1 to 25 of 48 Java Developer Jobs in London

Java Developer Contractor £540 - £640 per day (Umbrella) | Inside IR35 London (Hybrid - 3 days per week in the office) 6-Month Contract Active SC Clearance Required Java Developer | Enterprise Applications | Agile Delivery We are currently seeking an experienced Java Developer Contractor to join … throughout the full software development lifecycle, helping to translate business requirements into robust technical solutions that support critical business outcomes. The Role As a Java Developer, you will be responsible for developing and maintaining backend services, APIs, and enterprise applications while contributing to modern software engineering practices, Agile ...

Senior Java Developer My customer is actively hiring a talented & eager Senior Java Developer to join their growing & dynamic team. The successful candidate will be responsible for designing, developing, and maintaining Java-based applications, contributing to the full software development lifecycle from concept to deployment … beyond. This role is ideal for a passionate and seasoned Senior Java Developer looking to further their career in a challenging and rewarding environment. Role Overview You will work on in-house systems, APIs, client reporting and web portal, as well as customising our third-party trading system. ...

Accepting applications until: 28 August 2026Job DescriptionYour Role: Java Developer – Digital Out of HomeAre you a Java Developer looking to be part of a team building cutting-edge, event-driven systems that power millions of digital advertising moments every day As a Java Developer … powers all digital assets across Global's outdoor estate — from large roadside signs to the Transport for London network. You'll work with modern Java microservices (Java 21, Spring Boot) deployed on Kubernetes (EKS on AWS), using CI/CD pipelines (Jenkins, Terraform) and observability tools such ...

Java Developer - Active SC, Java, Oracle WebLogic Up to £425 per day (Inside IR35) Remote 12 months My client is an instantly recognisable Consultancy who are hiring a Java Developer with Active SC Clearance (Security Cleared), Java, Oracle WebLogic and ElasticSearch skills to work … with a high profile end client. Key Requirements: Demonstrable experience as a Java Developer Active SC Clearance is essential; NPPV3 would be advantageous Strong expertise in Java 11+ with experience supporting legacy systems Proven experience with Oracle WebLogic 11gR1 or similar Experience developing and supporting PL/ ...

Experienced Java Developer (Contract) Location - London, UK Work Mode - Hybrid (3 days work from office) Contract duration - 6 months Active SC Clearance required - YES Are you a hands-on Java expert looking for your next exciting contract opportunity? We are seeking an experienced Java Developer … code in a fast-paced environment, we want to hear from you! What You Will Do Develop & Innovate: Design, build, test, and maintain robust Java-based applications, backend services, and RESTful APIs. Collaborate: Work closely with Architects, Business Analysts, Product Owners, QA, and DevOps engineers throughout the software development ...

ROLE TITLE: Java Developer LOCATION: London or Leicester (3 days per week with some week 5 days) CLEARANCE: The ideal candidate will have active SC Clearance or be eligible to undergo SC Clearance. LENGTH: 12 months SALARY: £41,000 to £45,000 per annum We are actively looking … secure a Java Developer to join Experis. Experis Consultancy is a Global entity with a well-established team with over 1000 consultants on assignment across 20 clients globally. Our UK operation is growing and has very aggressive plans for expansion over the coming years. We form part ...

JAVA DEVELOPER – FINTECH STARTUP High-Growth Fintech – Asset Management SoftwareLondon (Hybrid – 2 days in office/week)Quant Capital is urgently looking for a Core Java Developer to join a innovative FinTech business developing next-generation asset management platforms for professional investors. The firm operates … lean, high-performance engineering team focused on solving complex industry problems through clean, scalable code and modern infrastructure.We're looking for a Java Developer who's ready to work across the stack and get deeply involved in architectural design, backend performance, and infrastructure scaling.Role OverviewThis is a hands ...

Core Java Developer – Fintech90,000 Plus 10% to 40%Quant Capital is urgently looking for a Core Java Developer to join a well known trading firm. No experience of finance is needed, finance isn't what this firm does, tech is.Our client is an innovative tech … order of multi millions not 3 guys in a shed.The role:This role and would suit a candidate with 2-10 years of Java Development experience. The successful candidate will be a top tier Java developer (or aspiring, half of the team don't have a comp ...

personally, we ensure a bright future for NTT DATA and for the people who work here.NTT DATA is currently looking for a Senior Java Developer (hybrid: remote + London, Canary Wharf) for our growing team in the UK.Summary:We are seeking an experienced Senior Java Developer … Spring Boot, Microservices architecture, CI/CD pipelines, and DevOps practices to design, develop, and maintain scalable, cloud-native applications.Key Responsibilities:- Develop and maintain Java (Java 8+) applications using Spring Boot.- Design and implement Microservices-based architectures.- Build and expose RESTful APIs.- Implement and manage CI/ ...

Senior Java Developer - Hybrid UK | Permanent A leading financial services firm is seeking a Senior Java Developer to build and enhance critical Back Office and Middle Office platforms covering Settlements, Clearing and Prime Brokerage. Required skills Java 11+, Spring Boot and microservices Multithreading and performance ...

hackajob is partnering directly with AND Digital to hire for this role. Lead Java Developer - 12 Month FTC Who We Are: AND Digital are a tech company focused on accelerating digital delivery and dedicated to closing the digital skills gap. We've been helping organisations build better digital … help us fulfil our mission to close the world's digital skills gap. The Role We are looking for an experienced Lead Java Developer to join our engineering team and play a key role in the design, development and operation of cloud-native services within our clients Accounts ...

Quant Capital is urgently looking for a Core Java Developer to join our high profile client.Our client is a 20 man financial software business who create a niche modeling and behavior monitoring application for financial markets.The Java code is very well written and well factored. Source control … innovative start-up is pioneering a new concept for the financial markets. The most important part of their product will be the enterprise-grade java based technology platform. This is a unique green field development opportunity that will allow you to play a part in shaping the future ...

more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Job Title: Senior Java Developer Location: Bromley & London - Hybrid ( 3 days in office is essential) Contract: 12 months with possible extension for one more year. Rate … with the ongoing support and development of the Futures & Options and Collateral business for Global Markets, we are looking for a highly experienced, strong Java and Developer to join the technology teams in Bromley, London working on a range of applications for Collateral. The successful candidates should have ...

Tech: Core Java, JDBC, Kafka, HDFS, Docker, SQL, MultithreadingChallenge: Greenfield Big Data Analysis Platform Development in FSFirm: Well-known Financial Data fintech50 business, City of London, 10 man flat Dev TeamPay: 85k, Options, training budget, Pension, Life/Health, Some Work from HomeNO FINANCE EXPERIENCE NEEDEDCore Java Developer Big Data FintechQuant Capital is urgently looking for a Java Developer to join our high profile client.Our client is a 20 man start up who have created a market leading machine learning data analysis product in the financial data market. Details of the full ideas ...

Title: Senior Full Stack Developer (Java & Angular) - Subject Matter Expert (SME) Location: London/3 days onsite Employment Type: Permanent About the Role: Are you an experienced developer with a strong backend Java foundation and a flair for modern UI frameworks? Are you ready to step … assume leadership responsibilities, and design enterprise-level solutions? We are seeking a Senior Full Stack Developer to act as a Subject Matter Expert (SME) for our core application capabilities. In this role, you will partner closely with business analysts and stakeholders to translate operational processes and business requirements into ...

DescriptionJava Developer – Sports betting Hedge fund – London*Please note this role cannot sponsor. Please do not apply if you are seeking sponsorship*Job SummaryA couple of Java Developers are required for an exciting and progressive Sports betting Hedge fund Company with office in London and Leeds. You will … candidates will be working closely with the quantitative researchers and alongside other extremely talented and driven engineers to build and support systematic trading models.As Java Developer you will need:1st class or or a 2:1 from Oxbridge Degree in a relevant field such as Computer Science, Engineering ...

London/Hybrid (3 days on-site) Initial 6-Month Contract My client is a leading global financial services organisation seeking an experienced Senior Java Developer to join a large-scale enterprise technology programme. This is a senior technical role focused on leading backend application development initiatives … driving architectural decisions for robust, scalable and high-performance server-side systems. You will provide hands-on leadership in building enterprise-grade Java solutions, guiding development teams and influencing technical strategy and engineering best practices. Key Requirements 7+ years of Java backend development experience. Advanced expertise in Java ...

Contract Senior Java Developer – Data Up to 700 per day Outside IR35 (6 month rolling)In office – City of LondonQuant Capital is hiring for a small, high-performing market maker in London. This is a junior-to-mid role focused primarily on Java development, with a secondary … PostgreSQL. This is a growing team focused on data ingestion and building tooling for the wider firm.What you'll do:Build and enhance Java backend services (APIs, batch jobs, integrations) used across the businessWrite clean, testable code with solid engineering discipline (testing, code review, debugging, production support)Maintain ...

Barcelona, Manila, and Montreal, we have a proven track record of delivering powerful, elegant, and intuitive trading technology solutions.We are now looking for a Java Developer to provide services on an exciting project! The service provision will require: Solid JVM skills with strong design patterns.Ability to solve complex … technical challenges, especially in cloud-based environments and by using event driven architecture patterns.Experience of the Fintech industryYOU HAVE: Experience in Java, Spring, Cucumber, JUnit, GitHub, Fix Protocol Significant professional server-side software development experienceGeneral familiarity with data structures such as sets, hashes, caches etcExperience developing Front Office financial ...

Manila, and Montreal, we have a proven track record of delivering powerful, elegant, and intuitive trading technology solutions. We are now looking for a Java Developer to provide services on an exciting project! The service provision will require: Solid JVM skills with strong design patterns. Ability to solve … complex technical challenges, especially in cloud-based environments and by using event driven architecture patterns. Experience of the Fintech industry YOU HAVE: Experience in Java, Spring, Cucumber, JUnit, GitHub, Fix Protocol Significant professional server-side software development experience General familiarity with data structures such as sets, hashes, caches ...

Description:Job Title: Senior Java Developer, EFX Corporate Title: Up to VPLocation: BromleyCompany Overview:At Bank of America, we are guided by a common purpose to help make financial lives better through the power of every connection. We do this by driving Responsible Growth and delivering … delivery of new strategic EFX pricing and auto-hedging capabilities for FICC E-Trading for 2026.In a typical day you can expect to develop Java code, review code written by your colleagues, attend Agile ceremonies, refine requirements with users (Quantitative Strategies Group and Traders) and liaise with sibling teams ...

driven and skilled individuals to join one of the fastest-growing consultancies globally. Job Description We are seeking an experienced Senior Full Stack Java Developer to join our UK Digital & Cloud Practice. Our Digital Practice is expanding rapidly and there will be an opportunity for you to achieve …/DRY principals Hands-on developing/coding role using the following technologies: Frontend (JavaScript/TypeScript or Angular or React or Node) Backend (Java, SpringBoot, Hibernate, Kotlin) Experience in estimation and sizing Integration experience API Design experience Cloud experience Appetite to work with emerging AI technologies SC Eligible ...

Java Software Engineer 2-Days Onsite in Osterley, West London 6 Month Contract - InsideIR35 Our client is actively seeking 2 Java Software Engineers to join their growing discovery engineering team based in Osterley, West London. Required Skills: Strong experience in Java and Spring, with hands-on expertise ...

Java Ruby Python DeveloperQuant Capital is urgently looking for a Java/Scala/Ruby Developerto join our high profile client.Our client is an established financial data technology start up. They enable rapid trading transactions to be processed and are innovators in algorithm matching, big data and language … take intractable problems the trading industry faces, employing highly-parallel algorithms, natural-language parsing and a diverse, cutting-edge technology Ruby, Scala, Coffeescript and Java stack. The company structure is very flat and everyone writes code.They are funded by several major banks.I am looking for a Developer ...

Java Software Engineer 2-Days Onsite in Osterley, West London 6 Month Contract - InsideIR35 Our client is actively seeking 2 Java Software Engineers to join their growing discovery engineering team based in Osterley, West London. Required Skills: Strong experience in Java and Spring, with hands-on expertise ...