Senior Tech Specialist

Job Purpose

VoIP Engineer (Asterisk, Kamailio Years Experience

Duties and Responsibilities

A-Minimum required Accountabilities for this role

• VoIP Infrastructure Design & Maintenance:
  
  oConfigure, deploy, and maintain FreeSWITCH and Kamailio-based systems.
  
  oUnderstanding of VoIP architectures to support business needs.
  
  oImplement call routing, DID management, and trunk configurations.
• SIP & Call Routing:
  
  oDevelop and manage SIP-based call routing for internal and external communication.
  
  oTroubleshoot SIP signaling issues using tools like Wireshark or sngrep.
  
  oOptimize routing rules for least-cost routing (LCR) and high availability.
• Monitoring & Performance Optimization:
  
  oMonitor VoIP systems for performance, security, and uptime.
  
  oConduct capacity planning and optimize system resources.
  
  oImplement call quality monitoring tools (e.g., RTCP, QoS metrics).
• Collaboration & Support:
  
  oWork with cross-functional teams to integrate VoIP systems with CRM and other platforms.
  
  oProvide Level 2/3 support for VoIP-related issues.
  
  oTrain team members on VoIP best practices and system usage.

B-Additional Accountabilities pertaining to the role
- Security & Compliance:

oEnsure VoIP security measures to prevent fraud and mitigate risks.

oEnsure compliance with industry standards and regulations (e.g., GDPR, HIPAA).

oConfigure firewalls and SBCs for secure SIP trunking.
- Database & Messaging Integration:

oIntegrate VoIP systems with databases like MongoDB and PostgreSQL.

oLeverage Redis for caching and RabbitMQ for messaging queues.

oEnsure efficient data storage and retrieval mechanisms to support VoIP services.
- Programming & Scripting:

oDevelop custom VoIP features and modules using languages like Golang, Lua, Python, C, and C++.

oAutomate repetitive tasks and processes through scripting.

oUnderstanding of WebRTC solutions for real-time communication.

Key Decisions / Dimensions

- Soft Skills:

oStrong analytical and problem-solving skills.

oExcellent communication and documentation abilities.

oAbility to work collaboratively in a team environment.

Major Challenges

- VoIP Expertise:

oStrong hands-on experience with FreeSWITCH and Kamailio.

oIn-depth knowledge of SIP protocols, RTP, and VoIP troubleshooting.

oFamiliarity with codecs like G.711, G.729, Opus, etc.
- Networking Proficiency:

oSolid understanding of networking concepts such as NAT, RTP, and STUN/TURN.

oExperience with firewall configurations and SBCs.
- Development Skills:

oProficiency in programming languages like Golang, Lua, Python, C, and C++.

oExperience with WebRTC for real-time communication.

oFamiliarity with database systems like MongoDB and PostgreSQL.

oExperience with Redis for caching and RabbitMQ for asynchronous messaging.
- Tools & Platforms:

oFamiliarity with monitoring tools like Homer, Grafana, or Nagios.

oHands-on experience with cloud platforms like AWS, Azure, or Google Cloud.

oProficiency 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:

oConfigure, deploy, and maintain FreeSWITCH and Kamailio-based systems.

oDesign scalable and reliable VoIP architectures to support business needs.

oImplement call routing, DID management, and trunk configurations.
- SIP & Call Routing:

oDevelop and manage SIP-based call routing for internal and external communication.

oTroubleshoot SIP signaling issues using tools like Wireshark or sngrep.

oOptimize routing rules for least-cost routing (LCR) and high availability.
- Monitoring & Performance Optimization:

oMonitor VoIP systems for performance, security, and uptime.

oConduct capacity planning and optimize system resources.

oImplement call quality monitoring tools (e.g., RTCP, QoS metrics).
- Collaboration & Support:

oWork with cross-functional teams to integrate VoIP systems with CRM and other platforms.

oProvide Level 2/3 support for VoIP-related issues.

oTrain team members on VoIP best practices and system usage.
- Security & Compliance:

oImplement VoIP security measures to prevent fraud and mitigate risks.

oEnsure compliance with industry standards and regulations (e.g., GDPR, HIPAA).

oConfigure firewalls and SBCs for secure SIP trunking.