Semi Senior VoIP Infrastructure SRE

Descripción del puesto

5+ years in infrastructure, systems engineering, network engineering, SRE, DevOps, or telecom operations. 3+ years operating production VoIP, SIP, UCaaS, PBX, carrier, contact-center, or real-time communications infrastructure. Strong Linux administration skills in production environments. Strong AWS experience, especially EC2, VPC networking, Route 53, IAM, load balancing, storage, monitoring, and automation. Strong understanding of SIP, RTP, DNS/SRV, NAT traversal, TLS, WebRTC concepts, packet captures, and call-flow troubleshooting. Experience with distributed systems, clustered services, message queues, replicated databases, and failover patterns. Strong scripting ability with Python and Bash. Experience with monitoring/logging systems and operational debugging using logs, metrics, traces, and packet captures. Comfortable performing production changes with careful planning, validation, rollback thinking, and written procedures. Strong written English and clear async communication. The ideal candidate is a senior, hands-on infrastructure engineer with real production VoIP experience. They can debug from the customer report down through signaling, media, application logs, cloud networking, and system health. They are careful around production, pragmatic about automation, and comfortable documenting decisions so the platform becomes more reliable over time. This is not a generic DevOps role. We need someone who understands that voice infrastructure has sharp edges: latency, packet loss, NAT, failover behavior, endpoint quirks, DNS behavior, and customer-visible impact all matter.