Kotlin Engineer

Join our Cybersecurity Team and play a critical role in safeguarding the largest online retailer in the Netherlands. You will work alongside a passionate and experienced group of security professionals to build secure, scalable, and resilient software solutions that protect our customers, partners, and assets. This is not just another engineering role - it’s a chance to make a real difference in a company where security is a top priority. What You’ll Do Design, build, and maintain secure backend services using Kotlin (preferred) or Java Collaborate with security experts to develop tools and systems that detect, prevent, and respond to threats. Contribute to full stack development projects. Write clean, maintainable, and well-tested code. Conduct thorough code reviews and mentor junior engineers. Work in a hybrid setup from our Utrecht office, with flexibility to work remotely. Why Join Us? Be part of a fun, inclusive, and exciting team that values innovation and collaboration. Work on mission-critical projects that directly impact the security of millions of users. Enjoy a hybrid work model with a modern office in Utrecht. Requirements Proven experience as a Senior Software Engineer in at least one JVM language (Kotlin preferred). Solid understanding of software security principles and secure coding practices. Experience with full stack development and modern frontend frameworks (React is a bonus). Passion for well tested, high quality code. Strong communication skills and a collaborative mindset. A proactive attitude and the ability to thrive in a fast-paced, professional, and inclusive environment.