Senior System Administrator

Experience: 10+ Years

Job Type: Full-Time

Department: IT Infrastructure / IT Operations

Job Summary

We are looking for an experienced Senior System Administrator with 10+ years of hands-on experience in IT infrastructure management, system administration, desktop and laptop support, and end-user computing. The ideal candidate should have proven expertise in administering, managing, and supporting 500+ desktop and laptop systems in a corporate environment, ensuring high availability, optimal performance, security, and seamless IT operations.

The candidate should possess strong troubleshooting skills, expertise in Windows operating systems, hardware and software management, network troubleshooting, endpoint security, and IT asset management.

Key Responsibilities

- Administer, manage, and support 500+ desktop and laptop systems across the organization.
- Install, configure, maintain, and troubleshoot Windows operating systems, applications, hardware, and peripherals.
- Provide L2/L3 technical support for desktop, laptop, software, hardware, and operating system-related issues.
- Manage user accounts, access permissions, and Group Policies in an Active Directory environment.
- Perform system imaging, OS deployment, software installation, patch management, and security updates.
- Monitor system performance, ensure endpoint security compliance, and implement preventive maintenance procedures.
- Troubleshoot LAN, Wi-Fi, VPN, DNS, DHCP, printer, and connectivity-related issues.
- Manage IT assets, hardware inventory, software licenses, warranty tracking, and asset lifecycle management.
- Coordinate with vendors and service providers for hardware repairs, warranty claims, and technical escalations.
- Ensure timely resolution of IT incidents and service requests in accordance with SLA requirements.
- Maintain IT documentation, system configurations, asset records,



and standard operating procedures (SOPs).
- Support data backup, disaster recovery, business continuity, and IT security initiatives.
- Identify opportunities to improve IT support processes, system availability, and end-user experience.
- Provide technical guidance and mentorship to junior IT support engineers and team members.

Required Skills and Qualifications

- Minimum 10 years of experience in System Administration, IT Infrastructure, Desktop Support, or End-User Computing.
- Proven experience managing and supporting 500+ desktops and laptops in a corporate workplace.
- Strong hands-on knowledge of Windows 10/11 and Windows Server environments.
- Good understanding of Active Directory, Group Policy, DNS, DHCP, TCP/IP, LAN, Wi-Fi, and VPN.
- Experience with hardware troubleshooting, software deployment, OS installation, patch management, and endpoint security.
- Familiarity with Microsoft 365, Outlook, Teams, and other enterprise applications.
- Knowledge of IT asset management, incident management, and service desk processes.
- Strong analytical, troubleshooting, communication, and problem-solving skills.
- Ability to work independently, manage priorities, and handle critical IT issues efficiently.

Preferred Skills

- Experience with Microsoft Intune, SCCM/MECM, or other endpoint management tools.
- Knowledge of antivirus/EDR solutions, BitLocker, endpoint compliance, and security best practices.
- Exposure to virtualization technologies, backup solutions, and Windows Server administration.
- ITIL Foundation certification or relevant Microsoft certifications would be an advantage.

Ideal Candidate Profile The ideal candidate will be a technically strong, service-oriented IT professional with proven experience managing large-scale end-user computing environments, maintaining system availability, ensuring IT security compliance, and delivering reliable technical support to business users.

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