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Infolabs Global
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Delhi · On-site · 1-3 Yrs · Oct 14
1 open role0 posted in 7d1 in 30d
Hiring: Engineering
Job description
Overview
DevOps Engineer – Cloud Infrastructure & SIP/VoIP (Voice AI)
Responsibilities
- Integrate and manage SIP trunks with telecom carriers: IP whitelisting, authentication, codecs, DID/number routing
- Configure, run and harden Asterisk (PJSIP, dialplans, trunk failover, routing to LiveKit SIP)
- Troubleshoot call failures, one-way audio, NAT issues, jitter and packet loss
- Secure the VoIP edge with SIP firewalling, fail2ban, toll-fraud prevention, SRTP/TLS and rate limiting
- Coordinate directly with carrier engineering teams during setup and incidents
- Manage cloud infrastructure on AWS and Azure: VPCs, security groups, load balancers, DNS, IAM
- Deploy and operate self-hosted LiveKit across multiple regions, including TURN/coturn and TLS
- Run GPU servers for LLM, speech-to-text and text-to-speech workloads
- Containerise services and build CI/CD pipelines (Docker, Kubernetes, GitHub Actions or similar)
- Manage infrastructure as code with Terraform or similar
- Keep cloud costs under control as call volumes scale
- Set up monitoring, logging and alerting (Prometheus, Grafana or similar)
- Track call quality and capacity: concurrent calls, MOS, latency, error rates
- Be the go-to person when calls drop or audio breaks in production
Qualifications
- 4+ years in DevOps, SRE or infrastructure roles
- Hands-on production experience with Asterisk
- Strong understanding of SIP and RTP: call flows, SDP, NAT traversal, codecs (G.711, Opus)
- Experience debugging with sngrep, tcpdump or Wireshark
- Experience integrating SIP trunks from telecom carriers
- Strong AWS skills (Azure is a plus)
- Solid Linux administration and networking (TCP/UDP, NAT, firewalls)
- Docker and CI/CD in production
- FreeSWITCH or Kamailio
- LiveKit, WebRTC or LiveKit SIP
- Experience with Indian carriers (Airtel, Tata Tele, Jio, Vodafone Idea) and DoT/TRAI compliance
- Exposure to UAE carriers (du, Etisalat)
- GPU server management (CUDA, NVIDIA drivers, container toolkit)
- Kubernetes in production
- Python or Bash scripting for automation
- Work on live voice AI used by banks, enterprises and government entities
- Own a stack where cloud, telephony and AI meet. Very few roles offer this mix
- Direct access to the founding and engineering leadership
- A fast-moving team where your decisions go to production quickly
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Job application FAQ
Last updated 23 October 2026
- How do I apply for DevOps Engineer – Cloud Infrastructure & SIP/VoIP (Delhi) at Infolabs Global?
- Open this job on Feedback AI and sign up free (or sign in). You can apply from the job detail page; match scores and skill gaps appear when your profile is complete. Infolabs Global may attach structured assessments to interview rounds after you apply.
- Does Feedback AI show a match score for this DevOps Engineer – Cloud Infrastructure & SIP/VoIP (Delhi) role?
- Yes after you add a resume or skills. Match score ranks this role against your profile — skills met, gaps, level, and location — so you prioritise applications where fit is strongest.
- Is DevOps Engineer – Cloud Infrastructure & SIP/VoIP (Delhi) remote or on-site in New Delhi, Delhi?
- This listing is marked on_site with location New Delhi, Delhi. Confirm details on the job description before applying.
- What skills matter for this DevOps Engineer – Cloud Infrastructure & SIP/VoIP (Delhi) role at Infolabs Global?
- This is a mid-level DevOps Engineer – Cloud Infrastructure & SIP/VoIP (Delhi) role. Key skills include skills listed in the job description. Feedback AI highlights matched vs missing skills on your profile after signup.