Cybersecurity Network Security Specialist

Vector Synergy; Warszawa; Hybrid; PLN 212,314 - 297,239; Full time

Job summary

Vector Synergy in Warsaw, Poland, seeks a Network Security Specialist to oversee and troubleshoot domain-specific network security solutions. The ideal candidate must demonstrate extensive hands-on experience in managing network security, particularly with Palo Alto Firewalls and Cisco equipment.

The position requires technical communication skills, a strong sense of responsibility, and the ability to work independently in a challenging environment. Interested applicants are encouraged to apply by the deadline of July 2, 2026.

Qualifications

• Minimum 5 years of professional IT experience, especially in network security.
• Minimum English proficiency at CEFR B2.
• Hands-on experience managing large enterprise networks.

Responsibilities

• Administer, monitor and troubleshoot network security solutions.
• Provide 2nd line support to system and network users.
• Create and update technical documentation.

Skills

Technical communication skills

Analytical skills

Problem-solving skills

Attention to detail

Teamwork spirit

Education

Level 4 education

Tools

Palo Alto Firewalls

Cisco Routers and Switches

Job description

Location

Warsaw, Poland (30%); Off-site (70%)

Security Clearance

EU RESTRICTED

Deadline for Application

02.07.2026 r.

Specific Requirements

Desired Certifications

• CCSP (Certified Cloud Security Professional) or equivalent
• AZ-305: Designing Microsoft Azure Infrastructure Solutions or equivalent

Local Network Knowledge, Hands-on Experience

• Manage Palo Alto Firewalls using Panorama
• Manage Cisco Switching based networks
• Manage Palo Alto GlobalProtect at scale
• Internet edge forward-proxy / outbound security on Palo Alto
• Advanced troubleshooting (packet + firewall dataplane)
• Verification of security Firewall security rules
• Identification of gaps and provisions of improvements or corrections
• VPN design plus operations at scale
• 802.1X/EAP & NAC integration (provide examples of known specific brands)

Cloud Networking Knowledge, Hands-on Experience

• Hub-and-spoke / landing zone networking
• Design and operate VNets, subnets, peering (incl. cross-subscription)
• Segmentation, route isolation
• Network security enforcement: implementing and troubleshooting NSGs/ASGs, service tags
• "Why is this flow blocked" workflow using effective security rules
• Private access patterns: Private Link / Private Endpoints, Private DNS Zones
• DNS forwarding/resolution across on-prem to Azure
• Hybrid connectivity: operating and troubleshooting Site-to-Site VPN and/or ExpressRoute
• BGP basics, failover, throughput/MTU, tunnels, active/active patterns

SASE/SSE Hands-on Experience

• Remote access & ZTNA
• Traffic steering / routing
• TLS inspection / decryption operations
• Threat protection at the edge
• Identity integration

Migration Experience

• Phased rollout
• Exceptions handling
• Legacy apps
• Rollback strategy
• Stakeholder communications

Zero Trust Networking Knowledge, Hands-on Experience

• Policy based on identity + device posture
• Microsegmentation / least privilege
• Designing segmentation for east-west and north-south traffic
• Trust zones
• App dependency mapping
• Deny-by-default between segments
• Controlled egress

WAF / Load Balancer Knowledge

Administer, monitor and troubleshoot network security solutions specific to the domain

Minimum Requirements

• Minimum level of education: Level 4
• Minimum English language skills (CEFR): B2
• Minimum IT relevant professional experience (years): 5
• Minimum experience at similar position (years): 5
• Required certificates: CCNP Security or equivalent from other network vendors (e.g. Palo Alto certifications)
• Very good understanding of TCP/IP protocols, IP routing, Network Security Policies
• Good knowledge of network services like DNS, DHCP, NTP, etc.
• Good understanding of the wired and wireless access technologies (wifi, 802.1x/EAP etc.)
• Good understanding of the application-layer authentication and encryption mechanisms, e.g. HTTPS/SSL/TLS protocols, PKI and X.509 certificates
• Hands-on experience with the products and solutions related to the domain (e.g. Cisco routers and switches, wireless controllers, network firewalls etc.)
• Hands-on experience in administering a large enterprise network
• Good knowledge of the network configuration of the endpoint operating systems (Windows, Linux, IOS etc.)
• Work experience with stateful and stateless traffic filtering

Required Skills

• Excellent communication skills both technical and non-technical (in written and verbal communication)
• Very good analytical and trouble-shooting skills
• Open minded, excellent troubleshooting, analytical and problem solving skills
• Very strong sense of responsibility, accuracy and attention to details
• Sense of tact and diplomacy
• Friendly, supportive and helpful personality with cooperative and service-oriented attitude
• Ability to work in stressful environment with minimal supervision
• High level of motivation and initiative, creating thinking
• Proactive attitude and team-work spirit

Other

• Able to travel occasionally inside Europe (plane, boat, car etc.) up to 10 travels/year
• Driving license cat. B
• Ability to drive rented car, including abroad

Typical Tasks and Responsibilities

• Administering, monitoring and troubleshooting network security solutions specific to the domain
• Providing 2nd line support to Frontex system and network users
• Creating and updating technical documentation and operating procedures
• Advising on possible network security improvements, changes or upgrades