...Read More>>.

Posted: September 14th, 2026
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Senior Java Developer

Company IconGlobal
Location IconLondon

Overview As a Senior Java Developer you will shape backend services for our ad-serving platform, collaborating with product and design to deliver scalable, reliable systems. You’ll lead technical decisions, mentor peers, and drive automat...Read More>>.

Posted: September 14th, 2026
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Senior Java Developer

Company IconNTT DATA
Location IconLondon

Overview As a Senior Java Developer at NTT DATA, you will design, build, and maintain cloud-native Java applications using Spring Boot and microservices. You will shape scalable REST-based services and robust CI/CD pipelines, collaborating...Read More>>.

Posted: September 14th, 2026
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Senior Java Developer - London - Fintech

Company IconAdaptive Financial Consulting
Location IconLondon

Overview In this role you will design and develop Java-based trading software for Adaptive’s front-office technology platform. You will work within cross-functional teams to deliver high-performance solutions that underpin capital markets...Read More>>.

Posted: September 14th, 2026
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Java Developer in Test SDET - Finance Consultancy

Company IconClient Server
Location IconLondon

Overview In this role, you will join a global technology consultancy to deliver high-impact, client-facing testing work. You will shape and implement scalable test automation across modern platforms, helping teams raise quality and producti...Read More>>.

Posted: September 14th, 2026
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Contract Senior Java Developer – Data

Company IconQuant Capital
Location IconLondon

Overview In this contract role you will build and enhance Java backend services that power the data platform, while owning lighter Python ETL tasks to feed PostgreSQL data stores. You will work closely with a lean team to improve reliabilit...Read More>>.

Posted: September 14th, 2026
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Frontend Java Developer – Fintech

Company IconQuant Capital
Location IconLondon

Overview In this role you will design and implement frontend features for a high‑growth tech-driven trading platform. You’ll work closely with cross‑functional teams to deliver business functionality and shape the product vision in a...Read More>>.

Posted: September 14th, 2026
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Core Java Developer Fintech High Freq Trading

Company IconQuant Capital
Location IconLondon

Overview In this role you will shape a high-performance, distributed Java platform used in a fast-paced FX trading environment. You’ll work with traders and developers to enhance a complex, low-latency, multi-threaded system, spanning fro...Read More>>.

Posted: September 14th, 2026
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Java Developer Algo Trading 140k

Company IconQuant Capital
Location IconLondon

Overview In this role you will help build a brand-new, low-latency trading platform within a cross-asset team. You’ll work closely with the Head of Trading and the Quant Team to design and implement trading algorithms in Java, while also...Read More>>.

Posted: September 14th, 2026
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eTrading Rates Strategist / Java Developer (Associate)

Company IconMcGregor Boyall
Location IconLondon

Overview In this front-office associate role within the Global Markets technology function, you will design and enhance algorithmic trading strategies and electronic trading platforms for Rates products. You’ll work closely with traders,...Read More>>.

Posted: September 14th, 2026
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Manager, Java Developer, Solutions, Engineering, AI & Data

Company IconDeloitte
Location IconNewcastle upon Tyne

Overview As a Java Developer in Deloitte’s Technology & Transformation, you will design, build, and sustain high-quality Java-based solutions for diverse client projects. You’ll work within cross-functional teams to drive digital transf...Read More>>.

Posted: September 14th, 2026
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Core Java Developer – Quant Trading

Company IconQuant Capital
Location IconLondon

Overview In this role you will build and evolve a high-impact Java platform for a fast-moving trading technology firm. You will work with cross-functional teams to design and implement business features that shape the product’s future. Th...Read More>>.

Posted: September 14th, 2026
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Core Java Developer– JVM, Multithreading, TDD, Spring

Company IconQuant Capital
Location IconLondon

Overview In dieser Rolle arbeiten Sie an einer hochverfügbaren, verteilten In-MMemory-Lösung im Hochfrequenzhandel, entwickeln Java-basierte Kernanwendungen und gestalten Systemarchitektur gemeinsam mit cross-funktionalen Teams. Sie arbei...Read More>>.

Posted: September 14th, 2026
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Senior Fullstack Java Developer

Company IconNexus Jobs
Location IconLondon

Overview In this role you lead the technical execution for a fintech-focused product, driving fast iterative development in an Agile environment. You work across iOS, Android and web platforms to deliver a high-performance app. You will coo...Read More>>.

Posted: September 14th, 2026
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Junior Core Java Developer Big Data Fintech

Company IconQuant Capital
Location IconLondon

Overview As a Junior Core Java Developer you will work hands-on on a greenfield B2C wealth management platform and ongoing client-modifications within a fast-paced fintech environment. You’ll collaborate with traders, sales and technologi...Read More>>.

Posted: September 14th, 2026
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Junior Java Developer – Fintech

Company IconQuant Capital
Location IconLondon

Overview In this Junior Java Developer role, you join a fintech startup building an innovative rewards platform for merchants and consumers. You will contribute to a greenfield project alongside a mobile app team, using Core Java and fronte...Read More>>.

Posted: September 14th, 2026
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Java Developer – Algo Trading

Company IconQuant Capital
Location IconLondon

Overview In this role you will join a London-based trading firm’s low-latency team to design and implement Java-based trading algorithms. You’ll help build a greenfield, low-latency trading platform and connect to financial exchanges, s...Read More>>.

Posted: September 14th, 2026
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Equities Technology (Java Developer) - VP

Company IconCitigroup
Location IconBelfast

Overview In this role you will advance Citi’s Global Market Data platform for the global equities business, focusing on low-latency data delivery and system enhancements. You will collaborate with cross-functional teams including producti...Read More>>.

Posted: September 14th, 2026
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Team Lead Java Developer – J2EE, Spring, Maven Tomcat

Company IconQuant Capital
Location IconLondon

Overview As Team Lead Java Developer, you will steer the development of a web-based platform built on Java AWS. You’ll balance stabilising the current stack with delivering greenfield features, guiding a team of junior engineers and shapi...Read More>>.

Posted: September 14th, 2026
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Java Developer– Spring, Hibernate, SQL, Web Get Banking

Company IconQuant Capital
Location IconLondon

Overview In this role you will develop Java-based wealth management and trading applications, contributing to both client projects and new features in greenfield product sets. You’ll work within a financial technology environment that ble...Read More>>.

Posted: September 14th, 2026
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Full Stack Java Developer

Company IconVersion 1
Location IconEdinburgh

Overview As a Senior Kotlin Developer in Version 1's UK Digital & Cloud Practice, you will help design, build, and maintain cloud-based software with a focus on secure, scalable solutions. You lead technical work within an agile team, ownin...Read More>>.

Posted: September 14th, 2026
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Core Java Developer-Contract – Trading

Company IconQuant Capital
Location IconLondon

Overview In this contract role, you will apply your Core Java expertise to a fast-paced trading tech platform, enabling high-scale, data-driven financial services. You’ll work within an agile, test-driven environment to design and impleme...Read More>>.

Posted: September 14th, 2026
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Core Java Developer Big Data Trading

Company IconQuant Capital
Location IconLondon

Overview In this role you will work on a green-field, enterprise-grade platform in a fast-paced fintech environment. You will be hands-on with core Java, shape architecture, and mentor junior developers while collaborating with the CTO and...Read More>>.

Posted: September 14th, 2026
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Software Engineer Java Software Developers (SC Cleared)

Company IconSanderson Recruitment
Location IconLondon

Overview In this role you will design, develop and maintain secure Java applications for mission-critical defence projects. You will work within Agile teams to deliver cloud-native solutions on AWS, with containerised deployments. You’ll...Read More>>.

Posted: September 14th, 2026
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Core Java Developer Trading Technology

Company IconQuant Capital
Location IconLondon

Overview As a Senior Core Java Developer in a fast-paced post-trade tech environment, you will help shape the architecture and deliver integration solutions for a global trading business. You will design, prototype, and evaluate tools to su...Read More>>.

Posted: September 14th, 2026
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Scala / Java Developer Fintech / Blockchain Cryptocurrency

Company IconQuant Capital
Location IconLondon

Overview In this role you will design, develop and deploy high-quality software for a greenfield fintech project focused on cryptographic technology and distributed protocols. You will work with cross-functional teams to prototype architect...Read More>>.

Posted: September 14th, 2026
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Low latency Java Developer

Company IconQuant Capital
Location IconLondon

Overview In this role you will help design and implement new trading algorithms in Java, support a greenfield low-latency trading platform, and ensure robust connectivity to financial exchanges. You will work closely with the Head of Tradin...Read More>>.

Posted: September 14th, 2026
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Senior C++ / Java Developer

Company IconLondon Stock Exchange Group
Location IconLondon

Overview In this role you design, develop, and deliver robust C++ and Java software for a defined product area, owning medium-to-large components. You collaborate with architects, product managers, and delivery teams to translate requiremen...Read More>>.

Posted: September 14th, 2026
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Low latency Java Developer – Algo Trading

Company IconQuant Capital
Location IconLondon

Overview You will join a London-based quant prop trading firm to help design and build low-latency trading solutions. In collaboration with the Head of Trading and the Quant Team, you’ll develop algorithms in Java, contribute to a greenfi...Read More>>.

Posted: September 14th, 2026
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Senior Consultant, Java Developer, Solutions, Engineering, AI & Data

Company IconDeloitte
Location IconBelfast

Overview You will design, develop and maintain Java-based solutions for clients within a cross-functional team. Your work supports the delivery of innovative, data-driven services at scale, helping clients navigate change and drive transfor...Read More>>.

Posted: September 14th, 2026
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Java Development Manager – Fintech50

Company IconQuant Capital
Location IconLondon

Overview In this role you will lead a growing engineering group to evolve the core platform and greenfield systems for a global fintech in the invoice finance space. You will mentor a 15–20 person team, collaborate with product and suppor...Read More>>.

Posted: September 14th, 2026
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Liferay with Java Developer - Surrey

Company IconNexus Jobs
Location IconRedhill

Overview In this role you will design and develop Java Enterprise applications with a focus on Liferay portals, contributing to client projects from Surrey. You will work within a team, lead varying team sizes, and ensure delivery on time w...Read More>>.

Posted: September 14th, 2026
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Lead Java Developer (VP)

Company IconCitigroup
Location IconBelfast

Overview In this role you drive the technical design, development and optimization of Citi’s regulatory reporting framework and data pipelines, focusing on onboarding new regulations. You’ll lead a team of engineers within an Agile sett...Read More>>.

Posted: September 14th, 2026
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Java Developer – Algo Development Technology (Equities)

Company IconMillennium Management
Location IconLondon

Overview In this role you will build and evolve real-time, high-performance algorithmic trading systems for equities. You’ll collaborate with technologists and trading teams to enhance execution capabilities that support portfolio manager...Read More>>.

Posted: September 14th, 2026
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Lead C++ / Java Developer

Company IconLondon Stock Exchange Group
Location IconLondon

Overview As a hands-on senior engineer, you will design, build, and operate mission-critical FX market infrastructure using C++ and Java. You’ll own delivery of high‑performance components, shaping architecture and platform evolution. Y...Read More>>.

Posted: September 14th, 2026
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Senior Java Developer - Fixed Income Algo Technology, VP

Company IconCitigroup
Location IconLondon

Overview Join Citi’s Fixed Income Algo team in EMEA to build and evolve the high-performance, low-latency algo trading platform used by internal market-making and trading desks. You will collaborate with traders, quants and product manage...Read More>>.

Posted: September 14th, 2026
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Contract Senior Java Developer – Data/Marketmaking

Company IconQuant Capital
Location IconLondon

Overview In this contract role, you will build and enhance Java backend services that power trading and data workflows. You will own Python-based data ingestion tasks to support the data platform and work with PostgreSQL for data validation...Read More>>.

Posted: September 14th, 2026
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Java Developer – Low Latency

Company IconQuant Capital
Location IconLondon

Overview In this role you will help design and build trading algorithms and a new low-latency platform for a London-based quant-backed trading house. You’ll collaborate with the Head of Trading and the Quant Team to translate trading requ...Read More>>.

Posted: September 14th, 2026
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Backend Java Developer (Python)

Company IconMethods Consulting
Location IconLondon

Overview In this Back End Developer role, you will diagnose and fix live production issues in Java-based systems, ensuring stable, well-tested changes. You’ll work with 2nd Line Operations, QA, and feature teams to triage incidents and de...Read More>>.

Posted: September 14th, 2026
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SC Cleared Java Developer

Company Iconfortice
Location IconLondon

Overview In this role you will design, develop and deliver multi-tier applications for Public Sector and National Security projects. You will contribute across client and server sides, aligning with agile practices and enterprise-scale arch...Read More>>.

Posted: September 14th, 2026
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Java Developer – Equity derivatives- Hedge Fund

Company IconQuant Capital
Location IconLondon

Overview In this role you will help build and enhance the distributed pricing platform for Equity Derivatives, enabling continuous, firm-wide risk and P&L. You join a global, cross-functional team of developers and quants, contributing to g...Read More>>.

Posted: September 14th, 2026
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Mid-Level Java Developer

Company IconHalliburton
Location Icon

Overview In this role you will design, develop, and maintain subsurface evaluation solutions for the energy sector as part of the Neftex Technical Services Team. You will contribute to building reliable Java-based desktop and web applicatio...Read More>>.

Posted: September 14th, 2026
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