VoIP Support Engineer L2/L3

Bajaj Finance · Pune

  • Experience3–7 yrs
  • SalaryDisclosed
  • Work modeonsite
  • Levelmid
  • Posted11 Sept 2026
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About Bajaj Finance

Bajaj Finance is hiring in Pune in financial services. This role looks for around 3+ years of experience.

Skills

  • FreeSWITCH
  • Asterisk
  • Kamailio
  • SIP
  • RTP
  • SIP trunks
  • DID numbers
  • Dial plans
  • RabbitMQ
  • Redis
  • WebRTC
  • VoIP security
  • Firewall
  • Session Border Controller (SBC)
  • Automation scripting

The role

A VoIP support engineer at a financial services platform monitors and maintains FreeSWITCH, Asterisk, and Kamailio environments, troubleshooting SIP and RTP issues and configuring telephony routing. The role also applies VoIP security controls and automates operational support.

Full job description

Key Accountabilities –

VoIP Support Engineer (L2/L3 Support)

1. VoIP Platform Support o Monitor, maintain, and support FreeSWITCH, Asterisk, and Kamailio environments to ensure high availability.

2. Incident Management o Troubleshoot and resolve SIP, RTP, call routing, registration, and voice quality issues within agreed SLAs.

3. System Monitoring o Continuously monitor platform health, call quality, server performance, and proactively address issues before service impact.

4. Call Routing & Configuration o Configure and maintain SIP trunks, DID numbers, dial plans, routing rules, and telephony configurations.

5. Performance & Capacity Management o Optimize system performance, conduct capacity planning, and ensure the platform can handle expected call volumes

. 6. Integration Support o Support integrations with CRM, databases, messaging systems (RabbitMQ, Redis), and WebRTC-based applications.

7. Security & Compliance o Implement and maintain VoIP security controls, firewall/SBC configurations, and ensure compliance with organizational security standards.

8. Automation & Continuous Improvement o Develop scripts and automation to simplify operational tasks, reduce manual effort, and improve system reliability.

9. Documentation & Knowledge Management o Maintain technical documentation, troubleshooting guides, SOPs, and conduct knowledge transfer sessions for internal teams.

10. 24x7 Operational Support o Provide L2/L3 production support, participate in on-call rotations, perform root cause