Cyber security


Artificial Intelligence


logo GCX

Our team is growing.


As a growing high-tech company GREYCORTEX based in Brno, Czech Republic is looking for new colleagues for several junior and senior positions.

If you are concerned that your skills may not match these positions exactly, don’t worry. Nothing is lost by applying. We are happy to review your CV.

Open Vacancies

Job Description

Design, develop, maintain, and troubleshoot front-end components and modules of websites and applications according to provided specifications and requirements. You will develop new Javascript components, design new pages with a focus on user experience, and write automatic tests in Selenium and many other interesting technologies.

Required Skills

  • Experience with newest web technologies and Javascript frameworks
  • Understanding of Java, HTML, CSS, Javascript
  • Basic English
  • The ability to ask questions

Preferred Skills

  • Experience with SQL
  • Knowledge of popular Javascript frameworks like React or Angular
  • Practical knowledge of Git
  • Substantial focus on software quality and producing/reviewing requirements
  • Full-time commitment is preferable

This is a part-time or full-time position.

Job Description

Gain hands-on experience in utilities like tshark, tcpdump, git, testlink, VMWare, OpenNebula, and others. You will have a chance to test our graphical user interface, detection engine, detection methods, or other system components.

Required Skills

  • Basic understanding of SQL, mainly PostgreSQL
  • Basic understanding of Bash
  • Understanding of TCP/IP networks

Preferred Skills

  • Substantial focus on software quality, producing/reviewing requirements
  • Communication skills and ability to work as part of a team
  • Interest in cyber security and artificial intelligence

This is a part-time or full-time position.

Job Description

You will be working in our capture team, responsible for processing network traffic and developing parsers for new protocols including SCADA protocols; which are used in industrial network like power plants. You will also learn about security while contributing to our IDS (Intrusion Detection System) engine.

Required Skills

  • Basic understanding of C and C++
  • Practical knowledge of Linux/UNIX
  • Basic English

Preferred Skills

  • Practical experience with C programming and Bash scripting
  • Familiarity with Git and Autotools
  • Deep knowledge of network protocols
  • Experience in Computer Engineering, Computer Science, or related field

This is a full-time position.

Job Benefits

  • Experience in artificial intelligence and network security
  • Hands-on training and professional development
  • Flexible working hours
  • Long-term employment contract
  • Career growth opportunities

About You

  • You are happy to help your colleagues, and willing to ask for their help
  • You are never satisfied, and are always looking to improve
  • Challenges don't scare you
  • It is very important to you that your code is effective and error free
  • You can communicate and work well with a team
  • If you say you will do something, you make it happen

Start Date:

Immediately or by agreement


Brno-Medlanky (Technology Park)


+420 511 205 388,