Tech Solutionist Professional

Job Purpose

VoIP Engineer (Asterisk, Kamailio 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.