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.

1,056 results
Contractor

Contractor jobTech Lead java

MEETSHAKE
Published on
Angular
Apache Camel
API REST

6 months
Paris, France
Votre rôle et vos principales missions En tant que Tech Lead de la squad, vous joueriez un rôle clé dans l'alignement des décisions techniques avec la vision produit. Vous veilleriez à la qualité, à la cohérence et à la fiabilité des solutions livrées, tout en respectant les standards d'architecture et les bonnes pratiques. Vous accompagneriez les développeurs et les QA au quotidien en instaurant un cadre clair et stimulant, en facilitant les décisions techniques clés et en encourageant activement la montée en compétences de l'équipe. Vous joueriez un rôle moteur dans la création d'un environnement de travail collaboratif, exigeant et bienveillant, résolument orienté impact, amélioration continue et excellence technique. Vos principales missions : Piloter la conception logicielle, le développement et les revues de code afin de garantir la qualité, la robustesse et le respect des principes d'architecture. Prendre les décisions techniques clés et arbitrer les compromis entre performance, scalabilité et délais de delivery. Déployer et faire respecter les pratiques DevSecOps, en assurant leur intégration dans les pipelines CI/CD pour une delivery continue et sécurisée. Collaborer étroitement avec les Engineering Managers afin de sécuriser la faisabilité des livraisons, l'observabilité des systèmes et la fiabilité en production. Contribuer à la planification des releases et aux cérémonies agiles, en anticipant les dépendances, en identifiant les risques techniques et en apportant de la visibilité aux équipes. Promouvoir l'automatisation, la documentation et les bonnes pratiques de test pour améliorer la qualité et l'efficacité de la delivery. Encadrement des développeurs et des QA automation de la squad : clarification des priorités, coaching technique, pair programming, mentorat et revues de code, avec pour objectif de renforcer l'autonomie et la maturité technique de l'équipe.
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Contractor

Contractor jobDevops Poitiers (H/F)

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Published on
Ansible
DevOps
Docker

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Contractor jobIngénieur Java Spring Boot Microservices Kafka (Confirmé)

Naxotech
Published on
Apache Kafka
Docker
Java

1 year
370-440 €
Lille, Hauts-de-France
Poste : Software Engineer avec 4-6 années d'expérience. Mission longue basée à Lille (mode hybride). Le poste s'inscrit dans un contexte de transformation d'un système d'information consistant à migrer un monolithe vers une architecture microservices tout en assurant la stabilité des applications existantes. Objectifs : accélérer la transformation vers des modules microservices, renforcer l'expertise technique pour garantir robustesse et maintenabilité, assurer la continuité de service via un support de Niveau 3 et promouvoir l'amélioration continue (suivi des delivery metrics notamment DORA). Missions attendues : développement de nouvelles fonctionnalités et corrections (modules microservices), conception d'architectures adaptées, optimisation et refactorings pour la migration, participation aux phases de tests et de qualification avec les équipes QA, analyse et résolution d'incidents complexes en production (Support N3), rédaction de comptes-rendus d'analyse et formalisation de plans d'action, participation aux cérémonies agiles et pilotage des indicateurs de performance du delivery. Livrables : code source versionné, testé et documenté, analyses d'impact détaillées, mise à jour de la documentation technique et fonctionnelle, participation à la rédaction des besoins et spécifications, estimations de charges pour les développements. Le prestataire est garant de la qualité des livrables (respect des normes de qualité, optimisation des performances, non-régression et couverture de tests adéquate). Abonnez-vous à la page NaxoTech sur LinkedIn pour découvrir nos offres régulières
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Permanent

Job VacancyFull Stack Engineer - React & Java

Computer Futures
Published on

£133,680
Manchester, United Kingdom
Contract Full Stack Engineer | Java / ReactLocation: Manchester, hybrid, 2 days per week onsite Contract: Contract Experience: 5+ years Tech: Java, Spring Boot, React, TypeScript / JavaScript The OpportunityWe're working with a leading global digital organisation looking to bring on experienced Full Stack Engineers to join a team building a brand-new product from the ground up. This is a genuine product engineering role where you'll have the opportunity to influence how solutions are designed and built. Rather than simply picking up predefined tickets, you'll work closely with Product Managers, engineers and wider stakeholders to understand requirements, challenge ideas and determine the best technical approach. The team works across multiple locations and time zones, so they need engineers who are comfortable taking ownership, dealing with ambiguity and making independent technical decisions. What You'll Be DoingDesigning and building new functionality using Java, Spring Boot, React and TypeScript/JavaScript. Working across both backend services and modern frontend applications. Collaborating closely with Product Managers and multidisciplinary engineering teams. Taking ambiguous requirements and helping shape them into effective technical solutions. Making engineering decisions around areas such as service design, databases, caching and application architecture. Evaluating different technical approaches and clearly communicating the associated trade-offs. Creating technical documentation including RFCs and ADRs where appropriate. Challenging and clarifying requirements rather than simply implementing predefined solutions. Taking ownership from initial requirements and technical design through to delivery. What We're Looking For5+ years' commercial software engineering experience. Strong and recent Java / Spring Boot experience, this is essential. Recent hands-on frontend development experience. Commercial React experience is strongly preferred. Experience with TypeScript and/or JavaScript. Next.js experience would also be highly relevant. Engineers coming from Vue or similar modern frontend frameworks may also be considered if they have strong frontend fundamentals and are comfortable working with React. Experience working within Agile, multidisciplinary product teams. Strong experience collaborating directly with Product Managers/Product teams. The ability to make independent technical decisions and explain the reasoning behind them. Experience designing and building new solutions/products, rather than predominantly working on migration or maintenance programmes. What Does "Full Stack" Mean?You don't need to be a perfect 50/50 frontend/backend engineer. The team can consider: Backend-heavy Java/Spring Boot engineers with credible and recent frontend experience. Frontend-heavy engineers with strong enough Java/Spring Boot experience to contribute effectively on the backend. The key requirement is that you can genuinely contribute across the stack, with Java/Spring Boot being the non-negotiable technology. Product Engineering ExperienceThis is a particularly important part of the requirement. We're looking for engineers who have experience building products as part of multidisciplinary Product and Engineering teams, rather than primarily working on legacy migrations or narrowly defined implementation tasks. You'll ideally be able to demonstrate: Experience understanding the users/customers of the products you've built. Working with Product Managers to establish and clarify requirements. Designing and building new technical solutions. Challenging requirements where appropriate. Considering multiple technical approaches before deciding on a solution. Making and owning technical/architectural decisions. Communicating the reasoning and trade-offs behind engineering decisions. Collaborating effectively with engineers and stakeholders across multiple teams. The products you've worked on don't necessarily need to be externally customer-facing. Internal product experience is equally relevant. Essential RequirementsThere are several areas where the client cannot compromise: Strong, recent Java / Spring Boot expertise. Credible modern frontend development experience, ideally React. Genuine software/product engineering experience. Ability to contribute technically from day one. Comfortable independently owning technical decisions and solutions. Ability to attend the Manchester office 2 days every week. LocationThis is a hybrid Manchester-based contract, requiring attendance in the office two days every week. The specific office days will be agreed by the team, so applicants must live within a realistically commutable distance of Manchester or be genuinely prepared to relocate. Occasional travel to Manchester, such as once every few weeks, will not meet the requirement. Please click to find out more about our Key Information Documents. Please note that the documents provided contain generic information. If we are successful in finding you an assignment, you will receive a Key Information Document which will be specific to the vendor set-up you have chosen and your placement. To find out more about Computer Futures please visit Computer Futures, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom | Partnership Number | OC387148 England and Wales
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Permanent

Job VacancyIngénieur Backend Node.Js - Microservices H/F

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Published on
Apache Kafka
API
Java

45k-55k €
Saumur, Pays de la Loire

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Permanent

Job VacancyDéveloppeur Full Stack React / Java Senior (H/F)

WINSIDE Technology
Published on
API REST
CSS3
HTML5

47k-50k €
Lille, Hauts-de-France
À propos du posteDans le cadre du développement et de l'amélioration continue de ses produits digitaux, notre client recherche un(e) Développeur Full Stack React / Java Senior pour renforcer une équipe agile, au sein d'un environnement orienté qualité, expérience utilisateur et accessibilité. Vous contribuerez à la conception et à l'évolution d'interfaces modernes tout en participant au développement des services back-end associés. Vos missionsDéveloppement Front-end & Design System (60%)Développer des interfaces web performantes, robustes et maintenables en React et TypeScript. Concevoir, faire évoluer et maintenir un Design System à travers des composants réutilisables et documentés dans Storybook. Garantir la cohérence visuelle et fonctionnelle des interfaces en collaboration avec les équipes UX/UI. Accompagner les équipes dans l'adoption et l'utilisation du Design System. Promouvoir les bonnes pratiques de développement et la qualité du code. Accessibilité numérique & Qualité des interfaces (20%)Intégrer les standards d'accessibilité numérique (WCAG, RGAA) dès la conception des composants. Veiller à la conformité et à l'amélioration continue de l'accessibilité des interfaces. Mettre en place et automatiser les contrôles qualité liés à l'accessibilité et à l'expérience utilisateur. Sensibiliser les équipes aux bonnes pratiques d'accessibilité et d'ergonomie. Développement Back-end (20%)Développer et maintenir des services en Java / Spring Boot. Concevoir et faire évoluer des API REST. Participer aux travaux de maintenance, d'optimisation et d'amélioration technique. Assurer la qualité des développements via les tests et la bonne intégration entre les couches front-end et back-end. Collaboration & Méthodologie AgileParticiper aux cérémonies Agile (sprint planning, daily meetings, rétrospectives). Contribuer à l'analyse, au découpage et à l'estimation des User Stories. Réaliser des revues de code et participer à l'amélioration continue des pratiques de développement. Collaborer étroitement avec les équipes Produit, Design et Développement. Compétences techniquesFront-end React TypeScript Storybook HTML5 / CSS3 Design System Back-end Java Spring Boot API REST Qualité & Méthodes Accessibilité numérique (WCAG, RGAA) Tests automatisés Revue de code Agile / Scrum Git
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Permanent

Job VacancyIngénieur Data sénior F/H

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Published on
Apache Spark
Big Data
Java

Balma, Occitania

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Contractor

Contractor jobMicrosoft Power Platform Developer

Signe +
Published on
AI Agent
Python
React

1 year
400-500 €
Toulouse, Occitania
Contexte : La mission principale vise à concevoir, développer et industrialiser des solutions digitales innovantes en s'appuyant sur les technologies d'Intelligence Artificielle et les outils de développement augmentés tels que GitHub Copilot, Microsoft Copilot, Azure AI et la Power Platform. Environnement : • 400 utilisateurs, Windows workstation 11, M365 • Serveurs applicatifs hébergés dans le cloud Azure • Multi-sites Description de la mission : La mission principale consistera à concevoir, développer, industrialiser et maintenir des solutions numériques à forte valeur ajoutée pour les métiers, en mobilisant les technologies Microsoft 365, Azure, Power Platform, IA générative et automatisation. Cette activité de développement et d'innovation représentera environ 70 % de la mission. Les activités principales seront : • Le recueil et la qualification des besoins métiers, la conception fonctionnelle et technique des solutions, ainsi que la priorisation des développements selon la valeur attendue. • Le développement Full Stack d'applications, d'automatisations, de connecteurs, d'agents IA ou de composants Power Platform, dans une logique d'industrialisation, de sécurité et de maintenabilité. • L'intégration des outils d'IA générative et de développement augmenté afin d'accélérer les cycles de réalisation, améliorer la qualité du code et favoriser l'innovation continue. • La mise en production, la documentation, l'accompagnement des utilisateurs et le transfert de compétences vers les équipes internes. En complément, le prestataire consacrera environ 30 % de son activité au maintien en condition opérationnelle des services existants. Cette part de RUN n'est pas l'activité principale de la mission, mais elle demeure un volet essentiel pour sécuriser la continuité opérationnelle, préserver la qualité de service auprès des utilisateurs et garantir la stabilité des solutions déjà déployées au sein de SHEM
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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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