101 to 125 of 136 Java Jobs in the City of London

evolve backend services that support the complete customer order lifecycle, from order creation through to fulfilment and completion. Develop scalable microservices and APIs using Java/Kotlin, enabling reliable and efficient order processing across multiple channels. Contribute to event-driven architectures using Kafka to support high-volume transactional workflows across … complex commerce challenges. Who You Are A strong backend engineer with significant experience designing and operating scalable services in production environments. Knowledge working with Java and/or Kotlin and modern microservice architectures. Passionate about building reusable backend capabilities that enable multiple teams and products. Solid understanding of distributed systems ...

leading consultancy firm is looking for a Backend Java Developer for a hybrid role in London. You will build core backend services for a Data Fabric platform, implementing rule engines and working with SQL parsing and distributed data systems. Ideal candidates should have strong experience in Java (17/ ...

growing technology consultancy in the UK is seeking a Software Developer (Java) to enhance their digital services. This role involves collaboration within agile teams to design, build, and maintain innovative applications. The ideal candidate will have excellent Java skills and a strong commitment to best practices in software development. ...

London is hiring for the Affiliate Partnerships team to build and scale Joybuy's global affiliate platform. You will develop backend services in Java/Spring Boot to support merchants and publishers across the UK and Europe. The role requires a BS in a technical field and 3+ years … Java/Spring Boot experience, strong coding skills, and bilingual English/Chinese communication. This is a hands-on, fast-paced environment with opportunities to influence architectural direction. #J-18808-Ljbffr ...

Morson Edge (Financial Services) is seeking a Lead Java Engineer to drive low-latency, high-throughput Front Office trading systems for a global Investment Bank. The role sits on the Fixed Income Technology Platform as part of a major replatforming and modernisation programme supporting Emerging Markets & Repos. You will shape ...

investment bank to hire a hands-on low-latency engineer for its specialist electronic trading technology team in London. The role focuses on building Java and Rust event-sourcing frameworks that power ultra-fast algorithmic trading platforms at scale. You will contribute across the full stack, optimize JVM and Linux ...

Senior Java Architect - Payments Location: London (Hybrid) Contract: 6 Months Initial Pay Rate: £550-£600 - Outside IR35 About the Role We're supporting a global financial services organisation undergoing a significant banking transformation programme. As part of this journey, they are building next-generation banking capabilities and modernising core platforms ...

Java Technical Lead/Delivery Manager 6 Month Contract London (1 Day Per Week Onsite) Competitive Day Rate We are supporting a major investment banking client on a strategic xVA pricing and regulatory programme, alongside the decommissioning of legacy platforms. As part of this initiative, we are seeking an experienced … Java Technical Lead/Delivery Manager who can combine strong technical leadership with proven delivery management experience. This is a highly visible role, working across a global engineering team and engaging with senior stakeholders to drive the successful delivery of critical front-office and risk technology initiatives. The Opportunity ...

Required Skills Kotlin TLS DNS unit testing AWS MCP AI Java TypeScript CDK AWS CDK Networking CI/CD Job Summary Backend Software Engineer – AWS CDK & Edge Platforms Location: London (Hybrid) Pay Rate: £400/day Inside IR35 Duration: 12 Months The Opportunity Looking to work on high-scale distributed … latency client routing. Collaborating within an established engineering team to maintain operational standards. What We Are Looking For Solid software engineering background with Java, Kotlin, or TypeScript. Practical experience deploying and managing workloads on AWS using AWS CDK. Baseline knowledge of web networking (HTTP, TLS, DNS, load balancing). Familiarity ...

leading PB business delivering FX products to clients. We are innovative and dynamic company at the forefront of technology, we develop our products with Java, Kotlin, C++, JavaScript and Oracle database following Agile methodology and leveraging cutting-edge technologies such as MongoDB, ClickHouse, Kafka, Redis, Ignite, gRPC, Spark, Tableau. … opportunity to support a wide ranging CSR programme + 2 days’ volunteering leave per year Your key responsibilities Design and develop new functionality using Java and Kotlin Working with the business on quant, functional non-functional requirements, coordinating BAs working, planning and estimating delivery timelines Being ready to learn ...

teams, architects and tech specialists to build software that makes a real difference for customers and colleagues Get stuck into coding with languages like Java, Python, TypeScript, Kotlin, Swift, Rust and Golang Learn how modern engineering works in practice, from cloud development and automation to continuous testing Help improve … technical expertise Requirements An understanding of modern engineering practices such as cloud development, automation and continuous testing. A strong foundation in coding languages like Java, Python, TypeScript, Kotlin, Swift, Rust and Golang would be advantageous in the application process. This is a Software Engineer programme first. You may work with ...

build your skills to apply the best technology to solve a given problem. Right now, we use: A variety of languages, including Java and Go for backend and Typescript for frontend Open-source technologies like Kubernetes, Cilium, Envoy, Grafana, React, and Redux Industry-standard tooling, including Gradle and GitHub … Physics. Familiarity with data structures, storage systems, cloud infrastructure, front-end frameworks, and other technical tools. Experience coding in programming languages, such as Java, C++, Python, JavaScript, or similar languages. To apply, please submit the following An updated resume/CV - please do so in PDF format. Thoughtful responses ...

ICAP Group Services Ltd is seeking a Senior Java Developer based in the City Of London. The role involves designing and implementing low-latency trading system components while collaborating with diverse teams to ensure optimal performance and stability. Candidates should have substantial experience in Java, familiarity with cloud platforms ...

office strat, eTrading, or low-latency development role Background in a top-tier investment bank or similar electronic trading environment Strong programming skills in Java, ideally within low-latency systems Good understanding of fixed income markets (cash and/or derivatives) Knowledge of electronic trading workflows and market microstructure Strong ...

London office, which is now predominantly responsible for development of the UI for the application. The London team is an experienced group of Java and Scala developers, with a deep understanding of UI and UX design. We deliver our software using agile methodologies, and we encourage best practices such … building & deploying production web apps, with significant experience in React and modern TypeScript Willingness to take ownership of Scala backend (experience with Scala/Java preferred, but not required)experience with Scala/Java preferred, but not required) Mobile Capability: Experience building or maintaining cross-platform Mobile Apps Architecture & Design ...

seeking a seasoned, high-caliber Senior e-Trading Java Developer to join the UI & Electronic Trading team. You will contribute directly to a strategic multi-year greenfield build-out and modernization of our core Rates electronic trading platform. The position offers a dynamic working environment embedded closely with global trading … desks. The ideal candidate brings extensive buy-side or top-tier investment banking experience in Rates e-trading, deep low-latency Java expertise, and strong business-facing capabilities to elicit requirements directly from traders. Key Responsibilities & Accountabilities Core Platform Build: Design, develop, and optimize greenfield components of the Rates electronic ...

global consulting firm in London is seeking an experienced eFX Java Developer to design and maintain low-latency applications for electronic FX trading systems. Ideal candidates have a strong background in Core Java, multithreading, and real-time market connectivity, with experience in trading environments essential. This position focuses on optimizing ...

Atrium Workforce Solutions Ltd is seeking a VP Full Stack Engineer to work onsite in London, focusing on Solidity smart contracts, Angular frontend, and Java backend. The role emphasizes front-end leadership with substantial Solidity/Java work across a shared codebase. The contract is 12 months initially, inside IR35 ...

offices, gaining exposure to different local markets and financial products. Basic Qualifications: STEM degree Strong hands-on programming experience in at least one language (Java/Python) Proficient in AI-assisted development Knowledge of data structures, algorithms, and designing for performance Strong communication and interpersonal skills, with the ability … engage effectively with traders and salespeople Preferred Qualifications: Experience in Java or Python (5+ years) Experience in Slang/SecDB Experience in messaging middleware such as Kafka or RabbitMQ Experience in developing and testing distributed systems Daily Activities: Engage with users to understand business workflows and define requirements. Implement ...

London office, which is now predominantly responsible for development of the UI for the application. The London team is an experienced group of Java and Scala developers, with a deep understanding of UI and UX design. We deliver our software using agile methodologies, and we encourage best practices such … expertise Experience building web applications using React and TypeScript Familiarity with typical software development workflows, including using Git for version control Familiarity with Scala, Java, or another JVM language, with willingness to learn Scala and Play Framework. Mobile Interest: Exposure to mobile development and interest in learning cross-platform mobile ...

Integration Architect/Senior Integration Architect - JAVA/AWS (ESSENTIAL) £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 they are implementing a whole ...

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 ...

Java EngineerJava Engineer esynergy London Hybrid Do you enjoy building scalable, customer-facing applications using Java, microservices and modern cloud technologies? Role overview We are looking for an experienced Java Engineer to join one of our strategic programmes, where esynergy is delivering a major piece of work for a FinTech ...

Role Overview We are looking for a Senior Azure Cloud Architect to lead the migration and modernization of enterprise Java applications from on-premise environments to Microsoft Azure. Key Responsibilities Lead on-prem to Azure migration programmes (assessment, design, execution) Define Azure landing zones and cloud governance models Design secure … scalable, and highly available Azure architectures Modernize Java applications (monolith to microservices where applicable) Required Skills Strong Azure architecture experience (enterprise scale) Proven migration & modernization delivery experience Strong Java background (Spring Boot, microservices) #J-18808-Ljbffr ...

Markets is seeking a Senior Low Latency Java Developer to join our Quantitative Strategies team within Pricing & Risk, working on our high-performance, high-frequency trading platform. This is a hands-on role at the core of our market-making technology stack, where nanoseconds matter and engineering excellence is critical. … within our London office (near Liverpool street) 5 days on site per week. The Role Ultra-Low Latency Engineering Develop and optimise high-performance Java (21+) systems for pricing, risk and trading. Build and enhance components within a low latency, high-throughput trading architecture. Apply advanced concurrency, memory management ...