System Administrator - Windows, AD, Networking

ARPIT SEMWAL

System Administrator

New Delhi, India – 110037

**********@*****.*** +91-783******* LinkedIn

PROFESSIONAL SUMMARY

System Administrator with 7+ years of experience managing enterprise IT infrastructure, Windows Server environments, Active Directory, Office 365, and network operations. Proven ability to reduce downtime, improve system reliability, and support multi-location users. Strong expertise in troubleshooting, access management, vendor coordination, and IT operations. CCNA and RHCSA certified.

CORE TECHNOLOGIES

Operating Systems: Windows Server 2012/2016/2019, Linux (RHEL)

Directory Services: Active Directory, Group Policy, DNS, DHCP

Cloud & Email: Microsoft 365 (O365), Exchange Online

Networking: LAN/WAN, TCP/IP, VLANs, VPN, Firewalls

Security: Antivirus, Endpoint Protection, Access Control

Tools: Remote Desktop, AnyDesk, TeamViewer

Hardware: Servers, Switches, Routers, Desktops, Laptops, Printers

PROFESSIONAL EXPERIENCE

System Administrator

Continental Carriers Pvt. Ltd., New Delhi

Jan 2023 – Present

Administer and maintain Windows Servers, Active Directory, DNS, DHCP, and Firewall environments across headquarters and branch offices.

Designed and implemented preventive maintenance schedules, reducing unplanned system downtime.

Managed complete Office 365 user lifecycle including user creation, licensing, mailbox access, and offboarding.

Troubleshot VPN, server, and network-related issues, ensuring uninterrupted business operations.

Led IT onboarding and offboarding, system access control, and asset allocation.

Prepared daily system health checks, incident reports, and compliance documentation for management.

Customer Support Engineer – Data Network

Gurusons Communication Pvt. Ltd., New Delhi

Jan 2017 – Dec 2022

Installed, configured, and supported servers, switches, firewalls, and Wi-Fi controllers at multiple client sites.

Provided L2/L3 network troubleshooting for connectivity, performance, and security issues.

Supported enterprise collaboration tools including Microsoft Teams, Zoom, Skype, and WebEx.

Delivered remote and on-site technical support, software deployments, and system diagnostics.

Coordinated with ISPs, OEM vendors, and internal teams to resolve complex network incidents.

Desktop & Video Conferencing Support Engineer

Vinayak Compserve Pvt. Ltd., New Delhi

May 2016 – Dec 2017

Installed and supported desktops, laptops, printers, and enterprise peripherals.

Resolved LAN/WAN connectivity, hardware, and OS-level issues within defined SLAs.

Configured and supported video conferencing and AV solutions for enterprise users.

Delivered reliable on-site IT support in high-pressure corporate environments.

EDUCATION

Bachelor of Technology (Information Technology)

Graphic Era University, Dehradun, Uttarakhand

2009 – 2013

CERTIFICATIONS

CCNA – Cisco Certified Network Associate

RHCSA – Red Hat Certified System Administrator

KEY STRENGTHS

Enterprise IT Infrastructure Management

System & Network Troubleshooting

User Access & Identity Management

Vendor & Stakeholder Coordination

Documentation & Compliance

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