1 to 25 of 373 Java Jobs in the Thames Valley

Senior Java Developer - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading Role Overview: I am seeking a Senior Java Developer to join a leading Investment Bank as part of their global front-office technology team. This is a hands-on position focused on working with a real-time, event-driven system that underpins our industry-leading platform. … components, ensuring the platform can scale to meet the growing demands of business event processing and data management. Key Responsibilities: Develop, implement, and maintain highly performant, secure, and scalable Java applications. Java Server Side Concurrent Programming with Spring Boot (Core Spring) Leverage Kafka or other message queue systems to handle asynchronous processing. Design, optimize, and maintain MongoDB (NoSQL) database schemas. … JUnit and other relevant frameworks. Take full ownership of feature development from design through to production deployment. Collaborate effectively with cross-functional teams, balancing independence and teamwork. Key Skills: Java Kotlin Concurrency Message-driven architectures - Kafka, MQ SQL Queries Unix/Linux scripting Multithreading This is a full time role offering a salary of up to £130k. You will be More ❯

Job Title: Java Developer Location: London (Hybrid – 3 days in office per week) Salary: Up to £80,000 per annum About the Company: Join a leading travel company renowned for delivering exceptional customer experiences and innovative digital solutions. As part of a forward-thinking technology team, you’ll contribute to shaping the future of travel by building scalable, high-performance … applications used by millions of customers worldwide. The Role: We are looking for a skilled Java Developer to join our London-based technology team. You will work on designing, developing, and maintaining enterprise-level applications that support our digital platforms and customer-facing services. Key Responsibilities: Design, develop, and maintain high-quality Java applications and microservices. Collaborate with cross-functional … Ensure code quality through unit testing, code reviews, and adherence to best practices. Troubleshoot, debug, and optimize applications for performance and scalability. Stay up-to-date with the latest Java technologies and industry trends. Required Skills & Experience: Strong experience in Java (Java 8+) development. Solid understanding of object-oriented programming and design patterns. Experience with Spring Framework (Spring Boot, Spring More ❯

best practices Collaborate with cross-functional teams to deliver project goals Stay current with emerging technologies and development methodologies Tech Stack & Tools Programming Languages: C++, C#, Python, JavaScript, TypeScript, Java Frameworks & Libraries: .NET, Node.js, React, Angular, Spring Boot, Django (depending on role) Cloud Platforms: AWS, Azure, GCP DevOps & CI/CD: Docker, Kubernetes, Git, Jenkins Agile methodologies and tools (e.g. More ❯

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

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

approaches to observability, SRE, and DevSecOps in production systems Act as a trusted point of contact for both internal and client-facing technical discussions Key Skills & Experience Proficiency in Java, Python, Go, JavaScript/TypeScript Strong experience with frameworks and tools including Spring Boot, React, Node.js, Docker, Kubernetes, and Terraform Deep understanding of modern architecture patterns such as microservices, RESTful More ❯

dispersed engineering teams (20-30+ heads) in global banks. Experience with Microsoft-based legacy systems (.NET, C#, SQL, Azure, on-prem/cloud) and emerging technologies including Linux, Java, microservices, and containerisation (Docker, Kubernetes, Helm, Camunda). Proficiency in CI/CD pipelines (Jenkins), version control (GitHub/GitLab/BitBucket), backend/frontend frameworks (Spring Boot, Angular, React More ❯

layer. Ensure compliance with security policies and participate in audits and vulnerability remediation. Maintain accurate documentation, including topology diagrams, runbooks, and configuration baselines. Support proprietary messaging APIs using C++, Java, Python, and C# programming languages. Provide support for proprietary cache and gateways that integrate applications with the messaging service. Required Skills & Qualifications: 3+ years of experience administering Solace PubSub+ messaging More ❯

What we’re looking for... Essential skills and experience: 5+ years experience of developing complex applications using an OO language (ideally Python, but experience in C++/C#/Java/etc would also be considered) Experience working on mission-critical applications, following a robust SDLC Excellent communication and problem-solving skills; and a strong aptitude for learning Experience and More ❯

and resolve production issues, ensuring minimal disruption to trading activities. Contribute to continuous improvement initiatives and technical innovation within the team. Key Skills & Experience: Required: Strong programming skills in Java , C# , or Python . Experience with FX trading systems , ideally in investment banking or financial services. Solid understanding of trade lifecycle , pricing , and risk management . Familiarity with FIX protocol More ❯

engineers, architects, and DevOps teams to deliver robust streaming solutions. Required: • Hands-on experience with Apache Kafka (any distribution: open-source, Confluent, Cloudera, AWS MSK, etc.) • Strong proficiency in Java, Python, or Scala • Solid understanding of event-driven architecture and data streaming patterns • Experience deploying Kafka on cloud platforms such as AWS, GCP, or Azure • Familiarity with Docker, Kubernetes, and More ❯

incident. What You’ll Do Lead end-to-end development and deployment of mission-critical backend systems, targeting 99.999% availability. Architect and deliver high-throughput, cloud-native services using Java/Spring Boot , Node.js , and Python across AWS and Kubernetes environments. Implement event-driven architectures using Kafka, RabbitMQ, and AWS services (SNS, SQS, Lambda, DynamoDB). Drive automation across CI More ❯

ARE NOT DOING SPONSORSHIP FOR THIS ROLE. A unique development opportunity to work on a Public Sector Based Large Scale programme with an innovative market leader as a Backend Java Developer. We require a Java developer with strong back end Java experience to develop new features for our portfolio of Government Clients. You will join a team that prides itself … on collaboration and engineering the best possible Java code. Must Have Skills: Experience with Java 8, Java 11, Spring Framework, Spring Boot Experience of using JEE standards such as CDI, JPA and JMS Experience of building web applications Practical Microservices development experience on cloud platforms (AWS/Azure) and understanding of microservices design patterns Experience of Domain Driven Design Practical More ❯

ARE NOT DOING SPONSORSHIP FOR THIS ROLE. A unique development opportunity to work on a Public Sector Based Large Scale programme with an innovative market leader as a Backend Java Developer. We require a Java developer with strong back end Java experience to develop new features for our portfolio of Government Clients. You will join a team that prides itself … on collaboration and engineering the best possible Java code. Must Have Skills: Experience with Java 8, Java 11, Spring Framework, Spring Boot Experience of using JEE standards such as CDI, JPA and JMS Experience of building web applications Practical Microservices development experience on cloud platforms (AWS/Azure) and understanding of microservices design patterns Experience of Domain Driven Design Practical More ❯

Senior Automation Test Engineer (Selenium Java & Python) London, UK (Hybrid work model) We are seeking a highly skilled and proactive Senior Quality Analyst with strong expertise in web and mobile application testing, automation frameworks, and API testing. The ideal candidate will have hands-on experience with Selenium (Python), Postman, SQL, and a solid understanding of quality assurance best practices. Exposure More ❯

a genuine technologist’s role — building critical software that combines engineering precision, scalability, and innovation. What We’re Looking For Very strong expertise in one of C#, Python or Java , ideally with working knowledge of another. Rust very desirable Proven experience designing and developing complex, distributed, real-time systems . Deep understanding of software architecture, concurrency, performance optimisation , and system More ❯

developing software for mission-critical applications in the space domain or adjacent industries.* 5+ years of full stack development experience.* 5+ years of object-oriented programming experience (preferably in Java, Python, or C++).* 5+ years of experience developing frontend applications with modern frameworks (preferably React). Highly Desirable skills * strong demonstrable experience in one or more of the following More ❯

and professional growth, helping you build confidence, independence and accountability. Key Skills and Attributes Strong interest in software development, automation and cloud technologies Understanding of programming languages such as Java, C++, Python or JavaScript Awareness of databases (SQL or NoSQL) and data structures Familiarity with version control and CI/CD processes such as Git, Jenkins or Azure DevOps Analytical More ❯

developing software for mission-critical applications in the space domain or adjacent industries. * 5+ years of full stack development experience. * 5+ years of object-oriented programming experience (preferably in Java, Python, or C++). * 5+ years of experience developing frontend applications with modern frameworks (preferably React). Highly Desirable skills * strong demonstrable experience in one or more of the following More ❯

Azure AI Services, Azure OpenAI, AI Search, Data Lake Storage, Data Factory, Databricks, HDInsight, Azure Synapse Analytics, Azure SQL Database, Functions, and Azure DevOps. Strong programming skills in Python, Java, Scala, R, or .NET/C# . Proficiency in SQL and database design . Solid understanding of data models, data mining, analytics, and segmentation techniques . Experience with ETL pipelines More ❯

in designing resilient, scalable, and cost-conscious architectures in coordination with solutions architects. Demonstrated leadership in mentoring or upskilling other engineers. Advanced scripting and development experience (e.g., Python, Bash, Java, Golang, or JavaScript). Proficiency with infrastructure-as-code tools such as Terraform, Ansible, or Pulumi. Hands-on experience with UNIX/Linux systems and modern DevOps toolchains. Working knowledge More ❯

Java Developer - Agile - Banking We are seeking an experienced Java Developer with solid banking and financial-services experience to join a growing, fast-moving engineering team. The role suits a technically strong developer who enjoys building new solutions, solving complex integration challenges, and taking ownership across the full development lifecycle. Key Responsibilities Collaborate with senior Java engineers and Agile transformation … Bitbucket) for workflow tracking and KPI monitoring. Build trusted relationships with stakeholders across business, QA, infrastructure, and security teams. About You Proven experience in server-side software development with Java 11+ and practical knowledge of SQL (DB2, SQL Server, or Postgres). Strong understanding of design patterns, microservices architecture, RESTful APIs . Some capability in front-end development (JavaScript, React … ELK) stack , Docker/Kubernetes , or test automation tools such as Cucumber/Selenium . Exposure to client-side JavaScript frameworks and UI/UX collaboration is advantageous. Keywords: Java Developer, Software Engineer, Java 11+, Agile, Banking, Financial Services, Microservices, RESTful APIs, CI/CD, Scrum, Kanban, BDD, Gherkin, React, Node.js, JIRA, Confluence, Bitbucket, Visio, PowerPoint, Docker, Kubernetes, Selenium, Cucumber. More ❯

Position: Full Stack Java Developer Employment Type: Contract Start: ASAP (November/December 2025) Duration: 6 Months (with expected extension) Location: London, UK (Hybrid) Language(s): English Focus on SAP is a specialist SAP and ERP Recruitment organisation offering both permanent and contract staffing solutions on a global scale. Client – Partnered with a global leader in digital transformation and IT … people and communities they serve. For you, this means working on challenging projects that demand innovation, collaboration, and thought leadership . Role – We are seeking an experienced Full Stack Java Developer to join a dynamic financial services project. You will play a key role in designing, building, and maintaining both the front-end and back-end components of high-performing … web applications using Java, Spring Boot, and modern front-end frameworks. This is a great opportunity to work on large-scale, cloud-hosted systems that require performance, scalability, and innovation. Key Responsibilities: Front-End Development Develop responsive, interactive user interfaces using HTML5, CSS3, and JavaScript. Build modern UI components using React, Angular, or Vue.js. Back-End Development Develop and maintain More ❯

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

Azure experience is also very relevant. Proven track record building CI/CD pipelines and infrastructure-as-code. Experience developing and supporting production-grade applications in languages such as Java, Python or C#. Technical leadership in a specialist domain (e.g., containers, data platforms, cloud networking). Experience working in regulated environments with a focus on security and compliance. Desirable Experience More ❯