Network & Infrastructure Engineer

Pakistan·Kharianmid

EngineeringDevops Engineer

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Quick Summary

Key Responsibilities

rack organization, structured cabling, power (UPS/PDU), cooling and physical access control. Monitor the health and availability of servers, switches,

Technical Tools

EngineeringDevops Engineer

Responsibilities

~2 min read

→Design, maintain and update network diagrams covering LAN/WAN topology, IP addressing, VLAN structures and connectivity across all sites.
→Document switch configurations, wireless SSIDs, access point layouts, firewall rules and routing tables.
→Plan and document network expansions for new offices, including structured cabling layouts, rack elevations and device placement.
→Configure, maintain and troubleshoot firewalls include but not limited to security rules, NAT, VPN tunnels, VLANs and WAF policies where applicable.
→Monitor firewall health, throughput and security logs, and respond promptly to incidents.
→Implement and maintain site-to-site and remote-access VPNs.
→Review firewall configurations and security policies on a regular schedule.
→Configure and maintain managed switches, including VLAN segmentation, trunking, port security, STP and link aggregation.
→Deploy, monitor and optimize enterprise wireless for coverage, availability and performance.
→Troubleshoot Layer 2 and Layer 3 connectivity, routing, switching and wireless issues.
→Monitor network performance and implement improvements.
→Manage server room operations: rack organization, structured cabling, power (UPS/PDU), cooling and physical access control.
→Monitor the health and availability of servers, switches, firewalls and other critical devices
→Run and verify scheduled backups (per company policy, and resolve backup failures promptly.
→Maintain network inventory, including asset tagging, warranty tracking and lifecycle management.
→Resolve network and infrastructure tickets within SLA timelines.
→Provide advanced (L2/L3) troubleshooting for connectivity, routing, switching, wireless, firewall and VPN issues.
→Support network connectivity for our telephony platform, including SIP trunk connectivity, firewall and NAT rules for voice traffic, and call-quality troubleshooting (jitter, packet loss, QoS).
→Coordinate with internal IT teams, vendors and ISPs on escalations and hardware replacements.
→Identify recurring problems and implement corrective and preventive measures.
→Apply critical network device patches and firmware updates within defined timelines.
→Conduct periodic access reviews for VPNs, network devices and remote-access services, and remove inactive or unauthorized accounts.
→Support IT security audits, risk assessments and compliance reporting for network and infrastructure operations.
→Follow security policies, change management procedures and documentation standards.

Requirements

~1 min read

Bachelor's degree in IT, Computer Science, Networking or a related field.
2-3 years of hands-on network engineering and infrastructure experience, with demonstrated depth in firewall administration, switching and wireless.
Proven experience producing professional network diagrams in Visio, Draw.io or similar.
Practical experience managing server rooms, including rack installation, structured cabling, power redundancy and cooling.
Strong working knowledge of Fortinet, Sophos or equivalent UTM firewalls.
Hands-on experience with managed switches and enterprise wireless access points (UniFi or equivalent).
Solid grasp of VLANs, STP, OSPF, static routing and link aggregation.
Practical experience configuring and troubleshooting site-to-site and remote-access VPNs.
Familiarity with network monitoring tools, health checks, backup verification and inventory management.
Strong troubleshooting, documentation and analytical skills.

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