2,051 to 2,075 of 2,281 Java Jobs in London

multiple teams, deepen architectural thinking, and raise the bar on technical execution, product delivery, and long-term platform health. Your technical grounding is in Java and Spring Boot, and you connect technical decisions to user and business outcomes while collaborating with engineering managers, product leads, and domain #J-18808-Ljbffr ...

looking for Bachelor’s degree in Computer Science or a related technical discipline 3–5 years of commercial software development experience using Java Background working on complex, performance-sensitive systems within fintech, finance, or similar domains What you’ll do Design, build, and enhance scalable applications used directly by front ...

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 ...

Senior Java Architect Banking, Payments & AI Engineering Location: London (Hybrid) Role Type: Contract Rate: Up to £600 a day (Outside IR35) We're seeking an experienced Java Architect to play a key role in a major banking transformation programme, helping to deliver enterprise-scale banking and payments platforms with ...

Associate Director @ Opus Recruitment Solutions | Shaping the Future of Tech firms across UK (JVM - Java, Scala & Kotlin) 🚀 Senior Full Stack Developer – Java & React Build Products That Shape High‐Stakes Decision‐Making I have partnered up with a fast‐growing tech firm who are building AI powered tools used by Fortune … work on complex, high‐impact systems where performance, security and clarity really take precedence. You’ll work hands‐on across a React frontend and Java/Spring Boot backend, guiding architecture, mentoring developers and delivering features that power intelligent, insight‐driven decision platforms. You’ll be part of a role ...

Provntalent is seeking a Senior Java Trading Systems Developer to advance its electronic trading technology. You will design, build and optimize Java-based trading systems, impacting order routing, execution and lifecycle processes across multiple markets. The ideal candidate brings deep experience in electronic trading or capital markets, strong Java software ...

cases by delivering clean, reliable data Identify gaps and drive platform improvements or new capabilities Gradually influence architecture decisions and engineering standards Experience with Java development to build services and libraries with Java 21 and above Hands-on experience with foundational AWS services, such as; ALB, ECS, S3, ElastiCache ...

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 ...

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 ...

Bring: Demonstratable ability to work effectively in a collaborative team environment, mentoring junior team members and contributing to a positive team culture. Experience with Java development to build services and libraries with Java 21 and above. Experience in developing and supporting backend systems for data processing within AWS. Hands ...

Citi is seeking a Core Engineering Java Development Lead – FX Tech (SVP) to architect, build, and evolve robust Java services for global finance. You will shape technical direction, work with senior engineers and quants, and deliver high-quality systems in a modern event-driven environment. The role emphasizes delivery, maintainability ...

McGregor Boyall is seeking a Senior Java Developer for its London Electronic Trading engineering team. You will design low-latency Java applications, work with traders and quantitative teams, and help scale critical trading platforms across asset classes. Hybrid role with three days in the office, you will contribute to high ...

systems covering various aspects such as trading systems, exchange connectivity solutions, and monitoring systems. Apply your expertise in multiple programming languages, including Python or Java, to successfully accomplish development tasks. Conduct thorough testing at the unit, functional, and integration levels to ensure software reliability and performance. Handle both legacy code … traders, researchers, and software engineers. Qualifications: Experience in designing, developing, and supporting mission-critical, high-performance applications. Strong professional experience in Python (5+ years), Java and or C++Demonstrated expertise in network communication, including multicast and WebSockets. Proficiency in inter-process messaging, micro-service architectures, and API design. Familiarity with Functional ...

growth and stability. The position is for a Ruby Web Application Developer to build new and maintain existing Rails applications communicating with a Java API. The developer will be working within an Agile team to design and deliver high quality applications. The Ruby/JavaScript Web Developer will also … development has sufficient test coverage to maintain qualityThe project will be stabilising the development of their web based platform which is built on Java and AWS EC2 and Ruby. This project will involve getting to know the platform and then adding greenfield functionality as well as brining the platform together. ...

stability. The position is for a hands on Lead Developer to build new and maintain existing frontend applications and sites communicating with a Java API. The current team has 2 bleeding edge ruby and frontend developers who need leadership to keep them from evangelising the world off. The Frontend team … development has sufficient test coverage to maintain qualityThe project will be stabilising the development of their web based platform which is built on Java and AWS EC2 Javascript and Ruby. This project will involve getting to know the platform and then adding greenfield functionality as well as brining the platform ...

London Stock Exchange Group (LSEG) is seeking a Senior C++/Java Developer in London. The role focuses on designing, developing, and delivering high-quality software solutions across C++ and Java stacks within a defined product or platform area. You will collaborate with senior engineers, architects, and product managers ...

applications and services. Proven experience managing a team of engineers across global locations. Extremely proficient in Python and an object-oriented language such as Java or C/C++. Skilled in implementing data visualizations using Tableau, Dash, or Power BI. Familiarity with Scala, Java, and/or kdb/Q. ...

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 ...

Support, maintain, and enhance application hosting and build platforms across AWS, Kubernetes, Jenkins, and GitHub Develop automation and tooling using Python, Java/Groovy, Go, and Terraform Lead code reviews and champion engineering best practices for security, performance, maintainability, and testing Contribute to technical standards and continuous improvement initiatives Maintain … complex engineering problems and maintain reliable production environments while mentoring other engineers. Highest-signal resume keywords AWS Kubernetes Python Terraform Code Reviews Hard Skills Java Groovy Go Automation Infrastructure Testing Distributed Systems Software Development Lifecycle Maintainable Code Performance Optimization Security Best Practices Soft Skills Collaboration Mentoring Problem Solving Communication Stakeholder ...

seeking someone to join our team as anexperienced algorithmic trading Java developer to support the Structured and Exchange-Traded Product market-making businesses. The candidate should possess good analytical skills and computer programming experience and a logical approach to problem solving. The role involves building, deploying and supporting algorithmic trading … clients and our communities in more than 40 countries around the world. What you’ll do in the role: You will be using core Java to build and enhance trading strategies and engines. The role involves working directly with trading, quant and IT teams to advance the platform ...

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 ...

stack and want to keep growing as full-stack engineers. You’ll work mainly with TypeScript, React and Node, with opportunities to contribute to Java, Scala, iOS and Android as you grow across the stack. You do not need to be an expert in everything, but you should be adaptable … needed. Key Responsibilities Build and maintain full-stack applications, integrations and internal tools using React, TypeScript, Node.js, Express and SQL, while also contributing to Java, Scala, iOS and Android Work closely with Product Support to build tools that help them resolve more issues quickly and independently Investigate and resolve complex ...

focus (quiet coding area, loud games room).The position is for a senior Ruby Developer to build a new Rails application communicating with a Java API. The current team has 5 bleeding edge ruby and frontend developers who need some help to keep them from evangelising the world off. … sharp end of technology and the possibility of making serious money doing something you are passionate about. My client is based in Central LondonRuby, Java, Ruby on Rails, CSS, HTML5, Linux REST, Javascript Lead Ruby Developer ...

regularly with product leads across the technology organization and discuss opportunities for improvement to existing and future technology solutions. You will be using core Java development to build and enhance trading strategies and engines The role involves working directly with the global trading, quant and IT teams to advance … deploying the changes The systems you will work on are high volume, low latency, resilient, scalable and message-driven based on cutting edge Java and utilising the latest hardware What you’ll bring to the role: Ability to effectively manage multiple functions or guide junior staff and initiatives. Advanced understanding ...

systems covering various aspects such as trading systems, exchange connectivity solutions, and monitoring systems. Apply your expertise in multiple programming languages, including Python or Java, to successfully accomplish development tasks. Conduct thorough testing at the unit, functional, and integration levels to ensure software reliability and performance. Handle both legacy code … among traders, researchers, and software engineers. Qualifications: Experience in designing, developing, and supporting mission-critical, high-performance applications. Strong professional experience in C++ , Rust, Java and PythonDemonstrated expertise in network communication, including multicast and WebSockets. Proficiency in inter-process messaging, micro-service architectures, and API design. Familiarity with Functional Programming ...