Java jobs in CardiffCrear alertas

You'll be working across the full software development lifecycle, applying a DevOps mindset and contributing to the design and delivery of high-quality, secure, and scalable applications. Contribute to the development of microservices and modern architectures. Knowledge of software design patter

About The Role Deadline for applications: 11:59pm on 31st October 2025 Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. We use technology to create impactful, human-centred solutions that make a difference to users and organisations. We believe great engineering happens when teams collaborate, learn, and build with purpose. Youll provide hands-on technical leadership, working closely with senior stakeholders, mentoring engineers across multiple teams, and line managing a small group of engineers while helping shape our approach to software delivery, architecture, and engineering culture. Responsibilities Lead the design and development of advanced software solutions, ensuring high standards of quality, security and scalability. Set the technical direction for projects and influence the wider technology strategy. Provide line management for a group of engineers (typically up to six), supporting their career progression and ensuring theyre set up for success. Provide technical leadership and coaching, fostering a culture of excellence, collaboration and continuous learning. Collaborate with senior stakeholders to translate complex business problems into elegant, robust solutions. Champion modern engineering practices including CI/CD, test automation and infrastructure as code. Foster a DevOps culture that enables teams to build, deploy and run their services confidently through automation and continuous delivery. Drive the evaluation and adoption of emerging technologies to improve how we deliver software. Lead technical due diligence during project scoping, bids and new opportunities. Represent the engineering function in strategic discussions, influencing our technology roadmap. Anticipate and manage project risks, helping teams navigate complex technical challenges. About You Professional knowledge and experience Essential Extensive experience in software engineering, with a focus on large-scale, complex systems. Polyglot engineer comfortable working across multiple languages and frameworks (weve used Python, Java, Kotlin, Node.js, C#, JavaScript, Express, React and Next.js to name a few). Passion for learning new technologies and helping others do the same. Proven track record of leading software architecture design and strategic technology initiatives. Strong expertise in cloud platforms, microservices and modern software development practices. Experience with direct line management and mentoring junior to senior engineers. Excellent communication skills. Ability to communicate complex technical concepts clearly to both technical and non-technical stakeholders. Desirable Experience working in a consultancy environment, managing client relationships at a senior level. Experience delivering government or public sector projects. Eligible for (or holding) SC security clearance Knowledge of AI, machine learning, or other emerging technologies relevant to software engineering. Experience promoting knowledge sharing. This might be through mentoring, blogs, talks, or internal communities. Behaviours and PACT values Purpose: Be values-driven, recognising that our client's needs are paramount. Approach client engagements with professionalism and creativity, balancing commercial and operational needs. Accountability: Be accountable for delivering your part of a project on time and under budget and working well with other leaders. Lead by example, promoting a culture where quality and client experience are foremost. Craft: Balance multiple priorities while leading high-performing teams. Navigate ambiguity and set the technical direction and approach to support positive outcomes. Togetherness: Collaborate effectively with others across TPXimpact. Build strong relationships with colleagues and clients. About Us People-Powered Transformation We're a purpose driven organisation, supporting organisations to build a better future for people, places and the planet. Combining vast experience in the public, private and third sectors and expertise in human-centred design, data, experience and technology, were creating sustainable solutions ready for an ever-evolving world. At the heart of TPXimpact, were collaborative and empathetic. Were a team of passionate people who care deeply about the work we do and the impact we have in the world. We know that change happens through people, with people and for people. Thats why we believe in people-powered transformation. Working in close collaboration with our clients, we seek to understand their unique challenges, questioning assumptions and building in their teams the capabilities and confidence to continue learning, iterating and adapting. Benefits Include: 30 days holiday + bank holidays 2 volunteer days for causes that you are passionate about Maternity/paternity - 6 months Maternity Leave, 3 months Paternity Leave Life assurance Employer pension contribution of 5% Health cash plan Personal learning and development budget Employee Assistance Programme Access to equity in the business through a Share Incentive Plan Green incentive programmes including Electric Vehicle Leasing and the Cycle to Work Scheme Financial advice Health assessments About TPXimpact - Digital Transformation We drive fundamental change in approaches to product and service development, delivery and technology. Our agile, multidisciplinary teams use technology, design and data to deliver better results, improving outcomes for individuals, organisations and communities. By working in the open, in partnership with our clients, we not only transform their systems and services but also build the capability of their teams, so work can continue without us in the longer term. Our focus is sustainable change, always delivered with positive impact. Were an inclusive employer, and we care about diversity in our teams. Let us know in your application if you have accessibility requirements during the interview. TPBN1_UKTJ

Role:PSA - Integrator - SolutionExperience - 5 yrsDetailed JDExperience with Apache products specifically: Geronimo, Tomcat, Camel, ServiceMix, Axis Experience integrating with ESB/IBUS technologies: Fuse ESB, Tibco, Web sphere etc Experience in use of Oracle and SQL Experience in development of pure Java based applications and Java middleware tier business logic Minimum 5+ years of experience aut...

About The Role Job Level: 10 UK Wide We are looking for a Lead Software Engineer who will be responsible for the design, development, and deployment of high-quality software solutions.You could be just the right applicant for this job Read all associated information and make sure to apply.This role involves leading a team of engineers on high-profile projects, ensuring best practices are followed, and driving continuous improvement in software development processes.You will collaborate closely with cross-functional teams, including product management and UX/UI, to ensure that our software solutions meet business and customer needs.You will be responsible for driving culture through your craft and be keen to take on line management responsibilities.Responsibilities Lead the architecture, design, and development of complex software systems, ensuring they meet high standards of quality, security, and scalability.Manage and mentor a team of software engineers, providing technical guidance to foster professional growth.Ensure that coding standards, development best practices, and operational processes are consistently applied.Collaborate with product managers, UX/UI teams, and other departments such as DevOps, QA, and IT to translate business requirements into technical specifications and ensure smooth delivery.Drive continuous improvement initiatives to optimise performance, reliability, and security in software applications.Conduct regular code reviews and ensure that feedback is constructive and promotes learning within the team.Implement and maintain CI/CD pipelines to streamline the development and deployment process.Troubleshoot and resolve complex technical issues that arise during the software development lifecycle.Stay up-to-date with the latest trends in software engineering, communicate complex technical concepts to non-technical stakeholders, and drive the adoption of new tools and methodologies where beneficial.Manage project timelines, ensuring that deliverables are completed on time and within scope.Contribute to bid questions & early-stage hiring eg cv screening or technical assessments when required About You Professional knowledge and experience Guide and optimise team workflows and processes.Demonstrate proficiency in a wide range of technical systems and tools.Identify and evaluate appropriate technologies and methodologies, making informed decisions about when custom software development is essential.Contribute to the developer community Inquisitive about internal areas like bids and hiring Provide technical leadership, coaching, and mentoring to your team Promote knowledge sharing and adoption of good practice Uphold best practices in areas such as Infrastructure as Code (IAC), security, testing, and continuous delivery pipelines.Flexibility to transition between programming languages with a clear understanding of their suitability for different tasks Essential : Extensive experience in full-stack software engineering, including design, development, testing, and deployment.Hands on experience with Java , Spring Boot , Python and Microservices, although a true polyglot is preferred.Strong understanding of software development methodologies such as Agile, TDD and DevOps.Some proficiency in multiple programming languages such as Python, JavaScript, or similar.Extensive experience writing well-tested code.Good knowledge of cloud platforms (e.g., AWS, Azure, GCP) and infrastructure as code Experience with CI/CD pipelines and automated testing frameworks.Experience with various architecture patterns eg microservices and event-driven.Experience with containerization technologies (e.g.Docker, Kubernetes).Proven ability to manage and lead engineering teams to success.Expertise in designing scalable and secure software architectures.Desirable : Knowledge of emerging technologies like AI Previous, relevant experience as a senior software engineer Leading a large multidisciplinary project Line management experience Experience interviewing and screening candidates Experience responding to bid questions Skills Software Architecture : Expertise in designing scalable, secure, and efficient software architectures, ensuring alignment with business goals.Cloud Platforms : Strong proficiency in cloud technologies, including architecture and deployment strategies.Programming and Development : Advanced knowledge of multiple programming languages and frameworks (e.g., Python, Java, Node.js).CI/CD and Automation : Implementing and maintaining continuous integration/continuous deployment pipelines to accelerate development cycles.Code Quality and Testing : Experience with automated testing frameworks (e.g., Jest, JUnit) and best practices for ensuring code quality.DevOps Practices : Expertise in DevOps, particularly around automating deployment, monitoring, and scaling applications.Communication : Able to confidently communicate with internal and external stakeholders at both the technical and non-technical levels.Able to present and give feedback to relevant groups.Eg demo/TDA Behaviours and PACT values Purpose: Be values-driven, recognising that our clients needs are paramount.Approach client engagements with professionalism and creativity, balancing commercial and operational needs.Accountability: Be accountable for delivering your part of a project on time and under budget and working well with other leaders.Lead by example, promoting a culture where quality and client experience are foremost.Craft: B alance multiple priorities while leading high-performing teams.Navigate ambiguity and set the technical direction and approach to support positive outcomes.Togetherness: Collaborate effectively with others across TPXimpact.Build strong relationships with colleagues and clients.About Us People-powered transformation Were a purpose driven organisation, supporting organisations to build a better future for people, places and the planet.Combining vast experience in the public, private and third sectors and expertise in human-centred design, data, experience and technology, were creating sustainable solutions ready for an ever-evolving world.At the heart of TPXimpact, were collaborative and empathetic.Were a team of passionate people who care deeply about the work we do and the impact we have in the world.We know that change happens through people, with people and for people.Thats why we believe in people-powered transformation.Working in close collaboration with our clients, we seek to understand their unique challenges, questioning assumptions and building in their teams the capabilities and confidence to continue learning, iterating and adapting.Were an inclusive employer, and we care about diversity in our teams. xjlbheb Let us know in your application if you have accessibility requirements during the interview.Benefits include: 30 days holiday bank holidays 2 volunteer days for causes that you are passionate about maternity/paternity- 6 months Maternity Leave, 3 months Paternity Leave life assurance employer pension contribution of 5% health cash plan personal learning and development budget Employee Assistance Programme access to equity in the business through a Share Incentive Plan green incentive programmes including Electric Vehicle Leasing and the Cycle to Work Scheme health assessments

Senior Java Engineer – Actuarial Data Squad – Outside IR35 - Contract. We’re looking for a Senior Java Engineer to join a high-profile project focused on backend systems that automate complex financial and actuarial processes. Develop backend systems and APIs in Java, using the Spring ecosyste

Our client, a leading player within financial services is looking to hire a Fullstack Java Developer to join an existing and high performing team. Work as a hands-on fullstack Java developer on FX / Swaps platforms. Analyse requirements and existing code, design and implement solutions in Java.

Lead Java DeveloperHealthTech SaaS | Tech for GoodUK-based, Fully Remote, Up to £75k, Excellent Benefits, PermanentLead Java Developer is required by our successful HealthTech scale-up client. You'll be leading a small, focused engineering team (5 developers) working on full-stack development withJ

Are you a Java Full Stack Engineer looking to work on cutting-edge, high-impact digital solutions? Do you want to use your expertise to help shape major transformation programmes across government and secure environments? If you're driven by innovation, value collaboration, and enjoy solving complex

Security Cleared Senior Java Developer.

Join a trusted supplier delivering mission-critical solutions in the defence and national security sector.You will work on leading-edge technologies across AI/Data Science, Cyber, Cloud, DevOps/SRE, and Platform Engineering, developing solutions that protect people, platforms, and information agains

A Security Cleared Senior Java Developer is needed to work with a global technology organisation providing software and digital solutions that help public sector and regulated organisations deliver essential services to millions of people worldwide.

Java Developer - £400 (Inside IR35) - 12 Month Contract. My client are seeking a Java Developer with strong expertise in Apache Kafka, Node.

Backend development of complex web and mobile apps using Java with a proven track record of delivering high-quality, enterprise-scale systems. Expert knowledge of Core Java concepts, including object-oriented programming (OOP), data structures, algorithms, multi-threading, and memory management. Lea

Hands on experience with Java, Spring Boot, Python and Microservices, although a true polyglot is preferred.

JSPs, Javascript, JQuery, html, CSS, Mockito/JMock, MS SQL Server, MyBatis, Azure, Azure DevOps Pipelines, Docker, Ansible, Linux, Java 11, Spring Boot. Java 8, Spring, Maven, Git, JUnit, Web APIs (REST/JSON and XML/SOAP).

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. We have built our entire banking platform in-house and mostly in Java. Java, which makes up the majority of our backend codeb

Senior Java Developer | Travel-tech Senior Java Developer | £300-400/day | Outside IR35 | Fully Remote within Europe.

Candidates should have a Bachelor's degree in Computer Science, along with substantial experience in JAVA and its frameworks.

Experience in building high-performance, latency-sensitive Java applications. Software Engineer III - Low-Latency Java and Kafka. We are seeking motivated Java engineers to enhance our global technology organization, focusing on modern solutions for the Corporate & Investment Bank’s Payments busin

Team Lead position [fresh experience during last 2 years]- At least 5+ years of proven experience in a Software Developer position- Java core, Java 11+ features- OOP/OOD knowledge, design patterns- HTML, CSS, JavaScript- Proven knowledge of ReactJS, Redux [2+ fresh years of proven experience]- Unit

Lead Software Engineer (Java) - Ledger.

The ideal candidate will have over 5 years of commercial experience with solid knowledge of Java core, Spring, and microservices. A technology solutions provider in the United Kingdom is seeking an experienced Java Developer to design and develop modern web applications and backend services.

Software Architect (Java & Cloud). Java 17, Spring Boot, Kafka, AWS. Java, Spring Boot, and Microservices.

Solid knowledge of Java core, Spring, ORM, SQL, and Redis. Hands‑on experience with Java Messaging and Microservices. Experience in using JavaScript, HTML, and CSS.

They are in search of enthusiastic and knowledgeable Senior Java Developers with a strong comprehension of Core Java principles to join their growing team. Java 17 moving to Java 19, Microservices, AWS, Kubernetes, Node. FULLY REMOTE Senior Java Developer – Sustainable GreenTech Project.

A leading software house in the UK is seeking a Senior Software Engineer with strong Java skills. Ideal candidates will have over 5 years of Java experience and a background in enterprise-level applications.

Platforms, preferably on AWS, using Kubernetes and microservices.Hands-on experience with modern backend stacks such as TypeScript/Node.Comfortable working with data models, APIs, service-oriented architecture, and event-driven systems.Resolution, problem-solving, and navigating resource constraints

Senior Java Full Stack Developer (SC Eligible) – Global digital consultancy seeking a Mid-Senior level engineer to join a rapidly growing team. Develop and maintain microservices using Java (Spring Boot). Extensive experience building microservices with Java (Spring Boot).

In this role, you will develop a mobile-first custodial trading app, leveraging your expertise in Java, Micronaut, and AWS.

A technology consultancy in the United Kingdom seeks an experienced Senior Software Engineer for a project migrating a legacy system to a cloud-based Java environment. The role involves writing Java and Python code, troubleshooting new system issues, and collaborating with client teams. Ideal candid

A fast-growing travel-tech organisation is looking for a Senior Java Developer to join their team. This fully remote position will involve leading the evolution of a large-scale Java, Spring Boot, and MySQL system.

The ideal candidate will have over 5 years of experience in cloud solutions, proficient in JAVA and JVM languages, and familiar with Agile methodologies.

The ideal candidate has at least 5 years of experience in both front-end and back-end development, with strong expertise in Java, Spring Boot, and JavaScript. A leading technology consultancy in the United Kingdom is seeking an experienced Java Developer.

A leading tech company in the UK is seeking a developer with expertise in Java 8, Spring, and legacy systems for a challenging permanent role.

NET (C#) and Java technologies.

Programming languages: Python, Golang, or JavaScript are a must.

The role requires strong expertise in Java, Python, and information retrieval technologies like Lucene and Solr.

Platforms, preferably on AWS, using Kubernetes and microservices.Hands-on experience with modern backend stacks such as TypeScript/Node.Comfortable working with data models, APIs, service-oriented architecture, and event-driven systems.Resolution, problem-solving, and navigating resource constraints

We are looking for an experienced Java Developer who can help perform migration of client platform:- Quickly onboard to Customer's processes- Develop new features in Java for Spring Boot Microservices, as well as maintain existing ones- Modernize Data Ingestion for faster searching and indexing- Col

This is a job posted by our partner Jooble.Below is a snippet of the job description.To read the full text, please click on the "Apply Now" link.Join our team and work with cutting-edge products.Developing and maintaining applications using C#,.Collaborating with cross-functional teams to drive prod

Sign in to set job alerts for “Java Software Engineer” roles. Rev-celerator Graduate Programme 2026: Backend Java Software Engineer. Rev-celerator Graduate Programme 2026: Backend Java Software Engineer.

Candidates should have extensive experience with Java, Spring Boot, and other programming languages, along with strong leadership skills.

Deep understanding of front-end technologies, such as JavaScript, HTML, and CSS. Experience with React or another comparable JavaScript framework.

A leading consultancy firm in the UK is seeking a Lead Software Engineer - Java.

Join us at SRT Marine Systems plc as Senior Java Developer. Job Title: Senior Java Developer.

This is a job posted by our partner Jooble.Below is a snippet of the job description.To read the full text, please click on the "Apply Now" link.Join our team and work with cutting-edge products.Developing and maintaining applications using C#,.Collaborating with cross-functional teams to drive prod

A leading software house in the United Kingdom is seeking a Senior Software Engineer with strong Java development skills to lead innovative projects. The ideal candidate will have over 5 years of Java experience and a background in enterprise-level solutions.

Hands on experience with Java, Spring Boot, Python and Microservices, although a true polyglot is preferred.