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Infrastructure

Telephony Lead Full Time Employee

About the role
We are looking for a highly skilled Telephony L3 Engineer with deep expertise in SIP routing, VoIP configurations, and telephony infrastructure. The ideal candidate should have hands-on experience in designing, implementing, and troubleshooting SIP-based communication systems, PBX configurations, SBCs (Session Border Controllers), and VoIP networks.

What will you do

  • 1. SIP Routing & VoIP Configuration
  • Configure and manage SIP trunks, call routing, and VoIP gateways.
  • Optimize SIP signaling flow, call handling, and failover mechanisms.
  • Troubleshoot SIP-based issues, including SIP registration, call setup, and media negotiation.
  • Implement SIP redundancy and disaster recovery strategies.
2. Telephony Infrastructure Management
  • Maintain and optimize PBX systems (Avaya, Cisco CUCM, Asterisk, FreePBX, Genesys, or similar platforms).
  • Configure and monitor Session Border Controllers (SBCs) like AudioCodes, Ribbon,Oracle, or Cisco CUBE.
  • Set up and manage PRI/E1, SIP trunks, DID numbers, and inbound/outbound call flows.
  • Manage voice gateways and telephony network components to ensure optimal call quality.
3. Troubleshooting & Support (L3 Escalations)
  • Handle L3 escalations related to VoIP call failures, one-way audio, jitter, and latency issues.
  • Analyze SIP traces, PCAP captures, and syslogs to diagnose and resolve complex call routing issues.
  • Work closely with network and security teams to optimize QoS, NAT traversal, and firewall configurations.
  • Coordinate with telecom service providers to resolve carrier-related SIP issues.
4. SIP Protocol & Security Compliance
  • Ensure compliance with RFC standards (e.g., RFC 3261 for SIP, RFC 2833 for DTMF).
  • Implement SIP security measures (TLS, SRTP, IP whitelisting, fraud prevention).
  • Configure and manage SIP authentication mechanisms (Digest, TLS, Mutual TLS, etc.).
5. Monitoring & Reporting
  • Use tools like Wireshark, SIPp, Homer SIP Capture, and RTCP monitoring for deep-dive troubleshooting.
  • Set up SIP call analytics dashboards for call quality monitoring.
  • Provide regular performance reports and suggest optimizations.

What you will need

  • 5+ years of experience in SIP/VoIP telephony systems.
  • Strong knowledge of SIP routing, trunking, and call signaling.
  • Hands-on experience with PBX platforms (Asterisk, Avaya, Cisco, FreePBX, Genesys, etc.).
  • Expertise in configuring Session Border Controllers (SBCs) and VoIP gateways.
  • Proficiency in SIP debugging tools (Wireshark, tcpdump, SIPp, sngrep, Homer).
  • Knowledge of SIP codecs (G.711, G.729, Opus), RTP, RTCP, and DTMF handling (RFC2833, SIP INFO).
  • Experience in NAT traversal techniques (STUN, TURN, ICE) and VoIP firewall configurations.
  • Strong troubleshooting skills in SIP call failures, one-way audio, jitter, and latency issues.
  • Familiarity with telephony protocols (ISDN, SS7, PRI, MGCP, H.323) is a plus.
  • Experience in integrating VoIP with cloud-based platforms (AWS, Azure, Google Cloud) is a plus.

Good to Have

  • CCNP Collaboration (Cisco Voice & Video)
  • ACIS / ACSS (Avaya Certified)
  • Microsoft Teams Voice Engineer Certification
  • FreeSWITCH / OpenSIPS certification
  • Hands-on experience with telephony tools like Genesys, Avaya, Aspect, Ameyo, and Asterisk-based systems is required.
About us 
Welcome to Meesho, where every story begins with a spark of inspiration and a dash of entrepreneurial spirit. We’re not just a platform; we’re your partner in turning dreams into realities.
Our Mission
Democratising internet commerce for everyone- Meesho (Meri shop) started with a single idea in mind -to be an e-commerce destination for the next billion Indian consumers and enable 100 million small businesses to succeed online. We provide sellers with a range of industry-first benefits such as zero commission and the lowest shipping cost.  Over 1.75 million sellers are registered on Meesho, growing their business by tapping the company’s massive customer base, state-of-the-art tech infrastructure, pan-India logistics at the lowest cost through third-party logistics providers in an ‘Everyday Lowest Cost’ channel for sellers. Affordable, relatable merchandise mirroring local markets has helped us make inroads with first-time internet users in the country. We cater to an underserved and unique customer base and cover every serviceable pincode in the country. Our unique business model and continuous innovation has enabled us to become the first Indian horizontal E-commerce company.
Culture and Total Rewards
Our focus is on cultivating a dynamic workplace characterized by high impact and performance excellence. We prioritize a people-centric culture, dedicated to hiring and developing exceptional talent. Total rewards at  Meesho comprises of a comprehensive set of elements – monetary, non monetary, tangible and intangible in nature. Our 11 guiding principles, or “Mantras,” are the backbone of how we operate –  influencing everything from recognition and evaluation to growth discussions. Daily rituals & processes like “Reflections”, “Listen or Die” , Internal Mobility Program, Talent Reviews, Continuous Performance Management – all  embody these principles. 
We provide market leading compensation – both cash and equity-based – specific  to job roles, individual experience and skill along with our employee centric benefits and work environment. We focus extensively on holistic wellness – through our MeeCare Program – encompassing benefits and policies across physical, mental, financial, and social wellness aspects. This includes extensive medical insurance benefits for employees and their families, wellness initiatives like telehealth, wellness events, and gym & recreational discounts etc. To support work-life balance, we provide generous leave policies, parental support benefits, retirement benefits, and learning and development assistance. Through gratitude for stretched work, personalized gifts, engagement & fun at work – we promote employee delight at the workplace. Many other benefits such as salary advance support, relocation assistance, and flexible benefits plans further enrich the Meesho employee experience.
Know more about Meesho here : https://www.meesho.io/