Unit Manager - IT/Senior Unit Manager - IT

Job Purpose

VoIP Engineer (Asterisk, Kamailio) - 5-7 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 Experienceb)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.