1 to 25 of 45 Java Engineer Jobs in Central London

Java Software Engineer - Java, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence (Hybrid - 3 days a week in the office - Notting Hill) Description for the Java Software Engineer role:- You will be joining a fast-growing, research-driven company building an artificial intelligence using novel machine learning techniques. My client is revolutionising … their industry with a track record of building things that others have ruled out as impossible. The Java Software engineer will join a very bright, talented team of engineers with the guidance of technologists who have help build up some of the best known technology companies today. You will have a great opportunity to work with a variety … of languages, frameworks and tools. Applicants will need a background in Java and/or Python with a focus on Server side technologies. Core skills for the Java Software Engineer: 5yrs in a commercial Development role Solid experience of Java Good knowledge of Cloud Technologies (AWS) and Microservices Strong database knowledge (SQL and NoSQL) Degree in More ❯

Java Software Engineer - Java, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence (Hybrid - 3 days a week in the office - Notting Hill) Description for the Java Software Engineer role:- You will be joining a fast-growing, research-driven company building an artificial intelligence using novel machine learning techniques. My client is revolutionising … their industry with a track record of building things that others have ruled out as impossible. The Java Software engineer will join a very bright, talented team of engineers with the guidance of technologists who have help build up some of the best known technology companies today. You will have a great opportunity to work with a variety … of languages, frameworks and tools. Applicants will need a background in Java and/or Python with a focus on Server side technologies. Core skills for the Java Software Engineer: 5yrs in a commercial Development role Solid experience of Java Good knowledge of Cloud Technologies (AWS) and Microservices Strong database knowledge (SQL and NoSQL) Degree in More ❯

Java Engineer We’re working with a leading brokerage seeking a talented Java Engineer to join their high-performing technology team. This is an exciting opportunity to work on high-throughput, low-latency trading systems, where performance and reliability are paramount. The Role: You’ll play a key role in designing, developing, and optimising core trading … and risk systems. The ideal candidate will have a strong understanding of multithreaded Java applications, coupled with an appreciation for scalability, data integrity, and system performance. Tech Stack & Skills: Strong core Java (Java 8+), with proven experience in multithreading and concurrency Solid understanding of data structures, algorithms, and object-oriented design Experience in low-latency or high … with messaging frameworks (e.g. Kafka, JMS, ZeroMQ) desirable What’s on Offer: Salary £120k-£130k + bonus Hybrid working model (3 days onsite in London) If you’re a Java Engineer who loves building high-performance systems and wants to make an impact in a fast-moving financial environment, we’d love to hear from you. More ❯

Senior Java Engineer London Salary: £70,000 - 80,000 Bonus: TBC This is a hybrid role that requires 3 days a week office attendance About the Company An exciting opportunity has arisen for a Senior Java Engineer to be part of a highly innovative forward thinking online challenger bank start-up funded by a major fund. … building up the functionality of a bespoke best-of-breed banking technology, a single platform delivering loan issue, card issue and recovery. We’re looking for an exceptional Senior Java Engineer who will work closely with the Java Team Lead & CTO as we scale up and modernise our business processes and tech stack. The role includes hands … well as working with the CTO to define the technical architecture and integration requirements for the solution. This is a great opportunity for a leading edge, innovative, high-class Java developer to enter the company at a time when you can make your mark on the development of the company and contribute to the quality work that has already More ❯

Senior Java Engineer London Salary: £70,000 - 80,000 Bonus: TBC This is a hybrid role that requires 3 days a week office attendance About the Company An exciting opportunity has arisen for a Senior Java Engineer to be part of a highly innovative forward thinking online challenger bank start-up funded by a major fund. … building up the functionality of a bespoke best-of-breed banking technology, a single platform delivering loan issue, card issue and recovery. We’re looking for an exceptional Senior Java Engineer who will work closely with the Java Team Lead & CTO as we scale up and modernise our business processes and tech stack. The role includes hands … well as working with the CTO to define the technical architecture and integration requirements for the solution. This is a great opportunity for a leading edge, innovative, high-class Java developer to enter the company at a time when you can make your mark on the development of the company and contribute to the quality work that has already More ❯

Java Engineer A fast-growing Fintech innovating at the intersection of finance and blockchain seek a Java Engineer to join their expanding Crypto team to help design and build scalable, high-performance systems powering the next generation of digital assets. The Role As a key member of the Crypto team, you’ll work on mission-critical … technologies. You’ll collaborate closely with engineers and product teams to deliver robust, secure solutions that push the boundaries of fintech innovation. Tech Stack & Skills We Value Strong core Java development skills Spring Framework expertise Experience with Docker & Kubernetes (cloud-native environments) Familiarity with Kafka and event sourcing architectures Passion for clean, scalable, and well-tested code Exposure to … + strong benefits package Work in a fast-paced, innovation-driven environment Opportunity to make a real impact in the crypto and digital asset space If you’re a Java Engineer excited about solving complex problems in fintech and contributing to the future of digital assets, we’d love to hear from you. More ❯

Have you got a strong educational background from a Russell Group University? Do you have experience working in the financial industry? 💸 Java Software Engineer – FinTech Scaleup 💸 📍 Location: Hybrid working in Central London 💰 Salary: £80,000-100,000 + bonus We are very excited to once again be partnered exclusively with London’s leading investment management firm’s latest … scalable high-throughput software that is used by hedge funds and asset managements around the world. Due to an exciting pipeline of upcoming projects, they are looking for Core Java Software Engineers to join their team. You will be an excellent fit for this Core Java Engineer position if you: Have built scalable software from scratch Use … Core Java concepts, including Low Latency , Concurrent Programming & Multithreading Are used to working in a fast-paced environment Work in the financial industry e.g. Bank, Hedge Fund/Asset Management, FinTech Have clear experience with optimisation, efficiency and performance improvement As a Core Java Engineer, you will enjoy a wide array of benefits: Flexible working from home More ❯

Have you got a strong educational background from a Russell Group University? Do you have experience working in the financial industry? 💸 Java Software Engineer – FinTech Scaleup 💸 📍 Location: Hybrid working in Central London 💰 Salary: £80,000-100,000 + bonus We are very excited to once again be partnered exclusively with London’s leading investment management firm’s latest … scalable high-throughput software that is used by hedge funds and asset managements around the world. Due to an exciting pipeline of upcoming projects, they are looking for Core Java Software Engineers to join their team. You will be an excellent fit for this Core Java Engineer position if you: Have built scalable software from scratch Use … Core Java concepts, including Low Latency , Concurrent Programming & Multithreading Are used to working in a fast-paced environment Work in the financial industry e.g. Bank, Hedge Fund/Asset Management, FinTech Have clear experience with optimisation, efficiency and performance improvement As a Core Java Engineer, you will enjoy a wide array of benefits: Flexible working from home More ❯

Java Software Engineer Our client, a leading FX trading and liquidity solutions provider, is expanding its Core Engineering team and is looking for talented developers to build and optimise next-generation trading systems. What You’ll Do Design, develop, and enhance low-latency, high-throughput trading components. Work on real-time FX pricing, execution, and risk systems. Apply … with Quant, Trading, and Infrastructure teams to deliver robust, scalable solutions. Drive continuous improvement in system performance, resiliency, and efficiency. What We’re Looking For Strong background in Core Java (Java 8+), data structures, and algorithms. Proven experience with multithreading, concurrency control, and garbage collection tuning. Solid understanding of low-latency architectures and network I/O. Experience More ❯

Java Software Engineer (Product Engineering- Real-time Payments) Location: London, Hybrid (1-2 days/week) A Java Software Engineer is needed for a highly regarded payment solutions company; they are used by major global financial institutions standing out for its low-code, cloud-native real-time payments platform They’re looking for a Java Developer with a product engineering background to join their team, building highly available, scalable systems that power next-generation payments. Your Background/Tech Stack Java with Spring Reactive programming (AKKA etc) Kafka or JMS Solid understanding of CI/CD pipelines, automation, and Agile delivery practices. Experience working with MongoDB or other NoSQL databases. The Role Play … a key role in developing real-time payment processing systems using Java, Spring, and Reactive frameworks. Follow TDD and BDD methodologies to ensure clean, maintainable, and well-tested code. Contribute to technical and design decisions, shaping the future of the payments platform. Build reusable, modular code and optimise applications for maximum speed and scalability. Work within an Agile delivery More ❯

Java Developer (Middle Office) We’re seeking a skilled Java Developer to join a Middle Office Technology team at a leading global brokerage. This is a fantastic opportunity to work on complex, business-critical systems that support trade lifecycle management, risk, and P&L across multiple asset classes. The Role: You’ll work closely with traders, quants, and … operations to design and build robust Java solutions for middle-office processes. Expect a fast-moving environment where technical excellence and collaboration are valued. Key Responsibilities: Design, develop, and maintain core Java services supporting middle-office workflows Partner with business users to gather requirements and deliver high-quality solutions Contribute to architectural design and continuous improvement of the … platform Work alongside DevOps and QA teams to ensure smooth releases and reliable performance Skills & Experience: Strong core Java (Java 8+) development experience Experience in financial services — ideally within middle office, risk, or post-trade systems Knowledge of messaging systems (Kafka, JMS) and relational databases (SQL) Exposure to icroservices, REST APIs, and CI/CD environments Excellent communication More ❯

Java Engineer A fast-growing loyalty & rewards company helping brands create deeper, data-driven relationships with their customers seek skilled Java Engineers to help design and deliver cutting-edge Microservices powering next-generation loyalty experiences. What You’ll Do Design, build, and maintain scalable backend services using Java and Spring Boot Develop Microservices that integrate with … Contribute to system design, code reviews, and continuous improvement initiatives Help shape the technical direction of a rapidly evolving product ecosystem What We’re Looking For Strong experience with Java (8+), Spring Boot, and RESTful APIs Solid understanding of Microservices architecture and event-driven systems Exposure to cloud platforms (AWS, GCP, or Azure) Knowledge of CI/CD pipelines More ❯

Lead Java Engineer – London | £140k + Shares Java 21, Spring Boot, Microservices, TDD, BDD, REST, AWS, React You know that feeling when you’re not just writing code, you’re building the engine behind something that moves money, manages risk, and scales globally? That’s exactly what this team is doing. They’re a fast-growing FinTech … building real-time financial infrastructure from the ground up, card payments, transaction booking, FX flows, the kind of systems that need to be fast, secure, and bulletproof. Tech stack: Java 21 (you’ll need experience with Java 17+, must), Spring Boot, PostgreSQL, AWS, TDD, CI/CD, React. As a Lead Engineer, you’ll have the freedom More ❯

Senior Software Engineer – Backend (Java) 📅 6-Month Contract | 🏢 Hybrid (2 Days in Office) | 💷 £600 p/d inside ir35 We’re looking for a skilled Backend Java Engineer to join an innovative team on a 6-month contract. If you love solving complex problems, mentoring others, and working on cutting-edge data platforms at scale- this … one’s for you! 🙌 🌟 What you’ll do: 💻 Develop and maintain scalable, data-driven applications in Java 🛠️ Lead on requirements, design workshops, and solutioning 🤝 Mentor junior engineers and share best practices ☁️ Implement & optimise microservices and distributed systems on GCP (GKE, PubSub, BigQuery, Dataflow) using Docker & Kubernetes 🔄 Build and manage efficient data pipelines with streaming tech + relational/NoSQL … integration, and non-functional testing ⚡ Contribute to CI/CD practices with Jenkins and Git 🕵️ Troubleshoot, propose improvements, and stay ahead of emerging technologies 💡 What you’ll bring: 🔑 Strong Java & OOP experience 📊 Background in data platforms, frameworks & streaming technologies 🧩 Familiarity with microservices & distributed systems ☁️ Exposure to GCP (GKE, PubSub, BigQuery) 🗄️ Experience with relational/NoSQL databases 🐳 Proficiency with Docker More ❯

Senior Software Engineer – Backend (Java) 📅 6-Month Contract | 🏢 Hybrid (2 Days in Office) | 💷 £600 p/d inside ir35 We’re looking for a skilled Backend Java Engineer to join an innovative team on a 6-month contract. If you love solving complex problems, mentoring others, and working on cutting-edge data platforms at scale- this … one’s for you! 🙌 🌟 What you’ll do: 💻 Develop and maintain scalable, data-driven applications in Java 🛠️ Lead on requirements, design workshops, and solutioning 🤝 Mentor junior engineers and share best practices ☁️ Implement & optimise microservices and distributed systems on GCP (GKE, PubSub, BigQuery, Dataflow) using Docker & Kubernetes 🔄 Build and manage efficient data pipelines with streaming tech + relational/NoSQL … integration, and non-functional testing ⚡ Contribute to CI/CD practices with Jenkins and Git 🕵️ Troubleshoot, propose improvements, and stay ahead of emerging technologies 💡 What you’ll bring: 🔑 Strong Java & OOP experience 📊 Background in data platforms, frameworks & streaming technologies 🧩 Familiarity with microservices & distributed systems ☁️ Exposure to GCP (GKE, PubSub, BigQuery) 🗄️ Experience with relational/NoSQL databases 🐳 Proficiency with Docker More ❯

Senior Java Backend Engineer - Middle Office Location: London Hybrid: 3 days/week in London office Oliver Bernard have partnered with a global brokerage firm that is modernising its middle office technology to support real-time trade data processing and integration. They’re looking for a Senior Java Backend Engineer to join their London-based team … collaborate closely with global stakeholders across technology, operations and front office to ensure seamless data flow and system performance across the trade lifecycle. Your Background 5+ years of professional Java experience Strong Proficiency in SQL and generic scripting languages Proven Product Mindset Solid understanding of CI/CD pipelines The Role You will build new business features to improve … This is a fantastic opportunity to join a collaborative, high-performing technology team building business-critical systems that power global trading operations. Please apply now for more information. Senior Java Backend Engineer - Middle Office More ❯

Java Software Engineer Our client, a fast-growing payments technology company building next-generation solutions that power seamless, secure transactions around the world are seeking talented Java Engineers to join their collaborative and high-performing engineering team. What You’ll Do Design and build robust Microservices using Java and Spring Boot Work on scalable, event-driven … to deliver high-quality software Contribute to technical discussions, architecture decisions, and best practices Continuously improve system performance, reliability, and security What We’re Looking For Strong experience with Java (11+) and Spring Boot Solid understanding of microservices architecture and RESTful APIs Experience with AWS or another cloud platform Familiarity with CI/CD pipelines, Docker, and Kubernetes is More ❯

Java Software Engineer An ambitious AI company on a mission to reshape how businesses harness the power of data and automation are seeking Java Developers who thrive in modern, cloud-native environments and want to make real impact. What you’ll do Design and develop high-performance microservices using Spring Boot Build scalable, cloud-based applications on … solutions Contribute to system architecture, CI/CD pipelines, and code reviews Bring fresh ideas to a fast-moving, innovative environment What we’re looking for Strong experience with Java (11+) and Spring Boot Proven track record building and deploying Microservices Solid understanding of AWS services (ECS, Lambda, S3, etc.) Experience with RESTful APIs, Docker, and CI/CD More ❯

Senior Java Developer - Java, Springboot & AWS – paying up to £600/day (Inside IR35) – Hybrid (2x a week - London) – 6 month contract Our client is seeking a Senior Java Developer who is passionate about clean code, cloud-native systems, and building technology that makes a real impact. This is a unique opportunity to work in an agile … high-ownership engineering culture. What You'll Be Doing: Build and scale backend services using Java and Spring Boot Shape a modern microservices architecture for a high-availability platform Deploy and manage services in AWS with Kubernetes (EKS) Design, implement, and own features end-to-end from discovery to production support Advocate for clean code, automated testing, and CI … with cross-functional teams including product, design, and infrastructure Troubleshoot complex issues and help ensure system reliability and performance What You’ll Bring: Strong backend engineering experience, especially in Java and Spring Deep understanding of distributed systems and microservices Hands-on experience with AWS , Kubernetes , Docker , and Terraform Familiarity with CI/CD pipelines and testing best practices Solid More ❯

Senior Java Developer- London/Hybrid- up to £95k Our client an innovative and light footed fintech startup/scaleup brand are on a mission to revolutionise the credit and lending space. The brand who have now been running for the last 10 years and backed by VC investment are looking to hire a Senior Engineer to work … for people that are willing to come to their office 3 days per week, they may have a bit of flexibility on this and very flexible hours. Tech Stack: Java 11 (moving to Java 17) Relational Databases- SQL and ORM Tech (JPA, Hibernate) Frameworks- preferably Vaadin or JSF, Wicket, Spring MVC Spring Boot AWS Microservices ML/Big … ups, sprint panning, retrospectives and foster collaboration mentor more junior engineers collaborate with cross functional teams champion best practice Projects: migration from some monolithic architecture to microservices migration from java 11 to java 17 migration to new versions of Vaadin brand new lender platform and payment systems for their customers Building a white label solution or managed service More ❯

Senior Java Developer- London/Hybrid- up to £95k Our client an innovative and light footed fintech startup/scaleup brand are on a mission to revolutionise the credit and lending space. The brand who have now been running for the last 10 years and backed by VC investment are looking to hire a Senior Engineer to work … for people that are willing to come to their office 3 days per week, they may have a bit of flexibility on this and very flexible hours. Tech Stack: Java 11 (moving to Java 17) Relational Databases- SQL and ORM Tech (JPA, Hibernate) Frameworks- preferably Vaadin or JSF, Wicket, Spring MVC Spring Boot AWS Microservices ML/Big … ups, sprint panning, retrospectives and foster collaboration mentor more junior engineers collaborate with cross functional teams champion best practice Projects: migration from some monolithic architecture to microservices migration from java 11 to java 17 migration to new versions of Vaadin brand new lender platform and payment systems for their customers Building a white label solution or managed service More ❯

Senior Java Developer – Middle Office Platform (Credit & Rates Trading) Location: London Salary: £120K-£140K + up to 25% Bonus + benefits About the Company This global financial technology firm is renowned for combining cutting-edge engineering with a market-leading trading platform that powers electronic trading across Credit and Rates. Their flagship product is used daily by thousands of … paced, product-focused culture where engineers have direct impact on scaling systems that sit at the heart of global capital markets. The Role We are seeking a Senior Backend Java Engineer to play a key role in scaling the Middle Office platform of a world-leading electronic trading system. You’ll work on mission-critical backend services, collaborating … electronic markets. Global impact engineering: Collaborate with international teams, delivering systems used daily across the US, Europe, and Asia. What They’re Looking For 8+ years of professional Core Java development experience Strong knowledge of data structures and algorithms Hands-on experience with SQL and at least one scripting language (Python, Perl, Shell etc.) Solid understanding of network programming More ❯

Senior Java Developer – Middle Office Platform (Credit & Rates Trading) Location: London Salary: £120K-£140K + up to 25% Bonus + benefits About the Company This global financial technology firm is renowned for combining cutting-edge engineering with a market-leading trading platform that powers electronic trading across Credit and Rates. Their flagship product is used daily by thousands of … paced, product-focused culture where engineers have direct impact on scaling systems that sit at the heart of global capital markets. The Role We are seeking a Senior Backend Java Engineer to play a key role in scaling the Middle Office platform of a world-leading electronic trading system. You’ll work on mission-critical backend services, collaborating … electronic markets. Global impact engineering: Collaborate with international teams, delivering systems used daily across the US, Europe, and Asia. What They’re Looking For 8+ years of professional Core Java development experience Strong knowledge of data structures and algorithms Hands-on experience with SQL and at least one scripting language (Python, Perl, Shell etc.) Solid understanding of network programming More ❯

Java Developer – upto £140k plus shares Java21, Springboot, Microservices, TDD, AWS A well-funded, product-led tech startup is building a next-generation financial platform designed to serve millions across emerging markets. Their mission is to simplify access to stable, secure digital finance, enabling users to save, transact, and grow their money with confidence. We’re looking for x8 … Java Developers to join their core engineering team. You’ll help design and build backend systems that power real-time financial operations, from transaction processing to user authentication and fund management. The work is greenfield, the architecture is modular, and the impact is tangible. You’ll be working with a modern stack, contributing to a microservices ecosystem, and collaborating … across disciplines to deliver secure, scalable solutions. The ideal Java Developer will bring deep experience in Java (17+), a strong grasp of distributed systems, and a passion for building infrastructure that performs under pressure. Tech stack includes: Java 21, Springboot, Microservices, TDD, AWS, React. This is a mostly remote role with one day a week in office More ❯

Java London/Hybrid Contract The Role • Should have rich knowledge in Software Development Life Cycle Methodologies; excellent communication and interpersonal skills, capable of resolving multiple complex issues and motivating team to achieve peak performance • Create a comprehensive architecture for a software solution and providing strategic direction throughout the development process. Design and develop high-performance, scalable, and reliable … solutions using Java, Spring boot, Microservices technologies. • Work closely with business stakeholders to gather and analyse requirements, translating them into technical specifications and architectural designs. • Convert visionary concepts into enterprise-wide systems. • Coordinate with all stakeholders in architectural designs and software development. • Ensure compliance of best practices and policies in software development. Perform code reviews and provide feedback to … as training materials or sample code, to encourage acceptance of frameworks • Ensuring system integrity by utilizing proper architectural designs • Advising on security methods and implementing them • Design and deploy Java applications. • Develop strategic, logical, and physical designs. • Ensure products or projects are robust, scalable, and extensible. • Expertise in using Agile methodology • Analyse user requirements to define business objectives • Envisioning More ❯