Senior Network Administrator

6 days ago

Chennai, Tamil Nadu, India beBeeNetwork Full time ₹ 9,00,000 - ₹ 15,00,000
Job Description

As a skilled Network Engineer with System Administration Expertise, you will play a crucial role in supporting, maintaining, and troubleshooting our IT infrastructure. Your expertise in Layer 2 (switching) and Layer 3 (routing) network infrastructure will ensure high availability, security, and performance of our enterprise IT systems.

Key Responsibilities:
  • Monitor, troubleshoot, and support Layer 2 (switching) and Layer 3 (routing) network infrastructure.
  • Configure and maintain network devices such as switches, routers, firewalls, and wireless access points.
  • Handle VLANs, trunking, STP, port security, and link aggregation.
  • Assist in escalated issues from L1 engineers and coordinate with vendors if required.
  • Perform periodic network health checks, patching, and firmware upgrades.
  • Document network topologies, configurations, and standard operating procedures.
System Administration:
  • Administer Windows/Mac systems Active Directory, DNS, DHCP, and group policies.
  • Perform user account management, access control, and security policy enforcement.
  • Maintain virtualization platforms (VMware/Hyper-V/KVM) and cloud-based environments.
  • Monitor server performance, storage, and backups, ensuring business continuity.
  • Apply OS patches, updates, and security hardening.
  • Support troubleshooting of applications and system-level issues escalated from L1.
Collaboration & Support:
  • Work closely with L1 engineers, providing guidance and training where needed.
  • Coordinate with cross-functional teams to support IT projects and deployments.
  • Create and maintain documentation for both network and system processes.
  • Participate in on-call rotations for critical issues.
Required Skills & Qualifications

Our ideal candidate will have a Bachelor's degree in Computer Science, IT, or related field (or equivalent experience). At least 3–5 years of experience in networking and system administration roles is required. Strong understanding of L2/L3 networking (VLANs, STP, OSPF, BGP, TCP/IP, QoS) and hands-on experience with Cisco/Juniper/HP/Aruba switches and routers are necessary.

Proficiency in Windows/Mac system administration and knowledge of virtualization (VMware, Hyper-V, or similar) are also required. Familiarity with monitoring tools (Nagios, SolarWinds, Zabbix, etc.) and scripting knowledge (PowerShell, Bash, or Python) are pluses.

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