20 of 20 Permanent Java Developer Jobs in London

Java Developer - Remote Working Lynx are currently working with a large IT consultancy to help them source a Java Developer . Our client is large global Consultancy who work with enterprise clients, solving their business and technology problems using cutting edge Solutions. Responsibilities: Engaging … consultancy capacity Advocating for and contributing to best practices in software engineering across teams and projects Key skills and experience: Experience working as a Java Developer Java development experience Experience working within cloud environments If this role sounds of interest, then please apply with your updated CV. ...

Lead Full Stack Java Developer - SC Cleared NEW PERMANENT OPPORTUNITY FOR A LEAD FULL-STACK JAVA DEVELOPER IN LONDON WITH SC CLEARANCE Location: London (Hybrid) Salary: £80,000 - £95,000 per annum Clearance: Active SC Clearance required To apply: email The Company Join a specialist technology … modernise secure systems that underpin national operations - tackling some of the most demanding challenges in government technology. The Role As a Lead Full Stack Java Developer , you will guide a small team of engineers while remaining hands-on in the design and development of high-performance, secure applications. ...

Java Developer Job Type: Permanent Location: Remote (Occasional visits to London) Salary & Benefits Up to £55,000 per annum 5% pension Medical cover Travel expenses covered About the Role Stealth IT are looking for a Java Developer to join their team on a permanent basis. This … work directly with the organisation in a client-facing environment, contributing to the delivery of modern software solutions. Key Responsibilities Develop and maintain Java-based applications Work with Spring Boot to build scalable services Contribute to microservices-based architecture Collaborate with cross-functional teams in a client-facing setting ...

Senior Java Developer Senior Java Developers with a passion for cutting-edge technology and a desire to work on a flagship platform rebuild, look no further for your next role! We have an exceptional opportunity with a leading financial services technology vendor based in the heart … London. As a Senior Java Developer within this team, you will play a crucial role in the next phase of their growth, working on autonomous software at the core of their processes. You will have the opportunity to bring the most cutting-edge technology to their global client ...

Java Developer Crypto Exchange Connectivity (Low Latency) Location: Home Based/1-2 days per month in London Salary: Circa £100,000 £130,000 + bonus + benefits Java Developer required for a small trading technology firm focused on crypto markets, working directly on exchange connectivity … systems, solving real-world problems around exchange behaviour, performance and connectivity, in a collaborative team of experienced engineers Key experience: • Strong development background in Java (or C/C++) • Experience working in low latency or performance-critical systems • Hands-on experience with crypto exchange connectivity (e.g. Binance, OKX, Coinbase ...

Java Developer – Crypto Exchange Connectivity (Low Latency) Location: Home Based/1-2 days per month in London Salary: Circa £100,000 – £130,000 + bonus + benefits Java Developer required for a small trading technology firm focused on crypto markets, working directly on exchange connectivity … systems, solving real-world problems around exchange behaviour, performance and connectivity, in a collaborative team of experienced engineers Key experience: • Strong development background in Java (or C/C++) • Experience working in low latency or performance-critical systems • Hands-on experience with crypto exchange connectivity (e.g. Binance, OKX, Coinbase ...

Java Developer Crypto Exchange Connectivity (Low Latency) Location: Home Based/1-2 days per month in London Salary: Circa £100,000 £150,000 + bonus + benefits Java Developer required for a small trading technology firm focused on crypto markets, working directly on exchange connectivity … systems, solving real-world problems around exchange behaviour, performance and connectivity, in a collaborative team of experienced engineers Key experience: Strong development background in Java (or C/C++) Experience working in low latency or performance-critical systems Hands-on experience with crypto exchange connectivity (e.g. Binance, OKX, Coinbase ...

Java Developer Crypto Exchange Connectivity (Low Latency) Location: Home Based/1-2 days per month in London Salary: Circa £100,000 £150,000 + bonus + benefits Java Developer required for a small trading technology firm focused on crypto markets, working directly on exchange connectivity ...

their goals. The 3 G’s of RE: “Get Shit Done.” “Get Over Shit.” “Give a Shit.” We are seeking an experienced and opinionated Java Developer to join our high-performing engineering team, working on l ow latency , high-throughput systems in the payments processing domain. This hybrid … offers the opportunity to build scalable, real-time services using modern technologies. If you’re passionate about performance, have strong Core Java and SpringBoot expertise, and thrive in a collaborative yet opinionated engineering culture, we want to hear from you. Key Responsibilities : Design, develop, and optimize low-latency, high ...

Role: Backend Developer (Core Java) We are seeking an experienced Backend Developer with strong expertise in Core Java to build scalable, high-performance APIs and work effectively within large, complex codebases. The ideal candidate will have a solid foundation in system architecture and will collaborate closely … continuously improve SDLC processes Support additional ad hoc technical tasks as required Technical Skills: 5+ years of experience in software engineering with strong Core Java expertise At least 2 years of experience working with SQL databases Strong experience in API development and automation Familiarity with cloud platforms such ...

Senior Java Fullstack Developer - VP level - Investment Technology/Finance An industry leading global financial and technology organisation are looking for Senior Java Software Engineers with 7+ years’ experience, who have some experience in React or similar, plus modern JavaScript/TypeScript, who like to innovate … tolerant software systems using API-First principles. Design, develop, and implement secure, scalable, and reliable micro-services to deliver client-facing applications using a Java backend and React frontend. Optimize performance and reliability through continuous testing, debugging, and refinement. Stay abreast of industry trends and emerging technologies to drive ...

your Java and AWS knowledge to build secure, scalable cloud-based services for medical researchers London with hybrid working; to £90k DoE + options and benefits This company is developing an AWS-based platform to securely share medical diagnostics between clinicians and researchers worldwide, and enable online characterisation … This will feed into a better understanding of disease processes and ultimately better treatments for patients. The back end of their technology stack comprises Java-based microservices running on AWS. Data security and integrity is of paramount importance, and the solution needs to be compliant with healthcare industry software ...

Graduate/Junior Developer, Python, Linux, C#, Java - London (Teck stack: Graduate/Junior Developer, Python, Linux, C#, Java, .NET 10.0, C#, J2EE, Agile, TDD, BDD, Graduate/Junior Developer) Since 2006 our client's revolutionary marketing software platform has been helping businesses all over … customers by delivering inbound experiences that are relevant, helpful, and personalized. Having recently launched in the UK, they looking to hire Graduate/Junior Developer (Python, Linux, C#, Java)) to become a part of their ever-growing family. They believe that individual developers are in the best position ...

Software Engineer Our new client are expanding their engineering capability and are looking for talented Software Engineers with a strong focus on Java to join a growing team. If you thrive in modern engineering environments and enjoy building scalable, high-quality services, this role will put your skills … work on meaningful, production-grade systems. What You'll Work On You'll be developing robust, secure, and efficient services using modern Java frameworks and tooling. Expect to contribute to API development, containerised applications, and cross-functional engineering initiatives. Must-Have Skills Strong commercial experience with Java Hands ...

Java Software Engineer with around 3-6 years professional, post-graduate experience sought by one of the original Quantitative Hedge Funds, with a 20+ year track-record. The firm are renowned for a healthy, supportive, and collegiate working environment and culture, with no siloes, boasting an industry-leading staff … Corporate Functions. The team deal directly with business users right across the firm, taking ownership of analysis, design, architecture, and implementation, working primarily with Java, but also with Python, SQL and to a lesser extent, MATLAB. They currently have an opening for a mid-level hire in the team ...

seeking an experienced Backend Developer with strong expertise in Core Java to build scalable, high-performance APIs and work effectively within large, complex codebases. This role plays a critical part in developing and enhancing a microservices-based platform that supports risk management and backend operations for both corporate … continuously improve SDLC processes Support additional ad hoc technical tasks as required Technical Skills: 5+ years of experience in software engineering with strong Core Java expertise At least 2 years of experience working with SQL databases Strong experience in API development and automation Familiarity with cloud platforms such ...

Software Engineer Our new client are expanding their engineering capability and are looking for talented Software Engineers with a strong focus on Java to join a growing team. If you thrive in modern engineering environments and enjoy building scalable, high-quality services, this role will put your skills ...

Hybrid - 3 days onsite) Contract: Initial 12-month contract Rate: Up to £800/day (Inside IR35) We are seeking a Senior Quantitative Developer to join a high-performing electronic FX (eFX) technology team within a leading global investment bank. This role focuses on the design, development, and optimisation … production Required Skills & Experience Strong experience in electronic trading systems, ideally within FX Proven track record building low-latency, high-throughput applications Advanced Java development skills, including performance optimisation (low GC, lock-free techniques) Experience with Real Time messaging frameworks/protocols (eg Aeron, Kafka, FIX, ITCH, OUCH) Familiarity ...

Bank (Global Markets) £160k-£100k base + bonus + benefits Build the engine behind a $trillions-per-day market This isn't another backend Java role. This is about sitting on the critical path of FX pricing , where microseconds matter, decisions are real-time, and your code directly impacts … high-calibre engineering team Influence architecture across global FX technology What they're looking for Strong background in low latency/high-performance Java Experience in pricing, market data, or execution systems (FX ideal, not essential) Deep understanding of: GC tuning/low allocation design Multithreading/concurrency Network ...

Bank (Global Markets) £160k-£100k base + bonus + benefits Build the engine behind a $trillions-per-day market This isn't another backend Java role. This is about sitting on the critical path of FX pricing , where microseconds matter, decisions are real-time, and your code directly impacts ...