Network Security Analyst – Research

Do you have a passion for cybersecurity, are you fascinated by new ways to combat network threats, and are you looking for an opportunity to apply your skills in penetration testing, network attack analysis, and other areas of network security? At GREYCORTEX, we are expanding our research team, where you will have the opportunity to make a significant contribution to improving our security product.

Mendel is a smart and practical network detection and response (NDR) solution that protects the network infrastructures of hospitals, banks, technology companies, and many other interesting sectors. Mendel processes large volumes of data from network traffic and uses algorithms and machine learning to find known and emerging security threats. In addition, it can do many other things – for example, show what’s happening in users’ networks or alert customers about bad settings of network elements and performance problems.

We are looking for a colleague for the position of

Network Security Analyst – Research

Full-time position
Location: JIC, Brno-Medlánky, Czech Republic

About the Position 

You will play a key role in network security in our research team, led by network security expert Michal. Your role will be to identify and analyze network threats and suggest ways to strengthen the detection capabilities of our product. You will learn new cyber attack techniques, work with state-of-the-art threat detection tools, and bring new perspectives and ideas to the team.

Your Skills

You are a great match for us if:

  • You have advanced knowledge of network protocols and network security – you understand how networks work and where their weaknesses may lie
  • You have experience in penetration testing – you know how to identify vulnerabilities and test the resilience of network systems
  • You know how to detect and analyze network attacks – you can identify different types of attacks and respond quickly to security incidents
  • You can design and implement solutions to security problems
  • You can use tools such as Wireshark, Nmap, and Metasploit to monitor and test the security of network traffic
  • You are familiar with Linux and the command line
  • You are proficient in Bash, Python, or other scripting languages
  • You are proficient in Czech and English at B1 level – you can work with technical documentation and communicate in an international team

Nice-to-Have Additional Skills

  • Cybersecurity certifications such as eJPT (Junior Penetration Tester) or OSCP (Offensive Security Certified Professional)
  • Knowledge of IDS/IPS systems such as Suricata and the ability to create and modify threat detection rules
  • Experience with advanced security tools such as SIEM systems or malware analysis tools

What We Offer

You can look forward to:

  • 5 weeks holiday + 4 sick days
  • Flexible working hours and home office
  • Annual salary bonus
  • Training allowance
  • Laptop
  • Flat rate for telephone
  • Meal allowance
  • English courses
  • Joint events like barbecues, sport, board games
  • Delicious coffee 🙂

If you think you are a great fit for this position, send us your CV to the email below, including a few lines explaining why we should hire you – even if you do not meet all our requirements.

We look forward to hearing from you!

Email: [email protected]
Tel: +420 602 732 467

By sending us your CV, you agree that GREYCORTEX s.r.o. can process your personal data for recruitment purposes. We will process your data in compliance with the current personal data privacy and processing legislation of the Czech Republic (101/2000 Sb.).