Software Developer (Java/C++) A1 SC

Company IconOscar Associates (UK) Limited
Location IconCheltenham

Software Developer (Java/C++) - A1 SC Cleared | £53,000-78,000A leading engineering team is looking for a UKIC DV-cleared Software Developer to support the development of high-performance backend software solutions within...Read More>>.

Posted: September 18th, 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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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 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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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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Senior Java Developer

Company IconStanford Black
Location IconLondon

Overview In this role you will build new functionality for market data systems using Java 11 as part of a high-calibre team at a leading asset manager. You’ll join a tech-driven, risk-focused programme with close collaboration with trader...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 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 (Contract)

Company IconStanford Black
Location IconLondon

Overview In this role, you will contribute to building a new stress testing capability for the firm’s major market risk system, replacing a legacy platform with a cloud-first, next-gen solution. You will join a tech-driven team of highly...Read More>>.

Posted: September 14th, 2026
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Java Developer- London

Company IconQuant Capital
Location IconLondon

Overview In this core Java role, you’ll build and optimize high-performance backend services for an asset management platform. You join a lean, engineering-led team, collaborating with founders and senior engineers to shape scalable infra...Read More>>.

Posted: September 14th, 2026
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Java Developer (Cybersecurity)

Company IconLinuxRecruit
Location IconLondon

Overview In questa role you will build real, scalable backend systems for a cloud/networking/security platform. You’ll work with product and research teams to bring ideas from concept to production, delivering meaningful impact rather tha...Read More>>.

Posted: September 14th, 2026
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Fullstack Java Developer

Company IconAtos
Location IconGlasgow

Overview Join Atos to help modernize complex enterprise applications using Java, Spring Boot, React JS, and cloud technologies. You will work within an agile, collaborative team delivering large-scale digital transformation, API integration...Read More>>.

Posted: September 14th, 2026
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Senior Java Developer

Company IconLondon Stock Exchange Group
Location IconLondon

Overview In this role you will shape and deliver scalable backend services for a critical market-infrastructure platform, with a strong focus on AWS cloud-native development. You’ll work within a collaborative team to design, implement, a...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 Java Developer

Company IconVersion 1
Location IconLondon

Overview As a Senior Java Developer at Version 1, you design, build, and maintain high-performance Java applications that power customer-focused solutions. You will leverage AWS to deliver scalable cloud-based systems and manage robust data...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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Java Developer- Fintech

Company IconQuant Capital
Location IconLondon

Overview In this role you will design, build and deploy cloud-based microservices to support a greenfield fintech product. You will collaborate with cross-functional teams and contribute to automated testing and continuous improvement. The...Read More>>.

Posted: September 14th, 2026
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Lead Java Developer

Company IconCitigroup
Location IconLondon

Overview In this role you guide the architecture, design and delivery of real-time and on-demand risk applications for the Credit business. You will align cross‑functional teams across London, NAM, and APAC to implement scalable, resilien...Read More>>.

Posted: September 14th, 2026
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Contract Java Developer

Company IconQuant Capital
Location IconLondon

Overview In this Technical Consultant role, you will drive integration of a cloud-based, microservices wealth-management platform for financial clients. You’ll work within a 20-person technical consulting team to translate client needs in...Read More>>.

Posted: September 14th, 2026
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Junior Java Developer

Company IconVersion 1
Location IconBirmingham

Overview As a Java Developer at Version 1, you will deliver Java-based solutions across enterprise projects, leveraging Azure Cloud and Apigee for API-driven integrations. You’ll join a driven, agile team to build distributed systems and...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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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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Java Developer (Blockchain)

Company IconLondon Stock Exchange Group
Location IconLondon

Overview In this role you will join a new venture building a cloud-based, scalable market infrastructure service. You will work with the Director Technical Delivery Solution and Delivery to deliver robust engineering solutions and drive exc...Read More>>.

Posted: September 14th, 2026
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Senior Java Developer

Company IconLinuxRecruit
Location IconLondon

Overview In this senior backend role, you will own Java-driven backend work within a close-knit agile team, shaping internal systems with the Spring framework. You’ll mentor juniors and pair-program to raise the team's capability while co...Read More>>.

Posted: September 14th, 2026
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Application Developer

Company IconEast West Railway Company
Location IconMilton Keynes

Overview In this role you will design, develop and support Microsoft‑based applications that empower colleagues across East West Rail to work smarter and faster. You’ll join the Data Centre of Excellence to deliver practical digital sol...Read More>>.

Posted: September 14th, 2026
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Full Stack Java Developer

Company IconVersion 1
Location IconBelfast

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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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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Experienced Java Developers

Company IconCitigroup
Location IconBelfast

Overview In this role you will contribute to and potentially lead the development of robust Java backends at Citi Belfast. You join a tech-focused team that supports global finance at scale and offers mentorship and flexible hybrid work. Yo...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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Senior Java Developer

Company IconBright Purple
Location Icon

Overview Senior Java Developer to strengthen the engineering function of a financial services client. You will reshape the post-trade platform, APIs, client portal, and reporting while integrating existing and third-party trading components...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 quantitative trading firm to design and build low-latency Java-based trading solutions. You collaborate with the Head of Trading and Quant team to develop new algorithms and maintain existi...Read More>>.

Posted: September 14th, 2026
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SC Cleared Java Developer

Company Iconfortice
Location IconBristol

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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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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Elite 3E Senior Applications Developer

Company IconSystemsAccountants
Location IconLondon

Overview In this role you will own the development and support of Elite 3E-based solutions within a complex legal environment, partnering with finance and business stakeholders to improve efficiency and data quality. You will lead scalable...Read More>>.

Posted: September 17th, 2026
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Senior Java Developer

Company IconJAM Recruitment Ltd
Location Icon

Based in Birmingham, this Senior Java Developer contract role pays £700-£750 per day inside IR35. The 12-month assignment offers hybrid working across multiple UK office locations. You will design, build, and support software products underpi...Read More>>.

Posted: September 12th, 2026
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Java developer - Contract

Company IconNigel Wright Group
Location IconNorth East

The Role One of my clients is requiring a couple of Java Developers to help them across a suite of projects. It will suit a developer who is used to being involved in every stage of the development cycle from development, testin...Read More>>.

Posted: September 12th, 2026
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Senior Java Developer

Company IconWelocity
Location IconLondon

Overview The Senior Java Engineer at NCG will play a pivotal role in designing and implementing high-quality software solutions within the ITES sector. This role is crucial in driving technical innovation and ensuring the robustness, performanc...Read More>>.

Posted: September 13th, 2026
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Java Developer Contract

Company IconExplore Group
Location IconLondon

Senior Java Engineer (Contract) – Greenfield Fintech Platform Location: London / Hybrid (1 day/week in office) About the Role We are seeking an exceptionally skilled Senior Java Contractor to join...Read More>>.

Posted: September 14th, 2026
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Lead Java Developer

Company IconBounteous
Location IconGlasgow

You will be working within a global Agile squad responsible for developing Transaction Reporting systems with robust controls to ensure timeliness and accuracy of reported data to enable client to manage its risk.The role will expose the...Read More>>.

Posted: September 14th, 2026
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Low Latency Java Developer

Company IconHarrington Starr
Location IconLondon

London | Electronic Trading | Java | Low LatencyWe're working with a technology-driven trading business looking for a hands-on Java Developer to build and enhance high-performance electronic trading systems.You’ll...Read More>>.

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

Company IconNPAworldwide
Location Icon

Are you an experienced Senior Software Engineer or Technical Lead who enjoys remaining hands-on while guiding teams and shaping technical solutions? A leading specialist technical consultancy is looking for a Software Technical Lead to j...Read More>>.

Posted: September 14th, 2026
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Java Developer with SQL - Central London

Company IconJas Gujral
Location IconLondon

Java Developer with SQL Server – Central London Our Client is looking to recruit a seasoned professional with 5 plus years experience in developing with Java as a backend Developer with SQL Server. You will have a good understan...Read More>>.

Posted: September 15th, 2026
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Application Developer

Company IconEast West Rail Company
Location IconMilton Keynes

Application Developer Application Deadline: 25 September 2026 Department: Digital Employment Type: Permanent Location: Milton Keynes Reporting To: GIS Programme Lead...Read More>>.

Posted: September 15th, 2026
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Application Developer

Company IconVallum Associates
Location IconSheffield

We are looking for a highly skilled Application Developer with strong expertise in identity API development, data ingestion and transformation, and event-driven (Pub/Sub) architectures. This role focuses on building secure, scalab...Read More>>.

Posted: September 15th, 2026
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Java Developer (Market Data)

Company IconMorson Edge (Financial Services)
Location IconLondon

Java Developer (Market Data) – Java, SpringBoot, Pricing, Risk Systems, Market Data, Trading, Clearing, Post-Trade, Financial Services - London - Up to £850p.d Inside IR35 Via Umbrella My Client, a global Financial Services org...Read More>>.

Posted: September 15th, 2026
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Java Developer - Fullstack, active UKIC

Company IconBangura Solutions Limited
Location Icon

Long-term Java Developer role available for a UKIC DV Cleared individual.Working on a secure programme, this will be a broad development role that will give you an opportunity to develop cutting edge Software Development web applications...Read More>>.

Posted: September 15th, 2026
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CMDB Application Developer (DRWN)

Company IconDarwin Recruitment
Location IconStevenage

Job title – CMDB Applications Developer & Reporting SpecialistClient Location – Stevenage, UKRemote work offering – HybridClient Industry – Aerospace & DefenceContract Length – 6 monthsCon...Read More>>.

Posted: September 16th, 2026
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