Ananyy Anupam

Senior SRE with 11+ years of experience in VoIP, UCaaS, and large-scale SIP/RTP systems. Skilled in Kubernetes (Helm, Flux, GitOps), deep SIP troubleshooting, and observability (TICK, Prometheus, Grafana, ELK, Zabbix). Experienced in managing 600+ telephony servers across AWS and on-prem, with strong expertise in incident response, RCA, and reliability engineering.

Senior Site Reliability Engineer (SRE) - RingCentral

(2022-02)

• Architected and operated large-scale VoIP workloads on Kubernetes (Helm, GitOps/Flux), enabling zero-downtime deployments, auto-scaling, and multi-region resilience.
• Managed 600+ telephony servers across 3 global regions, supporting high-volume production traffic with strong availability and reliability.
• Automated deployments, health checks, certificate rotation, and scaling operations across AWS and Linux-based telco infrastructure.
• Designed and maintained media PoPs and distributed telephony environments, ensuring low-latency and highly available SIP/RTP media paths.
• Performed deep SIP/RTP troubleshooting across voice, video, WebRTC, and conferencing systems using packet captures (Wireshark, tcpdump, CloudShark) and SIP trace analysis.
• Executed regression and load testing using SIPp, identifying defects in SIP/RTP workflows and ensuring release stability before production rollout.
• Administered Kamailio, Asterisk, and in-house SBC with SIP RFC compliance, codec optimisation, and efficient call-path handling.
• Built and maintained full-stack observability using Prometheus, Grafana, InfluxDB, Zabbix, CloudWatch, and ELK, implementing alerting and SLA monitoring for system reliability.
• Managed Kafka and Zookeeper clusters for real-time event streaming across distributed communication systems.
• Led infrastructure initiatives including PoP deployment, high availability (HA) design, redundancy planning, and certificate lifecycle management.
• Participated in 24/7 on-call rotation, leading incident response, troubleshooting production outages, and performing root cause analysis (RCA) to improve system reliability and reduce recurrence.

Senior Member of Technical Staff (SRE) - Mitel Networks Corporation

(2019-09 - 2022-02)

• Maintained and troubleshot Mitel UCaaS servers hosted on Google Cloud infrastructure.
• Designed and supported VoIP applications while assisting developers with defect analysis and resolution.
• Managed Mitel SBC call routing and performance.
• Supported CentOS 6/7 integration with VMware environments.
• Integrated Active Directory, Calendar, and LDAP with VoIP platforms.
• Led SIP call troubleshooting, IVR and call center workflow design, and scenario replication for customers.

Tier 2 Engineer (PCVE) - Polycom Technology R&D Centre Pvt Ltd

(2019-03 - 2019-08)

• Designed and implemented configurations for managed services and Polycom cloud deployments.
• Provided engineering support for video conferencing upgrades and collaboration management.
• Troubleshot Polycom video infrastructure using SIP, H.323, and log analysis within large enterprise environments.

TAC Engineer - Alcatel Lucent - CSS CORP.

(2016-08 - 2019-02)

• Troubleshot and resolved issues for Alcatel VoIP products, including SIP, H.323, PSTN, PRI, BRI, IP Telephony, SBCs, and codecs.
• Implemented Voicemail applications, analysed SIP/H.323 traces, and configured Alcatel SBC.
• Tested SIP trunks and endpoints from multiple vendors and resolved network issues using Wireshark/TCPdump.

NOC ENGINEER - ERICSSON INDIA PVT LTD

(2015-11 - 2016-05)

• Led deployment of RBS (RBS-2954 / 2964v2 / 6201-combo) and performed rectification of VSWR / LOS / AIS.
• Worked on E1/T1 provisioning, ATM to IP conversion, SDH to PDH conversion, and SIP analysis.

NOC Engineer (NOKIA) - Vodafone Essar Spacetel LTD

(2014-08 - 2015-11)

• Managed Nokia BTS and BSS maintenance, UM & ABIS interface creation, BSS integration and upgrades, TRx addition/deletion, and E1 provisioning to BTS.

BTECH - Electronics and Communication Engineering (ECE) - DR MGR EDUCATIONAL AND RESEARCH INSTITUTE UNIVERSITY (2010 - 2014)