Network Security Consultant (Pre-Sales)

What you will do?

You will act as a technical partner to both the sales team and customers. Your mission is to demonstrate why Mendel makes sense in a specific customer network – not through marketing promises, but through real data and real insights.

Specifically, you will:

• lead the technical part of pre-sales – from the first technical call to deal closure,
• manage POCs (Proof of Concept):
  • collect and analyze technical inputs (network architecture, traffic flows, IP ranges, integrations),
  • coordinate solution deployment with internal teams,
  • work with real network traffic data and Mendel outputs, lead evaluation meetings, and formulate clear conclusions,
• present Mendel to customers – explaining how it works, what it sees in the network, and what traditional tools miss,
• contribute to solution sizing, architecture design, and the technical part of commercial proposals,
• act as an expert sparring partner for sales, partners, and customers,
• occasionally represent GREYCORTEX at conferences and industry events.

Who are we looking for?

We are looking for an experienced professional who:

• has hands-on experience with enterprise networks and understands network traffic behavior,
• can explain even highly complex technical concepts in a clear and understandable way,
• is independent, confident in decision-making, and comfortable engaging directly with customers.

What you’ll need

• deep knowledge of TCP/IP, DNS, HTTP, and network behavior,
• experience with firewalls, segmentation, and network monitoring,
• hands-on experience with tools like tcpdump, Wireshark, or similar,
• solid understanding of network security principles

Nice to have

• Cisco or firewall-related certifications,
• security or ethical hacking background,
• experience in pre-sales, consulting, or enterprise environments.

Why you might enjoy this role?

Here, you’ll see the real impact of your work – not just on slides, but in live customer environments. As a small company, we give people real ownership and space to influence what and how we do things – from the sales pipeline to actual Mendel deployments in environments where security and data truly matter.

What we offer

• 5 weeks of vacation + 4 sick days – rest matters,
• flexible working hours – work in a way that suits you best,
• quarterly bonuses based on team results,
• education budget – books, training, conferences,
• meal allowance, laptop, mobile phone with plan – essential equipment,
• contribution to Multisport card – to clear your head when needed,
• English courses – individual or group-based, depending on your needs,
• company events – sometimes board games, sometimes BBQ, sometimes a beer trip