Senior Software Engineer – Java Backend London (5 days onsite, with some ad-hoc flexibility) £85,000 – £120,000 (Permanent) 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 … 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 ❯
Manchester, England, United Kingdom Hybrid / WFH Options
System Loco
industries. We specialize in creating intelligent, scalable solutions to connect devices, analyse data, and enhance business performance. With an exciting growth trajectory, we are looking for a talented Senior Java Developer to join our team and help shape the future of IoT solutions. Role As part of the server development team, you’ll be playing a key role in designing … Involvement in monitoring and supporting production systems Working with product owners to help define future ambitions Performing code reviews, providing constructive feedback, and mentoring other developers Highly skilled with Java & SpringBoot Proven software delivery experience on numerous API/Micro-services projects Knowledge of NoSQL, ideally MongoDB Ability to robustly test and validate software through unit testing, integration testing and … ups, and retrospectives Nice to haves: Experience with Containerisation and/or knowledge of Docker AWS experience, specifically Lambda, SNS, SQS, API Gateway CI/CD with GitHub Actions Java 21, using Spring Boot & Grizzly Seniority level Mid-Senior level Employment type Full-time Job function Engineering and Information Technology #J-18808-Ljbffr More ❯
Social network you want to login/join with: Senior Software Engineer – Java Backend, slough col-narrow-left Client: TechHeads Location: slough, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 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 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 across the stack, taking ownership of 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 ❯
City of London, London, United Kingdom Hybrid / WFH Options
Quant Capital
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 ❯
London, England, United Kingdom Hybrid / WFH Options
ZILO™
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 ❯
React Java Full Stack Developer (Manchester, UK) Hybrid: 2-3 days work from office Get The Future You Want! Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll … us and help the world’s leading organizations unlock the value of technology and build a more sustainable, more inclusive world. Your Role We are seeking a talented React Java FullStack Developer to join our team at Capgemini Financial Services. In this role, you will be responsible for developing and maintaining both front-end and back-end components of our … libraries for future use Your Profile Strong front-end technology skills using HTML, CSS, JavaScript, React JS, Redux, Node, test framework (e.g., Jest) Strong experience with back-end technology: Java, SpringBoot, JPA, Hibernate, Junit, Mockito, microservices Experience with SQL (MS SQL preferred), cloud technology and messaging tools. Experience with standard DevOps tools: Jira, Bitbucket, Nexus, Confluence, SonarQube, Veracode, GitLab, Maven More ❯
of the software development lifecycle 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 More ❯
of the software development lifecycle 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 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 ❯
Leeds, Yorkshire, United Kingdom Hybrid / WFH Options
William Hill PLC
Our team is building the next generation Sports Betting platform that optimizes flexibility, performance, responsiveness and resiliency. The technologies we like to use include Java, SpringBoot, Kafka, Cassandra, Postgres, Kubernetes, AWS, Postgres, etc. We are looking for an experienced Java Developer to work directly with the business. Working within an agile team, you will deliver high-quality, customer-focused software … teams around you. Taking responsibility for product delivery and your contributions to it. Actively participating in the communities of practice associated with your role. Who we are looking for Java Developers with a positive, collaborative attitude and commercial development experience in an Agile/DevOps environment, familiar with the full SDLC, contract-first development, and CI/CD. Technical understanding … of Java and the Java ecosystem, with familiarity in SpringBoot, Kafka, Postgres, Cassandra, Docker, GitLab, and GitLab CI. Desirable knowledge of tools such as New Relic, Splunk, AWS Lambdas, Kubernetes, ISTIO, Terraform, and OpenAPI, with experience in monitoring, logging, and infrastructure as code. Ideal for those who enjoy coding, continuous learning, and working in a collaborative, mixed-discipline Agile team More ❯
Java Developer (SC Cleared) Location: Remote Security Clearance: SC Clearance 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, work together to minimise … risk and shorten delivery times. Our team consists of highly-skilled cross-functional consultants, analysts, and support staff. 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 and Spring Boot. Work … 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 ❯
Calling all tech enthusiasts! Are you a problem-solving, curious, and strategic Java Developer? Join us at Sidetrade, the leading global SaaS provider recognized by Gartner. ( ) Indulge your passion for high-availability software and performance enhancement as part of our dynamic team. Embrace the challenge, embrace the excitement - become a Senior Software Engineer and thrive! Shape the future of AI … software solutions to drive customer transformation. We provide comprehensive training, coaching, resources, and mentorship to support growth and success. What you will love at Sidetrade We seek a passionate Java Platform Engineer with a multifaceted skill set. Dive into AI and Data Science within our innovative environment. Collaborate with like-minded professionals, embrace the latest tools and technologies, and grow … Enhance your skills and advance your development journey! Key skills and experience: Experience with automated testing frameworks like Playwright Experience with profiling tools and load testing Commercial experience with Java or JVM languages (Groovy, Scala, Kotlin ) API Engineering expertise Relational database knowledge, e.g., PostgreSQL DevOps skills: CI/CD, Docker, Git Additional skills that are a plus: Understanding of Software More ❯
London, England, United Kingdom Hybrid / WFH Options
Global Relay
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 ❯
and skills Experience with object-oriented design and micro-service architectures and best practices Experience with Cloud Technologies e.g. Docker/Kubernetes/AWS/Terraform Experience with the Java ecosystem including Spring, Web Services, and Messaging Experience with NoSQL/Big Data Databases Experience with finance/derivative products Experience with Java 17+ and/or additional JVM languages More ❯
London, England, United Kingdom Hybrid / WFH Options
Global Relay
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 ❯
Calling all tech enthusiasts! Are you a problem-solving, curious, and strategic Java Developer? Join us at Sidetrade, the leading global SaaS provider recognized by Gartner. ( ) Indulge your passion for high-availability software and performance enhancement as part of our dynamic team. Embrace the challenge, embrace the excitement - become a Senior Software Engineer and thrive! Shape the future of AI … that drive customer process transformation. We provide comprehensive training, coaching, resources, and mentorship to support your growth and success. What you will love at Sidetrade We seek a passionate Java Platform Engineer with a multifaceted skill set. Dive into the exciting world of AI and Data Science within our innovative tech environment. Collaborate with like-minded professionals, utilizing the latest … the following key skills and experience: Experience with automated testing frameworks such as Playwright Experience with profiling tools and load testing Commercial experience with a core programming language like Java or JVM languages (Groovy, Scala, Kotlin ) Expertise in API Engineering Experience with relational databases like PostgreSQL DevOps: CI/CD, Docker, Git The following skills and technologies are a plus 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 ❯
London, England, United Kingdom Hybrid / WFH Options
Global Relay
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 ❯
Social network you want to login/join with: Java Developer (Must hold active SC), slough col-narrow-left Client: Amber Labs Location: slough, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 4 Posted: 26.06.2025 Expiry Date: 10.08.2025 col-wide Job Description: Java Developer (Must hold active SC) The Company: At Amber Labs … quality tools, deployment tooling You’ll provide technical support for the transition of applications into live service and support. Your skills and experience What you’ll bring: Experience of Java AWS Experience of Spring framework or equivalent. Knowledge of software design patterns and when to apply them Excellent knowledge of development processes. Experience of containerisation using Docker or Kubernetes Experience More ❯
London, England, United Kingdom Hybrid / WFH Options
Starling Bank
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 ❯
their roles You build effective work relationships giving and receiving constructive feedback and your colleagues at all levels and across all teams trust you Technologies We Use Go and Java are our primary Frontend Any browser applications are based on React CICD Code lives in GitHub Enterprise and flows to production through a CICD pipeline built on GitHub Actions Containers … into the London technology campus 3 days each week Our teams are distributed across the UK and the US Eastern and Central time zones Skills Mandatory Skills : Integration Architecture, Java, Application Architecture, SOA and Microservices Based Architecture, Cloud Architecture, Data Architecture, Angular, JavaScript, Microservices, React, SpringBoot #J-18808-Ljbffr More ❯
Java Developer (Must hold active SC) 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, work together to minimise risk and shorten delivery … quality tools, deployment tooling You’ll provide technical support for the transition of applications into live service and support. Your skills and experience What you’ll bring: Experience of Java AWS Experience of Spring framework or equivalent. Knowledge of software design patterns and when to apply them Excellent knowledge of development processes. Experience of containerisation using Docker or Kubernetes Experience More ❯