76 to 100 of 136 Java Jobs in the City of London

Skills and Experience You possess strong development experience in Java and Kotlin. You have familiarity with Agile processes and Test-Driven Development (TDD). Technical Expertise You understand Computer Science, Object-oriented Programming (OOP), Design Patterns, Data Structures, and Algorithms. Knowledge of additional technologies such as Scala, React, Spring, Oracle ...

will work on digital solutions that meet GDS standards and be involved in Agile product development. The ideal candidate has extensive knowledge in Java, Docker, and Kubernetes, with experience in leading teams. The position offers various benefits, including flexible working, paid holidays, and health insurance. #J-18808-Ljbffr ...

Contract Role - VP Full Stack Engineer - Solidity (smart contracts on Ethereum/blockchain) & Angular/Java - London/Onsite - 12 months initial - Inside IR35 We are looking for 3 experienced VP-level Software Engineers to join the team as contractors on an immediate basis. The team is looking for well … rounded engineers with experience across multiple technology areas, including Angular front-end development, Java server-side development and Solidity smart contract development. Engineers should ideally be able to contribute across at least 2 of these 3 skill sets, with front-end development being the highest priority. The ideal profile will ...

hardening across UNIX/Linux environments with a focus on enterprise standards. You will handle OS and middleware patching, Oracle WebLogic, JBoss EAP, and Java platforms, ensuring reliability through DR validation and controlled rolling upgrades. Hybrid work with 2 days in London per week. #J-18808-Ljbffr ...

Design and Engineering teams to deliver high-quality solutions that improve client experience across multiple channels and integrated platforms. The technology environment includes: Angular Java Spring Boot Node.js AWS (Aurora PostgreSQL, EC2, S3) CI/CD and automated testing frameworks AI-assisted development tools including GitHub Copilot and Claude … Responsibilities Design, develop and enhance Angular-based customer-facing applications Build and maintain cloud-native services within AWS environments Develop backend services using Java Spring Boot and Node.js Integrate third-party APIs and internal platforms to create seamless digital experiences Deliver well-tested, maintainable and scalable code Participate in architecture ...

Lead Java Engineer – Low Latency, High Throughput, Front Office, LMAX Disruptor, Aeron, Real-time Streaming, SQL, Fixed Income A Lead Java Engineer with expertise in low latency, high throughput Front Office trading systems is sought after by a global Investment Bank to join their Fixed Income Technology Platform team. … development approach and acting as a liaison between the engineering team and the business. To be successful, you will demonstrate: Strong hands-on Core Java skills with deep knowledge of multithreading, concurrency, garbage collection, caching etc. Experience with any of LMAX Disruptor, Aeron, Solace or Kafka to achieve low latency ...

will bridge the gap between traditional telecommunication protocols and modern cloud-based AI. Your core focus will be developing stable SIP services using Java, managing open-source media engines, and integrating advanced Speech AI technologies across multi-cloud environments. Key Responsibilities SIP Development: Develop, test, and maintain mid-to-high … Team Collaboration: Work alongside senior architects and DevOps teams to roll out scalable conversational AI bots. Required Skills & Qualifications Core Language: Professional experience with Java, including multi-threading and network programming. In depth knowledge of Java Good knowledge of java applications using JAIN SLEE framework, SIP Servlet Frameworks Telephony Engines ...

Sanderson is looking for a Senior Java Architect - Payments in London (Hybrid) to lead backend architecture for a global payments transformation project, building cloud-native platforms that support cross-border payments, settlement, reconciliation, and banking operations. You will partner with Lead Architect, guide offshore teams, and design microservices, event-driven ...

Overview Vacancy for Lead Developer Java/Scala at The National Archives (UK) 23 January 2023 London Full-Time Person specification About you You are an enthusiastic and organised individual who is keen to join a growing team and make a positive contribution. You have the confidence to advise … 11th to the early 21st century are all to be preserved in the system. We currently operate a series of workflows constructed predominantly in Java, Scala, XSLT and XML Schema running in a Linux environment and we expect Cloud services to play a large role in our future architecture. ...

leading digital archiving organization in London seeks a Lead Developer proficient in Java and Scala to oversee software development in their Digital Preservation team. You will manage systems critical to preserving national digital records and lead innovation within the department. The ideal candidate has experience in Linux and AWS, mentoring ...

Ascendion is looking for Senior Java Consultant in London, UK ! Location: Bromley, UK Working Model: Hybrid Full-Time role with Ascendion We are looking for a strong Java Consultant with excellent technical capabilities to join a banking technology team working on high-performance applications. Key requirements: Strong Core Java development ...

Java Developer/Backend Software Engineer (Kafka API) London/WFH to £90k Are you a Java technologist seeking a role where you can work on ground breaking technology, continually learning and progressing your career? You could be joining a global technology consultancy. What's in it for you: Salary ...

inviting applications for this role. Applicants must have the right to work in the UK and the ability to pass BPSS vetting. Software Developer (Java) Mercator Digital is looking for a Software Developer (Java) to be part of our growing consultancy. We’re on a mission to transform digital services … order to design, build, test, maintain and support the new digital services. As a Developer you will have: Excellent development skills, for example in Java, and a strong track record of designing, developing, delivering, testing and optimising applications for public use #J-18808-Ljbffr ...

This is a full stack role with a leaning towards frontend. Our frontend stack includes VueJS, TypeScript, and OpenAPI; our backend stack is primarily Java (Spring Boot) and Python, with some legacy Go. We're constantly evolving how we build and deliver software, and we're increasingly looking for engineers … that solve real user problems. Extend the Measure experience end-to-end: Create robust, scalable systems using VueJS and TypeScript on the frontend, and Java (Spring Boot) or Python services on the backend, that handle streaming responses, dynamic visualisations, and complex state management. Integrate seamlessly: Use OpenAPI contracts to build ...

technology consulting company is seeking a Backend Java Developer to build core backend services in a hybrid role based in Birmingham. You will implement policy engines for data governance and work with distributed data platforms. The ideal candidate has strong Java and Spring experience, expertise in SQL parsing, and familiarity ...

intersection of quantitative research and production engineering. You’ll help design and implement sophisticated pricing, hedging and optimisation models within high-performance, distributed Java systems. What you’ll be doing Building production-grade pricing, hedging and optimisation models in Java Developing client pricing, spread optimisation and liquidity models Designing automated … logic across resilient, multi-region trading systems Working closely with quantitative researchers, traders and engineers What we’re looking for 5+ years of advanced Java development experience Strong commercial experience with Java 17 or later , ideally Java 21 Excellent knowledge of concurrency, object-oriented design and performance engineering Experience building ...

Parser Limited in London is seeking a Senior Backend Engineer (Java) to lead the design, development, and support of mission-critical banking services in a multi-cloud environment. You will own distributed systems and microservices, build RESTful APIs, and ensure robust testing, CI/CD, and production support while collaborating ...

Solution Architect/Senior Solution Architect/Technical Solution Architect - Java/Kafka - Hands on £600 Pay - Outside IR35 - 4 Days per week on site in London Bridge 6 month initial contract We've partnered with a genuinely exciting organisation who are building a greenfield Bank, as part of this … implementing a whole host of new platforms and technologies. For this role, we're looking for a hands on/technical Solution Architect with Java and Kafka to drive forward the end-to-end architecture for s RTL & Payments Transformation, ensuring cohesive design across Payments, Reconciliation, KYC, Cash Management, Monitoring ...

exceptional low-latency engineer to join its specialist electronic trading technology team. This is a highly hands-on position-around 90% coding-building Java and Rust event-sourcing frameworks that support algorithmic trading platforms across the bank. The technology operates at serious scale, with response times … microsecond range. We're looking for experience in: Modern Java and JVM performance optimisation Low-latency algorithmic trading systems Market data and back-testing/simulation tools Linux internals, system calls and kernel tuning TCP/IP and kernel-bypass technologies Event-driven or event-sourcing microservices Performance analysis ...

Senior Java Engineer £55,000-75,000 GBP Pension, Benefits Hybrid WORKING Location: Central London, Greater London - United Kingdom Type: Permanent Senior Java Engineer Payments Technology Location: London/Hybrid Working Salary: £55,000 - £75,000 + Benefits Package About the Role We're working with a leading global consultancy … seeking an experienced Senior Java Engineer to join a growing payments technolo click apply for full job details ...

Senior Java Engineer - Payments £60,000 TO 80,000 GBP Onsite WORKING Location: Central London, Greater London - United Kingdom Type: Permanent Senior Java Engineer - Payments UK Wide or Dublin Remote First Permanent We are currently recruiting for an experienced Senior Java Engineer to join a leading technology consultancy delivering large ...

Java Developer - AWS Cloud Migration London (Hybrid - 3 days in office) Contract - 12 months Up to £700/day (Inside IR35) A well- established investment bank in the City is looking for a Java Developer to join its Back Office Change function, working on an AWS Cloud migration. You will ...

office systems. As the RMS platform continues to expand its coverage of supported commodity products and trading flows, we are looking for a Lead Java Engineer to strengthen our experienced and dynamic team. Our technology stack includes Java, Spring, Kafka, Oracle Database, and React, offering opportunities to work across both ...

Senior Backend Engineer (Java) Who is Parser? Technology alone does not create impact-the right teams do. Founded in 2018, Parser is a boutique technology services and consulting firm helping global organisations solve complex business challenges through digital transformation, product development and Al enablement. We are a fast-growing team … functional teams across multiple locations What you'll bring to the role: Essential Requirements: Extensive hands-on backend engineering experience with expert proficiency in Java development and JVM technologies Deep understanding of distributed systems architecture, microservices, and relational database data architecture patterns Proven experience building and supporting cloud-native applications ...

transform and scale this practice. This is a role split evenly between technical leadership and people leadership. You'll need real depth in Java, React and Spring Boot — confident enough to design a solution and defend it credibly to a sharp, technical client stakeholder — alongside strong team management experience … process pragmatically, without losing delivery momentum Acting as the "go-to" person for your key stakeholders What we're looking for: -Deep, hands-on Java, React and Spring Boot expertise (non-negotiable) -Broader technical range across the wider stack, cloud (GCP/Azure/AWS) and microservices -Proven engineering leadership ...