sajal@worldlink:~$ whoami

Sajal
Maharjan.

System & Network Administrator focused on stable infrastructure, secure connectivity, enterprise systems, hosting, telephony, virtualization, and network operations.

01 / about

Infrastructure should be invisible when it works—and resilient when it matters.

Profile

I am a System & Network Administrator with four years of experience supporting enterprise IT infrastructure and network operations in an ISP environment. My work spans server administration, Microsoft 365 and Exchange, hosting platforms, PBX/VoIP, VPNs, Active Directory, virtualization, data-center operations, and network security.

4+ yrs IT & network operations
ISP enterprise environment
24/7 mission-critical mindset

Technical stack

Core platforms, technologies, and infrastructure domains:

Microsoft 365 Exchange Server Active Directory cPanel / WHM DNS PBX / VoIP StrongSwan IPSec VPN Cisco Juniper Extreme Fortinet MikroTik Sophos VPLS / MPLS
02 / experience

Hands-on operations across systems, networks, security, and enterprise support.

2025 — PRESENT

Assistant System Administrator

WorldLink Communications
  • Administer PBX/VoIP systems and resolve voice-service, call-routing, and connectivity issues.
  • Manage Microsoft 365, Exchange, user provisioning, licensing, and mailbox administration.
  • Oversee cPanel/WHM hosting, domains, DNS, SSL certificates, and hosted infrastructure.
  • Configure and troubleshoot StrongSwan IPSec VPN connectivity.
  • Deploy and manage virtual machines and perform server hardware upgrades and maintenance.
  • Support data-center operations including server and switch mounting, structured cabling, patching, and upgrades.
  • Administer Active Directory users, groups, access control, and infrastructure security updates.
WORLDLINK
2022 — 2025

Senior Enterprise Support Representative

WorldLink Communications
  • Resolved advanced enterprise issues involving mail servers, domains, site access, and connectivity.
  • Configured and supported Cisco, Juniper, Extreme Networks, Fortinet, MikroTik, and Sophos devices.
  • Worked with VPNs, firewalls, access-control policies, VPLS/MPLS, and enterprise connectivity.
  • Handled escalated Level 1/Level 2 tickets and complex internet troubleshooting.
  • Provided high-priority support for banks and financial institutions.
  • Installed wireless access points and provisioned new enterprise links.
WORLDLINK
03 / education

Academic foundation in computer applications and IT systems.

Bachelor of Computer Applications (BCA) Mega National College, Tribhuvan University — Kumaripati, Lalitpur
Graduated 2025
04 / contact

Need reliable infrastructure, network support, or systems expertise?

Connect

Based in Thecho, Lalitpur. Reach me directly by email, phone, or LinkedIn.

call_me() linkedin ↗