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Cognyte Network Data Engineer 
Bulgaria, Sofia 
289423664

19.11.2025

Today’s world is crime-riddled. Criminals are everywhere, invisible, virtual and sophisticated. Traditional ways to prevent and investigate crime and terror are no longer enough…

Technology is changing incredibly fast. The criminals know it, and they are taking advantage. We know it too.

For nearly 30 years, the incredible minds at
Cognyte

We’re looking for an analyst to examine encrypted raw network data, extract TLS and IP-level metadata, and identify patterns or trends within complex data streams.

As a Cognyter you will:

  • Build analysis pipelines and ensure the accuracy of detection methods using well-defined evaluation metrics
  • Demonstrate strong knowledge of network protocols, hands-on experience with packet capture analysis, and solid data analysis or machine learning skills.
  • Gain crypto domain expertise and be responsible for developing a Blockchain analytics product.

For that mission you will need:

  • Prior experience in network traffic forensics or application traffic analysis.
  • Deep understanding of network protocols (Ethernet, IP, TCP, UDP, DNS, etc.)
  • Familiarity with TLS internals
  • Experience working with network traffic data to extract meaningful characteristics or patterns from packet streams
  • Experience using Wireshark/tshark, Network Sniffers and protocol dissectors
  • Familiarity with basic ML/statistics
  • Experience with Python or any other language for scripting and automation
  • Attention to detail and a high standard of data handling
  • Bachelor’s degree – Computer Science / Information technology
  • Highly committed and responsible, independent and able to take initiative
  • Flexible and easy to adapt working on multiple technical contexts
  • Able to work in a dynamic environment
  • Fluent communication in English
  • An endlessly curious mind

Nice to have:

  • Research-level machine learning expertise
  • AI models knowledge
  • Experience creating labeled datasets and synthetic capture generation
  • Experience with NoSQL databases (e.g., MongoDB)
  • Experience with CI/CD solutions (e.g., Jenkins, TeamCity, Gitlab CI)
  • Experience with Linux and Windows operating systems
  • Understanding the SDLC – software Dev. lifecycle -> being part from designing to execution -> writing tests, executing, open bugs.
  • Previous experience in a SCRUM team

Apply now.