Java R&D Software Engineer - Leuven

Passionate about software engineering, compiler technology, and Java?  Excited to solve challenging problems and build innovative software used on billions of devices? Join our Java team!

Our Technology

We develop the successful open-source project ProGuard and the cutting-edge security product DexGuard. Using compiler technology, obfuscation, encryption, and optimization techniques, we make Java and Android applications smaller, faster, and more resilient to reverse engineering and tampering.

Responsibilities

• Maintain and improve our existing code base.
• Research, test, and implement additional code hardening techniques.
• Support customers in using our software.
• Continuously improve code quality through extensive testing.
• Stay up-to-date with reverse engineering practices.

Profile

• Master's degree in Computer Science (or similar).
• Experience in a similar role.
• Deep knowledge of Java.
• Experience with Linux.
• Interest in low-level programming and debugging practices.

Useful Skills

• Knowledge of compiler technology (Java bytecode, complex application processing), or knowledge of obfuscation or optimization technologies.
• Knowledge of information security.
• Experience with reverse engineering and the commonly used tools.
• Familiarity with Android and Android build tools: Gradle, ProGuard...

Team

Guardsquare is a software product company with small international teams solving challenging problems and creating high-quality products. You’ll be part of the team working on ProGuard, DexGuard, and new products based on Java technology. This provides immense opportunities to make a direct impact on products, features, and workflows. The techniques you come up with could potentially be in use by major companies within weeks, including the largest payment processors, banks, and social media companies. Every team member designs, develops, maintains, and improves our software, while also providing email support to customers. Plus, you’ll have the opportunity to research the latest compiler and mobile security technologies

What Guardsquare Offers You

• A full-time job with a competitive salary package.
• Tools and flexibility to help you develop successfully.
• An international environment where you’ll interact with motivated and open colleagues from diverse backgrounds.
• A workplace where you can share and implement your ideas.
• A hybrid work policy to help ensure an excellent work-life balance.

At Guardsquare, we pride ourselves on being a diverse and multicultural company, with team members representing numerous nationalities. We value different perspectives, which has contributed to our leadership in mobile application security. You’ll be part of a dynamic team focused on excellence and continuous learning. We encourage our colleagues to share opinions, collaborate, and grow professionally.

So, what are you waiting for? Join us!

About Guardsquare

Guardsquare offers the most complete approach to mobile application security on the market. Built on the open-source ProGuard technology, Guardsquare’s software integrates seamlessly into the development cycle—from app security testing to code hardening to real-time threat visibility.

Over 900 customers worldwide, across major industries, rely on Guardsquare to identify security risks and protect their mobile applications from reverse engineering and tampering.

Guardsquare is based in Leuven (Belgium) with offices in Gent (Belgium), Boston (USA), and Munich (Germany).