101 to 125 of 3,911 Java Jobs in London

Role: Contract Senior Java Engineer Location: London (Hybrid | 3 days onsite initially) Contract Length: 6-Month Contract | Inside IR35 | £600–£700/day We’re looking for an experienced Senior Java Engineer to join our consultancy delivery team, supporting a flagship project with one of the UK’s leading digital banks . You’ll be embedded directly into the client … releasing multiple times per day is the norm. This is a hands-on engineering role with the opportunity to work on cutting-edge systems from day one. Tech Stack: Java 21 Spring Boot Kubernetes , AWS Grafana , GitHub Event-driven architecture, microservices CI/CD & rapid delivery tooling What You’ll Be Doing: Build scalable and secure microservices using Java … maintain production-grade reliability Work onsite 3 days/week in London for the first 4–6 weeks (hybrid flexibility beyond this) We’re Looking For: 5+ years of Java engineering experience (Java 11+; ideally Java 21) Strong background with Spring Boot , microservices, and cloud-native design Hands-on with Docker, Kubernetes , AWS , and containerised deployments CI/CD pipeline More ❯

Role: Contract Senior Java Engineer Location: London (Hybrid | 3 days onsite initially) Contract Length: 6-Month Contract | Inside IR35 | £600–£700/day We’re looking for an experienced Senior Java Engineer to join our consultancy delivery team, supporting a flagship project with one of the UK’s leading digital banks . You’ll be embedded directly into the client … releasing multiple times per day is the norm. This is a hands-on engineering role with the opportunity to work on cutting-edge systems from day one. Tech Stack: Java 21 Spring Boot Kubernetes , AWS Grafana , GitHub Event-driven architecture, microservices CI/CD & rapid delivery tooling What You’ll Be Doing: Build scalable and secure microservices using Java … maintain production-grade reliability Work onsite 3 days/week in London for the first 4–6 weeks (hybrid flexibility beyond this) We’re Looking For: 5+ years of Java engineering experience (Java 11+; ideally Java 21) Strong background with Spring Boot , microservices, and cloud-native design Hands-on with Docker, Kubernetes , AWS , and containerised deployments CI/CD pipeline More ❯

Java Full Stack Developer (Mid level with 7-12 years experience) Note: We are looking for Java Full Stack Developer with max 7-12 years experience and must be eligible for Security clearance The role requires in-depth understanding of the software development life cycle and strong technical experience with an open-minded attitude and ability to rapidly adapt and … learn. Must have skills: Extensive Server Side, hands-on Java 8+ development experience with strong Spring, Spring Boot & Hibernate Strong understanding of Microservice architecture Experience building web services and APIs on REST Strong understanding of unit & integration tests, following TDD/BDD Experience using test frameworks like Junit, Mockito, PowerMockito & Wiremock Experience and understanding of CICD pipeline of Docker, Jenkins More ❯

Lead Java/C# Engineer - Contract outside IR35 A leading financial services firm based in London is seeking a Lead Java/C# Engineer on a contract basis to drive forward the delivery of a high-performance, cloud-native platform built around event sourcing principles. About the Role: As the Lead Engineer, you’ll be hands-on while also guiding … play a pivotal role in the design and delivery of scalable, resilient applications leveraging modern cloud technologies and distributed architectures. Key Responsibilities: Lead the design, development, and deployment of Java and C# services. Architect event-driven systems with a strong focus on event sourcing and CQRS. Implement scalable solutions using cloud platforms (AWS, Azure, or GCP). Collaborate closely with … Mentor junior engineers and promote best practices in engineering and DevOps. Required Skills: Proven experience as a Lead Engineer in enterprise-level systems. Strong hands-on development experience in Java and C#/.NET. Deep understanding of event sourcing, CQRS, and distributed system patterns. Experience with cloud-native architectures (preferably Azure but AWS & GCP also fine). Solid knowledge of More ❯

Lead Java/C# Engineer - Contract outside IR35 A leading financial services firm based in London is seeking a Lead Java/C# Engineer on a contract basis to drive forward the delivery of a high-performance, cloud-native platform built around event sourcing principles. About the Role: As the Lead Engineer, you’ll be hands-on while also guiding … play a pivotal role in the design and delivery of scalable, resilient applications leveraging modern cloud technologies and distributed architectures. Key Responsibilities: Lead the design, development, and deployment of Java and C# services. Architect event-driven systems with a strong focus on event sourcing and CQRS. Implement scalable solutions using cloud platforms (AWS, Azure, or GCP). Collaborate closely with … Mentor junior engineers and promote best practices in engineering and DevOps. Required Skills: Proven experience as a Lead Engineer in enterprise-level systems. Strong hands-on development experience in Java and C#/.NET. Deep understanding of event sourcing, CQRS, and distributed system patterns. Experience with cloud-native architectures (preferably Azure but AWS & GCP also fine). Solid knowledge of More ❯

ServiceNow Technical Lead - ServiceNow/Java/Python/C#/AWS - Insurance - London, City Our client, a leading specialty insurer based in the City of London, require a ServiceNow Technical Lead (AVP level) to join their team to drive the design, development and implementation of cutting-edge technology solutions to support their dynamic business. ESSENTIAL SKILLS & EXPERIENCE: 8+years experience … modules like incident, request, change, maintenance window, SLAs, and email notifications; Knowledge of Scripting business rules, UI Policies, Client Scripts, ACLs, Workflow Activities, and automation; Expertise in programming languages (Java, Python, C#) and frameworks (.NET, React, Angular); Strong understanding of cloud platforms (AWS, Azure) and microservices architecture; In-depth knowledge of IT governance, cybersecurity, and compliance standards; Hands-on experience … services is a preferred; and Bachelor's degree in Computer Science, Information Technology, or a related field (Master's degree preferred). Key skills: ServiceNow, ITSM, SecOps, DevOps, Agile, Java, Python, C#, AWS, Azure, Insurance, Technical Lead, Senior Developer, Technical Team Leader, AVP, London. More ❯

Backend Developer/Software Engineer (Java 17 Kotlin AWS) London/WFH to £85k Are you a technologist Backend Developer 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 silver and gold. … 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 … You are degree educated, having achieved a 2.1 or above gained in Computer Science (or similar STEM discipline) from a top tier university (e.g. Russel Group) 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 ❯

Avanti Recruitment is currently working with a global financial award-winning UK-based FinTech trading company who are currently looking to hire a Mid-Level Java Developers due to growth within the company. The office is in South London with good transport links, you will be required in the office 3 days per week. On a day-to-day basis … you will find yourself working across the full software development life cycle including design/architecture. You will be involved in developing and maintaining Java-based applications, APIs, and backend services. You will be involved modernising legacy systems into a newer microservices architecture as well as system enhancements, maintenance, and integration. You will take ownership of individual elements of development … development team as well as the trading colleagues and other developers on a daily basis to ensure you are delivering excellent service to the companies clients. Experience needed: Strong Java experience Solid understanding of OOP Experienced with Spring or Springboot frameworks REST APIs design and integration Familiarity with SQL and relational databases (MySQL/PostgreSQL) Agile Development Understanding and usage More ❯

Avanti Recruitment is currently working with a global financial award-winning UK-based FinTech trading company who are currently looking to hire a Mid-Level Java Developers due to growth within the company. The office is in South London with good transport links, you will be required in the office 3 days per week. On a day-to-day basis … you will find yourself working across the full software development life cycle including design/architecture. You will be involved in developing and maintaining Java-based applications, APIs, and backend services. You will be involved modernising legacy systems into a newer microservices architecture as well as system enhancements, maintenance, and integration. You will take ownership of individual elements of development … development team as well as the trading colleagues and other developers on a daily basis to ensure you are delivering excellent service to the companies clients. Experience needed: Strong Java experience Solid understanding of OOP Experienced with Spring or Springboot frameworks REST APIs design and integration Familiarity with SQL and relational databases (MySQL/PostgreSQL) Agile Development Understanding and usage More ❯

Social network you want to login/join with: Senior Software Engineer – Java Backend, london (city of london) col-narrow-left Client: TechHeads Location: london (city of london), United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 16.06.2025 Expiry Date: 31.07.2025 col-wide Job Description: London (5 days onsite, with some ad … hoc flexibility) TechHeads is currently seeking a Senior Software Engineer with strong Java backend experience, DevOps awareness, and proven technical leadership capabilities to join our Client’s London team. This is a high-impact role involving the design, development, and deployment of backend services that power our client’s security platform. You’ll work on systems at significant scale, leading … both engineering efforts and mentoring team members, while collaborating with globally distributed teams in the US, Ireland and India. Responsibilities: Design, develop, and maintain Java-based backend services using Spring Boot , REST/GraphQL , Kafka , PostgreSQL , and RabbitMQ . Contribute to infrastructure modernisation efforts, working closely with DevOps teams on Kubernetes , CI/CD pipelines , and legacy system migrations. Innovate More ❯

working with our financial services client on modernising their trading platform using React, Microservices, AWS technical stack while maintaining the current trading platform. Hence the need for a senior Java developer who has worked on applications that are built using AWS SaaS/PaaS platforms following Microservices architecture. This is an opportunity for an enthusiastic software engineer to join the … new functionality and maintain the client’s trading platform. Initiatives include product enhancements and new workflows for trading, and server-side programming and messaging. Perform the above duties utilizing Java, AWS, PostgreSQL, Spring Boot, Gradle, Redis. Improve the scale and performance of the growing system. Coordinate with business analysts and quality assurance daily. Present technical designs of work performed to … and scalability testing to support high throughput, moderate latency, high availability systems. Experience including analysis, design, coding and implementation of large-scale custom-built object-oriented applications. Excellent Core Java skills, Non-relational databases. Experience with a container-based event-driven microservices architecture using ECS, Spring Boot, and REST API. Good to have AWS services – ElastiCache, Kafka, Kinesis, Lambdas, IAM More ❯

Senior Java Analyst Developer/Technical Consultant £120,000 Plus Bens Quant Capital is urgently looking for a Java Analyst Developer/Technical Consultant to join our high profile client. Our client is a global trading platform software business. Its products are used globally by most asset managers and pension funds. They are well known in the fintech space and … required). Technical Consultants/Analyst Developers must have: 8+ years’ full-stack experience as Senior Developer around digital applications, software engineering, microservices and cloud. This could include Core Java, Spring Boot, Hibernate/JPA and UI using React, Ember, JavaScript or HTML. FIX Experience Cloud experience with containerization (Docker, Kubernetes), Database (Relational and NoSQL), Messaging (RabbitMQ), Repository (BitBucket), or More ❯

Senior Java Analyst Developer/Technical Consultant £120,000 Plus Bens Quant Capital is urgently looking for a Java Analyst Developer/Technical Consultant to join our high profile client. Our client is a global trading platform software business. Its products are used globally by most asset managers and pension funds. They are well known in the fintech space and … required). Technical Consultants/Analyst Developers must have: 8+ years’ full-stack experience as Senior Developer around digital applications, software engineering, microservices and cloud. This could include Core Java, Spring Boot, Hibernate/JPA and UI using React, Ember, JavaScript or HTML. FIX Experience Cloud experience with containerization (Docker, Kubernetes), Database (Relational and NoSQL), Messaging (RabbitMQ), Repository (BitBucket), or More ❯

Join to apply for the Java Developer role at ZILO Join to apply for the Java Developer role at ZILO About Step forward into the future of technology with ZILO. About Step forward into the future of technology with ZILO. We’re here to redefine what’s possible in technology. While we’re trusted by the global Transfer Agency sector … maintaining and enhancing the reliability, performance, and scalability of our platform. You will be responsible for addressing defect fixes, implementing small changes, and contributing to ongoing enhancements of our Java-based microservices stack. Key Responsibilities Collaborate with cross-functional teams to identify, diagnose, and resolve defects in our platform. Implement small changes and enhancements to improve system functionality and performance. … Contribute to the design, development, and deployment of microservices in a Java environment. Monitor system performance and reliability, proactively addressing potential issues. Develop and maintain automation tools to streamline operational processes. Participate in on-call rotations to ensure 24/7 system availability and rapid incident response. Document system architecture, processes, and procedures to ensure knowledge sharing and continuity. Continuously More ❯

Social network you want to login/join with: Software Engineering II - Java/Kotlin, London col-narrow-left Client: Location: London, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: e215a6bd906b Job Views: 4 Posted: 25.06.2025 Expiry Date: 09.08.2025 col-wide Job Description: Be an integral part of an agile team that's … and shape their own path and a pragmatic and iterative approach to achieving our long-term goals. Required qualifications, capabilities, and skills Formal training or certification on Kotlin or Java concepts and proficient advanced experience (if Java, a willingness to learn Kotlin). Contribute to designing and building scalable and performant front-end solutions written in TypeScript using React. Experience … be nothing short of the best. Preferred qualifications, capabilities and skills Fluency across the full engineering stack, covering TypeScript, React (including common patterns in AG-Grid and Charting libraries), Java and Spring Boot. Experience designing and building solutions on at least one Cloud platform (AWS, GCP). Experience building and deploying on Kubernetes (or some other container orchestration platform). More ❯

Posted: 06.06.2025 Expiry Date: 21.07.2025 col-wide Job Description: London (5 days onsite, with some ad-hoc flexibility) TechHeads is currently seeking a Senior Software Engineer with strong Java backend experience, DevOps awareness, and proven technical leadership capabilities to join our Client’s London team. This is a high-impact role involving the design, development, and deployment of backend services … systems at significant scale, leading both engineering efforts and mentoring team members, while collaborating with globally distributed teams in the US, Ireland and India. Responsibilities: Design, develop, and maintain Java-based backend services using Spring Boot , REST/GraphQL , Kafka , PostgreSQL , and RabbitMQ . Contribute to infrastructure modernisation efforts, working closely with DevOps teams on Kubernetes , CI/CD pipelines … resilient APIs (REST/GraphQL) and optimise the full software development lifecycle through automation. Requirements: 7–10+ years of professional experience in software engineering, with a strong focus on Java backend development . Solid understanding of Spring Boot , Kafka , RabbitMQ , PostgreSQL , and modern API design patterns. Hands-on experience or familiarity with DevOps tools and concepts – e.g. Kubernetes , Git-based More ❯

Senior Java Developer - (Job Number: 00054708361) Pay Competitive Location London/England Employment type Full-Time Job Description Req#: 2058093 !*! Job Summary We're looking for a Backend engineer with JAVA AWS skills who will take a key role on our team. Our developer must have knowledge in all stages of software development. Required Skills Great communication skills Good understanding … or other similar distributed SCM systems Experience working with relational and non-relational databases Maintain code integrity and organization. Understanding and implementation of security and data protection Essential Skills: Java 11 and above, Spring Framework, MVC, JDBC, JPA, Docker, Kubernetes, Cloud API's. Java EE architecture, with a focus on Spring Framework, JPA, and JAX-RS web services Experience writing More ❯

Join to apply for the Principal Java Engineer role at Oodle Car Finance 2 days ago Be among the first 25 applicants Join to apply for the Principal Java Engineer role at Oodle Car Finance 25 days holiday (rising to 28 after 3 years' service) pro rated, plus bank holidays, to take time to recharge and do something you love. … member feels supported on their journey with us. Our Talent Development team is here to support your growth, providing opportunities for learning, development, and career progression. The Role Principal Java Engineer at Oodle Car Finance. As a Principal Java Engineer, you will be a technical leader and subject matter expert in Java-based software development. You will architect, design, and … implement scalable, high-performance systems while mentoring engineering teams and driving best practices. This role requires a deep understanding of Java, modern software architecture, and a passion for innovation and quality. What you'll be getting up to: Lead the design and development of complex Java applications and backend services Define and uphold coding standards, architecture, and engineering best practices More ❯

Join to apply for the Java Developer (SC Cleared) role at Amber Labs . The Company At Amber Labs, we are a cutting-edge UK and European technology consultancy that prioritises empowering autonomy, promoting experimentation, and facilitating rapid learning to provide exceptional value to our clients. Our company culture is centred around collaboration, where all colleagues, regardless of their role … shorten delivery times. Our team consists of highly-skilled cross-functional consultants, analysts, and support staff. Location: Remote Security Clearance: SC Clearance The Role We are seeking a talented Java Developer with Security Clearance who is passionate about back-end development and has some exposure to front-end technologies. Key Responsibilities Design, implement, and maintain back-end systems using Java … basic React applications to invoke and present back-end data. Take ownership of tasks, working both independently and as part of a collaborative team. Essential Skills & Experience Proficiency in Java and Spring Boot for back-end development. Experience with AWS services (RDS, ECR, EC2). Hands-on experience with Kubernetes and Helm for container orchestration. Familiarity with CI/CD More ❯

of an agile development team Migrate existing services to microservices, with the goal of reducing complexity at the design and architecture level Write unit and integration tests for your Java code Collaborate with testers in development of functional test cases Develop deployment systems for Java based systems Collaborate with product owners on user story generation and refinement Monitor and support … the operation of production systems Participate in knowledge sharing activities with colleagues Pair programming and peer reviews About you: Required Experience: Minimum 8 years of Java development experience in an Agile environment, building scalable applications and services Experience with RESTful services Passion for Test Driven Development CI/CD Attributes: Good communication Problem Solving Self-starter Team player What you … Full-time Job function Job function Engineering and Information Technology Industries Software Development Referrals increase your chances of interviewing at Global Relay by 2x Get notified about new Senior Java Software Engineer jobs in London, England, United Kingdom . London, England, United Kingdom 1 week ago Senior Java Developer – FX Technology London (VP) London, England, United Kingdom 1 week ago More ❯

We encourage you to apply if your qualifications and experience are a good fit for any of our openings. Your role: Joining the Connectors product line as a Senior Java Developer, you would work as a member of a small, highly focused team, responsible for delivering backend services for highly scalable and robust messaging, using leading edge technologies. This is … of an agile development team Migrate existing services to microservices, with the goal of reducing complexity at the design and architecture level Write unit and integration tests for your Java code Collaborate with testers in development of functional test cases Develop deployment systems for Java-based systems Collaborate with product owners on user story generation and refinement Monitor and support … the operation of production systems Participate in knowledge sharing activities with colleagues Pair programming and peer reviews About you: Required Experience: Minimum 8 years of Java development experience in an Agile environment, building scalable applications and services Experience with RESTful services Passion for Test Driven Development CI/CD Attributes: Good communication Problem Solving Self-starter Team player What you More ❯

to enjoy! Today, we continue to create and nurture an environment that offers a high level of trust in our people, along with ownership, opportunities, flexibility and creative freedom. Java Software Engineer Push Gaming is a dynamic and innovative game development studio specialising in creating top-quality, mobile-optimised online casino games. With a passion for gaming and a commitment … with cloud based technologies from AWS Work with other teams to develop interfaces for the RGS generally What you’ll bring to the role: 2+ years of experience with Java Languages Spring Boot 3.x Microservice implementation and troubleshooting Knowledge of AWS cloud computing technologies Familiarity with YAML service configuration (Helm/Kubernetes) Familiarity with Agile software development methodologies Experience with More ❯

Join to apply for the Java Technical Lead, VP role at Citi Continue with Google Continue with Google Join to apply for the Java Technical Lead, VP role at Citi We are looking for a Java Technical Lead with proven experience of building robust, high-performance, large scale Capital Markets applications. Team Background The Derivatives Credit Risk Technology Team is … rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behaviour, conduct and business practices, and escalating, managing and reporting control issues with transparency. Ideal background Core Java experience developing robust, scalable, and maintainable applications applying Object Oriented Design principles. Experience working in the Capital Markets domain. Good understanding of Derivatives and Risk management is as significant advantage. … Experience with Agile software development processes with a strong emphasis on test driven development. Understanding of Java internals such as class loading and memory management. Demonstrated capacity to build sophisticated tooling for development and production team use. Good to have Experience re-engineering large monolithic applications to microservices. Experience re-engineering complex franchise critical applications to new platforms. Experience in More ❯

guidance in deploying microservices as part of an agile team Migrate existing services to microservices, reducing complexity at the design and architecture level Write unit and integration tests for Java code Collaborate with testers on functional test case development Develop deployment systems for Java-based systems Collaborate with product owners on user story generation and refinement Monitor and support production … systems Participate in knowledge sharing activities with colleagues Engage in pair programming and peer reviews About you: Required Experience: Minimum 8 years of Java development experience in an Agile environment, building scalable applications and services Experience with RESTful services Passion for Test Driven Development Experience with CI/CD Attributes: Good communication skills Problem-solving abilities Self-starter attitude Team More ❯

Senior Software Engineer - Java - Engine by Starling Senior Software Engineer - Java - Engine by Starling Get AI-powered advice on this job and more exclusive features. At Engine by Starling, we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology. Engine is Starling … and we care more about aptitude and attitude than specific experience or qualifications. We are very open about how we deliver software. For the most part we code in Java, but you need not be an expert when you join us! We believe in clean coding, simple solutions, automated testing and continuous deployment. If you care enough to find elegant … main part of our Backend Tech Stack is listed below, we don't ask that you have experience in all of this, but if you do, that's great! Java, which makes up the majority of our backend codebase AWS & GCP - we're cloud-native Microservice based architecture Kubernetes (EKS) TeamCity for CI/CD (with multiple production releases per More ❯