26 to 50 of 81 Java Jobs in Hemel Hempstead

AI solutions across marketing, operations, customer service, and sales. AI Engineer Required Qualifications and Skills: Proficiency in programming languages such as Python, R, or Java, with experience in AI frameworks (e.g., TensorFlow, PyTorch, Keras). Strong knowledge of data analysis, visualisation tools, and big data technologies (e.g., SQL, Hadoop, Spark More ❯

Key Requirements Proven experience leading and growing high-performing software engineering teams (3–10+ engineers) and cross discipline teams. Strong technical background (ideally in Java/C# Node.js, TypeScript, or similar backend languages). Deep understanding of software development life cycle, CI/CD, testing, and agile methodologies. Excellent organisational 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 ❯

issues. Required Skills and Experience: Strong development skills in Gosu for Guidewire (3-5 years of experience). Experience in programming languages such as Java or C#.Net Familiarity with insurance industry standards and protocols. Excellent problem-solving skills and attention to detail. Strong communication skills and ability to work collaboratively 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 ❯

implement scalable and maintainable systems Strong background in API development and associated architectural patterns such as REST or gRPC Programming experience in Python, Go, Java, or similar. Experience with data science concepts such as data preparation, exploration, modelling and the ability to apply this process when handling structured or unstructured More ❯

implement scalable and maintainable systems Strong background in API development and associated architectural patterns such as REST or gRPC Programming experience in Python, Go, Java, or similar. Experience with data science concepts such as data preparation, exploration, modelling and the ability to apply this process when handling structured or unstructured More ❯

sector project focused on building secure, high-performance digital services using enterprise-grade microservice architecture. We are currently looking for an Actively SC-cleared Java Developer to join a high-impact team working on a mission-critical government platform. This is a fantastic opportunity to contribute to meaningful work in … a collaborative, agile environment. Tech Stack & Responsibilities: Backend Development: Java (Spring Boot), PostgreSQL, Docker Testing: Test-Driven Development (TDD) using JUnit, Mockito CI/CD: Experience with Jenkins or similar pipelines Collaboration: Agile working with cross-functional teams Desirable Skills: Frontend experience with React & TypeScript Messaging: Kafka Build tools: Gradle 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 ❯

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 ❯

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 ❯

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 ❯

on customer needs and satisfaction, setting high standards for quality and quantity. Desired Skills and Experience: Dynamics 365 Accreditations Proficiency in C#, ASP.Net, Python, Java, JSON Experience with enterprise CRM systems Proven track record in delivering complex projects Strong customer engagement and management skills If the above opportunity is of 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 ❯