Network Administrator

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TCS Hiring for skill

Role:

Required Technical Skill Set:

Experience:

Work Location:

Must-Have:

1. L2/L3 Experience with complex, larger scale network endpoint secure connectivity and access control that spans both wired and wireless access control through Forescout.

2. Experience with 802.1X/NAC, DHCP, HTTPS, TCP, Netscout, Radius, etc. and access control policy development and management and device remediation

3. Experience with IOT and BYOD device access policy controls

4. Very good communication skill.

5. Flexible in 24*7 client support

Good-to-Have:

1. Additional certification in any network technology (CCNA, CCNP) 2. Experience in automation, AI/ML technologies

Responsibility of / Expectations from the Role:

• Designing, configuring, and troubleshooting CounterAct.

1. Switch Plug-in Optimization (wired)
2. Align endpoint, L2, L3 association with same CounterACT appliance and Configure Connectivity Group
3. Re-valuate and re-configure polling Intervals for L2 and L3 switches and routers after configuring connectivity groups.
4. Validate and fix L2(MAC)/L3(ARP) Polling to ensure L3 devices are polled for ARP table, L2 devices only for MAC tables.

• Wireless Plug-in Configuration

1. Add any Wireless Controllers to the plugin
2. Align Wireless controllers with CounterACT appliance for polling

• Classification Policy

1. Classification Sub-Rules creation and clean up based upon:
2. Device type (Vendor, Model, OS etc.)
3. NIC
4. MAC
5. Authentication (MAB, dot1X etc.)

• Operation Technology (OT/iOT)

1. NAT
2. Windows
3. Mobile Devices
4. Macintosh
5. Printers
6. VOIP
7. Headset (HaloLens, Meta Quest etc.)
8. Camera
9. Network Devices
10. Linux/Unix/AIX
11. Unclassified

• Clarification Policy creation

1. OT/iOT Clarification Policy
2. Unclassified Clarification Policy
3. Validate comments in sub-rules
4. Remove initial implementation troubleshooting sub-rules (Port 22 open, netbios/DNS name, etc.)
5. Review and restructure Network Device Clarification Policy

• Control Policy Optimization:

1. Create catch all buckets/sub-rules in each control policy.
2. Review and modify Exemption sub-rules in control policies.
3. Add secondary blocking action of Virtual Firewall, i.e., via Channels ingesting Network Tap traffic.
4. Review and re-configure recheck setting of control policy sub-rules based on Classification, Clarification and Discovery policy optimizations.

• Operating System Changes: Policy to detect if a device changes OS fingerprint from one OS to another such as Windows to non-windows.
• Windows Version Changed on a managed device.
• VPN Plug-in Configuration: Configure VPN plugin to help identify and validate devices connecting via VPN.

Note: