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Bajaj Finance

New

Tech Solutionist Professional - Contact center

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Description

Job Purpose
VoIP Engineer (Asterisk, Kamailio) - 5-7 Years Experience

Duties and Responsibilities
A-.
  • Minimum required Accountabilities for this role

  • VoIP Infrastructure Design & Maintenance:
    o.
  • Configure, deploy, and maintain FreeSWITCH and Kamailio-based systems.

  • o.
  • Understanding of VoIP architectures to support business needs.

  • o.
  • Implement call routing, DID management, and trunk configurations.
  • SIP & Call Routing:
    o.
  • Develop and manage SIP-based call routing for internal and external communication.

  • o.
  • Troubleshoot SIP signaling issues using tools like Wireshark or sngrep.

  • o.
  • Optimize routing rules for least-cost routing (LCR) and high availability.
  • Monitoring & Performance Optimization:
    o.
  • Monitor VoIP systems for performance, security, and uptime.

  • o.
  • Conduct capacity planning and optimize system resources.

  • o.
  • Implement call quality monitoring tools (e.
  • g.
  • , RTCP, QoS metrics).
  • Collaboration & Support:
    o.
  • Work with cross-functional teams to integrate VoIP systems with CRM and other platforms.

  • o.
  • Provide Level 2/3 support for VoIP-related issues.

  • o.
  • Train team members on VoIP best practices and system usage.


    B-.
  • Additional Accountabilities pertaining to the role
  • Security & Compliance:
    o.
  • Ensure VoIP security measures to prevent fraud and mitigate risks.

  • o.
  • Ensure compliance with industry standards and regulations (e.
  • g.
  • , GDPR, HIPAA).

  • o.
  • Configure firewalls and SBCs for secure SIP trunking.
  • Database & Messaging Integration:
    o.
  • Integrate VoIP systems with databases like MongoDB and PostgreSQL.

  • o.
  • Leverage Redis for caching and RabbitMQ for messaging queues.

  • o.
  • Ensure efficient data storage and retrieval mechanisms to support VoIP services.
  • Programming & Scripting:
    o.
  • Develop custom VoIP features and modules using languages like Golang, Lua, Python, C, and C++.

  • o.
  • Automate repetitive tasks and processes through scripting.

  • o.
  • Understanding of WebRTC solutions for real-time communication.

Key Decisions / Dimensions
  • Soft Skills:
    o.
  • Strong analytical and problem-solving skills.

  • o.
  • Excellent communication and documentation abilities.

  • o.
  • Ability to work collaboratively in a team environment.

Major Challenges
  • VoIP Expertise:
    o.
  • Strong hands-on experience with FreeSWITCH and Kamailio.

  • o.
  • In-depth knowledge of SIP protocols, RTP, and VoIP troubleshooting.

  • o.
  • Familiarity with codecs like G.
  • 711, G.
  • 729, Opus, etc.
  • Networking Proficiency:
    o.
  • Solid understanding of networking concepts such as NAT, RTP, and STUN/TURN.

  • o.
  • Experience with firewall configurations and SBCs.
  • Development Skills:
    o.
  • Proficiency in programming languages like Golang, Lua, Python, C, and C++.

  • o.
  • Experience with WebRTC for real-time communication.

  • o.
  • Familiarity with database systems like MongoDB and PostgreSQL.

  • o.
  • Experience with Redis for caching and RabbitMQ for asynchronous messaging.
  • Tools & Platforms:
    o.
  • Familiarity with monitoring tools like Homer, Grafana, or Nagios.

  • o.
  • Hands-on experience with cloud platforms like AWS, Azure, or Google Cloud.

  • o.
  • Proficiency in containerization tools like Docker and orchestration with Kubernetes.


Required Qualifications and Experience
a).
  • Qualifications
  • Graduates with relevant voip experience of 4-5 Years Experience
    b).
  • Work Experience
  • VoIP Infrastructure Design & Maintenance:
    o.
  • Configure, deploy, and maintain FreeSWITCH and Kamailio-based systems.

  • o.
  • Design scalable and reliable VoIP architectures to support business needs.

  • o.
  • Implement call routing, DID management, and trunk configurations.
  • SIP & Call Routing:
    o.
  • Develop and manage SIP-based call routing for internal and external communication.

  • o.
  • Troubleshoot SIP signaling issues using tools like Wireshark or sngrep.

  • o.
  • Optimize routing rules for least-cost routing (LCR) and high availability.
  • Monitoring & Performance Optimization:
    o.
  • Monitor VoIP systems for performance, security, and uptime.

  • o.
  • Conduct capacity planning and optimize system resources.

  • o.
  • Implement call quality monitoring tools (e.
  • g.
  • , RTCP, QoS metrics).
  • Collaboration & Support:
    o.
  • Work with cross-functional teams to integrate VoIP systems with CRM and other platforms.

  • o.
  • Provide Level 2/3 support for VoIP-related issues.

  • o.
  • Train team members on VoIP best practices and system usage.
  • Security & Compliance:
    o.
  • Implement VoIP security measures to prevent fraud and mitigate risks.

  • o.
  • Ensure compliance with industry standards and regulations (e.
  • g.
  • , GDPR, HIPAA).

  • o.
  • Configure firewalls and SBCs for secure SIP trunking.

Skills

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