22 of 22 Java Developer Jobs in London

Java Developer - Active SC, NPPV3, Java Up to £425 per day - Inside IR35 Primarily Remote 12 months My client is an instantly recognisable consultancy who require a Java Developer with Active SC and NPPV3 clearance for a client within the public sector. Key Requirements: Proven … commercial experience working as a Java Developer within the Public Sector. Active SC and NPPV3 Clearance. Senior-level expertise in either Java/Spring (Boot, Data JPA, Security) or JavaScript/TypeScript with React; mid-level experience acceptable in the other Proven experience delivering high-quality, cross ...

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/ ...

Senior Java Developer Annual Salary: Competitive with performance-related bonus Location: City of London (Hybrid - 3 days a week onsite) Job Type: Full-Time, Permanent A new exciting opportunity has become available for an experienced Senior Java Developer to join a growing Technology department working specifically … improvement of engineering standards. Collaborate with Client Services and Product Management to understand requirements and propose solutions. Manage and mentor a small team of Java developers, promoting a culture of quality, ownership, and continuous improvement. Required Skills & Qualifications: 7+ years' Java development experience in Financial Services. Strong understanding ...

Contract Algo Trading Java Developer - eTrading, low latency, Java APIs, Multithreading, FIX Our Investment Banking client is looking for an Algo trading Java developer to join the team to work on new initiatives and support for business critical algorithmic trading engines. The team provides innovative … latency trading, which includes FIX connectivity, low latency market connectivity, smart order routing, algorithmic trading and internal crossing. The requirement is for a core Java developer. The team is working on a number of algorithmic engines that support benchmark algos, smart order routing and internal crossing. The main responsibilities ...

Title Java Developer Day Rate £500/day - Inside IR35 Location Remote - Occasional London Duration 6 months (with view to extend) ROLE DESCRIPTION Brio Digital are supporting a consultancy on a major NHS digital programme and are looking for an experienced Senior Java Developer to join … high-performing engineering team. You will take a lead role in the design and delivery of complex, enterprise-scale solutions, bringing strong Java, AWS, and API expertise to a programme that is making a real difference to patient care across the country. KEY RESPONSIBILITIES Lead the design and development ...

Java Backend Developer (Booking & Messaging) Rate: £625/day (Inside IR35) | Duration: 6 Months | Location: London (Hybrid) The Role Join a high-performance eBond Booking and Messaging team managing a complex trading platform. You will build and adapt trading workflows , ensuring seamless connectivity to external exchanges and managing … trade booking systems. The environment features a modern microservices architecture , reactive programming, and a fully automated CI pipeline with weekly releases. Technical Profile Java Expert: Java 8+, Multithreading, and RESTful Webservices. Messaging Pro: Deep knowledge of Pub-Sub and brokers like 60East AMPS , Kafka, or RabbitMQ. Reactive & Agile ...

Java Quantitative Developer London – Hybrid Java, Low Latency, Algo Trading, Pricing, Hedging, FX/Crypto, DeFi, AWS The company This is an unmissable opportunity for an experienced Java Quantitative Developer to join the crypto trading desk of one of the leading institutional digital asset firms … markets. Build pricing logic and hedging frameworks that drive the desk's market making activity. Translate trader and quant ideas into efficient, production-grade Java code. Optimise existing trading systems for speed, reliability and scalability. Integrate new data sources and ensure data integrity for accurate model input. Monitor ...

Java Script Works is seeking a Senior Fullstack Java Developer in London, United Kingdom. The role requires proficiency in modern technologies such as React, Swift, Objective C, and Java for mobile development. Candidates should have 5 to 7 years of experience in native mobile application development ...

Title Java Developer Day Rate 500/day - Inside IR35 Location Remote - Occasional London Duration 6 months (with view to extend) ROLE DESCRIPTION Brio Digital are supporting a consultancy on a major NHS digital programme and are looking for experienced Java Developers to join an established engineering … large-scale NHS environment, working alongside architects, testers, and product teams to deliver quality software at pace. KEY RESPONSIBILITIES Design, develop, and maintain robust Java-based applications across the programme Build and deploy cloud-native solutions using AWS services, following well-architected principles Write clean, well-tested, and maintainable ...

Title Java Developer Day Rate £500/day - Inside IR35 Location Remote - Occasional London Duration 6 months (with view to extend) ROLE DESCRIPTION Brio Digital are supporting a consultancy on a major NHS digital programme and are looking for experienced Java Developers to join an established engineering … large-scale NHS environment, working alongside architects, testers, and product teams to deliver quality software at pace. KEY RESPONSIBILITIES Design, develop, and maintain robust Java-based applications across the programme Build and deploy cloud-native solutions using AWS services, following well-architected principles Write clean, well-tested, and maintainable ...

Senior Fullstack Java Developer (IT) London, United Kingdom Posted 10 months ago This is a job posted by our partner Jooble Tech stack Angular React web Rails C mobile development Android Full-stack Objective-C Web Development Node.js iOS Swift Java Below is a snippet … description. To read the full text, please click on the "Apply Now" link. Suggested Qualifications Highly proficient in React, Swift, or Objective C, Java for mobile development; Rails, Node.js, and Angular for web development. Experience Requirements 5 to 7 years of extensive native mobile app (iOS & Android) development. Compensation ...

currently working with a London-based Financial Services client who are actively seeking a Principal Java Developer with extensive experience in the Risk and Market Data space. What you'll need to succeed : Strong server-side Java Development experience in a lead role working on Risk ...

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 ...

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 ...

Full Stack Developer - Active SC, NPPV3, Java Up to £425 per day - Inside IR35 Remote 12 months My client is an instantly recognisable consultancy who require a Full Stack Developer with Active SC and NPPV3 clearance for a client within the public sector. Key Requirements: Proven commercial … experience working as a Full Stack Developer within the Public Sector. Active SC and NPPV3 Clearance. Senior-level expertise in either Java/Spring (Boot, Data JPA, Security) or JavaScript/TypeScript with React; mid-level experience acceptable in the other Proven experience delivering high-quality, cross-functional ...

more information on how we process your personal data, please refer to HCLTech’ s Candidate Data Privacy Notice. Roles and Responsibilities- Migration‐focused Java + DevOps engineer with strong experience in lift‐and‐shift of existing services , CI/CD automation, and scripting. Must be comfortable working with infrastructure … such as Geneos, Grafana and Prometheus or equivalent, with an appreciation of what good operational visibility looks like for a trading platform. Mandatory Skills Java services understanding (operate & migrate existing apps) DevOps & infra migration (box‐to‐box/lift‐and‐shift) CI/CD & automation: Ansible, Chef, TeamCity Scripting ...

across modern AWS infrastructure, React front ends, and advanced LLM/RAG workflows.What you'll be doing Building and enhancing cloud-native applications using Java and/or Python Developing modern React front-end solutions Designing scalable systems on AWS Delivering AI-powered features using LLMs, semantic search … engineering and product stakeholders on a flagship transformation programme What we're looking for 8+ years' software engineering experience Strong hands-on experience with Java and/or Python Proven expertise with AWS cloud technologies Full stack engineering capability, ideally including React Experience building secure, production-grade distributed systems ...

Independently manage production issues and navigate ambiguous environments. Contribute across the full software delivery lifecycle within smaller team settings. Essential Skills Strong experience with Java and Spring Boot. Proficiency in working with event-driven systems like Kafka. Comfortable with Kubernetes environments. Familiarity with CI/CD pipelines and deployment … dynamic and collaborative environment where engineers are encouraged to contribute across the full software delivery lifecycle. Utilise cutting-edge technologies such as Java, Spring Boot, Kubernetes, CI/CD, Azure, Kafka, AWS, and GCP to deliver impactful solutions. Enjoy a work culture that promotes independence, teamwork, and operational ownership. ...

Role: Java Backend Developer with Data Platform Type: 6 Months Contract Location: London, UK (Fully REMOTE) Working Model: Fully REMOTE Payrate: £450 - £550 per Day on PAYE £530 - £630 per Day on RUPAYE £650 - £750 per Day on Inside IR35 via Umbrella The Role: Join our Data Infrastructure … looking for an execution-focused engineer who can jump into existing codebases, work autonomously, and ship high-quality code reliably. Essential Skills: Strong Java , Python , Go , and GCP experience. Ability to move quickly in ambiguous environments without waiting for direction. Bonus Points: Experience with JVM-based frameworks ( Flink , Beam ...

financial sector. We welcome applications from any industry and should you wish to apply your application will be reviewed for a multitude of Developer positions at varying levels. About FX Tech Citi FX has a physical presence in 83 countries with 1,400 dedicated staff giving us the largest ...

A global financial services company is seeking an experienced professional to implement FX trading systems. This role involves working with trading and quant teams, contributing to system design, and enhancing solution quality. Candidates should have ...

Senior Software Developer (SC Cleared) Rate: 470 a day Inside IR35 Clearance Required: Active SC Clearance Contract Length: 3-month contract (scope for extension) Start Date: Early-to-mid June Location: Primarily remote with occasional onsite attendance (maximum once per month). Onsite locations may vary between Sheffield, Leeds … London. Overview We are seeking a highly experienced Senior Software Developer to support the delivery of complex, high-impact digital services within a secure and fast-paced environment. The successful candidate will join a collaborative engineering team focused on building scalable, resilient backend systems using modern JVM technologies ...