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.

1,075 results
Contractor

Contractor jobSenior Java Software Application Development Engineer

Nexus Jobs Limited
Published on

New York, United States of America
Senior Java Software Application Development Engineer A Senior Application Engineer with strong expertise in the development and maintenance of enterprise level, Java JEE based systems. The candidate will be part of a team responsible for developing and maintaining the KYCView application used by our Compliance business. Duties will include designing and developing new application features / code within the existing application framework, and researching, identifying, and devising solutions for software defects within the application. KYCView is written in Java, and involves the integration of JEE, web services, Oracle, IBM BPM and ODM, and MQ. Demonstrated expertise in analyzing and understanding existing application architectures, and developing solutions within a pre-existing framework, is a must. The Client is looking for a seasoned Java professional with 7 to 12 years plus expertise in working Java. Responsibilities Design and development of enhancements within KYCView application framework Research and resolve defects during all phases of the software development cycle Support and execute functional and performance testing Assists in troubleshooting production environment and tuning the environments Provides guidance on infrastructure and environment setup Ensures technical best practices are followed during all phases of the project Provides guidance on intended solution and best practices during development, configuration and testing phases Performs code reviews and ensures standards are applied to each solution component Qualifications Required: Strong, disciplined analytical and problem-solving skills. Must have at least 10 + years of experience in design, implementation, and audit / review of systems applications, and code Extensive Java, JEE n-tier application experience Experience in design, implementation, and audit / review of enterprise wide, large scale implementations. Knowledge and experience with, WAS, AngularJS 1.x and AngularJS5.0, JavaScript, Java, JPA (Open JPA), Spring Hibernate, CSS, AJAX, JSON, Bootstrap, NodeJS, XML, Servlet and JSP. Experience with SOAP and REST based WebService development. Designed Application in Object Oriented Programming Methodology [OOP] using Component Methodology (Top Down), Catalysis Methodology (Bottom Up). Experience in Spring IOC and J2EE CDI and should have developed application using “Enterprise Architecture Models”. Good experience in recognizing and reusing Design Patterns -GOF, J2EE design patterns, Architectural patterns, SOA Design Patterns, Enterprise Integration Patterns. Experience with WebSphere Application server is required. Good knowledge on logical and physical Data Modeling using normalizing Techniques. Good knowledge of automated CI build and deployment infrastructure and processes for multiple projects using tools like Jenkins ,CARA,GIT and Stash. BS/BA degree in Computer Science or related work experience required. Strong Hands on experience in business object modeling using Hibernate/JPA. You must have eligibility to work in the United States. This is a 12 month contract assignment. The Client and the role is based in downtown New York, USA. Please send your CV to us in Word format along with your daily rate in USD and your availability.
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Fixed term

Job VacancyJava Developer (1-4 years experience)

LA International Computer Consultants Ltd
Published on

6 months
£300-360
SW1A 2AH, City of Westminster, England, United Kingdom
Java Developer (1-4 years experience) We are looking for a number of Java Developers for a Public Sector client. You will have between 1 to 4 years experience with a keenness to further develop your skills and experience in Java software development. * Programming Languages: Proficiency in Java (often Java 11 or newer) and Object-Oriented Programming (OOP). * Frameworks: Familiarity with the Spring ecosystem, particularly Spring Boot and RESTful web services. * Tools & Version Control: Experience with Git, build tools like Maven or Gradle, and containerization basics like Docker. This is a 6 month contract initially and is on a hybrid working model with two days in the office in London every week. It is an inside IR35 contract starting in early December. Candidates with SC clearance or willing to undergo will be considered. To be considered for the position please send over an updated CV. 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
Fixed term

Job VacancySpécialiste en automatisation des tests – Français ou néerlandais langue maternelle

Gamme solutions
Published on
API REST
Cloud
Confluence

2 years
Brussels, Brussels-Capital, Belgium
Nous recherchons un spécialiste en automatisation des tests, maîtrisant le français ou le néerlandais comme langue maternelle, pour rejoindre notre équipe à Bruxelles. Le consultant sera chargé de piloter les initiatives d'automatisation des tests sur les interfaces utilisateur (UI) et les API, en s'appuyant sur des frameworks modernes et des approches de test assistées par l'intelligence artificielle. Responsabilités principales : - Analyser les critères d'acceptation et élaborer des plans de tests complets, accompagnés d'estimations de charge. - Concevoir, développer et maintenir des scripts de tests automatisés pour les interfaces utilisateur et les API à l'aide de Playwright, TypeScript, Groovy et ReadyAPI. - Exécuter les campagnes de tests automatisés, analyser les résultats et signaler efficacement les anomalies. - Collaborer avec les équipes Agile en participant à la planification des sprints et aux réunions quotidiennes. - Utiliser des techniques de prompting de l'intelligence artificielle pour améliorer la conception des cas de test et la génération des scripts. - Gérer les artefacts de test dans un système de gestion de versions (Git). - Assurer l'intégration des tests automatisés dans les pipelines d'intégration continue (CI).
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Contractor jobSenior Technical Java and C# .net Software Developer

Nexus Jobs Limited
Published on

£450-500
London, England, United Kingdom
Senior Technical Java and C# .net Software Developer We are currently recruiting a Java with C# .net Senior Software Developer – who can be the lead in the team. You must have at least 5 to 7 years proven track record of developing software with Java and C# .net framework coupled with SQL Server. Ability to own and drive forward Omni channel technical solutions and technical architecture from an IT perspective (with direction from Head of IM, Consumer & Brands) o Ownership of FM Digital Technical architecture including the ongoing review of overall FM Omni technical design, structure and future-fit. Project lead on any future re-platforming for FM.com. o To be the technology lead managing the 'day to day' from a technical perspective o Ensure all technical solutions are best-in-class, future-proofed and align to the wider DBIM vision / strategy (e.g. liaise with wider IM on Security, release processes etc) § For example for the FM global single customer view project, the role would provide all technical advice on architecture, user stories, technical specs and DB IM sign-offs Technical lead for all 3rd party solution providers: a) Salesforce b) Booking Bug c) Shopify. Ensure that all OmniChannel products are working together/integrated as needed to allow single consumer tracking and global database. o Technical lead for China Retail Salesforce integration / WeChatify / Social CRM o Data Management Platform (DMP) technical lead o B2B FMJ / FMD Management CRM (India) technical lead to work with DBIM to ensure that project is delivered + technical specification. o Salesforce Service and Marketing Cloud technical lead to take technical ownership for the delivery of new projects / enhancements o Technical leader to create technical architecture documentation, listing the technical stack of the FM.com suite of applications (front and back end). o Technical Leader to highlight components at security, warranty, support, IM policy risk. o Technical Leader to prepare a plan for short and long term to alleviate / eradicate highlighted risks of the technical stacks. o Alignment of FM Omnichannel technical projects / scope to ensure business, cost and technology efficiencies in conjunction with China and US technical leads · Lead development efforts and deliverables on complex solutions within an Agile framework · Provide strong oversight and ownership of coding efforts, and technical solutions · Contribute to the development of system components as needed · Accountable for solving for all technical aspects and delivery · Serve as an escalation point for technical impediments · Accountable for the articulation of the solutions, to various levels · Delegate structured assignments and monitor the progress · Develop and ensure development standards and practices are adhered to by the development team, i.e. DevOps, coding, code management, and documentation · Provide solutions based on strong technical acumen and technical currency in a variety of technologies · Exposure to Mobile and Cloud application platforms · Ensure the technical activities are aligned with approved architectural designs. · Create technical and strategy documents to articulate the solutions and guide implementations as needed to meet requirements. · Develop strong technical application and product knowledge across the Omni channel portfolio. · Challenge our technology partners and vendors to derive maximum value. · Evaluate vendor solutions and work with vendors as necessary · Provide guidance to onshore, offshore, and near shore development service providers as necessary · Provide strong retail business acumen, and customer focus. · Provide governance for troubleshooting complex system issues as necessary · Develop or contribute to business cases, roadmaps and proposals which may include presentations to senior management. · Collaboration with Business, Technical, and Security Architects, to manage risk identification and risk mitigation tactics associated with the designs. Role-specific knowledge: · 5+ years of senior technical lead. · 5+ years of strong hands-on experience as a developer working on JAVA or .NET Framework standards and technologies - C#.NET, ASP.NET, AngularJS, SQLServer, Web Services, Cloud Platforms, AJAX, JQUERY, XML/JSON, HTML, CSS · Retail / digital technology experience is essential · Experience in SalesForce Service and Marketing Clouds · Safety Knowledge: · Provides a consistent outstanding role model in relation to safety practices with a deep understanding of the importance of safety This is a 6 month contract assignment based in the London. Rate is negotiable and will be in the range £450 to £500 per day. Please send your CV to us in Word format along with your daily rate and availability.
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Permanent

Job VacancyBusiness Developer Junior – ESN - Conseil en Ingénierie à Lyon

Deodis
Published on
Business Development

40k-50k €
Lyon, Auvergne-Rhône-Alpes
Business Developer - Junior – ESN - Conseil en Ingénierie à Lyon ………………………… PRESENTATION ENTREPRISE Itamsys est une structure en pleine croissance spécialisée dans le conseil en ingénierie IT et l'intégration de solutions logicielles de Service Management. Nous accompagnons nos clients dans leurs projets à forte valeur ajoutée, en leur proposant les meilleurs experts sur des missions longues et pluriannuelles. Itamsys, c'est avant tout une structure à taille humaine, fondée sur des compétences et des personnalités. Nous sommes convaincus que l'épanouissement passe par l'engagement, la solidarité, la convivialité et les moyens. C'est dans cet esprit que nous accueillons les nouveaux collaborateurs. . DESCRIPTIF DU POSTE Dans le cadre de notre développement, nous recherchons un(e) Ingénieur Commercial Junior / Business Developer pour rejoindre notre Business Unit IT Services et contribuer activement à la croissance de nos activités de conseil en ingénierie. Vos principales responsabilités seront les suivantes : · Prospecter et développer un portefeuille de clients (PME, ETI, Grands Comptes). · Qualifier les besoins clients en expertise et conseil en ingénierie IT. · Collaborer étroitement avec les équipes de recrutement pour identifier et proposer les meilleurs consultants. · Piloter le cycle de vente complet : identification, qualification, proposition, négociation et closing. · Assurer le suivi et la fidélisation de vos clients afin de garantir leur satisfaction et identifier de nouvelles opportunités. · Contribuer activement à la stratégie commerciale et au développement du chiffre d'affaires de la BU IT Services. PROFIL De formation supérieure Bac+5 (école de commerce ou école d'ingénieur), vous justifiez d'une expérience d'au moins 3 ans dans une fonction commerciale B2B, idéalement au sein d'une ESN ou d'une société de conseil. Une bonne compréhension des environnements techniques et des métiers de l'ingénierie IT est nécessaire. Chasseur(se) et entrepreneur(se) dans l'âme, orientés résultats, vous êtes animé(e) par l'envie de générer de la croissance et d'accélérer le développement d'une entreprise en pleine expansion. Vous avez d'excellentes qualités relationnelles et le sens du service client. Enfin, vous avez envie d'évoluer dans une structure à taille réellement humaine où votre engagement et vos réussites seront reconnues. POURQUOI NOUS REJOINDRE ? Nous sommes une ESN agile qui valorise l'autonomie, la collaboration et l'initiative. Notre BU IT Services est en plein essor et au cœur de la stratégie de développement du groupe. Vous aurez la possibilité de collaborer avec des clients variés, sur des projets à forts enjeux technologiques. Nous vous proposons un environnement stimulant et une culture d'entreprise humaine et exigeante, centrée sur la confiance, la transparence et la réussite collective. Si vous vous reconnaissez, venez nous rencontrer ! CONDITIONS DU POSTE Home office 3 journées sur 5. Fixe (40K€) + Variable (10K€) + Intéressement
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Job VacancyDéveloppeur android H/F

█ █ █ ██ █ █
Published on
Android studio
Gradle
Java

Paris, France

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Contractor jobDéveloppeur Mobile Android Kotlin Confirmé Freelance

SURICATE IT
Published on
Android
Coroutines
Jetpack Compose

3 years
400-510 €
Châtillon, Ile-de-France
Mission Développeur Mobile Android Kotlin Confirmé Freelance⏳ Durée : 3 ans 🗓️ Démarrage : ASAP 📍 Lieu : Île-de-France 🎓 Expérience : 4 à 10 ans 🏠 Télétravail : 2 jours par semaine maximum 🏭 Secteur : Grande distribution / E-commerce 💰 TJM : 510 € 🏢 Contexte de la missionIntégration de l'équipe en charge de l'application mobile Android « Picker » d'une enseigne majeure de la grande distribution Application métier utilisée par les préparateurs de commande en magasin pour préparer les commandes Drive Outil au cœur de l'activité e-commerce : sa fiabilité, sa rapidité et son ergonomie impactent directement la productivité des équipes en magasin et la qualité de service client Projet mêlant Build (nouvelles fonctionnalités, modernisation) et Run (maintenance, incidents de production, astreinte) ⚙️ Environnement techniqueLangage : Kotlin, Coroutines UI : Jetpack Compose (migration en cours) Données locales : Room Architecture : Clean Architecture Industrialisation : CI/CD, tests unitaires et d'intégration, revues de code 🛠️ Missions principalesConcevoir et développer de nouvelles fonctionnalités en Kotlin (Coroutines, Jetpack Compose), en lien avec les Product Owners et les équipes métier Participer à la modernisation progressive de l'application : migration vers Compose, Clean Architecture, amélioration de la CI/CD Assurer la maintenance corrective et évolutive de l'application Analyser et résoudre les incidents de production Participer au dispositif d'astreinte pour garantir la continuité de service en magasin Produire un code fiable, maintenable et testé (revues de code, tests unitaires et d'intégration, automatisation) Prendre en compte les contraintes terrain : performance sur terminaux mobiles, connectivité variable, gestion des données locales Appliquer et promouvoir les standards du chapitre Mobile (architecture, performance, sécurité, documentation) et partager ses connaissances au sein de l'équipe
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Permanent

Job VacancySenior Full Stack Developer – Java & Angular

CGI
Published on

United Kingdom
Join CGI as a Senior Full Stack Developer and help shape the digital services that support access to justice across the UK. Working with one of our key UK Government Department clients, you'll take ownership of reusable technology that enables their services to onboard faster, integrate consistently and operate reliably. You'll apply your Java and Angular expertise to solve complex engineering challenges, improve developer experiences and deliver secure, accessible services at scale. You'll have the scope to introduce fresh ideas, explore AI-assisted engineering and influence technical decisions, while working alongside supportive CGI colleagues, architects, product specialists and delivery teams committed to engineering excellence and meaningful public-sector outcomes. 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 hybrid position.
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Contractor jobDéveloppeur FullStack Junior Java/React - Freelance (H/F)

█ █ █ ██ █ █
Published on
DevOps
Java
Kotlin

Paris, France

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Job VacancyRECHERCHE – SENIOR JAVA DEVELOPER | LUXEMBOURG

Gamme solutions
Published on
Apache Kafka
API REST
CI/CD

1 year
Luxembourg
Gamme Solutions recrute un Développeur Java Senior pour une mission auprès de la Banque européenne d'investissement (BEI) au Luxembourg. Localisation : Luxembourg – Présentiel Démarrage : ASAP Expérience : 7 ans minimum Formation : Bac+3 minimum en informatique ou domaine pertinent Durée : À confirmer Disponibilité : Dès que possible Vos missions - Concevoir, développer et maintenir des applications web en Java et React, ainsi que des applications mobiles avec React Native. - Développer un code propre, performant, maintenable et documenté. - Concevoir et intégrer des API REST, des services tiers et des systèmes externes. - Participer aux choix d'architecture et à la définition de la stack technique. - Garantir la sécurité, la robustesse, la scalabilité et les performances des applications. - Collaborer avec les équipes UI/UX pour intégrer les maquettes et les interfaces. - Optimiser les performances applicatives et les échanges avec les bases de données. - Contribuer aux pipelines CI/CD et aux processus de livraison. Compétences techniques requises Backend : - Java J2SE / Java EE - Spring Boot - API REST et API Gateway - Kafka - JBoss - Oracle Database Frontend & Mobile : - JavaScript - React - React Native Outils & DevOps : - GitHub - Nexus - CI/CD Architecture : - Design patterns et frameworks d'architecture - Conception d'applications sécurisées, robustes et évolutives
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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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