Tech Solutionist Professional - Contact center

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.