Full Stack Java Software Engineer (m/f) 100%

• 20 juillet 2026 • 100% • Durée indéterminée • Rue de la Gare 27, 2605 Sonceboz Sontex is a prosperous and rapidly expanding SME active in the development and manufacture of systems intended for measuring thermal energy, with its headquarters located in the Bienne region. For 36 years, we have been developing, producing, and distributing precise devices used to record energy consumption. We help our customers to use energy resources efficiently and to save them. Our national and international clientele is active in the field of building technology and automation. To strengthen the Software team, we are looking for a Full Stack Java Software Engineer (m/f) 100% Your main tasks • Design and develop Windows, Android and Web applications as well as OSGi libraries and components in Java • Participate in the entire software development lifecycle, from requirements analysis to production deployment • Guarantee code quality by applying development best practices, modern methods, and test automation • Collaborate closely with external partners, Product Management, the Hardware/Firmware teams, sales teams, and customers • Contribute to the planning, development, and deployment of new software versions • Provide level 3 technical support for software solutions • Write, maintain, and evolve technical documentation related to software developments Your profile • Bachelor or Master in computer science/ engineering or training deemed equivalent • Minimum 5 years of experience in software development with Java • Solid experience in developing Java web applications based on a microservices architecture • Experience in developing user interfaces for Windows, Android or Web applications • Good mastery of software development practices and quality standards • Ability to work independently, in a structured and solution-oriented manner • Team spirit, good communication skills, and ability to collaborate with diverse interlocutors • Very good command of French and English (minimum B2 level); basic knowledge of German We offer you • A hybrid working model with great flexibility • A corporate culture based on trust, integrity, competence, and personal responsibility. • Support in professional development. • A multicultural and international working environment as well as a collegial team. • The development of innovative products that allow energy resources to be used efficiently. If you wish to receive further information, you can contact Mr. Patrick Bucher, CTO at 41 32 488 30 00 Have we aroused your interest? We look forward to receiving your application accompanied by the complete documents exclusively by e-mail to the following address: Write an email Sontex SA, Rue de la Gare 27, 2605 Sonceboz, Suisse. www.sontex.ch