Senior Java Developer

ppWe are convinced that outside is exciting, relaxing and inspiring. It's versatile, for some it is a place to relax, for others it is the ultimate challenge. A place to enjoy and where big and small moments come together. It's a place to be discovered or to be recognized. But the outdoors can also be treacherous and unpredictable. Weather and terrain can surprise you. Our mission is to enable all people to spend inspiring and epic moments outside. /p pYonderland is a European group of premium brands and retail concepts focused on outdoor. Including A.
S. Adventure, Juttu, Bever, Cotswold, Snow+Rock, Runnersneed and Ayacucho. Yonderland runs over 190 shops in Belgium, Luxembourg, France, Great-Britain and The Netherlands and resides in Belgium. /p ul liDesign and implement complex backend services, APIs, and integrations in line with our architecture standards, proposing and defending options for microservices and domain boundaries. /li liLead and own key backend features and cross-team initiatives end-to-end, from design through production, ensuring operational readiness. /li liSet and uphold code-quality expectations, championing clean code, test coverage, and performance across the services we own. /li liApply secure-by-design and privacy-by-design principles, and ensure logging, monitoring, and alerting are fit for production and compliance. /li liDrive refactoring, technical debt reduction, and incremental modernisation, and support incident diagnosis and root-cause follow-up. /li liMentor mid-level and junior backend engineers through code reviews, pairing, and design discussions, acting as a technical role model. /li liCollaborate closely with frontend, QA, DevOps, data, and product teams, translating technical trade-offs into clear options for stakeholders. /li liBring hands-on AI knowledge to the role: integrating LLM APIs and AI inference endpoints into backend services, applying responsible, GDPR-compliant data handling, and using AI coding assistants to boost delivery quality and velocity. /li /ul h3Profile /h3 ul li5-7+ years of backend software development experience. /li liDeep expertise with Java frameworks such as Spring Boot, Spring MVC, Hibernate, and other relevant libraries. /li liExtensive experience with relational databases (e.g., PostgreSQL, MySQL) and NoSQL databases (e.g., MongoDB, Cassandra). Proficiency in database design, optimization, and management. /li liIn-depth understanding of web technologies, HTTP and REST. Understanding of web security principles. /li liProficiency with development environments (e.g., IntelliJ IDEA), build tools (e.g., Maven), and version control systems (e.g., Bitbucket). /li liAdvanced knowledge in designing and maintaining APIs and microservices architecture. Knowledge of setting up asynchronous communication in AWS. /li liProficiency with testing frameworks like JUnit, Mockito, and integration testing tools. /li liFamiliarity with containerization (e.g., Docker) in a cloud native way (AWS EC2). /li liProven experience in building scalable systems, performance tuning, and managing large-scale distributed systems. /li liHands-on experience integrating LLM APIs and AI inference endpoints, including prompt design and RAG/vector database patterns. /li liExceptional problem-solving abilities to diagnose complex issues and implement effective solutions. /li liExcellent communication skills to articulate technical concepts to non-technical stakeholders and collaborate with cross-functional teams. /li liAbility to mentor and coach junior and mid-level developers, fostering a collaborative and growth-oriented environment. /li liStrategic mindset to align technical decisions with business goals and long-term vision. /li /ul h3We offer /h3 ul liA versatile position with pronounced responsibility and variety in a strongly growing and innovative market leader, operating internationally with headquarters in Hoboken (Antwerp) and offices in the Netherlands and the UK. /li liThe IT organisation is a driving force to support the strong growth and you will help shape it. /li liAn open corporate culture where you can be yourself. /li liYou can count on a competitive gross monthly salary in proportion to your experience including the possibility of a company car supplemented by numerous fringe benefits such as meal vouchers, group and hospitalisation insurance, additional holidays, staff discount. /li liAdventurous colleagues in an international and diverse team. /li liThe opportunity to participate in our bootcamps (showers available) and various team events twice a week during the lunch break. /li liWe welcome applications from everyone, regardless of age, background, gender, sexual orientation, disability, or belief. Your talent is what matters most. /li /ul /p