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 workplace.

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.

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