Senior System Administrator

TekWissen; Visakhapatnam; On-site; INR 1,200,000 - 2,400,000; Full time

Job summary

TekWissen Group invites applications for a Senior System Administrator role in Visakhapatnam. The candidate will lead IT infrastructure operations, manage Windows Server, AD, virtualization, security, and backups, and coordinate with vendors and MSPs while working the night shift.

Ideal candidates bring 8–12 years’ hands-on experience, strong leadership, and incident management skills, ensuring availability and continuity of critical systems with limited supervision.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• 8–12 years of experience in System Administration, IT Infrastructure, or Infrastructure Support.
• Strong hands-on experience in Windows Server, Active Directory, networking, firewalls, virtualization, backup, and infrastructure security.
• Strong leadership, ownership, communication, and problem-solving skills.
• Ability to manage critical infrastructure issues independently during night shifts.
• Strong decision-making skills with the ability to work under pressure.
• Strong ownership of infrastructure availability, security, performance, and business continuity.

Skills

Windows Server

Active Directory

Microsoft 365

Networking

Firewalls

VPN

VMware/Hyper-V

Backup/DR

Endpoint Security

ITIL/ISO

PowerShell

MSP Management

Incident Management

Education

Bachelor's degree in Computer Science/IT

Tools

VMware

Hyper-V

SCCM/Intune

Azure AD

Sophos Firewall

Fortinet

Cisco/Aruba

Job description

Overview:

TekWissen Group is a workforce management provider throughout India and many other countries in the world.

Position: Senior System Administrator
Location: Visakhapatnam
Job Type: Full Time
Work Type: Onsite
Shift Timing: 6:30PM-3:30AM (Night shifts)
Experience : 8-12 years

Job Description:

Key Technical Skills:

• Windows Server & Active Directory
• Microsoft 365 / Office 365 Administration
• Domain level integrations
• Networking LAN/WAN, TCP/IP, DNS, DHCP, VLAN, Routing & Switching
• Enterprise Firewalls, VPN & Network Security, Rules
• Enterprise Wi-Fi / Wireless Access Points
• VMware / Hyper-V Virtualization, any other virtualization infra
• Backup & Disaster Recovery
• Endpoint Management & Security
• Infrastructure Monitoring & Troubleshooting
• IT Vendor / MSP Management
• Incident Management and Root-Cause Analysis
• ISO & other compliance and IT framework experience

Leadership & Professional Skills:

• Ability to lead and guide IT infrastructure/support team members.
• Strong team coordination, task delegation and follow-up skills.
• Ability to take ownership of critical IT incidents and infrastructure issues.
• Good decision-making and problem-solving skills under pressure.
• Ability to prioritize tasks based on business impact and urgency.
• Strong communication and interpersonal skills with both technical and non-technical teams.
• Ability to coordinate effectively with management, business teams, vendors and MSPs.
• Proactive approach toward identifying infrastructure risks and implementing improvements.
• Ability to work independently during the night shift and manage critical situations with minimal supervision.

Preferred Skills:

• Sophos Firewalls
• Microsoft Entra ID / Azure AD
• Microsoft Intune
• VDI
• Basic PowerShell or scripting knowledge.
• Microsoft Defender / Endpoint Security
• Cybersecurity
• Creates and maintains network diagrams, SOPs, runbooks and escalation procedures.
• Relevant Microsoft, Cisco, Aruba, Fortinet or VMware certifications.

Qualifications:

• Bachelor’s degree in Computer Science, Information Technology, or a related field.
• 8–12 years of experience in System Administration, IT Infrastructure, or Infrastructure Support.
• Strong hands-on experience in Windows Server, Active Directory, networking, firewalls, virtualization, backup, and infrastructure security.
• Strong leadership, ownership, communication, and problem-solving skills.
• Ability to manage critical infrastructure issues independently during night shifts.
• Strong decision-making skills with the ability to work under pressure.
• Strong ownership of infrastructure availability, security, performance, and business continuity.

TekWissen® Group is an equal opportunity employer supporting workforce diversity.