26 to 50 of 83 Java Jobs in Watford

Backend Java Developer Fully Remote Contract - 12 months + Are you a seasoned Java Backend Developer with a passion for building high-performance video streaming platforms? Do you have a deep understanding of Content Management Systems (CMS) and a knack for crafting scalable backend architectures? If so, we want to … hear from you! We’re looking for a Backend Java Developer to join our growing team working on cutting-edge video streaming solutions . You’ll play a key role in designing and implementing robust backend services with a strong focus on CMS integration and optimization. This is a high … impact position with a lot of autonomy and growth potential. What You’ll Do: Design, build, and maintain scalable backend services in Java Develop and optimize APIs for video streaming workflows and CMS integrations Collaborate with frontend developers, DevOps, and product teams to ensure seamless delivery Optimize performance for high More ❯

in engineering leadership, with at least 1 year at Director level * Track record managing 10+ engineers and scaling high-performing teams * Strong background in Java, C#, or other object-oriented languages * Solid understanding of Lean or Kanban software practices * Skilled communicator and coach, comfortable leading cross-functional delivery * Experience with More ❯

art deep learning models architecture design and deep learning training and optimization and model pruning Experience with LLM benchmarking Strong programming skills in Python, Java, C++, or a related language Strong skills in algorithm development to solve optimisation problems Familiarity with core tools for a typical ML-focused work environment More ❯

Lorien are currently engaged with a leading SaaS provider within their sector who are currently looking for a Senior Java Developer to join their team as they continue growth of their existing team. You will play a important role in designing, building, extending and support their SaaS platform. The platform … some technical leadership, mentor colleagues and actively contribute to improvement initiatives and making the most out of modern technologies and innovative solutions. Technical Skills: Java Spring Boot Kubernetes AWS - Lambda, EC2, S3, RDS, DynamoDB) Demonstratable knowledge of DevOps culture, processes, technical practices and tools (IaC - Terraform) Experience with React and More ❯

squads within the data team on project-based work. Develop and optimize data models, warehouse solutions, and ETL processes. Work with Scala, Spark, and Java to handle large-scale data processing. Contribute to manual Databricks-like data processing solutions. Requirements: Minimum of 4 years of experience with Scala, Spark, and More ❯

a range of issues. The platform is extremely popular, boasting more than 8 million users. The team has recently transitioned from legacy Rails and Java applications to a modern Laravel 11 stack, utilising PHP 8.2, Alpine.js, Vue, Inertia, Livewire, and Tailwind CSS. Their infrastructure leverages AWS, Aurora RDS, Redis, DynamoDB More ❯

/CD environment. Perform non-functional testing for UIs and APIs. What you'll bring: Proven experience testing in an agile environment. Proficiency in Java/Selenium, with experience in Playwright or Cypress preferred. A strong understanding of CI/CD approaches and tooling in AWS and Git. A proactive More ❯

module implementations ITIL methodologies Excellent communication skills & ability to manage stakeholders Competent with all aspects of development, design & build through projects Well versed with Java, HTML, CSS, Python REST/SOAP API's Experience with solution design is desirable ServiceNow certified CSA & CAD is highly desirable What they offer: Base More ❯

role you will have . Commercial experience working in AI/ML Strong programming skills with Python and other languages such as R or Java Strong cloud experience in an Azure environment (AWS or GCP also beneficial) Experience with Gen AI would be beneficial This is a home-based role More ❯

manipulation, with both structured and unstructured data. Advanced programming skills, particularly in Python and Perl; familiarity with shell scripting and object-oriented languages (e.g., Java, JavaScript). Deep understanding of relational databases, data modelling principles, and entity relationship design. Practical experience with network design platforms and GIS/CAD tools More ❯

of hands-on development experience with 5G SBA network functions (e.g., AMF, SMF, NRF, PCF, UDM) Strong programming skills in languages such as Go, Java, or C++ Proficient in building microservices and working with REST/gRPC APIs Experience in Docker and Kubernetes in deploying services over public or private More ❯

Key skills and experience (you must have worked on this in the current or last role): Mobile automation/SDET testing experience Appium Maven Java Rest Assured for API testing Be an advocate for shift left Able to review existing automation and suggest improvements to senior stakeholders Embed tests into More ❯

Skills: Previous experience within a retail software support role Strong experience with Microsoft technologies, MS Azure, AWS MQ, and SQL. Proficient in .Net, Python, Java, and scripting for automation. Solid background with AWS (Lambda, ECS, MQ) and monitoring tools. Understanding of PCI-DSS and SOX compliance standards. If you are More ❯

vulnerabilities (OWASP) Experience with SAST, DAST, and IAST tools and integrating them into CI/CD pipelines. Proficiency in writing and reviewing code (JavaScript, Java, Python) with an emphasis on secure patterns. Ability to work closely with engineers to drive adoption of security best practices across teams. If you're More ❯

teams Willingness to backtrack, seek multiple solutions, and experiment to validate approaches. A strong background in object-oriented programming in a language such as Java, C# or C++. Creative, Investigative, Innovative, Insightful, and able to make technical leaps, finding novel solutions. Find out more If you would like to have More ❯

Java Software Engineer (Must hold active SC) Location: Remote 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 … support for the transition of applications into live service and support. Your skills and experience Experience with some of the following would be desirable: Java (Spring Boot), software design patterns, DDD, CQRS, Event Sourcing Postgres, Liquibase for database versioning Containerisation with Docker CI/CD pipelines (Jenkins, Gradle) API design More ❯

Python Extreme comfort with log investigation and configuration file management Issue ticketing systems such as Jira APIs such as REST IDEs such as IntelliJ Java systems More ❯

expertise in React—you know it inside out Strong experience migrating applications to frontend-first architecture Solid understanding of building UIs that interface with Java backends Confident technical leadership within agile product teams A background in product/platform development, not traditional web agencies Comfortable leading and mentoring in a More ❯

create user documentation What Experience is Required: Experienced with DevOps and Agile methodologies. Skilled in Salesforce automation. Proficient in APEX, Visualforce, Lightning Web Components, Java, and HTML. Developed and maintained Salesforce Communities (Experience Cloud). Hands-on integration experience with outbound messaging, Salesforce connectors, streaming, and batch services Certifications in More ❯

Do you have a PhD in Computer Science? FULLY REMOTE Senior Java Developer – Sustainable Energy GreenTech Salary : £100-140k + benefits Location : fully remote from anywhere in the UK I am partnered with a unique energy software platform that is helping consumers transition towards a sustainable future by producing … energy as a services. They are in search of an enthusiastic and knowledgeable Senior Java Developer with a strong comprehension of the Core Java principles alongside a deep understanding in Advanced Computer Science: Algorithms Graph theory Interval graphs Compiler theory You will be a fantastic Senior Java Developer if you … have worked with Core Java and have extensive experience with Multithreading, Concurrency and Low Latency, because you will be building your own frameworks and designing new databases from scratch. Your role as a Senior Java Developer will include: - Domain modelling - Requirement engineering - Design - Initial bootstrapping - Concepts - Designing frameworks & architectural style More ❯

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 ❯

the full decisioning/customer onboarding journey — especially in a fast-paced or regulated environment Strong understanding of how engineering teams work, especially with Java Familiarity with SQL Server (data storage and queries) and some Python A hands-on mindset with a strategic edge — someone who can zoom in on 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 ❯

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 ❯

Looking to play your part in a revolutionary movement with sustainable energy? Are you a Core Java expert with extensive experience using concurrency, low latency and multithreaded applications? FULLY REMOTE Senior Java Engineer - Tech for Good Salary: up to £120k Location: Fully Remote from anywhere in the UK We have … a fantastic new opportunity for all you Java Engineers looking to get stuck into a new challenge working on exciting projects solving real-world problems. They are also very big supporters of Diversity & Inclusion so welcome all candidates. A unique energy software platform helping consumers transition towards a sustainable future … are looking for enthusiastic and knowledgeable Senior Java Engineers with a strong comprehension of the Core Java principles, including Multithreading, Concurrency and Low Latency to join their growing team. In this fantastic Senior Java Engineer role: You will have ownership over your projects Be involved in the end-to-end More ❯