Security Engineer/Penetration Tester

We are looking for an engineer to join our client’s team – Cyrex part of Magic Entertainment & Media Group Ltd. is a media and tech start-up powered by creativity and innovation. They work with leading developers and publishers within the games industry, providing support and solutions designed around individual needs and carried out by global experts.


  • Application security (mobile, client, web).
  • Triage, vulnerability assessment, and responsible disclosure/reporting.
  • Penetration testing lifecycle (reconnaissance, penetration, reporting).
  • Serialization mechanics used within network protocols.
  • Binary, hexadecimal, and ASCII notations.
  • Experience in tools like Burpsuite, IDA, GDB, ApkTool, etc.

Would be a plus

  • Cryptographic algorithms (encryption, hashing)
  • API architectures and mechanisms
  • Back-end architectures and common vendor libraries
  • Obfuscation techniques
  • Anti-cheat wrappers (BattlEye, EAC, etc.)
  • Python development
  • Linux, Unix, Windows systems

We offer

  • A professional environment with great people to work with.
  • Opportunities to make a difference, to develop and grow.
  • Direct cooperation with the customer.
  • Compensation of the tax payments.
  • Health insurance.


  • Bootstrap proxy setup to support interception of custom network protocols and packet crafting
  • Penetration testing for a broad range of applications (mobile, client, web, console)
  • In-depth reporting of discovered vulnerabilities (PoC, resolution, technical and non-technical description of vulnerability)
  • Risk assessment discovered vulnerabilities (impact, probability)
  • Collaborating with other team members during penetration testing (interaction is key during pair hacking)
  • Actively seeking and working on feedback from clients and partners
  • Performing security operations, communicating, and assisting from a remote location



Job Category: Security Engineer
Job Type: Full Time
Job Location: Kyiv

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