1 to 25 of 62 Permanent Java Developer Jobs in London

Java Developer/Engineer DV Clearance ( Defence, MOD) London Up to £100,000 + Training + Progression + Company Benefits Are you a Java Developer/Engineer with developed vetting looking to join on of the worlds most renowned multinational technology businesses where you will be … in control of how quickly you progress with access to constant personal and professional development opportunities? On offer is the exciting opportunity for a Java Developer/Engineer who currently has developed vetting to join one of the world's most well known multi national technology business who … role within this global tech giant as well as a vital role within the UK and Global Defence industry. In this role, the successful Java Developer/Engineer will be responsible for agile software development, daily stand-ups, sprint planning as well as contributing to the overall continuous More ❯

Low latency Java Developer - Algo Trading Up to £160,000 p/a Leading London-based trading firm has an outstanding opportunity for a Java Developer to join their low latency trading team. Our client quant prop trading house with performance figures of 22%. They … are currently looking to expand their high and intraday trading presence across FX, equities and commodities. The Java Developer will: Work closely with the Head of Trading and the Quant Team and assist in design and development of new trading algorithms, mainly in Java Help engineer a … are made efficiently; changes are implemented quickly. It’s a friendly, open place where people are motivated because they enjoy what they’re doing. Java Developers MUST have: Computer Science or Machine learning BSc or Masters or PhD from a top 40 University Globally Some commercial Java Development More ❯

Java Developer - Core Java, SQL, JSON, XML Oliver Bernard have exclusively partnered with a Global Travel company on a sustained period of growth and are looking to add a number of Java Developers to their growing engineering team. You'll be joining a team of highly … experienced engineers working on maintaining and developing a platform used by millions of customers, whilst following modern software development best practices. Java Developer - Core Java, SQL, JSON, XML Key skills and experience: 2+ year of commercial experience Strong knowledge and understanding of Java programming SQL JSON … London Salary between £40k-£70k depending on skills and experience To be considered, you must be UK based as sadly sponsorship isn't available Java Developer - Core Java, SQL, JSON, XML More ❯

Senior Java Developer/Backend Software Engineer London onsite to £160k Are you a Java technologist with strong knowledge of software engineering best practices and backend development experience looking for an opportunity to progress your career in a senior, hands-on role with complex and challenging work … You could be joining a scaling Cyber Security technology company that has just received £100 million investment. As a Senior Java Developer you'll join a small, Agile team using core Java within a TDD environment deploying to AWS. You'll design and develop new features and … in London five days a week with a wide range of facilities and an array of perks. About you: You have strong backend core Java development skills You have a strong knowledge of software engineering best practices and have experience with TDD You have a good knowledge of SQL More ❯

Junior Java Developer - Finance Are you a 2024/2025 graduate in Comp Sci or a Java Developer with one year of experience, looking for a new opportunity in Finance? I am working with a next-generation Capital Markets business based in Central London, who are … looking for a Junior or +1 year of experience Java Developer to join them. As a Junior Java Developer, you will have commercial or industrial experience in working with Core Java, and an interest in Capital markets, Trading, Forex etc; and relish working in a … small business with approximately 20. Requirements: 1st or 2:1 from OxBridge or Top Russell group University experience working with Java ( projects or commercial/industrial experience) Knowledge in Finance, Front Office Connectivity/Low Latency Java Knowledge in Garbage collection/Memory More ❯

Java Developer - FX/E-Trading - Core Java, Microservices, AWS A scaling FX/E-Trading client of OB's are looking for a highly skilled engineer to join their growing engineering team, having recently securing a recent round of funding. This is a great opportunity for … a Mid-Level Developer to work on high-availability, scalable applications. Entering their scale-up phase, my client are looking to grow their engineering team to 20 this year, and are looking for candidates to hit the ground running. The ideal candidate will have experience working with Core Java, ideally in the E-Trading/FX space. Java Developer - FX/E-Trading - Core Java, Microservices, AWS Ket skills and experience: 3+ years of commercial experience Core Java Springboot Microservices AWS Kafka Low-latency/e-trading experience This role is a hybrid role More ❯

Senior Java Developer £80,000-£90,000 Central London – Hybrid Working I’m currently working for a global FinTech business who are looking for a Senior Java Developer with experience in Salesforce to join their growing team in London on a hybrid basis while paying up … they are now looking to add to their Development team with many of these exciting projects already underway. They are looking for a Senior Developer who has good experience working with Salesforce – which many of their platforms use on the backend – while also being an expert Java Developer … require office working of twice a week. Technical Requirements Minimum of 5 years software development experience. Have worked in a FinTech environment previously. Expert Java Developer and working with REST APIs. Salesforce experience – admin/configuration/security/process automation. Apex, JavaScript, SOQL, Testing. Bonus Skills: AWS More ❯

Are you an experienced Java Developer looking for a new challenge and to work for an AI startup with an important mission? 🚀 Senior Java Developer – Revolutionising Data Security 🚀 Location : Hybrid working 1-3 days a week in central London (King’s Cross) Salary … privacy and security, amidst the GenAI boom. This is an incredibly exciting time to join the team as they are growing with multiple Senior Java Developers as well as DevOps Engineers. As a Senior Java Developer, you will: Have 5+ years experience as a Software Engineer Experience … developing with: Java, Spring Boot, Microservices, Kafka (or other messaging queues e.g. RabbitMQ), AWS, Docker, Kubernetes A desire to be part of an important mission Be adaptable to working in the buzzing, dynamic fast-paced environment of an early-stage scale-up They are avid promoters of a modern More ❯

Lead Java Developer London, Hybrid A modern fintech company is seeking an exceptional Lead Java Developer to join their innovative and high-performing team. This permanent position offers a competitive salary of up to £130,000, along with hybrid working arrangements, providing flexibility and a positive … much more Role Overview: We are seeking a forward-thinking, hands-on leader to drive innovation and excellence in software development. As a Lead Java Developer, you will be responsible for the design, development, optimization, and maintenance of high-performance, cutting-edge software solutions. Your role will involve … problem-solving and an in-depth interest in fintech are key to thriving in this role. What Were Looking For: Extensive experience in Core Java development, with a solid understanding of data structures and algorithms Proven leadership skills with the ability to inspire and manage a development team Proficiency More ❯

Do you have 3-5 years experience and are looking for your next challenge? Have you been developing with Core Java without the use of frameworks? Mid Java Developer – Leading FinTech Location – hybrid in London 3 days a week Salary – up to £75k + 25-50% bonus … We are working with our long-term partners on the hunt for numerous Mid-level Java Developers as they continue to expand various teams. They began their journey as a market-leading FinTech disruptor and after many years at the forefront of their field, have recently been acquired by … someone with 3-5 years prior experience, with the potential to rapidly progress into a senior position. Experience they are looking for in Mid Java Developers: Core Java Developing software from scratch WITHOUT the use of frameworks e.g. Spring Multithreading TDD, CI/CD, Paired-programming environment Data More ❯

Have you got experience leading a team while remaining hands-on and technically involved? Lead Java Developer – FX Trading Salary : up to £130k + bonus (25-50%) Location : London office 3 days a week We are delighted to be continuing our longstanding partnership with an FX Market Disruptor … FinTech that has been acquired by a leading capital market. They are looking for an experienced Java Developer who will fulfil a hands-on Lead role leading the next generation of Java Developers. They are looking for the following experience in Lead Java Developers: Core Java … looking for a step up in your career to take on additional responsibilities while remaining technically hands-on? Apply now for this excellent Lead Java Developer opportunity! Please note : Due to compliancy reasons, we will only be able to consider applications based in and eligible to work in More ❯

Job Title: Java Developer - Multi-Threaded Experience Location: London/Birmingham/Sheffield/Edinburgh Salary/Rate: Up to £525 per day INSIDE IR35 Start Date: 06/05/2025 Job Type: Contract Company Introduction We have an exciting opportunity now available with one of our … sector-leading financial services clients! They are currently looking for a skilled Java Developer with multi-threaded development experience to join their team for a six-month contract. Job Responsibilities/Objectives Within FX eRisk IT, there are a number of applications which are responsible for managing liquidity … distribution/pricing and algorithmic trading components is essential as is a proven track record of agile delivery of Business requirements. As a senior Java developer, the successful candidate will be expected to perform the following duties with a high level of competence: Liaise with nominated business stakeholders More ❯

Java Developer My Central Government client is looking to recruit an experienced Java Developer working in an Agile environment to work on a data ingestion/management project. This will involve writing code to transform and manipulate data across formats, into storage with potential impact on … the HBase big data platform, providing data to consumers via micro-services. You will need to be a subject matter expert in Java 8, Spring/Spring Boot, REST, TDD, BDD (specifically Cucumber), Apache Camel, Microservices architecture, GutHub/Gitlab and Clean code. This is a long term contract … will need to be SC cleared or at least be eligible to go through Security Clearance up to SC level. Essential Skills and Experience: Java 8 Spring/Spring Boot and spring data rest TDD BDD Apache Camel Microservices architecture If you would like further information about this role More ❯

Java Developer - London, Hybrid A modern fintech company is seeking a talented individual to join their dynamic team. This permanent role offers hybrid working arrangements and a competitive salary of up to £75,000. What is in it for you: Hybrid working Pension Private healthcare and dental cover … for your onward career development ....and much more The Role: The role is designed for those who thrive on innovation and excellence. As a Java Developer, you will be instrumental in designing, developing, improving, optimising, and maintaining cutting-edge software solutions. Your expertise will also be crucial in … a keen interest in the fintech sector are imperative for success in this role. To be considered: Candidates must possess substantial experience in Core Java development. Be proficient in working with Linux , Docker, and Kubernetes. A solid understanding of data structures and algorithms is essential. Additionally, familiarity with secondary More ❯

Java Developer - London, Hybrid A modern fintech company is seeking a talented individual to join their dynamic team. This permanent role offers hybrid working arrangements and a competitive salary of up to £75,000. What is in it for you: Hybrid working Pension Private healthcare and dental cover … for your onward career development ....and much more The Role: The role is designed for those who thrive on innovation and excellence. As a Java Developer, you will be instrumental in designing, developing, improving, optimising, and maintaining cutting-edge software solutions. Your expertise will also be crucial in More ❯

Lead Java Developer – Gaming | Hybrid (London – 3 days on-site) | Up to £90,000 - £100,000 per annum basic salary + Bonus & Benefits James Adams Recruitment has partnered with a fast-growing company at the forefront of the online gaming industry. Our client is an innovator in the … iGaming space, delivering cutting-edge online gaming to a global audience. They are looking for a Lead Java Developer t o play a pivotal role in shaping the architecture and development of their real-time gaming platform. The Role This is a hands-on leadership role (90% coding … designers, engineers, and product teams to deliver world-class gaming solutions. Key Responsibilities ✔ Develop & Lead – Drive the development of scalable, interactive gaming products using Java (11+), Scala & Spring Boot . ✔ Microservices & API Design – Design and implement modular microservices architecture with 3-tier API design . ✔ Cloud & DevOps – Work within More ❯

Senior Java Developer - Gaming Industry - Hybrid Working - London - Up to £100,000 p/a Christopher Ali are recruiting on behalf of a well backed games provider targeting the Asian gambling market. They develop their own games and provide a white label platform which also aggregates a number … of 3rd party games suppliers together, supplying games and bespoke solutions to a numerous large operators in the market. As a Senior Java Developer, you will work at all stages of the product lifecycle from requirements capture, through design and implementation, to system testing and integration. You will … remote work based out of the London office. Mandatory skills and experience: Excellent problem solving and communication skills. At least three years of commercial Java development experience, with some experience in real money and/or social gaming industries. Significant technical contribution to complex software products. A degree in More ❯

Low Latency, FX, Banking Location: London (On-site, 5 days a week) Full-time, permanent We are seeking a Senior Java Developer with expertise in Core Java, low-latency systems, and FX trading to join our team. This role is based on-site in the UK, requiring … practices in multithreading, memory management, and garbage collection tuning. • Collaborate with global teams to integrate systems and improve existing architectures. • Maintain and improve existing Java applications while ensuring code quality and security compliance. • Troubleshoot complex performance bottlenecks and implement optimizations Required Skills & Experience • Strong expertise in Core Java (Java 8+), including concurrency, collections, and JVM performance tuning. • Proven experience in low-latency, high-frequency trading systems. • FX trading domain knowledge with experience in pricing, risk, and execution systems. • Experience with multithreading, garbage collection tuning, and optimizing memory management. • Strong understanding of networking, TCP/IP, messaging More ❯

Join us as a Senior Trading Java Developer at Barclays, where you'll spearhead the evolution of our digital landscape, driving innovation and excellence. In this role, you will be performing activities related to the design, development, unit testing, deployment, support, and maintenance of an exciting transformational enterprise … This ambitious initiative leverages a modern tech stack, offering a unique opportunity to make a significant impact. To be successful as a Senior Trading Java Developer , you should have: Strong experience in Java low latency programming. Experience building enterprise scale desktop and/or web applications within More ❯

Java has grown to be the most prevalent and widely used programming language for years, and we are working on an opportunity for a senior Java developer to continue the great work Java does. You'll, as the senior, be working alongside another senior and the … management as well as managing the expectations of technical and non-technical stakeholders. In terms of the technical side, you'll get to use Java 12 in a Spring Boot format. You'll work within a GCP environment with the platform stack using Kubernetes on GCP, defined by Terraform More ❯

Senior Java Developer - FX Options Technology - VP - London 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 … demonstrated passion for delivering FX technology in support of our FX business. Role Overview/What will you do: We are looking for a Java developer and technologist to take a hands-on role, contribute to the design and delivery of feature enhancements for our business, and be More ❯

Java Developer – London | Permanent | 4-day Flex Working Defence, Cyber & Intelligence Programmes | Competitive Benefits About the Opportunity A leading defence and cybersecurity organisation is seeking Java Developers at all levels to join their growing team, working across a range of cutting-edge projects in the national security … Work within Agile Scrum teams and contribute to continuous improvement initiatives Mentor and support junior engineers where appropriate Essential Skills and Experience Proficient in Java (latest versions) and Python Strong development experience on Linux platforms Knowledge of unit testing and mocking frameworks, particularly JUnit 5.x (Jupiter) Familiar with Git More ❯

Job Title: SC Cleared Java Developer – Strong Software Engineer Location: Manchester or Croydon Job Type: Full-time Contract Salary: £500-560 Inside IR35 Clearance Required: SC (Security Check) Job Description: Our Governement client is looking for strong Software Engineers with extensive experience working with Java (Spring Boot … your skills in a challenging environment, where your expertise will directly contribute to the development and improvement of government systems. As an SC Cleared Java Developer, you should be confident with test-driven development (TDD) , containerisation using Docker , and working with relational databases like Postgres (ideally with migration … of modern DevOps practices. Knowledge of Kafka is advantageous, and experience with React/TypeScript is also desirable. Key Responsibilities: Develop high-quality, scalable Java applications using Spring Boot in large microservice architectures . Collaborate closely with cross-functional agile teams to design and implement solutions. Write clean, maintainable More ❯

Senior Java Analyst Developer/Technical Consultant £130,000 Plus Bens Quant Capital is urgently looking for a Java Analyst Developer/Technical Consultant to join our high profile client. Our client is a global trading platform software business. Its products are used globally by most … functionality, and undertaking development to deliver functionalities (when required). Technical Consultants/Analyst Developers must have: 8+ years’ full-stack experience as Senior Developer around digital applications, software engineering, microservices and cloud. This could include Core Java, Spring Boot, Hibernate/JPA and UI using React, Ember More ❯

Job Title: Java Developer (Front Office/OTC) Job Type: Permanent Location: London/Hybrid Salary: £150,000-£200,000 (DOE) - Upto £300,000 Total comp Skills: Java, C++, Python, Low Latency, Microservices, API's, Functional programming, OTC, Crypto Assets Roc Search have partnered with a well … expertise and technology to expand into three non-traditional strategies: real estate, venture capital and crypto assets. They're are looking for an OTC Developer with strong Java experience to join their team. This role is responsible for building and supporting a multi-language, functionally diverse technology stack … trading systems, exchange connectivity solutions, monitoring systems, and tools to integrate with their core infrastructure services. The team’s existing systems are written in Java, C++, and Python. Candidates should have a good initiative and have experience independently driving projects to completion. they work from high-level requirements and More ❯