Java R&D Software Engineer - Leuven or Gent

Passionate about software engineering, compiler technology and Java? You are excited to solve challenging problems and build cool software that is 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 and obfuscation, encryption, and optimization techniques we make Java and Android applications smaller, faster, and more hardened against reverse engineering and tampering.

Team Guardsquare is a software product company with small international teams that solve challenging problems and create high quality products. You will be part of the team working on our open source product ProGuard, our commercial product DexGuard, and new products based on Java technology. This will give you a ton of opportunities to have a direct impact on the products, features and workflow. New techniques you come up with for the next wave of optimization and hardening could potentially be in use at really big companies within a couple of weeks (among our customers are many of the biggest payment processors, banks, social media companies…). Every team member designs, develops, maintains and improves our software and provides email support to our customers. He also gets the opportunity to research the latest compiler and mobile security technology.




Computer Science Engineering




Flemish Brabant


Leuven or Ghent


What Guardsquare offers you

A full time job with a competitive salary package You are provided with the tools & flexibility to develop yourself successfully An international environment where you will interact with motivated & open colleagues with different backgrounds A workplace where you can share and implement your ideas A hybrid work policy, which helps guarantee an excellent work-life balance

At Guardsquare, we take pride in being a diverse and multicultural company with team members representing numerous nationalities. We value different perspectives and opinions throughout the business which has contributed to our being the market leader in mobile application security.

You will be part of a dynamic team that strives for excellence and focuses on continuous education and enhancement in skills. We encourage & empower our trusted colleagues to share their opinions, actively collaborate, and continue to learn and grow.

Gezocht Profiel

Required skills

Deep knowledge of Java At least 2-3 years of experience in a similar role.

Useful skills

Experience with Linux Interest in low level programming 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 the Android build tools: Gradle, ProGuard...


We are looking for a Master in Computer Science (or equivalent practical experience) with good verbal and written communication skills in English.