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

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Développeur Senior Back/Fullstack Java — Angular / React

CONCRETIO SERVICES
Published on
AI
AI Agent
Angular

48k-53k €
Lyon, Auvergne-Rhône-Alpes
Développeur senior Java/Spring Boot (5 ans+) recruté en CDI, solide sur les microservices, les APIs REST et les tests automatisés, avec développement en environnement cloud (idéalement AWS) et une maîtrise frontend Angular ou React. Critère différenciant : bonne connaissance des enjeux et outils IA. MISSIONS PRINCIPALES Développement Backend Java Développer des microservices production-ready avec Java 17+ / Spring Boot (Spring Security, Spring Data, gestion des transactions, optimisation des performances) Concevoir et documenter des APIs REST (OpenAPI/Swagger), gérer le versionning et les erreurs Opérer des patterns event-driven via Kafka ou RabbitMQ en production Développement Frontend Contribuer au développement de composants complexes en Angular 17+ ou React (TypeScript, RxJS ou Hooks) Utiliser les patterns de state management (NgRx ou Redux) selon le contexte Qualité, Tests & DevOps Écrire des tests automatisés (JUnit 5, Mockito, TestContainers) avec une vraie pyramide de tests — pas du test en fin de sprint Maintenir et améliorer les pipelines CI/CD (GitLab CI, GitHub Actions ou Jenkins), gérer les images Docker Participer activement à la réduction de la dette technique et aux revues de code IA Appliquée au Développement Utiliser au quotidien les outils IA (GitHub Copilot, Cursor ou équivalents) pour la génération de code, les tests, la documentation et le debugging Partager les bonnes pratiques d'utilisation IA au sein de l'équipe et contribuer à l'évangélisation de ces outils Mentorat & Contribution Architecturale Accompagner les développeurs moins expérimentés (code review, pair programming, tech talks) Participer aux choix architecturaux avec le Tech Lead et contribuer aux décisions techniques sur les projets
Permanent

Job Vacancy
Javascript with Agile Software Engineer - Central London

Nexus Jobs Limited
Published on

London, England, United Kingdom
Javascript and Agile Software Developer – Central London The Client Developer will be responsible for the development and delivery of all client side aspects of our product, developing new features and launching new platforms. A successful candidate will have a proven ability in delivering customer facing JavaScript applications, in an Agile software development environment and a passion for building a world class product. As part of the tech team, you will play a lead role in this by designing and building world leading streaming services across web, mobile and TV platforms, working on new feature releases and evolving the next phase of our application framework. With a rapidly expanding company; growth within the team and opportunities to lead engineering initiatives are abundant. We need people who want to help us build a strong engineering culture and a fun, vibrant workplace. You will deliver high quality, robust and testable code adhering to internal engineering procedures, code conventions and development methodologies. Contribute to comprehensive documentation that supports the development and support lifecycles. Work to continually improve software deployment to ensure iterative releases and rapid deployment of updates to our customers across all platforms. Mentoring and supporting other developers with their day-to-day work. Monitor system performance and resolve any issues or failures in staging or production environments. Must have experience with JavaScript (vanilla JS, prototypes, scoping, design patterns, memory profiling). Track record of successful software delivery through all phases of development, including coding standards, code reviews, source control management, build processes, testing, and operations. Working knowledge of object-oriented design, design patterns and extreme programming. Familiar with build automation and continuous integration 3Ability to write unit tests using JavaScript in a common library such as Jasmine. Any experience of the following sills would be pretty handy: Node.js or other programming languages Cross-platform development preferable on smart TV and consoles Development of a high-profile digital video service Test driven development Experience with AWS, Docker, Kubernetes Experience of working in an Agile software development environment. Contract duration will be 6 months. Location is Central London. Please send your CV to us urgently for this contract assignment in Word format along with your daily rate and availability.
Contractor

Contractor job
257797/Développeur mobile Android KMP sénior - Montpellier

WorldWide People
Published on
Android

6 months
340-370 €
Montpellier, Occitania
Développeur mobile Android KMP sénior - Montpellier Participation au développement, affinages, dans une squad Ma Banque Goals and deliverables Tâches : Développement, tests unitaires Contexte Participation au développement, affinages, dans une squad Ma Banque Attendu : Participation active au projet, mise en place des bonnes pratiques, participer à la création d'un produit en Agile Compétences : Notre stack technique : - Maitrise KMP - Une expérience significative sur le développement d’application grand public Android NATIF - Maitrisant l’architecture MVVM + clean architecture + architecture modulaire - Maitrisant Kotlin (couroutines et flows) - Maitrise de Compose Android - CI/CD (jenkins, fastlane, gitlab CI) Capacité travailler en équipe Bon relationnel pour intégration dans une équipe multi métier Expérience dans un environnement agile Avoir déjà eu une expérience professionnelle en KMP et pouvoir comprendre rapidement notre architecture. Connaissance environnement projet iOS dans un contexte KMP Localisation Montpellier 3 jours de présence sur site client à Montpellier et 2 jours de télétravail par semaine. Expected skills Skills Skill level Jetpack Compose Expert Android Jetpack Expert KOTLIN Expert

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!
755 results

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