101 to 125 of 167 Java Jobs in Oxfordshire

Deliverables SDET Testing (Software Development Engineer in Test) Ideally Developer-tester hybrid. Write testing frameworks and also contribute to production code. Strong coding background (Java, Python, C#, etc.). Build integration and end-to-end automation pipelines. Performance/Load Testing Simulates real-world load and stress on systems. Ensures More ❯

ability to translate customer needs into actionable technical requirements Experience managing multiple concurrent implementation projects with enterprise customers Knowledge of APIs & software development (Python, Java), data pipelines, and enterprise integration architectures Proven success in enterprise software implementations, balancing technical execution with customer business needs Experience leading technical enablement, training, or More ❯

Capital, Apexon now has a global presence of 15 offices (and 10 delivery centers) across four continents. Job Title: Software Developer in Test (SDET) - Java Location: United Kingdom About Us We are a leader in the fintech space, driven by innovation and committed to delivering a seamless customer journey that … Selenium, GitLab . Skilled in automating API tests and leveraging APIs for test setup and teardown. Strong expertise in creating test automation code using Java . Solid experience with various types of testing (Component, Integration, End-to-End, Functional, Non-Functional). Comprehensive understanding of testing principles, processes, methodologies, and More ❯

Job Title: Software Engineer - Full stack Java & React Location: Glasgow Short Description Design and deliver market-leading technology products in a secure and scalable way as a seasoned member of an agile team. Job Overview This is a unique opportunity to accelerate your career while contributing to impactful technology solutions … as cloud, AI/ML, or mobile platforms Frontend experience with React or Angular, TypeScript, CSS, JavaScript, and Micro Frontend frameworks Backend expertise in Java, Spring Framework, Kafka, and NoSQL databases (e.g., MongoDB, Cassandra) Preferred Qualifications Exposure to cloud technologies and services Experience designing and developing microservices-based architecture Commitment More ❯

Job Opportunity: Freelance Java Developer (Outside IR35) £450–£550/day | Remote (UK-Based) | Occasional travel to Hammersmith or Farnborough We’re looking for an experienced Freelance Java Developer to join a long-term programme focused on building scalable, cloud-native platforms within the Financial Services Payments sector. This is … ideal for someone who takes ownership, thinks like an engineer, and enjoys working in a collaborative, delivery-focused team. What You'll Bring Strong Java development experience (Spring Boot, Microservices) Proficiency with AWS services (Java Spark, EMR, Lambda, native AWS databases) Experience with Kubernetes and EKS Strong understanding of cloud More ❯

work. We are looking for a Full-Stack Engineer with expertise in React.js, Next.js, and TypeScript who can also contribute to backend development using Java (Spring Boot) or Python . In this role, you will be responsible for building and optimizing frontend applications while integrating and managing backend services in … brokers like Kafka . Experience integrating with AWS services such as Lambda , S3 , DynamoDB , MSK , and API Gateway . Experience with backend development using Java (Spring Boot) or Python is preferred. Innovation: Interest in new technology and ability to work with early-stage ideas. Nice-to-have: Experience with frameworks More ❯

Solid knowledge of asset classes, including Equities, Options, Futures, or Fixed Income. Excellent documentation and requirement elicitation skills. Hands-on programming experience (ideally Python, Java or KDB+/q). Understanding of FIX protocol. This is a rare opportunity to contribute to mission-critical technology projects in a collaborative, high More ❯

that are robust and efficient. (Looking at going down Snowflake or BigQuery) Utilize your expertise in backend languages; the tech stack is flexible, including Java, Python, .NET, Ruby, and more. Implement strong coding principles, including CI/CD, TDD, and maintain high-quality code standards. Bring a deep passion for More ❯

degree in life sciences, engineering, or computational science Proven success in deploying AI solutions at scale in complex, regulated industries Strong coding ability (Python, Java, Scala), and familiarity with GenAI tools and cloud platforms Business-savvy communicator who can influence senior stakeholders and lead cross-functional initiatives Next Steps This More ❯

degree in life sciences, engineering, or computational science Proven success in deploying AI solutions at scale in complex, regulated industries Strong coding ability (Python, Java, Scala), and familiarity with GenAI tools and cloud platforms Business-savvy communicator who can influence senior stakeholders and lead cross-functional initiatives Next Steps This More ❯

environment - SQL - Data Protection/GDPR - expert English language - GIT/GITHUB - adaptable to different programming languages if required; perhaps especially Android Studio/Java We are open to discussions about the hours that would suit you, as well as work location (e.g. remote working and/or from our More ❯

Engineering, Computer Systems Engineering, Electronic Engineering or similar Coding experience through degree course in at least one high level language (e.g. C, VB, C#, Java or similar) Understanding of Object Oriented Programming techniques and concepts Understanding or interest in operating systems, virtualisation and networking Willingness to travel and work away More ❯

Greetings from Ubique Systems!!! We are looking for a Java Developer for one of our customer who has an expertise in:- • Exposure to Cloud technologies • Proficient in coding in Java, Python and Spark • Hands-on experience working with AWS stack/services • Hands-on experience with Java and Spring • Working More ❯

Java Developer (Contract) – Fintech Scale-Up | Outside IR35 Location: London (Hybrid – 3 days in office) Duration: 6 months Rate: £400–£500/day (Outside IR35) Tech Stack: Java, PostgreSQL, AWS, React About the Company We’re supporting a fast-growing Fintech scale-up building a next-generation digital cash savings … people and institutions make the most of their money by simplifying access to high-performing savings products. The Role We’re looking for a Java Developer to join their growing platform team on a 6-month Outside IR35 contract . This is a backend-focused role where you'll contribute … environment, helping them scale to meet growing demand from financial institutions and end-users alike. Key Responsibilities Develop and maintain scalable backend services using Java Architect and implement service-oriented and event-driven systems Optimise and manage PostgreSQL databases Contribute to light React frontend work when needed Build and deploy More ❯

Insight Global is seeking a mid-level Java Developer for one of their premier financial services clients in Birmingham, UK. As a Java Developer on this team, you will play a crucial role in a strategic project involving the evaluation, migration, and potential decommissioning of approximately 60 existing services inherited … in light production support (such as reviewing and investigating logs), and coordinate with both technical and business teams. Must Haves: Hands-on experience in Java development Strong experience with: Reading/writing from Kafka in Java Microservices architecture using Spring Framework Familiarity with log investigation and production support tasks Ability … and driving deliverables to completion Plusses: MongoDB (especially integrating services with MongoDB) Experience with cloud platforms, especially AWS Experience interacting with AWS services within Java applications Background or exposure to service demise and platform migration strategies More ❯

Shape architecture and ship new features - Build something that genuinely helps people What we’re looking for: - Strong experience in Swift and Kotlin/Java - Must have built apps from scratch - Must be happy working independantly - End-to-end app launch experience - Solid UI/UX instincts - UK-based (remote More ❯

Tech Stack Over 10 years’ experience in Software Architecture with enterprise experience Architecture of Development experience which encompasses SaaS or API based platforms .NET, Java or OOP background HTML, CSS, JavaScript Database design, caching, systems integration Benefits Package Remote Annual bonus £500 home office set up £60 pcm WFH costs More ❯

a relevant field. 10+ years in application and enterprise architecture roles. Proven experience designing SaaS-based systems and external-facing APIs. Proficiency in .NET, Java, or similar languages, with a broad technical skillset spanning frontend and backend development. Strong understanding of systems integration, middleware, caching, databases, and web performance optimisation. More ❯

Development Engineer in Test who is passionate about quality, reliability, and secure software development. In this role, you’ll be responsible for testing a Java-based codebase that powers our secure coding labs and training platform. Your mission is to ensure our software is reliable, robust, and meets the highest … standards of quality. Key Responsibilities Design, develop, and maintain test plans, test cases, and automated test scripts for Java-based systems, with a focus on both functionality and security. Perform functional, regression, integration, and system-level testing. Validate business logic, user workflows, and secure handling of data across our platform. … Create and manage automated test suites using tools compatible with Java (e.g., JUnit, TestNG, Selenium, REST Assured). Validate REST APIs, backend services, browser-based interfaces, database interactions, and multi-threaded service components using manual and automated approaches. Participate in regression and exploratory testing to uncover edge-case issues. Participate More ❯

to work for a GreenTech company in zero tech debt that is committed to being the industry's top platform for a sustainable future? Java Software Engineer - GreenTech Start up! £60-90K + benefits Fully remote from anywhere in the UK We are partnered with an ‘energy-as-a … service’ platform, that was created to help both customers and suppliers advance the energy revolution. They are urgently looking for Java Software Engineers to join their rapidly growing team. Innovation is highly important to this company; they are looking for Java Software Engineers who wish to dominate the market and … As a technology company, they only complete GREENFIELD work, building and developing all frameworks, databases and tools from scratch. Tech stack required as a Java Software Engineer: · Core Java · C · Experience with APIs · Microservices · Multithreading, concurrency & high throughput · AWS · Kubernetes Benefits you will enjoy as a Java Software Engineer: · Pension More ❯

Start Date: ASAP Duration: 12 months Salary: £600-£620 per day (Outside IR35) Job Description We are seeking a highly skilled Java Developer with extensive experience in modern development frameworks and a strong background in software engineering. Key Responsibilities Design, develop, and maintain high-performance applications using Java and Spring … Stay up-to-date with industry trends and advancements, particularly in AI and developer productivity. Required Skills and Experience 6+ years of experience with Java and Spring Boot. 1+ years of experience with Python Strong expertise in MySQL/PostgreSQL. Familiarity with modern development frameworks. Proven experience working as a More ❯

leading global consultancy, is partnering with a prestigious end client based in Bournemouth. We are excited to offer a fantastic opportunity for a talented Java Technical Lead to join a fast-paced project within the insurance technology space. In this role you’ll guide a small Agile delivery team through … and review detailed design documentation alongside architects and infrastructure specialists Collaborate with business stakeholders to refine requirements, user stories & acceptance criteria Write hands‐on Java code (approx. 50% of your time) using Spring Framework and modern tooling Define and enforce best practices, design patterns, and coding standards across the team … Track and report progress to Scrum Masters and Project Managers, ensuring on‐time delivery What You’ll Bring 5+ years’ hands‐on experience with Java 11+ and Spring Framework (Spring Boot, MVC, Security/OAuth2) Proven expertise in building & consuming SOAP and RESTful web services Familiarity with middleware integration patterns More ❯

Job Title: Azure Data Engineer - Java Development - Heathrow Location: Heathrow - Once a month Salary/Rate: Up to £586 a day Inside IR35 Start Date: June Job Type: 6 Month Contract (with scope to extend) Company Introduction We are looking for an Azure Data Engineer with strong Java coding experience … and experience working with Java management tools for our client in the IT Services and IT Consulting industry. Data Migration & Databricks experience is also essential for this role. You will perform complex research, design, and software development assignments within a specific software functional area or product line. This is an … experience on Cloud Technologies – Azure/AWS. Ability to work with complex data models. Proficiency in development languages including but not limited to: Python, Java, C/C++, HTML, XML, SQL, Windows, UNIX, and JSON. Familiarity of industry best practices — code coverage. Experience working in software development methodologies (e.g., Agile More ❯

Urgent Requirement – Java Lead/Architect Contract/Remote We’re looking for a hands-on Java Lead/Architect to drive a high-impact data integration and transformation project. You’ll lead two developers, set technical direction, and roll your sleeves up with Java and XML-heavy workstreams. Key … Tech: Java 8+, Spring Boot, Camel XML (XSD, XPath, XSLT, Schematron) Canonical data modelling & semantic structures AWS deployment of transformation pipelines Tools like Altova, XStream, MaterialUI Bonus if you know: Finvoice, Peppol, UBL, TEAPPS, B2B/EDI exchange formats You’ll need to be: Equally comfortable leading and coding Strong More ❯

Mid level Java Developer - 9 month contract - Hybrid - start ASAP This role will involve software development across multiple microservices. Need experience in: Strong knowledge and extensive experience of modern Java technologies, frameworks, and design principles. specifications. Test-Driven Development (TDD) and Behaviour Driven Development (BDD) practices and techniques. Will be … writing unit tests for java services that meet a set criteria of coverage that will be automatically tested as part of our CI/CD process. Knowledge and experience of APIs (Open API/Swagger), RESTful services and Microservice Architectures. Strong knowledge and extensive experience of developing on cloud-based More ❯