Find your next tech and IT Job or contract Java Developer (Kotlin, Groovy...)

The Java developer is a web and application development professional specialized in using Java, a server-oriented programming language. They are also called: Java programmer, Java programmer-analyst, Java software development engineer. This IT technician analyzes the specifications provided by the client to identify a technical solution that meets their technical and functional requirements point by point. They are then responsible for custom designing all or part of the computer program in Java. Then comes the trial and testing phase of the applications. Once the program is operational, they can proceed with writing technical documentation and user guides. The Java developer can progress towards supervisory positions, project manager, IT technical manager or even a commercial career.

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Permanent

Job VacancyGeospatial Developer

CGI
Published on

United Kingdom
Do you enjoy solving complex challenges with geospatial technology? Are you keen to see your work making a real difference in both public and commercial sectors? If you're ready to grow your skills and contribute to innovative projects, join our expanding Geospatial team at CGI as a Geospatial Developer. We work on projects that enhance services, transform organisations and ultimately make everyday life easier for people. At CGI, you'll be part of a collaborative, supportive environment where your development matters as much as the solutions you create. CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named one of the 'World's Best Employers' by Forbes magazine. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a member not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you'll be part of an open, friendly community of experts. We'll train and support you in taking your career wherever you want it to go. This is a hybrid working pattern role and you may need to travel occasionally within the UK as needed – ideally you will be based within a commutable distance to one of the following CGI offices London, Bristol, Birmingham, Reading, or Glasgow, but we will consider candidates from other UK locations. All applicants must hold or be prepared to undergo National Security Vetting (NSV) to Security Check (SC) level as a minimum.
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Contractor

Contractor jobRPA Developer / UiPath Developer - confirmé

VISIAN
Published on
API
Monitoring
Robotic Process Automation (RPA)

1 year
450-460 €
Paris, France
Analyser et concevoir : étudier les besoins, challenger l'éligibilité RPA, évaluer la faisabilité technique et contribuer au chiffrage, aux risques et au ROI. Développer : réaliser des automatisations avec UiPath Studio en appliquant les standards de l'équipe, notamment modularité, réutilisabilité, gestion des exceptions, logs et paramétrage. Industrialiser : concevoir des solutions adaptées aux robots attended et unattended, utiliser Orchestrator pour les assets, files, déclenchements, environnements et déploiements. Tester et documenter : préparer les tests unitaires et d'intégration, contribuer à la recette, corriger les anomalies et produire les dossiers de conception, procédures d'exploitation et éléments de traçabilité. Déployer et sécuriser : préparer le packaging, le versioning et les mises en production en lien avec les équipes Ops, architecture et SSI, dans le respect des habilitations et de la gestion des secrets. Exploiter et maintenir : superviser les exécutions, analyser les logs, diagnostiquer les incidents, assurer les corrections et évolutions, et contribuer à la stabilisation des robots. Collaborer : participer aux revues de code, aux communautés de pratique et au partage de composants, templates et bonnes pratiques. Contribuer à la transformation : participer à la migration de robots Blue Prism vers UiPath et, selon les cas d'usage, à l'intégration d'API, de traitement documentaire intelligent ou de capacités agentiques. Analyse de faisabilité et contribution au chiffrage. Conception technique et documentation PDD/SDD selon l'organisation du projet. Workflows UiPath versionnés, testés et revus. Jeux et preuves de tests, dossiers de mise en production et runbooks. Logs, tableaux de suivi, diagnostic d'incidents et plans de correction. Composants réutilisables, documentation et retours d'expérience partagés avec la communauté RPA
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Fixed term

Job VacancyAI Developer

LA International Computer Consultants Ltd
Published on

7 months
SW1A 2AH, City of Westminster, England, United Kingdom
Job title: AI Developer (Backend & Frontend) Location: London (Hybrid, Minimum 2 Days Onsite per Week) Contract Length: 12 Months IR35 Status: Inside IR35 Rate: Negotiable We are currently recruiting for multiple AI Developer opportunities to support a major enterprise AI programme. These roles offer the chance to work at the forefront of AI innovation, developing intelligent applications and solutions that leverage the latest advancements in Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), and modern cloud technologies. We are seeking both Backend AI Developers and Frontend AI Developers who are passionate about building scalable, secure, and user-focused AI solutions within a collaborative delivery environment. The Role As an AI Developer, you will play a key role in designing, developing, and integrating AI-powered applications and services. You will work closely with architects, engineers, and business stakeholders to deliver innovative solutions that drive business value and enhance user experiences. Depending on your specialism, you will contribute to backend AI services, frontend user interfaces, or a combination of both. Essential Skills & Experience Python | LLM Integration | Prompt Engineering | RAG Architectures | Vector Databases | Embeddings & Tokenisation | AWS Services | Git / Version Control | REST APIs | Authentication, Authorisation, Firewalls & API Gateway Frontend Experience (For Frontend Developers) React or Other Modern Web Frameworks | TypeScript | UX Implementation | API Integration Desirable Skills MCP (Model Context Protocol) | IBM watsonx Orchestrate | CI/CD Pipelines What We're Looking For * Experience developing AI-enabled applications using modern frameworks and technologies. * Strong understanding of LLM integration and prompt engineering techniques. * Experience designing and implementing RAG-based solutions. * Knowledge of vector databases, embeddings, and tokenisation concepts. * Experience working with cloud platforms, particularly AWS. * Strong API development and integration skills. * Understanding of secure application design, authentication, authorisation, and API gateways. * Ability to work effectively within agile, multidisciplinary teams. Why Apply? * Join a high-profile AI transformation programme. * Work with cutting-edge AI technologies and frameworks. * Collaborate with industry-leading technical teams. * Contribute to the development of innovative enterprise AI solutions. * Long-term contract opportunity with flexible hybrid working arrangements. If you are an experienced AI Developer and would like to learn more about this opportunity, I'd be delighted to arrange a brief call to discuss the role in more detail. LA International is an award-winning partner of choice for many of the world's most influential companies and government organisations. Holding Enhanced Government Security Accreditation, we are recognised as the European market leader in the delivery of Security Cleared talent to organisations that demand the very highest levels of security, compliance and assurance. A multiple award-winning organisation, having secured the prestigious Queens Award for Enterprise: International Trade over consecutive years. We are committed to fostering an inclusive, equitable and accessible workplace where everyone feels valued and supported. We welcome applications from all individuals, regardless of background or identity, and we encourage candidates who may not meet every listed requirement to still apply. If you require any adjustments or support during the recruitment process, please let us know and we will work with you to ensure a fair and accessible experience. Please Note: If a high volume of applications is received, only candidates shortlisted will be contacted.
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Permanent

Job VacancyUltra Low Latency Developer JAVA - CONTRACT OR PERMANENT - Scope AT

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Published on
Java
Linux

London, England, United Kingdom

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Permanent

Job VacancySenior Software Developer

CGI
Published on

United Kingdom
Join CGI and help shape the digital services that support one of the UK's most important public sector organisations. As a Senior Software Developer, you'll play a key role in delivering secure, scalable solutions that enable our client to modernise their systems and improve services for millions of UK citizens. Working within a collaborative Agile environment, you'll contribute to innovative cloud-based platforms, influence technical direction, and mentor others while developing solutions that have a meaningful impact. At CGI, you'll be empowered to take ownership of your work, collaborate with talented colleagues, and continue growing your career through ongoing support and development. CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK 'Best Employer' by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you'll be part of an open, friendly community of experts. We'll train and support you in taking your career wherever you want it to go. Due to the secure nature of the programme, you will need to hold UK Security Clearance or be eligible to go through this clearance. This is a remote position.
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Permanent

Job VacancySenior Software Developer

Bluetown
Published on

£50k-60k
Greater London, United Kingdom
Job Title: Senior Software Developer Location: Staplehurst, Kent (Please note that candidates must live within a 20 mile radius to apply) Salary: £50,000 to £60,000 (dependent on experience) Job Type: Permanent/ Full time About Us: Burtons Manufacturing Co Ltd. is a veterinary equipment manufacturer based in Staplehurst, Kent. Established in 1981 Burtons has been supplying the veterinary industry with a full range of products for over 40 years. Fundamental to the provision of safe anaesthesia is the support of well-designed ventilation and patient monitoring equipment. Burtons have a range of products designed specifically for veterinary use, with embedded or mainstream operating system software running mainly on Windows PC's or Linux platforms. About the role: Due to the growth of the company and range of products, Burtons require an experienced programmer to expand the development team. Burtons are looking for an experienced programmer well versed in Windows and Linux software development using predominantly C++, but also C#, .NET and web-based programming languages. The role will involve working on user-interface software for the control of mechanical ventilators and the monitoring of patients under anaesthesia. Burtons have a combination of electronic and clinically skilled personnel within the company driving forward new advances in animal ventilation and monitoring techniques. Burtons would like to expand the current software into hand-held mobile devices. This role reports directly to the Production Director. Duties and Responsibilities: This is a senior role requiring proven skills and abilities; please note this role is not suitable for applicants requiring further training/mentoring. Work with existing programmers on developing new product code for Windows and Linux platforms. Current C++ projects include new animal ventilators, new Multi-Parameter patient monitors and a new ventilator simulation system. Be involved in the creation of new C++ software from scratch, matched to the requirements of new products. Support existing code in legacy products (C++ and C#) by responding to customer reports and identified software defects. Support the development team with university and internal research projects. Work with the development team to expand the platform usage of existing software to include hand-held devices such as tablets and mobile phones. Demonstrate a desire to take ownership of own work and maintain excellent attention to detail. Work across departments to provide bespoke software solutions About you: Primary: Minimum 5 years' experience of developing applications using Windows Visual Studio Well versed in predominantly C++ and C, with experience of C#, and .NET Strong experience of working with Windows and Linux operating systems Ability to adopt ownership of responsibility for a project, to oversee meeting of deadlines and project objective. Tertiary education with supporting qualifications Demonstration of previous industry work history Demonstration of extensive knowledge and previous experience may be considered in place of formal tertiary qualifications Secondary: Good organisational and planning skills Clear and precise documentation and annotation for code development Ability to work alone and as part of a development team Ability to understand and focus on the core requirements of a task Ability to clearly explain ideas and concepts to less experienced members of the team or members of other departments Beneficial: Experience of embedded systems C, C++ programming in embedded systems Working with the Microchip range of microcontrollers Experience of working with iOS and Android platforms Benefits: Competitive annual salary £50,000 to £60,000 (dependent on experience) Permanent contract, 40 hours per week, Monday to Friday; Burtons have a range of flexible working options available for the right candidate. 33 holiday days per year (inc. bank holidays) Contributory pension scheme Excellent opportunities to train and progress Offices and workshops based in beautiful countryside setting On-site car parking Staff events, such as the Big Summer Party and awards Scheme Please click the APPLY button to submit your CV for this role Candidates with experience or relevant job titles of Lead Software Engineer, Principal Developer, Software Architect, Senior Programmer, and Technical Lead may also be considered.
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Permanent

Job VacancyAI Engineer / Developer

CGI
Published on

Gloucester, England, United Kingdom
At CGI, you will help design and deliver advanced AI solutions that support mission-critical systems across the Space, Defence and Intelligence sector. As an AI Developer / Engineer, you will build and deploy intelligent applications that unlock the value of data, enhance decision-making, and drive operational impact. Working with cutting-edge technologies and expert teams, you will take ownership of complex challenges, contribute innovative ideas, and grow your career within a collaborative and supportive environment. The Space, Defence and Intelligence business unit in CGI is a true IT Systems Integrator. We work, build, and operate bespoke, technically complex, mission-critical systems which help our clients keep us all safe and secure. We bring innovation to our clients using proven and emerging technologies, agile delivery processes and our deep expertise across the breadth of space, defence, intelligence, aerospace and maritime, all underpinned by our end-to-end cyber capability. We work collaboratively with global technology companies, cutting edge SMEs and academia to deliver the optimal solution for each client. CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK 'Best Employer' by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you'll be part of an open, friendly community of experts. We'll train and support you in taking your career wherever you want it to go. Due to the secure nature of the programme, you will need to hold UK Security Clearance or be eligible to go through this clearance. This position will be based on site near Gloucester 5 days a week.
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Contractor

Contractor jobRPA Developer / UiPath Developer - Junior/Confirmé

VISIAN
Published on
API
BI
Big Data

1 year
450-460 €
Paris, France
Analyser et concevoir : étudier les besoins, challenger l'éligibilité RPA, évaluer la faisabilité technique et contribuer au chiffrage, aux risques et au ROI. Développer : réaliser des automatisations avec UiPath Studio en appliquant les standards de l'équipe, notamment modularité, réutilisabilité, gestion des exceptions, logs et paramétrage. Industrialiser : concevoir des solutions adaptées aux robots attended et unattended, utiliser Orchestrator pour les assets, files, déclenchements, environnements et déploiements. Tester et documenter : préparer les tests unitaires et d'intégration, contribuer à la recette, corriger les anomalies et produire les dossiers de conception, procédures d'exploitation et éléments de traçabilité. Déployer et sécuriser : préparer le packaging, le versioning et les mises en production en lien avec les équipes Ops, architecture et SSI, dans le respect des habilitations et de la gestion des secrets. Exploiter et maintenir : superviser les exécutions, analyser les logs, diagnostiquer les incidents, assurer les corrections et évolutions, et contribuer à la stabilisation des robots. Collaborer : participer aux revues de code, aux communautés de pratique et au partage de composants, templates et bonnes pratiques. Contribuer à la transformation : participer à la migration de robots Blue Prism vers UiPath et, selon les cas d'usage, à l'intégration d'API, de traitement documentaire intelligent ou de capacités agentiques.
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Permanent

Job VacancyFullstack Software Developer

Rise Technical Recruitment Ltd
Published on

£50k-60k
BS1 2HP, Bristol, England, United Kingdom
Software Engineer (PHP & JavaScript) Bristol, hybrid, typically 1 day a week in the office £50,000 to £60,000 + 28 days holiday + bank holidays, PMI, pension, social events If you like the idea of owning proper, business critical software rather than being one tiny cog in a huge engineering machine, this is one to look at. This role is all about building the internal systems that sit at the heart of a fast-moving international trading business, where every feature you ship shows up directly in how the company runs and makes money. You will be joining a small, profitable B2B luxury fashion distribution business that partners with global brands to turn problematic wholesale into a controlled, profitable channel. It is a low ego, close knit team across sales, operations and IT, with in house development treated as a strategic function, not a support service. They care a lot more about team fit, attitude and communication than ticking every single box on a tech checklist. It is a friendly place where everyone gets on, with a grown up, flexible approach to work. The IT team is typically in the Bristol office one day a week, with the rest of the time spent working remotely. The role sits in a small development team working on their own internal platform rather than off the shelf tools. You will spend most of your time on the backend, building and evolving the core systems that power operations, reporting, analytics and their B2B customer portal, while also being comfortable in a modern JavaScript front end. You will work closely with the Head of Development on solution design and architectural decisions, and with end users across the business to make sure what you build actually solves real problems in a pragmatic way. The ideal candidate will be a Full Stack Software Developer with strong PHP (Symfony or Laravel) and JavaScript skills (Vue or React). This is a fantastic opportunity for a Software Developer to join a small, flexible and talented team where your work is central to how the business runs, where you will have proper ownership without the politics of a huge organisation, and be treated well! The Role Design, build and maintain backend heavy features across internal systems that support operations, reporting, analytics and the B2B portal Work closely with the Head of Development to shape solution design, architecture and technical direction Write clean, testable, SOLID compliant PHP using Symfony, with strong unit and functional test coverage as part of everyday development Contribute to and improve shared standards, code reviews, CI and deployment practices, including the growing use of AI tools in the workflow Work with business users across sales and operations to understand requirements, refine ideas and turn them into pragmatic, maintainable solutions Help evolve the platform and infrastructure, using technologies such as PostgreSQL, Clickhouse, Vue.js, AWS and Docker The Person Strong commercial experience with PHP in a modern framework such as Symfony or Laravel in an enterprise or business critical environment Solid understanding of object oriented design, SOLID principles and how to structure systems for long term maintainability Experience building and testing API driven backend systems, with unit and functional tests as a normal part of your work Comfortable working with a modern JavaScript framework such as Vue or React as part of a full stack workflow Happy working in a small, collaborative team where you take real ownership, communicate clearly and enjoy being close to the commercial side of the business Nice to have experience with PostgreSQL or other relational databases, Dockerised applications, AWS hosted environments and using AI tools to improve productivity or code quality Rise Technical Recruitment Ltd acts an employment agency for permanent roles and an employment business for temporary roles. The salary advertised is the bracket available for this position. The actual salary paid will be dependent on your level of experience, qualifications and skill set and will be decided by our client, the employer. Rise are not responsible or liable for any hiring decisions made by the end client. We are an equal opportunities company and welcome applications from all suitable candidates.
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Frequently asked questions about working as a Java Developer (Kotlin, Groovy...)

What is the role of a Java Developer (Kotlin, Groovy...)

The Java developer is a computer specialist who focuses on designing software and websites. As the name implies, they have Java programming language down pat! Passionate and versatile, the Java developer must possess solid technical skills and some essential qualities to provide their client with a customized IT solution.

How much does a Java Developer (Kotlin, Groovy...) charge

The mastered frameworks, the company's sector, its location and the technical issues to be solved are all criteria that affect the Java developer's salary. Nevertheless, their daily rate is relatively high, even for a beginner. The latter earns an average of 483 euros per day. Their salary will be around £40K.

What is the definition of a Java Developer (Kotlin, Groovy...)

The Java developer creates applications at the client's request using their preferred language: Java. For this purpose, they must comply with the requirements provided in the specifications. They develop the application, then manage the testing phase as well as maintenance and update planning

What type of mission can a Java Developer (Kotlin, Groovy...) handle

The tasks generally assigned to a Java developer are: • Definition of client needs; • Application programming; • Development of website structure; • Writing explanatory notes so that the written code lines are understandable by other stakeholders; • Adding new functionalities and improving the performance of an existing application; • Performing unit tests and integration tests; • Technical support; • Updating existing code.

What are the main skills of a Java Developer (Kotlin, Groovy...)

Knowledge of Java language must be complemented by knowledge of: • The J2EE development platform; • Other programming languages; • Oracle and SQL databases; • Tools and frameworks such as Spring, Spring boot, React, Angular, Hibernate, AWS, GWT, Struts or Docker; • Algorithms; • Security standards and procedures to combat cyberattacks; • The business environment (market, services, customers). Those who wish to work as Java developers must also master English.

What is the ideal profile for a Java Developer (Kotlin, Groovy...)

In addition to the diploma and technical skills, recruiters require future Java developers to be: • Rigorous and precise in writing code; • Creative; • Good listeners; • Able to work in an agile environment; • Flexible and available; • Able to communicate and explain their knowledge to non-technical people; • Curious, as computer programs and languages are constantly evolving. A strong sense of analysis and organization is also required!

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