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.

1,064 results
Permanent

Job VacancySenior Backend Developer with C# .net Framework

Nexus Jobs Limited
Published on

£50k-80k
United Kingdom
Senior Backend Developer with C# .net Framework Working as part of the Digital team, you'll be responsible for the ongoing development and improvements to an eCommerce website as well as other internal applications for this award-winning Travel Company. You will be responsible for: Leading the eCommerce web and application development from a technical perspective Collaborating with the front end developer and design resource to deliver improved UI & UX A problem solver - you'll need to be able to analyse and suggest improvements to existing website features Analysing and identifying ways to automate processes working alongside the business lead Implementing automated regression testing for the software developed Skills and Experience: Excellent working knowledge of ASP.NET, C#, HTML, JavaScript, jQuery, React Framework, MS SQL Server, Mongo DB, Elasticsearch Understanding of SOLID development principles Worked previously on projects using the Umbraco CMS Continuous Delivery skills, tools and techniques (e.g. Git, Github, Team City, Octopus, Jenkins, Selenium, etc.) Familiar with Azure cloud services & setting up/managing resources/deploying apps Familiar with JIRA and Confluence Capable of working with (and developing) multiple (REST) APIs documented with e.g. OpenAPI/swagger and other API messaging formats e.g. JSON, XML, SOAP Experience of PowerBI, PowerQuery and R Experience of structured testing and quality assurance approaches (e.g. Test Driven Development and Behaviour Driven Development) A positive and cooperative individual who will work effectively across departments and within a team Worked in an agile/Kanban environment and familiar with JIRA and confluence Not afraid to challenge existing thinking in order to improve processes The Client will consider candidates with solid Backend development skills without Umbraco. The salary for this role will be in the range £50K to £80K per year depending on experience. The Client is based in Central London and this role will be working remotely. Do send your CV to us in Word format along with your salary and availability.
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Permanent

Job VacancyFull Stack Dot Net Software Developer

Nexus Jobs Limited
Published on

£55k-60k
West Finchley, England, United Kingdom
Full Stack Dot Net Software Developer Our Client is an established leader in the travel industry. They are looking to recruit a full stack Dot Net Software Developer to work on a major transformation programme for this award-winning Luxury Travel Company. Projects will include designing and implementing web based tools to automate operational tasks and improve accuracy of pricing and management information and web site enhancements. We are seeking an individual who is looking to take on the technical design and implementation of technical solutions for the business. The Client works with a number of third party suppliers and the candidate will also liaise and work closely with our vendors to help deliver solutions, as required. Depending on your expertise you will have the opportunity to take on the management of projects involving multiple stakeholders and vendors. You will be responsible for: Design and implementation of web based tools to automate a variety of business processes Implementation of enhancements to the company website (built on Umbraco) Interfacing with business systems and data warehouse to implement the required functionality Analysing and identifying ways to automate processes working alongside the business lead Designing and validating the technical suitability of proposed solutions including database design and software approaches proposed by vendors Taking on complex business change projects that involve multiple stakeholders and suppliers Potential for managing suppliers tightly to ensure delivery of our requirements within budget and on time Risk and issue management to ensure a pro-active approach is taken to managing these Skills and Experience: At least, 3-5 years commercial experience with specific retail Travel Industry domain knowledge Track record of delivering projects involving in-house resources and/or third party suppliers Ability to design and architect technical solutions to complex business problems Full Stack development experience (ASP.NET, C#, HTML, CSS, JavaScript, JQuery, ReactJS, AngularJS, MS SQL Server) CMS experience e.g. with Umbraco Continuous Delivery skills, tools and techniques (e.g. Git, Github, Jenkins, Docker, Vagrant, Chef, Puppet, Selenium, etc.) Familiar with Azure cloud services & setting up/managing resources/deploying apps Experience in implementing business process automation Capable of working with (and developing) multiple (REST) APIs documented with e.g. OpenAPI/swagger PowerBI, PowerQuery, Dax & M Other API messaging formats e.g. JSON, XML, SOAP Experience of structured testing and quality assurance approaches (e.g. Test Driven Development and Behaviour Driven Development) A positive and cooperative individual who will work effectively across departments and within a team Ability to understand and document business requirements This is an exciting new role at this organisation – salary range £55K - £60K. The company is based in London. Please send your CV to us in Word format along with your salary and availability.
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Permanent

Job VacancySenior Microsoft Dynamics D365 CE Developer

Nexus Jobs Limited
Published on

£50k-55k
Milton Keynes, England, United Kingdom
Senior Microsoft Dynamics D365 CE Developer Lead the ongoing development for the Global MS Dynamics CRM platform. Develop solutions to varied complexity levels for requirements from the global business Maintain a high-quality platform by with solutions developed in line with coding standard Design and implement MS Dynamics CRM solutions to be fully compliant with Client's business processes and requirements Design, code, test CRM application modules that meet Architecture Blueprint specification Use your deep and extensive knowledge of JScript, PowerApps, C#, .NET Core, and SQL Server, to further enhance the current solution to meet ongoing business requirements Participate in execution and documentation of tests ensuring that an application or architecture meets agreed Quality standards Ensure the implementation of best practices based on Microsoft Dynamics standards and supported configuration/customisations Evangelise the Dynamics core features and functionalities to support business decision making process Seek opportunities to continuously improve the Dynamics solution for the schools across all regions You will have 5+ years development in JS, C#. NET, SQL, PowerApps (1-2 yrs) 5+ years with all Dynamics areas (CRM, Marketing, Customer Service, Portal) Experience of process alignment to out of box functionality Configuration/customisation, Testing and debugging Development tools (Visual Studio) Excellent interpersonal skills English as primary language Experience in global delivery environment and working within a remote-teams. Experience of education sector and of DevOps with documenting solution design (High/low level) Must have MS Dynamics CRM Certifications along with a Degree in Information Systems or equivalent. The salary for this role will be circa £50K - £55K. The position will be based in Milton Keynes. Please send your CV to us in Word format along with your salary and availability.
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Contractor

Contractor job[FBO] Tech Lead Java - Nantes - 2073

ISUPPLIER
Published on

6 months
300-450 €
Nantes, Pays de la Loire
Dans le cadre de la modernisation de son système d'information, le client souhaite migrer plusieurs services centraux reposant sur une architecture legacy vers une architecture cible définie par les urbanistes SI. Le projet prévoit la création de cinq composants applicatifs : une base de données relationnelle, deux API exposées via OKAPI et deux traitements batch Java dédiés à l'import de données et à l'export de rapports mensuels. La mission consiste à renforcer l'équipe existante avec une expertise backend Java pour assurer la conception, le développement et la qualité des nouveaux services, tout en accompagnant les développeurs dans leur montée en compétence. Missions : - Analyser l'architecture existante et les besoins fonctionnels pour préparer la migration des services centraux - Participer au cadrage technique et définir l'architecture applicative cible - Initialiser les composants du projet dans la plateforme d'intégration continue à partir des frameworks internes - Concevoir et développer des services backend Java avec Spring Boot, Spring Batch et JPA/Hibernate - Développer les API REST de gestion et les services exposés via la plateforme OKAPI - Concevoir et réaliser les traitements batch Java d'importation et d'exportation des données - Participer à la conception et à l'implémentation de la base de données relationnelle PostgreSQL ou MySQL - Réaliser des composants de référence et accompagner les développeurs dans leur implémentation - Définir les bonnes pratiques de développement et effectuer les revues de code et merge requests - Accompagner techniquement l'équipe sur les choix d'architecture et la résolution des difficultés - Intégrer les outils et assistants IA dans les activités de conception et de développement - Définir et réaliser les tests unitaires, techniques et d'intégration avec les équipes projet - Garantir la performance, la robustesse, la résilience et la qualité des composants développés - Rédiger les documents de conception, les contrats de services, les dossiers de tests et les livrables de mise en production - Collaborer avec les équipes d'intégration et d'exploitation, traiter les retours de recette et de production et contribuer aux évolutions Kotlin selon les compétences disponibles Profil attendu : Tech Lead Java confirmé disposant de 3 à 8 ans d'expérience, avec une forte expertise en conception et développement de services backend Java et une maîtrise de Spring Boot. Une expérience solide des architectures API REST, des traitements batch, des bases de données relationnelles et des environnements d'intégration continue est attendue. La maîtrise de Kotlin et l'utilisation avancée des outils d'IA constituent des compétences complémentaires recherchées, tout comme une expérience d'encadrement technique. Le profil doit être autonome, pédagogue et capable d'accompagner une équipe existante dans un environnement multi-acteurs organisé selon SAFe, avec une attention particulière à la qualité, à la performance et à la documentation technique.
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Premium Job
Contractor
Permanent

Job VacancyDéveloppeur Java Senior à Niort

AIS
Published on
Agile Method
Agile Scrum
AI Agent

2 years
40k-41k €
350-400 €
Niort, Nouvelle-Aquitaine
Développeur Full Stack Java / React (H/F)ContexteDans le cadre de l'évolution et du maintien en conditions opérationnelles d'un système d'information stratégique dédié aux secteurs de la finance et de l'assurance, nous recherchons un(e) Développeur(se) Full Stack Java / React pour renforcer une équipe en charge d'applications Back-Office à forte valeur métier. Vous intégrerez dans un premier temps l'équipe de maintenance et d'exploitation afin de vous approprier l'environnement fonctionnel et technique, avant de participer aux projets d'évolution. Vos missionsParticiper à l'analyse des besoins et à la conception détaillée des solutions. Développer et maintenir des applications Back-Office en environnement Java/React. Réaliser les tests unitaires et les tests d'intégration. Contribuer à l'amélioration continue des performances et de la robustesse du système d'information. Challenger les choix techniques et être force de proposition sur les bonnes pratiques de développement. Assurer les corrections lors des phases de qualification et de garantie. Communiquer régulièrement l'avancement des travaux auprès du responsable de projet. Intervenir sur plusieurs sujets fonctionnels et techniques en parallèle. Environnement techniqueJava Spring / Spring Boot React SQL API REST Microservices Outils d'industrialisation et de qualité logicielle Outils d'assistance au développement basés sur l'IA Profil recherchéExpérience significative en développement Full Stack Java/React. Bonne maîtrise des architectures API REST et Microservices. Sensibilité aux problématiques de performance, de qualité et de maintenance applicative. Capacité à accompagner un projet depuis sa conception jusqu'à sa mise en production et sa phase de garantie. Aisance dans les échanges avec les équipes projets et métiers. Capacité à travailler dans un environnement complexe et multi-projets.
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Contractor

Contractor jobDeveloppeur fullstack Java/Angular confirmé (H/F)

Insitoo Freelances
Published on
Angular
Java
Test-Driven Development (TDD)

2 years
350-400 €
Lyon, Auvergne-Rhône-Alpes
Basée à Lille, Lyon, Nantes, Grenoble, Marseille, Paris et Bruxelles, Insitoo Freelances est une société du groupe Insitoo, spécialisée dans le placement et le sourcing des Freelances IT et Métier. Depuis 2007, Insitoo Freelances a su s'imposer comme une référence en matière de freelancing par son expertise dans l'IT et ses valeurs de transparence et de proximité. Actuellement, afin de répondre aux besoins de nos clients, nous recherchons un Developpeur fullstack Java/Angular confirmé (H/F) à Lyon, France. Les missions attendues par le Developpeur fullstack Java/Angular confirmé (H/F) : Vos missions : Concevoir et développer de nouvelles fonctionnalités robustes à partir des spécifications. Assurer la couverture de tests (TDD) et la correction des anomalies techniques et fonctionnelles. Participer aux revues de code, aux cérémonies agiles et aux réflexions d'architecture. Challenger les besoins fonctionnels au regard des contraintes techniques et des bonnes pratiques. Rédiger la documentation technique et apporter du support aux équipes fonctionnelles. Votre profil : Développeur Fullstack Confirmé avec une solide expérience logicielle. Maîtrise impérative de Java et pratique significative d'Angular. Expérience avérée de la méthode TDD (Test-Driven Development). Solides connaissances de l'écosystème Spring, Kafka, Elasticsearch ou Oracle appréciées. Appétence pour le travail en agilité et l'optimisation des performances. Les modalités : Lieu : Lyon. Télétravail : 50 % (2 à 3 jours par semaine). Durée : 6 mois renouvelables (visibilité long terme). Démarrage : 1er janvier 2027.
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Contractor

Contractor jobSenior Software Developers/Engineers with Python, Terraform and Go

Nexus Jobs Limited
Published on

£500
London, England, United Kingdom
Senior Software Developers/Engineers with Python, Terraform and Go Our Client is looking to recruit brilliant Software Developers/Engineers with upwards of 7 to 10 years solid proven track record of developing complex applications with Python coupled with Machine Learning and ideally Go. We're looking to recruit initially 2 excellent Software Engineers to work with an existing team of 4 software developers on a very large strategic consulting engagement. Must be 100% trustworthy with real integrity – this is a highly sensitive project. Key skills Python Machine Learning ideally Terraform Go programming language If you are excellent with developing software with C++ and/or C# etc… then you can easily learn Go. Excellence is vital. Ideally have security clearance. Duration for this assignment will be 3 to 6 months initially with possibility of the role becoming permanent at some point in the future. The Client has offices in Central London and the project is based in Oxford - and are happy with remote working for the foreseeable future. They are absolutely committed to family-friendly operations with diversity & work-life balance. Daily rate for this assignment will be dependent on your expertise – but will be in the range £500 to £2000 per day. Please note we really are looking for the best software developers – the cream of the crop – or crème de la crème. Do send your CV to us in Word format along with your daily rate and availability.
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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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