Compiler Engineer JavaScript


Leuven, BE
  • Job Type: Full-Time
  • Function: Engineering Software
  • Post Date: 01/14/2021
  • Website:
  • Company Address: Tervuursevest 362 bus 1, Leuven, 3000

About Guardsquare

Guardsquare is a company developing software for the protection of mobile applications against reverse engineering and hacking. It also develops custom encryption algorithms and provides validating, consulting, and training services.

Job Description

Passionate about software engineering, compiler technology and JavaScript? You are excited to solve challenging problems and build cool software that is used on billions of devices? Join our R&D team!

Our technology

We develop the successful open source project ProGuard and the cutting-edge security products DexGuard and iXGuard. Using compiler technology and obfuscation, encryption and optimisation techniques we harden Android and iOS applications against reverse engineering and tampering.   

Required skills

  • Deep knowledge of JavaScript
  • Experience with mobile cross platform frameworks like Cordova (PhoneGap), Unity3D...
  • Experience with Linux
  • Knowledge of compiler technology or knowledge of obfuscation or optimisation technologies
  • Interest in low level programming

Useful skills

  • Knowledge of information security
  • Experience with reverse engineering and the commonly used tools
  • Familiarity with Android and iOS


We are looking for a Master or PhD in Computer Science with good verbal and written communication skills in English.


GuardSquare is a software product company with small international teams that want to solve challenging problems and create high quality products. You will be part of the team working on new products to protect JavaScript code. 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.

What you can expect from us?

  • Challenging, interesting and diversified work.
  • A good balance between research and implementation work.
  • The opportunity to improve your skills on a personal and a technological level.
  • An attractive salary package with benefits like meal and eco vouchers, retirement savings, hospitalisation insurance, phone, SIM card, compensation for commute...
  • An inspiring work environment with smart colleagues in the beautiful city of Leuven.

Become our colleague!

Send us your CV and the source code of a personal project in JavaScript you are proud of

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Disclaimer: Local Candidates Only
This company does NOT accept candidates from outside recruiting firms. Agency contacts are not welcome.