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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Job VacancySC cleared React Developer

LA International Computer Consultants Ltd
Published on

3 months
United Kingdom
SC cleared react developer required Pretty much remote Due to the nature and urgency of this post, candidates holding or who have held high level security clearance in the past are most welcome to apply. Please note successful applicants will be required to be security cleared prior to appointment which can take a minimum 10 weeks. 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. An award-winning organisation, having secured the prestigious Queens Award for Enterprise: International Trade over multiple 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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Job VacancySenior Backend Developer Python / Django - CDI F/H

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Django
Python

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Job VacancyDéveloppeur Java Liferay / PHP & WordPress confirmé

TEKTEO
Published on
Ajax
Apache
API REST

4 years
10k-50k €
100-400 €
Fontenay-sous-Bois, Ile-de-France
Contexte de la mission Dans le cadre d'un marché public de maintien en conditions opérationnelles (MCO) au sein d'un organisme public francilien, TEKTEO recherche un développeur Java Liferay et WordPress confirmé. La mission s'inscrit dans un contexte de TMA et de développement applicatif autour de portails numériques à fort enjeu de service public, intégrant notamment des dispositifs d'authentification nationale tels que FranceConnect. L'environnement technique est exigeant, mêlant des technologies Java/JEE, des CMS institutionnels et des infrastructures conteneurisées. Missions & responsabilités Développer et maintenir des modules personnalisés sur les plateformes Liferay et WordPress selon les besoins fonctionnels exprimés Participer à l'évolution des plateformes internes en proposant des améliorations techniques et en contribuant aux arbitrages d'architecture Mettre en place et gérer des environnements Docker pour la conteneurisation et la cohérence des environnements de développement, test et production Assurer le déploiement et la supervision des applications sous Tomcat et Apache, en garantissant leur disponibilité et leurs performances Intégrer des services tiers via API REST et SOAP, notamment le dispositif FranceConnect pour l'authentification des usagers Concevoir et maintenir des transformations de données via XSLT et des schémas XSD dans le cadre d'échanges inter-applicatifs Rédiger la documentation technique (spécifications, guides de déploiement, notes d'évolution) à destination des équipes et de l'acheteur Participer aux revues de code et appliquer les bonnes pratiques de développement sécurisé Collaborer avec les équipes internes via Bitbucket : gestion des branches, pull requests, résolution de conflits Garantir la sécurité, la performance et la conformité des plateformes, en appliquant les recommandations de l'ANSSI et les exigences des marchés publics
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Job VacancyTech lead Java - ALMT

Digistrat consulting
Published on
Agile Scrum
Java

3 years
40k-80k €
450-640 €
Paris, France
🏭 Secteurs stratégiques : Banque d'investissement PAS DE FULL REMOTE NI SOUS TRAITANCE MERCI 🗓 Démarrage : ASAP 💡 Contexte /Objectifs : Application back office généraliste (multiproduits) et local (nombreux sites & utilisateurs dans le monde). L'entité Interface est en charge d'interfacer ce système avec les autres systèmes (booking, paiements, référentiels...) Il s'agit de contribuer aux développements des interfaces. Le code est principalement en C et Java avec un peu de shell (ksh, awk). 💡Les livrables attendus sont : Discussion sur les solutions techniques avec les architectes Orienter les clients et l'équipe vers la solution technique la plus appropriée Pilotage et encadrement des équipes de dev Développement des pipelines streaming pour la production et consommation avec la librairie apache-kafka Accompagnement et coaching des membres de l'équipe sur les bonnes pratiques techniques Porter la démarche d'amélioration continue associée (clean code..) Participer aux développements et à l'implémentation des solutions, notamment sur les phases sensibles du développement (développement web service Rest) Identification des points bloquants et analyser les obstacles de manière proactive afin de remplir le Sprint (gestion des incidents) DevOps : développent de la chaine CI/CD jenkins Revue de code et vérification des métriques (Jenkins, Sonar) pour garantir la qualité de code Organisation des réunions avec l'ensemble des interlocuteurs des applications qui s'interfacent avec le domaine de la garantie Participation à la rédaction des Document Architecture Technique avec les architectes techniques Participation à la roadmap des livraisons à moyen et long terme et négocier, avec le BO Onboarding des nouveaux arrivants
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Job VacancySenior Python Quant Developer - London- Systematic Trading

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Python
SQL

£20k-100k
London, England, United Kingdom

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Job VacancyBusiness Analyst Technique Java / React (H/F)

CAT-AMANIA
Published on
Java
React

Nantes, Pays de la Loire
Catamania recrute un(e) Business Analyst Technique Java / React pour renforcer ses équipes nantaises ! Chez Catamania, nous accompagnons nos clients dans leurs projets de transformation digitale et leurs enjeux technologiques. Nous intervenons auprès de grands acteurs sur des projets IT variés, notamment dans les secteurs de la banque et de l'assurance. Dans le cadre de notre développement, nous recherchons un(e) Business Analyst Technique disposant d'une double compétence fonctionnelle et technique, avec une expérience préalable en développement Java et React. À la croisée des enjeux métiers et techniques, vous serez un interlocuteur privilégié entre les équipes fonctionnelles et les équipes de développement. Vos principales missions seront : Recueillir, analyser et challenger les besoins exprimés par les métiers. Traduire les besoins fonctionnels en spécifications détaillées et exigences techniques. Rédiger les user stories et définir les critères d'acceptation. Animer des ateliers avec les interlocuteurs métiers et techniques. Assurer l'interface entre les équipes métiers, les développeurs et les parties prenantes du projet. Participer aux réflexions de conception fonctionnelle et technique. Analyser les impacts des évolutions sur les applications existantes. Accompagner les équipes de développement tout au long des phases de réalisation. Participer aux phases de recette, de qualification et de validation des livrables.
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Job VacancyChef de projet ERP Technique H/F

S-quaar
Published on
Oracle
Oracle SQL Developer
Project management

50k-55k €
Vannes, Brittany
Lieu : Morbihan (56) Salaire : 50 à 55 K€ + avantages Télétravail : 2 jours par semaine Dans le cadre d'un CDI, nous recherchons pour notre client, éditeur de logiciels reconnu pour ses solutions dédiées à la gestion de production, à la supply chain et à la gestion commerciale, un Chef de Projet ERP Technique orienté Agroalimentaire H/F. L'entreprise accompagne depuis de nombreuses années des industriels dans la mise en œuvre et l'évolution de leurs applications métiers. Afin de soutenir sa croissance, elle souhaite renforcer son équipe projets avec une intégration prévue entre septembre et décembre 2026. VOS MISSIONS: Au sein de l'équipe projets, vous pilotez plusieurs projets de déploiement et d'évolution d'applications métiers, depuis le cadrage jusqu'à la mise en production. Vous assurez la planification, le suivi des charges, des délais et de la qualité des projets, animez les équipes internes et êtes l'interlocuteur privilégié de vos clients. Vous participez également aux phases de chiffrage, à la définition des solutions techniques et fonctionnelles ainsi qu'au suivi des risques et de la satisfaction client. Grâce à votre bagage technique, vous intervenez également sur le paramétrage des solutions et participez ponctuellement aux développements réalisés dans le cadre des projets. Bien sûr, des déplacements sont à prévoir, notamment dans le cadre de la mise en production des solutions chez les clients. Environnement technique: Oracle Database, SQL / PL/SQL, Oracle APEX, SQL Server, C#, C++, .NET, ERP, GPAO, GMAO, WMS, Applications métiers industrielles et commerciales VOUS: Issu(e) d'une formation supérieure en informatique et d'une expérience au sein d'une équipe projet informatiques en environnement industriel Agroalimentaire. Vous maîtrisez le développement autour d'Oracle (SQL/PLSQL) et/ou SQL Server et avez évolué sur des projets impliquant des ERP, GPAO, GMAO, WMS ou des applications métiers. Une connaissance d'Oracle APEX constitue un véritable atout. Autonome, organisé et rigoureux, vous appréciez autant le pilotage de projets que les échanges avec les utilisateurs et les équipes techniques. Vous aimez comprendre les métiers de vos clients et proposer des solutions adaptées. Un niveau d'anglais technique, à l'écrit comme à l'oral, est attendu. PROCESS : Après un premier échange avec notre équipe, vous rencontrerez : - Un Responsable du site - Un Manager opérationnel Décision rapide. Envoyez-nous votre CV et si votre profil correspond, vous serez contacté(e) rapidement par un membre de l'équipe. Au plaisir d'échanger autour de votre projet, S-quaar
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Job VacancySoftware Engineer with C# or Java

Nexus Jobs Limited
Published on

Livingston, New Jersey, United States of America
Software Engineer with C# or Java – Livingston NJ USA A bachelor's degree in computer science, software engineering, or a related field is required. Must have at least 4 to 6 years of progressively complex experience in a directly related area, during which both professional and technical capabilities have been clearly demonstrated. Coupled with at least 4 years of design and development. experience with various relevant Microsoft platforms, tools, technologies, patterns, and techniques related to Azure tools, integration, and data is required. Experience with industry/domains like pharmaceutical, finance, HR, sales, marketing, and manufacturing is highly preferred. Experience with healthcare industry regulations, data security and compliance standards (e.g. GDPR), and EDI standards (e.g. FHIR, HL7), etc. is very valuable. Developer certifications of Azure and/or Microsoft suite technologies is a big plus. Technical skills: In-depth knowledge and thorough experience in programming, configuring, and/or integrating using/with Azure integration tools like Data factory, LogicApps, Functions, API Management, Data catalog, WebApps, Integration service environment, configuring monitoring & diagnostics, etc., and connectivity & security configurations (certificates, encryptions, etc.). In-depth knowledge and experience with Azure data storage (SQL Server, Data lake, Synapse, etc.) & access tools, APIs, cloud connectivity, and ETL processes. Knowledge and some experience of MS Office/MS Office 365 suite, SharePoint Online, Power Apps, GitHub, MS Teams, etc. In-depth knowledge & experience using Visual Studio, with one of the programming languages: C#/Java/JavaScript/Python, and PowerShell. In-depth knowledge and thorough experience of using Serverless, SOAP, XML, REST, JSON, EDI, XSLT, Async/Sync, Request/Response, Service Bus, Publish/Subscribe, Batch/Real-time, Scheduling, Event triggers, etc. In-depth knowledge and development experience using MS SQL Server (SSIS, T-SQL, Stored procedures, Functions, Views, Queries, Datatype conversions, etc.). Thorough understanding of the fundamental architecture of the cloud and on-prem MSFT Suite (e.g. Share point) and Integration platforms architecture (e.g. BizTalk, MuleSoft, or similar), etc., and version control methods. Solid fundamentals and thorough understanding of exception handling principles and production/operational support solutions (alerts, dashboards, runbooks, etc.) Experience working with Azure DevOps and CI/CD pipeline. Experience working with APIs, Postman/SOAPUI tools, MS D365, ServiceNow, Azure Analytics tools, Azure Data lake, Azure Synapse, Azure BYOD & Data verse, Informatica, BI tools, etc. is a big plus. General business skills: Clear communication to translate and explain business requirements to technology & vice-versa. Analytical & methodical mindset with a problem-solving attitude is extremely important for the success of this role. Clear, concise written, verbal, and presentation skills. Must be a team player who can earn a team's respect quickly. Ability to take initiative and be innovative. Ability to complete projects and achieve results in an ambiguous work environment. The role will be based in Livingston NJ USA. Salary will be in the range $80K to £120K. Please do send your CV to us in Word format along with your salary and availability.
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Job VacancySenior Java Engineer

CGI
Published on

Swansea, Wales, United Kingdom
At CGI, we're helping transform public services through innovative, secure and scalable digital solutions that make a meaningful difference to communities across the UK. As a Senior Java Software Engineer, you'll play a key role in delivering cloud-native applications that improve services and create lasting value for our clients. You'll have the opportunity to take ownership of complex engineering challenges, bring fresh ideas to modern technology solutions and help shape technical excellence across our teams. Working alongside talented professionals in a collaborative, supportive environment, you'll be empowered to innovate, share your expertise and develop your career while contributing to high-impact public sector programmes. 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 but will require working on client site in Swansea 3 days per week.
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Job VacancyTech Lead Java

OCSI
Published on
Angular
Java
Spring

Nantes, Pays de la Loire
Contexte Vous intégrez une feature team agile (Scrum) d'une quinzaine de collaborateurs, développeurs et Business Analysts, répartie entre la France et l'Inde. Elle intervient sur un parc d'une dizaine d'applications, dont une partie encore en legacy (Struts 1, Java 8), avec pour cible une stack moderne : Java 21, Angular 15+, Spring Boot, Docker et Kubernetes. Un programme pluriannuel de rationalisation du parc est en cours : refonte complète d'applications historiques vers les nouveaux standards, et replatforming du reste. Vos missions Développer en back (Java, Spring Boot, services REST) et en front (Angular) sur les projets de refonte Concevoir et mettre en œuvre des architectures microservices et event-driven Assurer la maintenance évolutive et le maintien en conditions opérationnelles des applications existantes Participer au support de production Accompagner la conduite du changement autour des bonnes pratiques de développement (Software Craftsmanship) et aider les équipes à adopter les nouveaux standards Mettre en place des livraisons automatisées (CI/CD) Rédiger la documentation technique Répartition indicative de l'activité Majoritairement du développement en mode projet (refonte), complété par de la maintenance évolutive sur l'existant et du support/MCO. Livrables Expertise et support technique, livraisons automatisées, documentation technique.
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Job VacancySQL Server Developer with SSIS and SSRS

Nexus Jobs Limited
Published on

£60k-75k
London, England, United Kingdom
SQL Server Database Engineer with SSIS Our Client is bank based in Central London – who are looking to recruit Database Engineer with at least 5 to 7 years sold expertise of working SQL Server SSIS and SSRS. Responsible for the development and delivery of pipelines (collect, validate and prepare high quality data) to automate and streamline processes required by different departments. Support existing SSIS ETLs (overnight and intraday), proactively fine-tune and enhance existing codes to increase robustness and error monitoring. Support the internal IT department with changes and upgrades to software platforms. Convert legacy Hyperion reports to SSRS. Software Development: Analysis of issues pertaining to problems or errors raised by in-house systems, i.e. CORE, SharePoint interface, Equation end of day cycle. Understanding business requirements in order to develop and deliver appropriate solutions based on system definition documents. Proficiency in advanced 4GL programming languages and able to apply to the fully development life-cycle. Database Support To build data pipelines within the SQL environment in SSIS packages, where required, introduce new field and data types for new information to be collated in the CORE environment. To build tabular models (SSAS) for different business units. To build reports based on business requirements using SQL SSRS. To integrate with all the Bank's sub-systems using data abstraction and connectivity layers, i.e. ODBC, ADO.net. Ensure that the environment is running optimally and with high standard house-keeping procedures. Sharepoint Integration: To integrate the SharePoint environment and Forms with Equation system to introduce automation of processes thereby eliminating the need for duplicate entry. To utilise web services to integrate from cutting edge technology into legacy systems such as Equation. End of Day Cycle: To provide second and third level support for in-house programmes during the end of day cycle. To be able to analyse and rectify any problems raised in an independent and team scenario. To take ownership of a problem and deliver a solution in a timely manner. Provide out of office hours support. Risk & Regulatory Duties Maintain knowledge of all applicable regulatory requirements including the Bank's Risk and Compliance policies and procedures and adhere to these to avoid exposing the Bank to undue risk. Report policy/procedure breaches and areas of potential non-compliance and suspicions promptly upon identification in accordance with the Bank's Risk and Compliance policies. Accurately execute all controls within own area to minimise risk of policy, procedure, and/or regulatory breaches. Identify new risks/control gaps within own area and escalate accordingly to your Line Manager and/or Head of Department. Training & Competence Complete all annual mandatory regulatory refresher training as per the Bank's training plans and deadlines. Proactively seek to complete recommended technical and behavioural competencies training required for your role. Act in accordance with the FCA/PRA Code of Conduct. Fulfil all prescribed business continuity requirements as set out in the organisational or departmental specific plans or as instructed by the Line Manager/Head of Department. Qualifications/Experience Degree level qualified or equivalent. MS SQL stack (SSIS, SSAS, SSRS) to high level of proficiency - Essential C# Programming / JavaScript programming - Desirable Knowledge and Skills Software analysis and design good practice Dimensional modelling, Entity Relationship modelling, Normalised modelling. Data warehouse design concepts, (Inmon, Kimball) The position is based in Central and you will be required to be in the office for 3 days a week. Please note the Client does NOT provide sponsorship. The salary for this position is in the range £60K – £75K. Please do send your CV to us in Word format along with your salary 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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