Tech Lead Java Backend Senior Software Engineer at Decathlon Digital EN

At Decathlon Digital, we believe technology can push the boundaries of what is possible in sports. Our team of over 5,000 experts is dedicated to building the world's largest digital sports platform, covering everything from product design to supply chain optimization and connected user experiences. We are currently transforming our Customer Growth domain into a global organization, moving toward a headless, event-driven microservices architecture. By joining us, you will help orchestrate transactional communications for hundreds of millions of users across more than 75 countries, all while working toward a more sustainable and inclusive future for the sports industry.

The role

We are looking for a Tech Lead Java Backend Senior Software Engineer to join our team on a full-time, on-site basis in either Amsterdam or Lille. This is a lead-level position where you will play a pivotal role in designing robust, scalable interfaces and reusable components. You will work within a focused team of five, guiding our engineering practices to ensure we deliver high-quality, secure, and data-driven solutions at a global scale.

Core responsibilities

• Take full ownership of the software development lifecycle, from initial prototyping and functional design to coding, testing, and final delivery.
• Foster a collaborative engineering culture by mentoring junior team members and applying rigorous software engineering principles to solve complex problems.
• Analyze existing systems to provide actionable recommendations for improvement while monitoring performance and conducting reliability analysis to ensure our platforms remain resilient.

Skills and experience

To be successful in this role, you should possess a deep technical background and a passion for engineering excellence. We are looking for the following qualifications:

• At least 7 years of professional experience working as a Java developer.
• Extensive knowledge of the Spring Boot framework, containerization with Docker, and the Kafka ecosystem.
• A strong grasp of modern architectural patterns, including microservices, BDD, and TDD.
• Practical experience working with Kubernetes and integrating with Salesforce Marketing Cloud APIs and SDKs.
• A proven ability to coach and mentor other engineers to help them grow and thrive.
• Fluency in English.

Compensation and benefits

We provide a supportive environment designed to help you succeed and grow your career. Our benefits include:

• Access to an international career path with opportunities to share knowledge across our global network.
• A commitment to your professional development through internal and external training, including the possibility of earning certifications in AWS or GCP during your first year.
• The flexibility to choose your own work equipment, whether you prefer a Mac or Windows machine.
• Financial incentives including employee shareholding options as well as monthly and quarterly bonuses.

How to apply

If you are ready to help us transform the digital future of sports, we would love to hear from you. Please submit your application to join our team in Amsterdam or Lille, and we look forward to discussing how your expertise can contribute to our global mission.