IT Ops

Senior VOIP Engineer

1 Positions Lahore, Punjab

Job Description

Strong programming background especially in object-oriented design, algorithm design, problem solving, and complexity analysis.
Administration and management of SMPP / API based SMS technologies.
System administration of Asterisk PBX /IVR / Call center servers located globally.
Assist team in designing programs and databases.
Development of monitoring dashboards / tools to ensure 100% monitoring.
Work with team to perform to ensure security of all VoIP devices and servers, service quality, redundancy of voice paths and service optimization.
Analysis of all Linux based servers with respect to QoS, scalability, utilization and high availability.
Perform continuous research work on latest technologies for improving Telephony infrastructure.
Development of different application which will be integrated with telephony system to enhance monitoring and daily tasks.
Development of automation scripts in Python, PHP, Perl etc to automate different tasks and activities in the system.

Good understanding of SMPP protocol
Expertise in Javascript, NodeJS, Python, PHP, Perl, Bash etc.
Database design and SQL Queries
Hands on experience on Linux (Red-hat/CentOS).
Good understanding of API, SIP, SDP, RTP, RTCP, IAX, WS, WSS, TLS etc.
Good understanding of Asterisk technologies such as AGI, ARI, queues, conferencing etc.
Good knowledge on configuring SIP proxies and B2BUAs.
Experience troubleshooting carrier interconnection and VoIP related issues.
Hand on experience on Asterisk, Kamalio, Opensips or Freeswitch.

Specific Tools, Technologies, or Equipment Skills