Network Administrator

HayPassYerevanstaffamveröffentlicht 11.09.2026
Muss:PythonSecurity

HayPass is looking for a Network Administrator who is responsible for the design, implementation, monitoring, and security of an organization's network infrastructure across on-premises, virtualized, and containerized environments. This role requires hands-on expertise with advanced network security solutions such as F5, Fortinet, Palo Alto along with a strong understanding of multi-tier architectures, and ISO/IEC 27001 security standards. The Network Administrator ensures high availability, scalability, and security of IT systems while supporting daily operations and strategic infrastructure projects.

Reports to IT Manager

Primary Responsibilities

Setup, Configure and manage network infrastructure, including VLANs, subnets, routers, and firewalls.

Troubleshoot network connectivity issues, including DNS, DHCP, IP routing, and VPN configurations.

Administer and configure network security measures, such as firewalls and access control lists (ACLs).

Monitor network performance and ensure availability using tools like Nagios, Prometheus, and Grafana.

Implement network zoning and segmentation based on multi-tier application architecture.

Conduct regular network assessments, vulnerability scans, and hardening activities.

Maintain and optimize data center (DC) cabling, rack layouts, and physical network infrastructure.

Document network infrastructure, configurations, and troubleshooting procedures.

Maintain detailed documentation of system configurations, network diagrams, and policies.

Collaborate with other teams (e.g., infrastructure admins) to ensure network performance is optimized.

Optional Responsibilities

Participate in internal/external audits and risk assessments.

Assist with load balancing, VPN setup, and advanced security audits.

Implement network automation and configuration management using Ansible, Jenkins, or similar tools.

Required ​​Skills

Routing (static and dynamic routing protocols such as OSPF, EIGRP, BGP)

Switching (VLANs, trunking, STP, RSTP)

DNS, DHCP, IP Routing, VPNs (IPSec, SSL VPNs, MPLS)

Subnetting and IP Addressing (IPv4, IPv6)

Network Topology Design (LAN, WAN, VPN, SD-WAN)

Routing (static and dynamic routing protocols such as OSPF, EIGRP, BGP)

Firewall Management (e.g., Palo Alto, Fortinet, Cisco ASA)

ACLs (Access Control Lists) and NAT (Network Address Translation)

Intrusion Detection/Prevention Systems (IDS/IPS)

Network Monitoring (Zabbix, Prometheus, Grafana)

TCP/IP stack and OSI model understanding

PowerShell, Python, Bash for automation

Network Security (IPSec, SSL/TLS, RADIUS, TACACS+)

Optional Skills

Wireshark, tcpdump, NetFlow for troubleshooting

Network Automation (Ansible, Terraform, etc.)

High Availability and Load Balancing (F5, HAProxy, Cisco ACI)

Required Qualifications

Bachelor's degree in IT, Computer Science, or related field (or equivalent experience).

3+ years of experience in network administration, routing and switching, and firewall management.

CompTIA Network+ or

Cisco Certified Network Associate (CCNA)

Optional Qualifications

Certified Network Professional (CCNP).

CompTIA Security+.

CompTIA Advanced Security Practitioner (CASP+).

​Generic Skills

Strong troubleshooting and analytical skills.

Attention to detail with a focus on performance and uptime.

Ability to work independently and as part of a cross-functional team

Effective communication and documentation skills.

Good to excellent knowledge of English

Customer focus

Adaptability to change

Teamwork

Results-oriented

We appreciate the time and interest of everyone who applies. However, due to the high volume of applications we receive, only candidates who are shortlisted will be contacted.

If you do not hear from us within one month of submitting your application, it means that you were not preselected for this position and will not move forward in the recruitment process.

Thank you for your understanding and for considering this opportunity with us.