Network Engineer

Qualifications

Onsite Network Engineer:

Bachelor's Degree in Computer Science or related area

4 years' of experience with network administration, Racking,Stacking of Devices, basic troubleshooting of Cisco Switches, Firewall, Routers etc.

Knowledge of IP networking fundamentals

Responsibilities

Maintain, implement, and troubleshoot networks

Design and support our network systems and infrastructure

Configure and operate routers and switches

Monitor network performance and make recommendations based on performance analysis

On-Site Troubleshooting & Resolution

Once the engineer arrives on-site, the following tasks must be executed systematically:

• Physical Inspection & Basic Checks
  
  

✅ Visual Inspection

Verify device power status (LED indicators).

Check cabling for damage/loose connections.

Validate rack stability and proper airflow.

✅ Connectivity Testing

Use cable testers to validate Ethernet/fiber links.

Reseat SFPs/transceivers if link flaps are detected.

Confirm switch port status (shut/no shut if needed).

• Hardware Replacement
  
  

🔧 Failed Device Swap

Power down the faulty device (if safe) after confirmation with Client SME.

Replace with pre-configured spare (if available).

Document serial numbers in the ITSM ticket.

• Coordination with Remote Teams
  
  

📞 Live Troubleshooting

Establish a secure remote session (SSH/TeamViewer).

Share console output with backend engineers.

Implement configuration fixes as directed.

Initiate Teams call and share screens

• Post-Resolution Validation
  
  

✔ Functional Testing

Ping tests, traceroutes, and throughput checks.

Verify VLAN/access control for firewall rules.

Obtain Infosys client sign-off before departure.

Post-Support Steps

Step 6: Ticket Resolution & Closure

If Resolved, The Engineer Updates The ITSM Ticket With

Actions taken

Replaced components (if any)

Client confirmation (ITSM Approval or email approval)

If unresolved, a temporary workaround is implemented, and the ticket is escalated.

Step 7: Asset & Documentation Update

Spare parts used are recorded in the ITSM asset inventory.

Network diagrams & CMDB are updated if changes were made.