126 to 150 of 3,581 Java Jobs in London

of expertise to join the team. As with most service teams, there will eventually be a periodic on call rotation as part of this role. Our developer kitchen includes: Java, REST, Docker, Kubernetes, μservice, Grafana and much more. The Position Principal Software Engineer (IC4) As a Principal Software Engineer, you will already be a world-class engineer with top-notch … well as security and work comfortably in a collaborative, agile environment. Responsibilities As an IC4 your responsibilities could include, but not be limited to: Design and develop software in Java, Python, and other languages. Participate in the entire software lifecycle – development, testing, CI/CD and production operations Apply engineering principles for defining robust and maintainable architectures and designs. Build … z2bz0 years of developing and shipping distributed enterprise and/or cloud native systems, or similar technically complex projects. Demonstrable ability to write great code in modern Java (17+), Python, or similar OO languagesExperience leading teams, coaching & mentoring junior engineers. Strong grasp of system design fundamentals and distributed systems architectural best practices Experience building microservices and RESTful services Experienced at More ❯

multiple time zones and continents You have a solid understanding of computer science and engineering fundamentals You are proficient in one or more of the following programming languages: C#, Java, C, C++, Python, SQL, or Scala You have a Bachelor’s/Master’s level degree in computer science or relevant engineering-related field or equivalent experience. Not everyone has … CI/CD), ideally both as a consumer and as someone who has enabled such solutions in their past roles Proficiency with a modern language such as C# or Java or Golang or Python Experience working in large codebases, organizing and refactoring Experience with configuration management A variety of technical opportunities is one of the best things about working at More ❯

a degree in mathematics, computer science, statistics, physics, or equivalent experience Have strong coding skills in high-level languages such as Perl, Python, C/C++, Go, Rust, NodeJS, Java, or similar, with a flexible approach to learning new languages Be experienced with Perl, Python 3, and NodeJS, and willing to work with or learn these technologies Possess robust scripting More ❯

Technology Industries IT Services and IT Consulting Referrals increase your chances of interviewing at LocalStack by 2x Sign in to set job alerts for “Senior Software Engineer” roles. Senior Java Engineer - Take Ownership of Flagship Trading Product - Up to £120k London, England, United Kingdom 3 weeks ago Senior C++ Engineer (Mandarin Speaker) - London/Remote from the UK London, England More ❯

and mentor a team of engineers, fostering collaboration and growth Hands-on experience designing and implementing microservices-based architectures with a focus on scalability and reliability Proficiency in either Java or Kotlin, and Spring Boot, with experience in building scalable, distributed systems Strong analytical and debugging skills, with the ability to troubleshoot complex systems in production. Excellent verbal and written More ❯

and mentor a team of engineers, fostering collaboration and growth Hands-on experience designing and implementing microservices-based architectures with a focus on scalability and reliability Proficiency in either Java or Kotlin, and Spring Boot, with experience in building scalable, distributed systems Strong analytical and debugging skills, with the ability to troubleshoot complex systems in production. Excellent verbal and written More ❯

Room About you: 5+ years of experience in software development, with a strong focus on backend technologies and building distributed services. Proficiency in one or more programming languages including Java, Python, Scala or Golang. Experience with columnar, analytical cloud data warehouses (e.g., BigQuery, Snowflake, Redshift) and data processing frameworks like Apache Spark is essential. Experience with cloud platforms like AWS More ❯

drive complex, technical and highly commercial solutions. Experience supporting complex production application environments. Basic Qualifications: Proficiency in designing, developing, and testing software in one or both of Python and Java; open to using multiple languages. Experience architecting, designing, and developing applications in an Amazon Web Services, Google Cloud Platform, or Microsoft Azure cloud environment. Ability to reason about performance, security More ❯

and applied experience Hands-on practical experience in system design, application development, testing, and operational stability Proficient in at least one major programming language: Go, Python and/or Java Experience with Kubernetes and Terraform Experience in developing automated tests as an integral part of the development cycle. Overall knowledge of the Software Development Life Cycle Experience in developing, debugging More ❯

need Be a capable technical leader, who takes ownership of design and delivery and is willing to help grow and guide junior engineers towards appropriate target architectures Knowledge of java development standard methodologies and patterns with an understanding of how to craft low-latency, high-availability and performant applications Diverse technical experience and a proven ability to deliver high quality More ❯

Get AI-powered advice on this job and more exclusive features. Head of Global Delivery Centre | Tech Recruitment Partner @ developrec Full Stack Developer (React, Python and AWS) £60k - £80k – Remote in the UK – very occasional travel to London for a More ❯

Do you have 1 - 3 years commercial experience developing software with Java? Looking to join a company when you can make a real impact? 🚀 Java Software Developer – SaaS Solutions 🚀 💲 Salary – up to £55k + bonus 📍 Location – hybrid working 2 days a week in modern London office We have a fantastic brand-new opportunity for a Java Software Developer to join … driven long-standing partnerships with the likes of the Ministry of Defense, HM Treasury, and the Departments of Work & Pensions and International Trade. They are looking for a motivated Java Software Developer with experience with: Java Spring Boot Microservices Containerisation using Docker, Kubernetes Developing cloud-native applications with AWS, GCP, Azure SQL, NoSQL and other tools and scripting skills As … a Java Software Developer, you will enjoy fantastic benefits: Bonus Private health insurance (covering eye and dental too) Life assurance Enhanced pension contributions 25 days holiday + bank holiday which increases with tenure Season ticket loan Team away days and monthly socials Personal development training budget Enhanced maternity and shared parental leave If you would like to join a company More ❯

Do you have 1 - 3 years commercial experience developing software with Java? Looking to join a company when you can make a real impact? 🚀 Java Software Developer – SaaS Solutions 🚀 💲 Salary – up to £55k + bonus 📍 Location – hybrid working 2 days a week in modern London office We have a fantastic brand-new opportunity for a Java Software Developer to join … driven long-standing partnerships with the likes of the Ministry of Defense, HM Treasury, and the Departments of Work & Pensions and International Trade. They are looking for a motivated Java Software Developer with experience with: Java Spring Boot Microservices Containerisation using Docker, Kubernetes Developing cloud-native applications with AWS, GCP, Azure SQL, NoSQL and other tools and scripting skills As … a Java Software Developer, you will enjoy fantastic benefits: Bonus Private health insurance (covering eye and dental too) Life assurance Enhanced pension contributions 25 days holiday + bank holiday which increases with tenure Season ticket loan Team away days and monthly socials Personal development training budget Enhanced maternity and shared parental leave If you would like to join a company More ❯

of robust systems that generate and manage automated documentation workflows for banks. While the broader tech stack includes Node.js, JavaScript, and various database technologies, this role focuses primarily on Java and backend architecture, especially for candidates without deep JavaScript experience. Key Responsibilities Develop, maintain, and scale backend services in Java Support and eventually contribute to Node.js components (with onboarding support … and contribute to a high-quality engineering culture Engage with banking-focused client requirements in a structured, agile environment Key Skills and Experience 4–7 years' professional experience in Java development Solid understanding of Java frameworks (Spring Boot, Hibernate) Practical knowledge of database systems (e.g., PostgreSQL, MySQL, MongoDB) Strong grasp of software engineering fundamentals and clean coding practices Basic exposure More ❯

of robust systems that generate and manage automated documentation workflows for banks. While the broader tech stack includes Node.js, JavaScript, and various database technologies, this role focuses primarily on Java and backend architecture, especially for candidates without deep JavaScript experience. Key Responsibilities Develop, maintain, and scale backend services in Java Support and eventually contribute to Node.js components (with onboarding support … and contribute to a high-quality engineering culture Engage with banking-focused client requirements in a structured, agile environment Key Skills and Experience 4–7 years' professional experience in Java development Solid understanding of Java frameworks (Spring Boot, Hibernate) Practical knowledge of database systems (e.g., PostgreSQL, MySQL, MongoDB) Strong grasp of software engineering fundamentals and clean coding practices Basic exposure More ❯

Role : Java Developer Location : London Work Mode: Hybrid ( 3 days work from office is a mandate) Experience : 8+ Years Job Description: About the Role: We are looking for a Senior Java Developer with strong expertise in Java 8+ , Spring Boot , and RDBMS technologies to join our dynamic team. The ideal candidate will have hands-on experience in building scalable, secure … high-performance applications in enterprise environments and should be comfortable working in a cloud-native and Linux-based environment. Key Responsibilities: Design, develop, and maintain robust backend applications using Java 8+, Spring, and Spring Boot. Implement data access layers using Hibernate and integrate with various RDBMS systems like SQL Server, PostgreSQL, Sybase, or DB2. Optimize existing codebases for performance, scalability … preferably Azure). Write unit and integration tests to maintain code quality. Participate in code reviews, technical discussions, and architecture decisions. Must-Have Skills: Strong hands-on experience with Java 8+ Proficiency with Spring/Spring Boot Deep understanding of Hibernate/JPA Experience with at least one major RDBMS (MS SQL, PostgreSQL, Sybase, DB2) Working knowledge of Linux command More ❯

Social network you want to login/join with: We are looking for a talented Java Developer to join our team and contribute to the design, development, and maintenance of high-performance applications. The ideal candidate will have a solid understanding of Java programming and be enthusiastic about working with the latest tools and frameworks in software development. You’ll … play a critical role in building scalable, high-quality software solutions. Key Responsibilities: Application Development : Design, develop, and implement Java applications using modern development tools and best practices. Code Quality : Write clean, scalable code, and participate in code reviews to maintain code quality. API Integration : Develop and integrate RESTful APIs for seamless communication between different systems and applications. Debugging and … participate in design discussions. Performance Optimization : Ensure that applications are optimized for speed, scalability, and performance. Documentation : Create and maintain comprehensive project documentation. Required Skills and Qualifications: Proficiency in Java : Strong hands-on experience with Java SE and Java EE, with the ability to write efficient and effective code. Frameworks : Experience with frameworks such as Spring Boot, Hibernate, and Struts. More ❯

Now Hiring: Senior Java Developer (Kafka) – 12-Month FTC (rolling with years of work available - up to £120k base 📍 Location: London (On-Site 4 days per week) 📅 Initial 12-month fixed-term contract rolling with years of work available A leading global trading firm is hiring a Senior Java Engineer with strong Kafka expertise to work on a mission-critical … up. The system has already gone live with its first electronic venue and is now scaling fast across multiple markets and asset classes. 🧠 What You’ll Be Working With Java 17 & Spring Boot 3 Apache Kafka for high-volume data streams Vertica & MSSQL Kubernetes (on-prem orchestration) Microservices architecture, containerised environments Agile delivery with strong autonomy and ownership 🎯 Your Impact … to a system designed to run with minimal dev involvement post go-live 🔍 What We’re Looking For Proven commercial experience with Apache Kafka in high-throughput systems Deep Java expertise (Java 17 preferred) Strong understanding of microservices, distributed systems, and containers Background in financial services or trading platforms is a major plus A proactive, delivery-focused engineer who thrives More ❯

Now Hiring: Senior Java Developer (Kafka) – 12-Month FTC (rolling with years of work available - up to £120k base 📍 Location: London (On-Site 4 days per week) 📅 Initial 12-month fixed-term contract rolling with years of work available A leading global trading firm is hiring a Senior Java Engineer with strong Kafka expertise to work on a mission-critical … up. The system has already gone live with its first electronic venue and is now scaling fast across multiple markets and asset classes. 🧠 What You’ll Be Working With Java 17 & Spring Boot 3 Apache Kafka for high-volume data streams Vertica & MSSQL Kubernetes (on-prem orchestration) Microservices architecture, containerised environments Agile delivery with strong autonomy and ownership 🎯 Your Impact … to a system designed to run with minimal dev involvement post go-live 🔍 What We’re Looking For Proven commercial experience with Apache Kafka in high-throughput systems Deep Java expertise (Java 17 preferred) Strong understanding of microservices, distributed systems, and containers Background in financial services or trading platforms is a major plus A proactive, delivery-focused engineer who thrives More ❯

Fimatix are a leading Software Delivery Consultancy and we specialise in supply various departments with HM Government. We are looking to recruit a contract Java/Go Developer for one of our HM Gov programmes. This is an initial 6 month contract and is INSIDE IR35. We are seeking a talented and motivated Java & Go Developer to help scale and … evolve a modern, cloud-native platform built on AWS and Kubernetes (EKS). Key Responsibilities · Design, develop, test, and deploy robust and scalable applications using Java and Go programming languages. · Integrate applications with AWS services, particularly AWS Simple Notification Service (SNS) for messaging and event-driven architectures. · Implement and maintain observability solutions, including logging, monitoring, and tracing, to ensure system … reviews to ensure code quality and adherence to best practices. · Contribute to the improvement of our development processes and tooling. · Stay up-to-date with the latest advancements in Java, Go, and ForgeRock technologies. · Document technical designs, implementations, and troubleshooting steps. Essential Skills · Strong proficiency in both Java (with experience in frameworks like Spring/Spring Boot) and Go. · Experience More ❯

Fimatix are a leading Software Delivery Consultancy and we specialise in supply various departments with HM Government. We are looking to recruit a contract Java/Go Developer for one of our HM Gov programmes. This is an initial 6 month contract and is INSIDE IR35. We are seeking a talented and motivated Java & Go Developer to help scale and … evolve a modern, cloud-native platform built on AWS and Kubernetes (EKS). Key Responsibilities · Design, develop, test, and deploy robust and scalable applications using Java and Go programming languages. · Integrate applications with AWS services, particularly AWS Simple Notification Service (SNS) for messaging and event-driven architectures. · Implement and maintain observability solutions, including logging, monitoring, and tracing, to ensure system … reviews to ensure code quality and adherence to best practices. · Contribute to the improvement of our development processes and tooling. · Stay up-to-date with the latest advancements in Java, Go, and ForgeRock technologies. · Document technical designs, implementations, and troubleshooting steps. Essential Skills · Strong proficiency in both Java (with experience in frameworks like Spring/Spring Boot) and Go. · Experience More ❯

Java Developer L ocation - London Clearance Required: UK*C DV/EDV About the Role: We are seeking a skilled Java Developer to join our growing team supporting projects in the Defence and National Security sector. You will work on mission-critical systems that support national safety, intelligence, and operational capabilities. This role demands a combination of strong technical skills … and an understanding of working within secure, regulated environments. Key Responsibilities: Design, develop, and maintain Java-based applications for secure systems. Participate in the full software development lifecycle: requirements gathering, analysis, design, development, testing, and deployment. Collaborate with cross-functional teams including system architects, cybersecurity specialists, and data analysts. Ensure code quality, security compliance, and performance through rigorous testing and … processes. Support integration with existing defence systems and third-party tools. Write and maintain documentation in line with secure software engineering practices. Required Qualifications and Skills: Proven experience in Java (SE/EE) development (typically 3+ years). Strong understanding of object-oriented programming and design patterns. Familiarity with agile methodologies Proficiency in tools such as Maven, Jenkins, Git, and More ❯

Software Engineer/Developer (Java 17 Kotlin AWS) London/WFH to £85k Are you a technologist Software Engineer with strong Java skills looking to progress your career, working with a modern cloud based infrastructure and a range of technology? You could be joining a hugely successful and growing commodities trading firm that specialise in trading whiskey. As a Software … introduce new features. There's an emphasis on code quality; designing and developing highly complex web based trading platforms working across the full development lifecycle. The technology stack includes Java 17, Kotlin, Spring Boot and AWS amongst others; you'll be encouraged to expand your skillset using the latest technologies and choosing the best tool for the job in a … 2.1 or above gained in Computer Science (or similar STEM discipline) from a top tier university (e.g. Russel Group) backed by A's at A-level You have strong Java and Kotlin development experience You have experience with Agile processes and TDD You have a thorough understanding of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms Other More ❯

Software Engineer/Developer (Java 17 Kotlin AWS) London/WFH to £85k Are you a technologist Software Engineer with strong Java skills looking to progress your career, working with a modern cloud based infrastructure and a range of technology? You could be joining a hugely successful and growing commodities trading firm that specialise in trading whiskey. As a Software … introduce new features. There's an emphasis on code quality; designing and developing highly complex web based trading platforms working across the full development lifecycle. The technology stack includes Java 17, Kotlin, Spring Boot and AWS amongst others; you'll be encouraged to expand your skillset using the latest technologies and choosing the best tool for the job in a … 2.1 or above gained in Computer Science (or similar STEM discipline) from a top tier university (e.g. Russel Group) backed by A's at A-level You have strong Java and Kotlin development experience You have experience with Agile processes and TDD You have a thorough understanding of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms Other More ❯

Social network you want to login/join with: Lead Java Software Engineer – Systematic Hedge Fund, London Client: Winston Fox Location: London, United Kingdom Job Category: Other - EU work permit required: Yes Job Views: 2 Posted: 10.06.2025 Expiry Date: 25.07.2025 Job Description: Lead Java Software Engineer with around 7-10 years of experience, including relevant Financial Markets knowledge, sought to … back, outside of Portfolio Management and Research systems, including Execution and Order Management systems, as well as Risk, Fund Accounting, Operations, and Corporate Functions. Software is mainly written in Java, but the team also works with Python, MATLAB, SQL, AWS, Docker, Kubernetes, Linux, and CI/CD, as well as integrating with various SaaS products, such as HRMS. You will … Buy Side and/or Electronic Trading, gained in FinTech, Investment Banks, Investment Managers, Market Venues, or Trading firms. Experience in line management, coaching, or team leadership. Strong core Java development skills with the ability to communicate effectively with technical and non-technical audiences. Experience with Python or MATLAB, and cloud/container technologies like AWS, Docker, and Kubernetes preferred. More ❯