​Technical Lead, IT Infrastructure
Req ID: 138373
Remote Position: Hybrid
Hiring Manager: Paul Stanners
Band: 10
Region: Asia
Country: India
State/Province: Chennai
City: Guindy, Chennai

Summary

We are seeking a proactive and detail-oriented RDL Network Administrator to manage the day-to-day operations and administration of our global Research and Development Lab (RDL) networks. Reporting directly to the Lead Network Architect, you will be responsible for the run-and-maintain aspects of our isolated, air-gapped networks across multiple HPS Design Center locations (including San Jose, Richardson, Thailand, Shanghai, SongShan Lake, Penang, Chennai, and future sites).

This role uniquely focuses on cutting-edge open networking. The majority of our RDL network infrastructure runs on SONiC (Software for Open Networking in the Cloud) deployed on Celestica’s own high-performance network switches. Furthermore, security inside the air-gap relies heavily on Zscaler technology acting as internal firewalls integrated with local VLANs for precise, policy-driven access control.





Since this environment operates under strict security isolation without typical enterprise automated management tools, this role requires a hands-on, highly disciplined administrator who excels at executing manual and semi-automated workflows securely and consistently. Traditional Cisco-based networking skills are considered secondary to expertise in SONiC, Linux networking, and Zscaler-driven zero-trust security.

This role requires regular in office presence within the RDL environment and participation in a 24x7 on-call rotation supporting global RDL infrastructure, including after-hours incident response and scheduled maintenance activities.

Core Responsibilities

1. SONiC & Open Network Operations
● SONiC Infrastructure Management: Monitor, configure, and maintain the health, performance, and uptime of Celestica’s proprietary open network switches running the SONiC operating system.
● Configuration &

📌 SONIC RDL Network Admin (Chennai)
🏢 Celestica
📍 Chennai