1 to 25 of 64 Java Software Engineer Jobs in London

Java Software Engineer – Asset Management Software 💰 Salary: £80,000 - £100,000 + bonus + benefits 📍 Approximately 2 days a week in Central London office. A central London-based company, who are building trading software for the asset management and hedge fund industry, are looking for … a Java Software Engineer to join them on their mission. This scale-up is a spin-out from one of the largest UK born global asset managers. ⭐ They are looking for a Java Software Engineer with the following: Mid level commercial Core Java … high-throughput experience AWS/Public Cloud experience with DevOps tools An advocate for modern methodologies including TDD, pair-programming and CD 💻 Tech: Core Java, Multithreading, Concurrency, AWS, DevOps, ActiveMQ/MongoDB, Kafka The role will suit a Java Software Engineer with a strong enthusiasm to More ❯

Job Title: Java Software Engineer (Junior - Mid Level - Senior/Lead) Client: Elite Quant Trading Firm Salary: £50,000 - £170,000 Base (+ Bonus) Location: London/Hybrid/Remote Options The role: My client is looking for an experienced Java Software Engineer to … platform that you will be crucial in developing. Our client prides itself on maintaining cutting-edge technology and a progressive work environment. As a Java Software Engineer you will be tasked with designing and developing high-performance applications from scratch, harnessing our clients dedication to upholding the … highest tech standards in industry. Key Requirements: Degree in Computer Science or STEM based subjects from a top university. Strong programming skills as a Java Software Engineer. 2+ years of experience in software engineering or a similar domain. Experience using Core Java (preferable) Experience with concurrency More ❯

Job Title: Java Software Engineer (Junior - Mid Level - Senior/Lead) Client: Elite Quant Trading Firm Salary: £50,000 - £170,000 Base (+ Bonus) Location: London/Hybrid/Remote Options The role: My client is looking for an experienced Java Software Engineer to … platform that you will be crucial in developing. Our client prides itself on maintaining cutting-edge technology and a progressive work environment. As a Java Software Engineer you will be tasked with designing and developing high-performance applications from scratch, harnessing our clients dedication to upholding the … highest tech standards in industry. Key Requirements: Degree in Computer Science or STEM based subjects from a top university. Strong programming skills as a Java Software Engineer. 2+ years of experience in software engineering or a similar domain. Experience using Core Java (preferable) Experience with concurrency More ❯

Java Software Engineer/Developer London to £110k Are you a bright, ambitious Software Engineer with a strong knowledge of core Java and an eagerness to learn and progress your career working on complex financial trading systems? You could be joining the Investment Management … arm of a global bank. As a Java Software Engineer you will research strategies for tailoring prices and controlling the behaviour of auto-hedging, you'll write production quality Java code used for pricing and hedging FX instruments and oversee the algorithms' performance intraday, ensuring that … discipline You have a thorough understanding of Computer Science fundamentals such as OOP, Data Structures, Design Patters, Algorithms You have a deep knowledge of Java including garbage collection You have a strong appreciation of low latency systems and code optimisation to ensure speed You have experience within a financial More ❯

Java Software Engineer/Developer London to £110k Are you a bright, ambitious Software Engineer with a strong knowledge of core Java and an eagerness to learn and progress your career working on complex financial trading systems? You could be joining the Investment Management … arm of a global bank. As a Java Software Engineer you will research strategies for tailoring prices and controlling the behaviour of auto-hedging, you'll write production quality Java code used for pricing and hedging FX instruments and oversee the algorithms' performance intraday, ensuring that … discipline You have a thorough understanding of Computer Science fundamentals such as OOP, Data Structures, Design Patters, Algorithms You have a deep knowledge of Java including garbage collection You have a strong appreciation of low latency systems and code optimisation to ensure speed You have experience within a financial More ❯

Java Software Engineer – Asset Management Technology 💸 Up to £100,000 + bonus + benefits 📍 Hybrid – 2 days/week in Central London Join a cutting-edge, cloud-native SaaS company backed by one of the UK’s leading global asset managers as a Java Software Engineer . They’re redefining portfolio management through an open architecture platform that puts control in the hands of the user – whether for multi-asset, single-asset, or transformational investment businesses. As a Java Software Engineer , you’ll be part of a high-performing team … building distributed, low-latency systems designed for speed, scale, and resilience. 🧠 What They’re Looking For: 2+ years’ commercial experience with Java Solid grasp of multithreading, concurrency , and high-throughput system design A passion for TDD, pair programming , and continuous delivery practices Computer Science degree from a Russell Group More ❯

Java Software Engineer – Asset Management Technology 💸 Up to £100,000 + bonus + benefits 📍 Hybrid – 2 days/week in Central London Join a cutting-edge, cloud-native SaaS company backed by one of the UK’s leading global asset managers as a Java Software Engineer . They’re redefining portfolio management through an open architecture platform that puts control in the hands of the user – whether for multi-asset, single-asset, or transformational investment businesses. As a Java Software Engineer , you’ll be part of a high-performing team … building distributed, low-latency systems designed for speed, scale, and resilience. 🧠 What They’re Looking For: 2+ years’ commercial experience with Java Solid grasp of multithreading, concurrency , and high-throughput system design A passion for TDD, pair programming , and continuous delivery practices Computer Science degree from a Russell Group More ❯

Java Software Engineer – Real Time Systems | £70k - £95k + 20% Bonus Location: London (hybrid 1-2 days a week) Are you a Software Engineer passionate about building cutting-edge, high-performance systems? Do you thrive in an agile, fast-paced environment where innovation and collaboration … flagship product which delivers a seamless, cost-effective solution that integrates with banking applications to power the future of payments. The Role As a Software Engineer, you will play a key role in developing asynchronous, event-driven systems that ensure speed, scalability, and resilience. You’ll work with … Java 17+, Spring WebFlux, AKKA, Kafka and more to build solutions that process millions of transactions in real time. Develop high-quality code using TDD & BDD methodologies. Contribute to architecture and design decisions for an advanced payments platform. Optimise applications for high availability and scalability. Work in a highly More ❯

Java Software Engineer – Real Time Systems | £70k - £95k + 20% Bonus Location: London (hybrid 1-2 days a week) Are you a Software Engineer passionate about building cutting-edge, high-performance systems? Do you thrive in an agile, fast-paced environment where innovation and collaboration … flagship product which delivers a seamless, cost-effective solution that integrates with banking applications to power the future of payments. The Role As a Software Engineer, you will play a key role in developing asynchronous, event-driven systems that ensure speed, scalability, and resilience. You’ll work with … Java 17+, Spring WebFlux, AKKA, Kafka and more to build solutions that process millions of transactions in real time. Develop high-quality code using TDD & BDD methodologies. Contribute to architecture and design decisions for an advanced payments platform. Optimise applications for high availability and scalability. Work in a highly More ❯

Backend Software Engineer/Developer London onsite to £160k Are you a Java technologist with strong knowledge of software engineering best practices and backend development experience looking for an opportunity to progress your career in a senior, hands-on role with complex and challenging work? You … could be joining a scaling Cyber Security technology company that has just received £100 million investment. As a Backend Software Engineer you'll join a small, Agile team using core Java within a TDD environment deploying to AWS. You'll design and develop new features and enhancements … week with a wide range of facilities and an array of perks including free, chef cooked meals. About you: You have strong backend core Java development skills You have a strong knowledge of software engineering best practices and have experience with TDD You have a good knowledge of More ❯

Job Title: Senior Java Engineer - Trading Location: London Salary Up to £170,000 base + discretionary Bonus Company: Our client is a prestigious trading firm located in the heart of London. With a strong focus on multi-strategy, multi-asset trading, they have consistently excelled in the dynamic … and fast-paced world of financial markets. They are currently seeking a Senior Java Engineer to join their elite team and drive the development of mission-critical software solutions. Position Overview: As a Senior Engineer at our client's firm, you will play a pivotal role … in developing and maintaining the software that powers their high-frequency trading operations. The ideal candidate will have a proven track record of building mission-critical software systems, and preferably come from a financial or trading background. Responsibilities: Designing, development, and maintenance of high-performance, low-latency trading More ❯

Job Title: Senior Java Engineer - Trading Location: London Salary Up to £170,000 base + discretionary Bonus Company: Our client is a prestigious trading firm located in the heart of London. With a strong focus on multi-strategy, multi-asset trading, they have consistently excelled in the dynamic … and fast-paced world of financial markets. They are currently seeking a Senior Java Engineer to join their elite team and drive the development of mission-critical software solutions. Position Overview: As a Senior Engineer at our client's firm, you will play a pivotal role … in developing and maintaining the software that powers their high-frequency trading operations. The ideal candidate will have a proven track record of building mission-critical software systems, and preferably come from a financial or trading background. Responsibilities: Designing, development, and maintenance of high-performance, low-latency trading More ❯

Java Software Developer – Front Office | London A leading investment bank is looking for a Java Software Developer to join its cross-asset pricing and risk team in London. This is a permanent Front Office role offering deep technical challenges, regular contact with the desk, and a … on performance, scalability, and clean architecture Contribute to the re-architecture of pricing for speed and efficiency (e.g., pre-calculated sensitivities) Tech Environment Core Java (Java 17+), multithreaded – essential Python – highly desirable React – small part of the stack, nice to have Messaging tech: Solace (Ideal), Aeron, or Kafka … etc. Candidate Profile 8+ years of experience in Java development Strong Front Office exposure – must have Pricing or risk platform experience is a plus Confident communicator with the ability (and experience) to work closely with the desk and quants Why Apply? Hybrid working: 2–3 days from home Emphasis More ❯

Java Software Developer – Front Office | London A leading investment bank is looking for a Java Software Developer to join its cross-asset pricing and risk team in London. This is a permanent Front Office role offering deep technical challenges, regular contact with the desk, and a … on performance, scalability, and clean architecture Contribute to the re-architecture of pricing for speed and efficiency (e.g., pre-calculated sensitivities) Tech Environment Core Java (Java 17+), multithreaded – essential Python – highly desirable React – small part of the stack, nice to have Messaging tech: Solace (Ideal), Aeron, or Kafka … etc. Candidate Profile 8+ years of experience in Java development Strong Front Office exposure – must have Pricing or risk platform experience is a plus Confident communicator with the ability (and experience) to work closely with the desk and quants Why Apply? Hybrid working: 2–3 days from home Emphasis More ❯

An exciting opportunity has arisen for a Senior Java Software Engineer to join a highly reputable company whose software products are used by 1000's of customers across the UK. The company is committed to internal training and career progression, as well as fostering diversity and … the office on average) and their modern offices are easily accessible via London and surrounding areas. Responsibilities: Serve as a senior member of the Java Development team, mentoring junior members Serve as a key contributor in a Java, Spring, AWS, and Microservices environment. Lead the redevelopment of existing … with offshore teams and engage with senior internal stakeholders. Adhere to DevOps best practices. Ensure compliance with SOLID principles. Technical Requirements: 7+ years of software development experience Commercial experience with Java, Spring and AWS Good commercial understanding of Agile and DevOps Full software development life cycle (SDLC More ❯

An exciting opportunity has arisen for a Lead Java Software Engineer to join a highly reputable company whose software products are used by 1000's of customers across the UK. The company is committed to internal training and career progression, as well as fostering diversity and … the office on average) and their modern offices are easily accessible via London and surrounding areas. Responsibilities: Serve as a lead member of the Java Development team, mentoring junior members Serve as a key contributor in a Java, Spring, AWS, and Microservices environment. Lead the redevelopment of existing … with offshore teams and engage with senior internal stakeholders. Adhere to DevOps best practices. Ensure compliance with SOLID principles. Technical Requirements: 7+ years of software development experience Commercial experience with Java, Spring and AWS Good commercial understanding of Agile and DevOps Full software development life cycle (SDLC More ❯

About the Role As a Java Senior Software Engineer working on our backend team, you will be contributing to our Kotlin and Java backend applications and systems development on our suite of IT Software products. Working in a team where Product, Engineering and QA join … customers to administer, protect and maintain millions of endpoints and servers. You will have the opportunity to design and develop high-availability mission critical software systems that support our worldwide operations. We hire the best software engineers with experience in our stack: NinjaOne is built on Java … the horizon Support and provide constructive feedback on the team's design choices and code Write project documentation and its support Develop and execute software test plans in order to identify software problems and their causes Other duties as needed About You Bachelor's degree or equivalent education More ❯

Java Software Engineer Provider of FX Trading Solutions seek Java Engineers to work on low latency, high performance, real time applications. You will have the opportunity to build high-speed, data-intensive applications that scale elastically meet tough performance requirements. You will work within a pod … trading services, order routing, FIX connectivity, real-time price services, database designs, cloud-based micro-services, big data solutions and more. Good general Core Java, algorithms etc is required and the role will be 3 days a week onsite in London. Skills needed: Core Java and happy to More ❯

Job title - Java Software Engineer Location - London, UK We are seeking a Senior Java Backend Engineer with a strong background in Java, Spring Framework , and modern NoSQL/distributed caching technologies . Key Responsibilities Design, develop, and maintain robust backend systems using Java … Apache Ignite Work closely with DevOps to containerize applications using Docker Must-Have Qualifications 5+ years of hands-on experience in backend development with Java and Spring Boot Strong understanding of RESTful APIs and microservice architecture Production experience with NoSQL databases (MongoDB preferred; DynamoDB, Redis, or similar are a More ❯

Job title - Java Software Engineer Location - London, UK We are seeking a Senior Java Backend Engineer with a strong background in Java, Spring Framework , and modern NoSQL/distributed caching technologies . Key Responsibilities Design, develop, and maintain robust backend systems using Java … Apache Ignite Work closely with DevOps to containerize applications using Docker Must-Have Qualifications 5+ years of hands-on experience in backend development with Java and Spring Boot Strong understanding of RESTful APIs and microservice architecture Production experience with NoSQL databases (MongoDB preferred; DynamoDB, Redis, or similar are a More ❯

About the Role As a Java Senior Software Engineer working on our backend team, you will be contributing to our Kotlin and Java backend applications and systems development on our suite of IT Software products. Working in a team where Product, Engineering and QA join … customers to administer, protect and maintain millions of endpoints and servers. You will have the opportunity to design and develop high-availability mission critical software systems that support our worldwide operations. We hire the best software engineers with experience in our stack: NinjaOne is built on Java … the horizon Support and provide constructive feedback on the team's design choices and code Write project documentation and its support Develop and execute software test plans in order to identify software problems and their causes Other duties as needed About You Bachelor's degree or equivalent education More ❯

About The Role Job Level: 9 UK Wide We are looking for a Senior Software Engineer who will be responsible for designing, developing, and deploying high-quality software solutions. You will work on complex software projects, contributing to the architecture, development, and improvement of software systems. This role involves mentoring junior engineers, collaborating with cross-functional teams, and driving the adoption of best practices in software development. Responsibilities Design, develop, and maintain complex software solutions, ensuring they are robust, secure, tested and scalable. Contribute to software architecture decisions, ensuring alignment with … to develop their skills and promote best practices. Collaborate with cross-functional teams, including product management, UX/UI, DevOps, and QA, to ensure software meets business requirements. Implement and optimise CI/CD pipelines to enhance development efficiency and software quality. Conduct code reviews, providing constructive feedback More ❯

Mid-Level Java Engineer My client is a leading financial services firm dedicated to providing innovative solutions and cutting-edge technology in the finance sector. With a commitment to excellence, they are seeking a talented and experienced Mid-Level Java Engineer to join our dynamic team. … passionate about finance, technology, and thrive in a collaborative environment, we invite you to apply. Responsibilities: Design, develop, and maintain high-performance and scalable Java applications. Collaborate with cross-functional teams to understand project requirements and translate them into technical specifications. Implement best practices for software development, ensuring … contribute to a culture of continuous improvement. Qualifications: Bachelor's degree in Computer Science, Engineering, or related field. 3+ years of professional experience in Java development. Solid understanding of Kotlin and experience in using it for building robust applications. Proficiency in the Spring framework, including Spring Boot. Hands-on More ❯

Mid-Level Java Engineer My client is a leading financial services firm dedicated to providing innovative solutions and cutting-edge technology in the finance sector. With a commitment to excellence, they are seeking a talented and experienced Mid-Level Java Engineer to join our dynamic team. … passionate about finance, technology, and thrive in a collaborative environment, we invite you to apply. Responsibilities: Design, develop, and maintain high-performance and scalable Java applications. Collaborate with cross-functional teams to understand project requirements and translate them into technical specifications. Implement best practices for software development, ensuring … contribute to a culture of continuous improvement. Qualifications: Bachelor's degree in Computer Science, Engineering, or related field. 3+ years of professional experience in Java development. Solid understanding of Kotlin and experience in using it for building robust applications. Proficiency in the Spring framework, including Spring Boot. Hands-on More ❯

Job Description Senior Software Engineer with Python and Java Our Client is looking to recruit brilliant Software Engineer with upwards of 5 to 10 years solid proven track record of developing complex applications with Python coupled with Machine Learning and ideally Go. We're looking … to recruit initially 2 excellent Software Engineers to work with an existing team of 4 software developers on a very large strategic consulting engagement within the Life Sciences industry. So if you any experience with the Life Sciences domain - then the Client would be very interested to see … your profile. Must be 100% trustworthy with real integrity - this is a highly sensitive project. Key skills: Python, Machine Learning, Java The Client would like to see solid expertise of working with and developing complex applications with Java. Excellence is vital. Ideally have security clearance. The Client has offices More ❯