Senior Java Developer Freelance 100% On-Site Major European Agency H/F - Arbalett

What they needSenior Java Developer Long-term freelance contract 100% on-site Strasbourg Major European agency Competitive remunerationWe are actively seeking a Senior Java Developer for a long-term freelance contract within a major European agency.Based in Strasbourg, you will join an international technical team and contribute to ambitious, high-stakes projects in an evolving technological environment that values technical excellence, rigour, and knowledge sharing.Your responsibilities:Design, develop, and maintain robust software components in Java, based on defined technical specifications and ensuring their documentation.Ensure the integration of technological components with one another and with third-party systems, while maintaining the consistency and reliability of the application architecture.Contribute to code quality by actively participating in code reviews, applying development best practices, and strengthening application security.Design and execute unit and integration tests, including through automation scripts, to ensure the reliability of deliverables in development environments.Support and mentor junior developers within the team, fostering technical cohesion and knowledge transfer.Contribute to the preparation and updating of technical documentation (components, installation and operational manuals) and provide support during deployment and configuration phases.Your profile:Minimum 10 years of experience in IT, including at least 5 years in software and application development.Strong proficiency in Java and associated technologies: Spring Boot, Kafka / IBM Event Stream, PostgreSQL, Istio.Good knowledge of multi-tier web environments, web services, and APIs.Experience with the following is a plus: Magnolia CMS, IBM Sterling ITX, ForgeRock / OpenID / OAuth 2.0, API Connect, IBM MQ Advanced.Minimum 1 year of experience with CASE tools or equivalent for modelling and development.Comfortable working in an international and multicultural environment, with the ability to adapt quickly to technological developments.Good level of English (minimum B2).Our offer:A long-term freelance contract, 100% on-site, within an international institutional environment.Ambitious projects with high strategic impact, in a stimulating and constantly evolving technological context.A multicultural and innovative working environment, with high-level technical teams.Competitive remuneration, commensurate with your expertise and responsibilities.Are you interested in this assignment? Don't hesitate to apply, as this advert will soon disappear! Our search is urgent.

Profile wantedMinimum 10 years of experience in IT, including at least 5 years in software and application development.Strong proficiency in Java and associated technologies: Spring Boot, Kafka / IBM Event Stream, PostgreSQL, Istio.Good knowledge of multi-tier web environments, web services, and APIs.Experience with the following is a plus: Magnolia CMS, IBM Sterling ITX, ForgeRock / OpenID / OAuth 2.0, API Connect, IBM MQ Advanced.Minimum 1 year of experience with CASE tools or equivalent for modelling and development.Comfortable working in an international and multicultural environment, with the ability to adapt quickly to technological developments.Good level of English (minimum B2).