
Network Security Consultant
We’re currently looking for a technically oriented specialist based in Prague (or nearby) who isn’t afraid to dive deep into network details, understands what’s happening in complex environments, and can hold meaningful technical discussions with customers.
What you’ll be doing
You’ll become a technical expert on Mendel – understanding what it sees in customer networks and helping them make full use of its capabilities.
Your main responsibilities:
- Technical deployment of Mendel at customer sites (PoC)
- Analyzing network traffic and identifying security events
- Designing solution architectures tailored to customer needs
- Collaborating with the sales team, offering technical support, and responding to customer questions
You’ll be working with real data, exploring diverse infrastructures, and helping to design solutions that make sense – no fluff, just substance. We’re not looking for a salesperson or a classic pre-sales profile, but rather a technically strong person who can combine network knowledge with real-world understanding.
Who are we looking for
We’re looking for a practically minded network professional who has real-world experience and enjoys digging into detail. You don’t need to be a polished presenter – what matters most is that you can orient yourself in the topic, discuss it with customers, and interpret data meaningfully.
You’ll need to have:
- Hands-on experience with enterprise networks (firewalls, segmentation, monitoring…)
- Solid understanding of network protocols (TCP/IP, DNS, HTTP…)
- Familiarity with tools like tcpdump, Wireshark, or similar
- Analytical thinking, curiosity, and a responsible mindset
- The ability to explain technical topics in a natural, clear, and accessible way
We’re ideally looking for someone with a mid-level experience – someone who’s already been exposed to complex networks and understands them in a broader context. Unfortunately, theoretical knowledge alone won’t be enough.
Why it might be a good fit
We’re a small team that knows what it’s doing. Your work will be visible and will have real impact – both inside the company and with customers who rely on Mendel every day.
You’ll work with real operations in complex networks – the kind where security is taken seriously and the data actually matters. And since Mendel is already being used internationally, your feedback will shape a product with global relevance.
What we offer
- 5 weeks of vacation + 4 sick days – rest matters
- Flexible working hours – adjust to what works best for you
- Quarterly bonuses based on your contribution and team results
- Educational budget – books, trainings, conferences of your choice
- Meal allowance, laptop, and mobile plan – standard gear for your daily work
- Multisport card contribution – for clearing your head or stretching your back
- English lessons – tailored to your needs, one-on-one or group
- Team events – sometimes board games, sometimes BBQs, sometimes a beer trip
We are looking for a colleague for the position of
Network Security Consultant
Full-time position
Location: Prague and surroundings
Next steps?
Send us your CV or just a few lines about yourself. You’ll first meet with our HR, then have a technical interview with Ondra (focused on networks and Mendel), and finally a conversation with Richard, our Head of Sales. If everything clicks, we’ll shake hands.
We’re looking forward to hearing from you!
E‑mail: [email protected]
Tel.: 602 732 467
Zasláním svého životopisu souhlasíte s tím, že GREYCORTEX s.r.o. bude zpracovávat vaše osobní údaje pro účely náboru. Vaše údaje budeme zpracovávat v souladu se Zákonem o ochraně osobních údajů 101/2000 Sb.