Haris Rehman's Work | ContraWork by Haris RehmanHaris Rehman
Network Engineer
Remote L1/L2 Network & IT Infrastructure Support
Focus: VPN, Windows, Microsoft 365, Active Directory, printers, applications, Wi-Fi/LAN, ticket troubleshooting and remote support. Enterprise Wi-Fi Deployment & Troubleshooting
Focus: Aruba, Ruckus, Cisco Meraki, APs, controllers, VLANs, DHCP/DNS, captive portal, Wi-Fi troubleshooting. Cisco Enterprise Network Topology
Internet → Firewall/Router → Core Switch → VLAN 10 Users / VLAN 20 Servers / VLAN 30 Wi-Fi Enterprise Network Configuration & Troubleshooting
Title: Enterprise Network Setup & Troubleshooting – Cisco
Description:
Configured and troubleshot enterprise network environments involving Cisco routers and switches. Worked on VLANs, routing, DHCP, DNS, LAN/WAN connectivity, access control, and end-to-end network troubleshooting. Diagnosed connectivity and performance issues using a structured troubleshooting approach and provided remote L1/L2 support.
Skills: Cisco • Routing & Switching • VLAN • TCP/IP • DHCP • DNS • Network Troubleshooting
Site-to-Site VPN / GRE over IPsec Deployment
Title: Secure Site-to-Site VPN – GRE over IPsec
Description:
Designed and configured secure connectivity between remote network environments using GRE over IPsec. Worked with Cisco and Teltonika networking devices, including tunnel configuration, routing, IPsec parameters, NAT considerations, connectivity testing, and troubleshooting.
Skills: IPsec • GRE • VPN • Cisco IOS • Teltonika • Routing • Network Security
Enterprise Wi-Fi & Wireless Network Support
Title: Enterprise Wi-Fi Deployment & Troubleshooting
Description:
Supported business and hospitality wireless environments involving enterprise access points, controllers, switches, and gateways. Troubleshot Wi-Fi connectivity, VLAN, DHCP, DNS, captive portal, authentication, and access point issues while providing remote technical support.
Skills: Aruba • Ruckus • Cisco Meraki • Wi-Fi • WLAN • VLAN • Network Troubleshooting
Remote Network & IT Infrastructure Support
Title: Remote Network & IT Infrastructure Support
Description:
Provided remote L1/L2 technical support for business users across multi-client environments. Resolved network connectivity, VPN, Wi-Fi, Windows, Microsoft 365, Active Directory, printer, application, and endpoint issues while managing incidents through resolution and escalation.
Skills: Network Support • VPN • Windows • Microsoft 365 • Active Directory • Remote Troubleshooting • IT Support