Java R&D Software Engineer - Leuven at Guardsquare

<h4><span style="font-family: helvetica, arial, sans-serif;"><strong>Summary</strong></span></h4> <p><span style="font-family: helvetica, arial, sans-serif;">We are looking for a passionate <strong>Java Software Engineer</strong> with a strong interest in <strong>software security and low-level software engineering</strong> to join our R&amp;D team in Leuven, working on our Java based products, such as <strong>ProGuard and DexGuard</strong>.</span></p> <p><span style="font-family: helvetica, arial, sans-serif;">Our technology processes and transforms Java and Android applications using techniques such as <strong>bytecode analysis, obfuscation, optimization, encryption, and code hardening</strong> to make applications smaller, faster, and more resilient against reverse engineering and tampering.</span></p> <p><span style="font-family: helvetica, arial, sans-serif;">The ideal candidate enjoys solving complex technical problems, working with challenging codebases, and experimenting with new ideas. You’ll have the opportunity to research new <strong>optimization and code hardening techniques</strong> and turn promising concepts into production-ready solutions.</span></p> <h4><span style="font-family: helvetica, arial, sans-serif;"><strong>Responsibilities</strong></span></h4> <ul> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Maintain and improve our <strong>Java-based technology</strong>, including ProGuard and DexGuard.</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Research, test, and implement new <strong>code hardening techniques</strong>.</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Work with <strong>Java bytecode, obfuscation, encryption, and application processing</strong>.</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Continuously improve code quality through extensive testing.</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Stay up-to-date with <strong>reverse engineering and software security practices</strong>.</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Support customers with complex technical questions related to our software.</span></li> </ul> <h4><span style="font-family: helvetica, arial, sans-serif;"><strong>Profile</strong></span></h4> <ul> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Master's degree in <strong>Computer Science, Software Engineering</strong>, or a related field.</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Ideally <strong>2 to 3 years of experience</strong> in a similar software engineering role.</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Excellent <strong>Java &amp; Kotlin</strong> skills.</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Experience working with <strong>complex codebases</strong>.</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Interest in <strong>low-level programming, debugging, and software security</strong>.</span></li> </ul> <h4><span style="font-family: helvetica, arial, sans-serif;"><strong>Useful Skills</strong></span></h4> <ul> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Knowledge of <strong>compiler technology, Java bytecode, or complex application processing</strong>.</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Knowledge of <strong>obfuscation, optimization, or software protection techniques</strong>.</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Experience with <strong>reverse engineering</strong> and related tools.</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Familiarity with <strong>Android, Gradle, or ProGuard</strong>.</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Knowledge of <strong>information or application security</strong>.</span></li> </ul> <h4><span style="font-family: helvetica, arial, sans-serif;"><strong>What Guardsquare Offers You</strong></span></h4> <ul> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">A full-time job with a competitive salary package.</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">The tools and flexibility to develop yourself successfully.</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">An international environment where you’ll interact with motivated and open colleagues from diverse backgrounds.</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">A workplace where you can share and implement your ideas.</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">A hybrid work policy that helps ensure an excellent work-life balance.</span></li> </ul> <p><span style="font-family: helvetica, arial, sans-serif;">At Guardsquare, we take pride in being a diverse and multicultural company. You’ll be part of a dynamic team that strives for excellence, encourages collaboration, and focuses on continuous learning and technical growth.</span></p> <p><span style="font-family: helvetica, arial, sans-serif;"><strong>So, what are you waiting for? Join us!</strong></span></p> <h3><span style="font-family: helvetica, arial, sans-serif;"><strong>About Guardsquare</strong></span></h3> <p><span style="font-family: helvetica, arial, sans-serif;">Guardsquare offers the most complete approach to mobile application security on the market, covering the full development cycle from mobile app security testing and code hardening to real-time threat detection and API security.</span></p> <p><span style="font-family: helvetica, arial, sans-serif;">More than 1,000 customers worldwide rely on Guardsquare to identify security risks and protect their mobile applications and SDKs against reverse engineering and tampering.</span></p> <p><span style="font-family: helvetica, arial, sans-serif;">Guardsquare is based in Leuven (Belgium), with offices in Ghent (Belgium), Boston (USA), and Munich (Germany).</span></p>