Cybersecurity Network Security Specialist

SquareDev is a member of the QnR Group, a leading technology organization specializing in end-to-end custom software solutions, Artificial Intelligence, Cybersecurity, SAP S/4HANA, SAP Business One, ServiceNow, and FinTech solutions. SquareDev uses state-of-the-art technology to build solutions for customers and partners, participating in research projects across Europe and collaborating with top universities and enterprises on AI, Data, and Cloud.

• At least 5 years of experience in a similar network security role.
• Education at Level 4 or above.
• Strong understanding of TCP/IP, IP routing and network security policies.
• Good knowledge of network services (DNS, DHCP, NTP) and endpoint OS network configuration (Windows, Linux, iOS).
• Solid grasp of wired/wireless access technologies (Wi-Fi, 802.1x/EAP) and application-layer security (HTTPS/TLS, PKI, X.509).
• Hands-on experience with enterprise network hardware (Cisco routers/switches, wireless controllers, firewalls).
• Experience with stateful and stateless traffic filtering in large enterprise environments.
• Strong troubleshooting, analytical and communication skills — both technical and non-technical.
• Ability to work under pressure with minimal supervision, with a proactive and team-oriented mindset.
• Valid category B driving licence and willingness to travel within Europe occasionally (up to 10 trips/year).
• Required certification: CCNP Security or equivalent (e.g. Palo Alto Networks certifications).
• English B2 level certification or higher.

Nice to have:

• CCSP (Certified Cloud Security Professional) or equivalent.
• AZ-305: Designing Microsoft Azure Infrastructure Solutions or equivalent.
• Hands-on experience with Palo Alto (Panorama, GlobalProtect, forward-proxy), Cisco switching, advanced firewall troubleshooting, and VPN design at scale.
• Azure cloud networking: hub-and-spoke/landing zone design, NSGs/ASGs, Private Link, hybrid connectivity (VPN/ExpressRoute).
• SASE/SSE experience: ZTNA, TLS inspection, identity integration, and migration from legacy on-prem proxy/VPN setups.
• Zero Trust networking: identity and device posture-based policy, microsegmentation, east-west/north-south traffic control.
• WAF and load balancing experience (F5, Cloudflare, Citrix, or similar).

• Administering, monitoring and troubleshooting network security solutions.
• Providing 2nd line support to system and network users.
• Creating and maintaining technical documentation and operating procedures.
• Identifying and advising on network security improvements, changes and upgrades.