About the Role
About the role You will own and manage our telephony platform and the Linux systems. The cloud and DevOps piece is deliberate our platform runs on cloud infrastructure, and we want the person maintaining it to eventually deploy and automate it themselves. One doesnt need Cloud & DevOps experience coming in. We hire on telephony and Linux fundamentals; you'll have the mentorship, the time, and the real ownership to build the rest here.

Role & responsibilities
Telephony
Build and maintain Asterisk and FreeSWITCH installation, upgrades, configuration, hardening
Write and debug dial plans: routing, IVR, queues, time conditions, failover
Root cause from SIP traces and RTP streams

Linux (equally core)
Own the servers: provisioning, patching, hardening, capacity, backups, recovery
Diagnose system-level performance problems
Manage the networking stack: routing, DNS, NTP, firewalls, and the packet path a call actually takes

Cloud & DevOps (where the role grows )
Cloud fundamentals, then automation in Bash or Python, then monitoring, containers,



and CI/CD as you get comfortable

RequirementsPreferred candidate profile
Telephony
2 to 3 years hands-on with Asterisk and/or FreeSWITCH in production
Real dial plan authoring and debugging, not just editing someone else's - Experience with SIP trunk providers and PSTN connectivity

Linux (valuable to expert level)
Command-line fluency
Systematic troubleshooting on an unfamiliar box under load
Networking knowledge: TCP/UDP behaviour, routing, DNS, NAT, firewalls, and how to prove where a packet is dropped

Troubleshooting (What matters more than the checklist)
You want to know why it broke and get to the root cause of the issue to fix it. You reach for the layer below when the obvious answer doesn't hold.

Valuable to have
Kamailio/OpenSIPS or SBC exposure
AMI/ARI or ESL • WebRTC, TLS/SRTP • kernel tuning • any cloud platform, Python, or monitoring tool

📌 Cloud Engineer Telephony Noida
🏢 Rezo.AI
📍 Noida