System Administrator

Keka Technologies Private Limited; Mohali; On-site; INR 450,000 - 900,000; Full time

Job summary

Keka Technologies Private Limited is seeking a hands-on System Administrator in Mohali to manage on-premises servers, cloud networking, security, and Microsoft 365 environments. You will own day-to-day infrastructure operations, including backups, DR, and incident response.

The role requires strong Windows/Linux server skills, networking knowledge, experience with Sofos Firewalls, and proficiency in M365 administration. Hybrid work flexibility and collaboration with IT teams are expected.

Qualifications

• Hands-on experience administering Windows and Linux servers.
• Strong grasp of TCP/IP, DNS, DHCP, VPN, routing, VLANs, firewalls and NAT.
• Experience managing Sofos Firewalls.
• Proficient in Microsoft 365 administration and security policies.
• Experience with server backup, monitoring, patch management, and troubleshooting.

Responsibilities

• Manage and maintain internal/on-premises hardware servers, storage, backups, OS, and related infrastructure.
• Configure, manage, and troubleshoot Sofos Firewalls, including security policies, VPNs, network access, and monitoring.
• Administer Microsoft 365 / Office 365, including users, licenses, Exchange Online, Teams, SharePoint, OneDrive, security policies, and access management.
• Manage AWS and GCP networking services, including VPCs, subnets, routing, VPNs, security groups, DNS, and connectivity.
• Monitor infrastructure availability, performance, security, and capacity.
• Manage user accounts, permissions, authentication, and access controls across internal and cloud environments.
• Implement and maintain backup, disaster recovery, and business continuity procedures.
• Troubleshoot hardware, OS, network, cloud, and connectivity issues.
• Maintain infrastructure documentation, network diagrams, configurations, and procedures.
• Apply security updates, patches, and best practices across servers, firewalls, cloud, and endpoints.
• Coordinate with vendors/service providers for hardware, networking, cloud, and software issues.
• Provide technical support and guidance to internal teams as needed.

Skills

Windows Server

Linux Server

Networking concepts

Sofos Firewall

Microsoft 365 administration

Backup and DR

Troubleshooting

Security principles

Identity/Access management

Tools

VMware

Hyper-V

Job description

We are looking for a hands-on System Administrator to manage and maintain our organization’s IT infrastructure, servers, cloud networking, security, and Microsoft 365 environment. The ideal candidate should be comfortable working independently and taking ownership of day-to-day infrastructure operations.

Key Responsibilities:

• Manage and maintain internal/on-premises hardware servers, storage, backups, operating systems, and related infrastructure.
• Configure, manage, and troubleshoot Sofos Firewalls, including security policies, VPNs, network access, and monitoring.
• Administer Microsoft 365 / Office 365, including users, licenses, Exchange Online, Teams, SharePoint, OneDrive, security policies, and access management.
• Manage AWS and GCP networking services, including VPC/VPC networks, subnets, routing, VPNs, security groups/firewall rules, DNS, and connectivity.
• Monitor infrastructure availability, performance, security, and capacity.
• Manage user accounts, permissions, authentication, and access controls across internal and cloud environments.
• Implement and maintain backup, disaster recovery, and business continuity procedures.
• Troubleshoot hardware, operating system, network, cloud, and connectivity issues.
• Maintain infrastructure documentation, network diagrams, configurations, and operational procedures.
• Apply security updates, patches, and best practices across servers, firewalls, cloud infrastructure, and endpoints.
• Coordinate with vendors/service providers for hardware, networking, cloud, and software-related issues.
• Provide technical support and guidance to internal teams when required.

Required Skills:

• Strong hands-on experience with Windows/Linux Server administration.
• Good understanding of networking concepts — TCP/IP, DNS, DHCP, VPN, routing, VLANs, firewalls, NAT, etc.
• Experience managing Sofos Firewalls.
• Strong experience with Microsoft 365 administration.
• Experience with server backup, monitoring, patch management, and troubleshooting.
• Understanding of IT security, identity/access management, and least-privilege principles.
• Ability to independently diagnose and resolve infrastructure issues.

Good to Have:

• Working knowledge of AWS and GCP networking.
• AWS / GCP certifications.
• Experience with virtualization platforms such as VMware or Hyper-V.
• Experience with monitoring and logging tools.