Find your next tech and IT Job or contract Java Developer (Kotlin, Groovy...)

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 Développeur Android H/F à Lille, France. Contexte : Au sein de l'équipe application, intervention sur l'application mobile grand public utilisée par plus de 550 000 utilisateurs actifs, couvrant l'ensemble du parcours client : courses en ligne, Drive, fidélité et expérience en magasin. Renforcement de l'équipe Android dans un contexte de développement et d'évolution continue de l'application, au sein d'une équipe mobile en ScrumBan. Les missions attendues par le Développeur Android H/F : Descriptif : Développer et faire évoluer l'application Android en Kotlin / Jetpack Compose. Concevoir et intégrer de nouvelles fonctionnalités en collaboration avec le PO et les équipes iOS / Backend. Participer à la conception technique et être force de proposition sur les choix fonctionnels et techniques. Intégrer et exploiter les services Firebase et les composants KMM. Développer les tests unitaires et contribuer à la qualité et à la fiabilité de l'application. Veiller au respect des bonnes pratiques Android, des guidelines UX/UI et des enjeux d'accessibilité. Participer aux revues de code, à la veille technologique et à l'amélioration continue des pratiques de développement. Utiliser GitLab pour la gestion du code et le suivi du cycle de développement.

Kajenthi@RED Global - Look for a Senior Java developer - Bucharest (Roumania) - Hybrid - Freelance - 6 months + RED Global is looking for a Senior Java Developer - Full-stack, in Bucharest, 2 days on site per week. You'll have to design, develop, integrate and maintain enterprise software solutions within a complex, multi-tier platform. Key responsibilities Analyse functional and technical specifications and translate them into maintainable software solutions. Design, develop, test, integrate and maintain Java-based application components. Develop and integrate web services and APIs for enterprise and multi-tier applications. Contribute to software architecture, technical design and component modelling activities. Apply sound object-oriented design principles, coding standards and reusable development patterns. Participate in code reviews, defect resolution and continuous improvement of software quality. Support application integration and collaborate with testing teams throughout the delivery lifecycle. Produce and maintain technical specifications, design documentation and development records. Contribute actively to Agile ceremonies, estimations and iterative delivery planning. Work independently while communicating clearly with technical and non-technical stakeholders. Experience and skills What you will bring to the role Minimum 10 years of professional IT experience. At least 5 years of hands-on software and application development experience. Expert-level Java development skills in complex production environments. Strong experience developing enterprise web applications and multi-tier or n-tier systems. Proven experience designing and developing web services and APIs. Good practical knowledge of software architecture and technical design. Experience using modelling or CASE tools, such as UML-based design environments. Experience working with Agile software development methodologies. Technical focus Java development Enterprise application Web services & APIs Software architecture & design Modelling / CASE UML or comparable environments tools Delivery methodology Agile If you're interested by this Freelance role, please send me your CV at

Liferay with Java Developer - Surrey We are looking to recruit a Java Developer with at least 2 to 5 years solid development expertise using Java Enterprise J2EE with Liferay. You will have experience of Designing & Developing Java Enterprise applications – including around 3 years solely in Java Enterprise Portals – like Liferay & WebSphere Portal. You should have experience of working within a team have the ability to lead teams of varying sizes & successfully delivered projects on/before deadline without losing focus on Quality. Experienced in interacting and communicating effectively with Clients and other team members. Executed number of projects using Agile philosophy. This is a 6 month contract assignment based in Surrey. The rate is negotiable. Send your CV to us in MS Word format.

Liferay with Java Developer - Surrey We are looking to recruit a Java Developer with at least 2 to 5 years solid development expertise using Java Enterprise J2EE with Liferay. You will have experience of Designing & Developing Java Enterprise applications – including around 3 years solely in Java Enterprise Portals – like Liferay & WebSphere Portal. You should have experience of working within a team have the ability to lead teams of varying sizes & successfully delivered projects on/before deadline without losing focus on Quality. Experienced in interacting and communicating effectively with Clients and other team members. Executed number of projects using Agile philosophy. This is a permanent position based in Surrey. The salary for this role will be in the range £45K - £60K + benefits. Send your CV to us in MS Word format.

Senior Fullstack Software Developer Our Client is a relatively young company but growing quickly in the world of financial technology solutions. They are now looking to recruit a Senior Fullstack Software Developer with at least 5 plus years expertise. The ideal candidate will have great problem solving and communication skills and be comfortable with fast paced design, development and deployment working in an agile environment. Worked extensively on iOS, Android & web apps and built complex, responsive and sophisticated apps. We are looking for a smart, innovative technical lead to help us coordinate and drive a project of building a next-gen high-performance app. Duties and Responsibilities: Lead the technical arm of the team in a fast iteration cycles, with tight deadlines using an agile/scrum methodology, while ensuring applications meet quality standards Coordinate configuring, coding, developing, and documenting software specifications throughout the project life cycle (concept, design, build, deploy, test and release to app store; as well as post launch operations such as support, troubleshoot, improvements etc.) Participate in technical, design, and architecture discussions with external partners from the finance sector Collaborate with cross-functional teams to determine business requirements, as well as design, develop, and test application code to ensure that business requirements are met Drive a best practices approach to the continuous improvement of products, processes, and tools. Identify and correct bottlenecks and fix bugs for all production issues Liaise with product development team to plan new features Research and suggest new mobile products, applications and protocol Qualifications / Experience: Highly proficient in React, Swift or Objective C, Java for mobile development; Rails, nodejs and Angular for web development 5 to 7 years of extensive native mobile app (iOS & Android) and web app development experience Demonstrable portfolio of released web apps, mobile applications on the App store or the Android market Experience with multi-threaded client software, client-server architecture and scaling systems Experienced in implementation of Methodologies and the Software Development Life-cycle (Agile) Fully equipped with development Tools (Xcode, Android Studio, Eclipse) and source control tools (Git, Stash) Ability to perform in a team environment Knowledge and experience with the Financial Information Exchange FIX Protocol would be handy as well as working with trading or currency exchange technology. This position is based in the City London. Salary will be circa £60K - £75K. Please send your CV in Word format along with salary and availability.

Je recherche un développeur JAVA Kotlin (Ktor) sénior >6 ans d'xp Nous recherchons un profil techinque capable de challenger le produit, force de proposition, très bon communiquant type Product engineer Capacité à travailler en équipe, faire du pair programming , mob programming, reviews Stack : aws / kubernetes/ terraform / event sourcing Mission full remote en europe 1 an renouvelable Anglais courant très important, francais pas nécessaire Your impact Technical leadership and development • Own and deliver features from end to end, including frontend, backend and infrastructure • Lead the architecture and development of EPI's cloud-based microservices, focusing on scalability, performance, and business alignment • Set high code quality standards, employ best practices for maintainable code, and oversee end-to-end feature development for timely delivery and stakeholder alignment Strategic decision-making • Oversee the platform's development with strategic decisions, considering current needs and growth expectations • Drive innovation within your team to solve complex problems and improve efficiency Cross collaboration • Collaborate closely with cross-functional teams like product management & design, web development, and QA to ensure smooth development and excellent products ? Technology stack • Kotlin, Ktor, MongoDB, OpenAPI, Docker • AWS, Event Sourcing, Kubernetes, Kotest • Yarn, Nextjs , MUI, TypeScript ? To succeed, you should meet at least 70% of these requirements • +7 years of professional experience in software development, including at least 5 years of back-end development and 2 years of front-end experience • Fluent in English (CEFR C1 or C2); German, Dutch, French, or other European languages are a plus • Thrive in a remote-first, multicultural environment • Proven experience in building scalable system architectures and familiarity with modern design patterns and REST API design, coupled with a dedication to clear technical documentation • Proficiency in core backend technologies like Kotlin, Ktor, Docker, Kubernetes, MongoDB and Kafka • Ability to recognize and implement effective automated tests at suitable levels of involvement • Experience in implementing UI/UX that meets user needs • Experienced in Agile methodologies, adaptable to changing project needs and timelines ? Turn back if … • You're not passionate about web technologies or not willing to work in a fully remote environment • You are not interested in delivering feature from end to end

Développeur Mobile Android KMP MONTPELLIER 3 jours de présentiel / 2 jours de TT ASAP 2 jours TT - Montpellier 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 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 MultiPlaftorme - 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 personnelle ou professionnelle en KMP et pouvoir comprendre rapidement notre architecture. Connaissance environnement projet iOS dans un contexte KMP Sénoir (+7 ans)

Java Developer with SQL Server – Central London Our Client is looking to recruit a seasoned professional with 5 plus years experience in developing with Java as a backend Developer with SQL Server. You will have a good understanding of Data Structures and Algorithms. In addition to the Java and SQL Server development skills you should working knowledge of Spring, working with large code base, SQL, Unix etc. In addition you will have solid problem solving and algorithm skills. Excellent communication skills both spoken and written. This is a 6 months assignment based in Central London. The rate is negotiable. Please send your CV in Word format along with daily rate and availability.

Contexte du poste Rejoignez l'aventure d'un leader des télécommunications, basé au cœur de Paris, engagé dans un projet d'envergure nationale visant à offrir un accès internet ultra-rapide à des millions de foyers. Intégrez le Département des Systèmes d'Information Fibre Optique où l'équipe App, composée d'environ 30 passionnés de technologie, conçoit et maintient des outils essentiels au déploiement et à la maintenance du réseau fibre. Avec une dizaine d'applications cruciales pour nos équipes terrain et prestataires, ce département est en pleine expansion afin de soutenir notre mission ambitieuse. Nous recherchons un Lead Développeur Android pour renforcer notre capacité d'innovation et optimiser l'efficacité de nos opérations. Missions Missions principales - Garantir la qualité et la cohérence du code Android sous Kotlin en respectant des architectures Clean. - Être le référent technique pour les développeurs Android, en les guidant au quotidien. - Organiser et animer des sessions de formation sur les meilleures pratiques Android. - Prioriser et répartir les demandes de développement en collaboration avec les parties prenantes. - Valider techniquement les développements avant leur mise en production Missions annexes - Participer aux échanges avec les équipes Produit, Design, et Backend. - Identifier et résoudre des problématiques techniques complexes. - Rester informé des dernières évolutions et tendances en développement Android. Stack technique À maîtriser - Langages : Kotlin, JSON - UI : Jetpack Compose - Architecture : MVVM, Clean Architecture - Injection de dépendances : Dagger Hilt - Base de données : Room - API & Réseau : Retrofit Environnement technique global - Design system : Material 3 Expressive - Librairies : Coil, ML Kit - Outils de build : Gradle, DSL - Gestion de versions : Git

Contexte Nous recherchons un développeur / une développeuse Fullstack pour accompagner l'équipe CRO dans la gestion de sa plateforme d'AB Tests et la mise en place de feature flags. Description de la mission Dans un contexte d'équipe agile et d'applications à fort trafic, le développeur Fullstack conçoit, développe, déploie et maintient des fonctionnalités afin de répondre aux exigences fonctionnelles exprimées dans le cadre de la conception d'expérimentations (A/B Tests). Le développeur Fullstack est capable d'intervenir sur la partie front, sur la partie back des applications, mais aussi sur la partie CI/CD. Il maîtrise les langages de développement front et back, ainsi que les frameworks les plus utilisés et les bonnes pratiques de développement de ces deux parties. Livrables Développement d'AB Tests client-side Mise en place de feature flags et accompagnement à la montée en compétence des autres développeurs Développement de code et de tests : Tests unitaires Tests d'intégration Tests end-to-end Revues de code Réalisation et rédaction d'études de conception technique Analyse d'anomalies et support aux problèmes d'exploitation Capacité à investiguer la source d'un bug Contribution au respect des critères d'acceptance d'une release Participation aux cérémonies agiles : Daily meeting Estimation des tâches Rétrospective d'équipe Participation à la qualité, la résilience et la sécurité de l'application Compétences techniques Développement Flutter TypeScript & NodeJS ReactJS NodeJS pkg Transmission sur port série Cloud & Infrastructure AWS : Lambda DynamoDB Aurora PostgreSQL API Gateway Kubernetes SQS Terraform CI/CD & Versioning Git GitLab Jenkins Tests & Performance RobotFramework Gatling Architecture & Méthodologies APIs REST & spécifications OpenAPI DDD Architecture hexagonale Tests mocks BDD Expérimentation Feature flagging Développement d'AB Tests Qualités recherchées 4-6 ans d'expérience Autonomie Force de proposition Bonne capacité à travailler en équipe Persévérance et capacité à investiguer la source d'un bug Responsabilité et souci de l'impact de ses développements Capacité d'auto-critique

🏭 Secteurs stratégiques : Banque d'investissement PAS DE FULL REMOTE NI SOUS TRAITANCE MERCI 🗓 Démarrage : ASAP 💡 Contexte /Objectifs : Le programme sur lequel vous allez travailler permet de mettre à disposition des outils de pilotage de l'activité des financements structurés au travers de dashboard (tableaux et graphiques), exports Excel et workflow de saisie/validation. Dans ce cadre la prestation consiste à contribuer à/au(x) : Développements de la plate-forme web du programme Environnement technique : CRAFT- Techno : Java (17) Sprint boot (3) Angular 15 Oracle & PostGreSQL Architecture micro-service et hexagonale CI/CD : GIT / Jenkins / Docker/Kubernetes Monitoring : ELK Agile SCRUM Environnement anglophone Livrables attendus Backlog de sprint du programme en accord avec les priorités du projet et la roadmap du programme

Optimizely Developer Spalding, Lincolnshire £50,000 - £60,000 + Holiday + Pension Are you an experienced Optimizely Developer looking to join a growing digital transformation consultancy where you will work on enterprise-level websites, cutting-edge digital platforms and customer experience solutions for a diverse portfolio of clients while further developing your expertise with modern Microsoft technologies? This is an excellent opportunity to join an award-winning technology consultancy that delivers innovative software solutions to organisations across the UK. You'll play a key role in developing, customising and maintaining enterprise CMS solutions while collaborating with Business Analysts, Designers, Project Managers and fellow Developers. In this hands-on role, you'll be involved throughout the full software development lifecycle, from technical design and estimation through to development, deployment and ongoing support. You'll work with technologies including C#, .NET, ASP.NET Core, SQL Server and Optimizely CMS to deliver scalable, secure and high-performing digital platforms. The ideal candidate will have strong commercial experience with Optimizely CMS, C# and .NET development, along with experience building CMS-driven web applications and integrating third-party systems. Experience with Azure, Umbraco or modern headless architectures would be advantageous. The Role: Design, develop and maintain websites and applications using Optimizely CMS Develop scalable solutions using C#, .NET, ASP.NET Core and SQL Server Build integrations with third-party APIs, enterprise systems and cloud services Participate in technical design, estimation and solution architecture discussions Support testing, deployments, documentation and ongoing platform enhancements The Person: Commercial experience with Optimizely CMS, Episerver or Optimizely DXP Strong C# and .NET development background Experience with ASP.NET Core, MVC and REST APIs Knowledge of HTML, CSS, JavaScript and responsive web development Understanding of CI/CD, source control and software development best practices Strong problem-solving and stakeholder communication skills Reference Number: BBBH279251 Rise Technical Recruitment Ltd acts an employment agency for permanent roles and an employment business for temporary roles. The salary advertised is the bracket available for this position. The actual salary paid will be dependent on your level of experience, qualifications and skill set and will be decided by our client, the employer. Rise are not responsible or liable for any hiring decisions made by the end client. We are an equal opportunities company and welcome applications from all suitable candidates.

At CGI, you'll help deliver secure, high-impact solutions that enable government agencies to tackle some of their most complex and mission-critical challenges. As a Python Software Engineer, you'll work with modern technologies to build secure, scalable and reliable systems that drive real-world outcomes. You'll collaborate with talented colleagues, contribute innovative ideas, and take ownership of technical solutions in an environment that values continuous learning, creativity and professional growth. If you're passionate about solving complex engineering problems and want to make a meaningful impact while developing your career, CGI offers the opportunity to do just that. 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 role is required on a secure site.

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 Développeur Mobile Expérimenté H/F à Lille, France. Contexte : Nous recherchons un(e) Développeur(se) justifiant d'une solide expérience (5 à 6 ans). L'objectif de ce poste n'est pas d'assumer le rôle de Tech Lead, mais d'agir comme un véritable pilier technique et bienveillant au sein de l'équipe. Vous travaillerez en étroite collaboration avec le nouveau Tech Lead pour l'aider dans les aspects de conception technique, challenger ses idées de manière constructive, et l'accompagner dans ses réflexions afin de le faire grandir sereinement dans ce nouveau rôle. Vous serez intégré(e) dans une équipe pluridisciplinaire de 7 personnes (1 PO, 1 QA, 1 UX, 2 Data Ingénieurs, 1 Tech Lead / Dev et 1 Dev - vous). Les missions attendues par le Développeur Mobile Expérimenté H/F : Développer et maintenir les fonctionnalités de notre application mobile Co-définir l'architecture logicielle en binôme avec le Tech Lead, dans une posture d'accompagnement Partager votre expérience (bonnes pratiques, patterns, qualité de code) pour tirer l'équipe vers le haut. Participer activement aux rituels de l'équipe dans un esprit de cohésion. Ce défi nécessite un profil mature, capable de mettre son égo de côté au profit exclusif de la réussite du collectif et de l'évolution de ses pairs.