Network Engineer & Cybersecurity

Ashim

Adhikari

Level 3 Certified Professional Computer Hardware and Network Technician (CTEVT-NSTB) with extensive experience in system administration, penetration testing, and IT infrastructure management.

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About Me

Available for Network & Security Consulting

Designing secure digital infrastructures, analyzing network vulnerabilities, and building resilient enterprise systems.

I'm Ashim Adhikari — a passionate Cybersecurity practitioner and Network Engineer. I specialize in designing secure digital infrastructures, analyzing vulnerabilities, and maintaining resilient enterprise networks. My focus is on building tech that performs reliably and protects against modern threats.

Holding CTEVT-NSTB Level 3 technician credentials, I combine hardware-level server configuration with system administration, penetration testing, and virtualized lab deployment. My priority is engineering systems that remain operational and protected under modern threats.

My Expertise

Expertise

Windows Server

Active Directory

Cyber Security

Firewall Configuration

Virtualization (VMware/Proxmox)

Hardware Troubleshooting

Network Administration

Server Configuration

Vulnerability Assessment

Cisco Routing & Switching

Penetration Testing

Data Recovery

Linux System Admin

DNS/DHCP

Bash Scripting

Work

Enterprise Network Simulation

Designed and simulated a highly secure enterprise network architecture using Cisco Packet Tracer and GNS3, implementing VLANs, OSPF, and strict firewall policies.

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Vulnerability Assessment Lab

Built an isolated virtual environment to deploy vulnerable machines, actively performing penetration tests and documenting security flaws to propose mitigation strategies.

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Automated Server Backup System

Developed custom Bash and Python scripts to automate routine server backups across Linux nodes, ensuring data integrity and rapid recovery protocols.

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My Work Experience

Experience

2022 — Present

Freelance Network & Security Consultant at Self Employed

Providing hardware troubleshooting, network installations, and security audits for local businesses to ensure operational resilience.

2021 — 2026

IT Infrastructure Specialist at System Bull Information and Communication Technology College

Built and maintained the entire IT Infrastructure, including Windows/Linux server setups, active directory implementation, and hardware maintenance.

2021 — 2026

Lab Instructor at System Bull Information and Communication Technology College

Teaching computer hardware and network courses, guiding students in practical labs, configuring servers, and demonstrating real-world cybersecurity practices.