Open to opportunities

Reza Shamim

@rezashamim

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Senior VoIP and Systems Engineer specializing in Asterisk, Vicidial, and Linux infrastructure.

Malaysia

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What I'm looking for

I seek senior roles focused on VoIP/telephony and Linux systems where I can lead deployments, improve uptime, integrate CRM/telephony, and drive operational cost reductions in collaborative teams.

I am a Senior VoIP and Systems Engineer with over 10 years of hands-on experience designing, deploying, and maintaining enterprise telephony solutions.

I specialize in Asterisk/Vicidial/FreePBX environments, Linux server administration, VoIP protocol tuning (SIP/IAX), and CRM integrations to optimize contact center operations and reduce operational cost.

My accomplishments include migrating on-prem VoIP to hybrid cloud, improving uptime through monitoring automation, and delivering contact center implementations that increased call efficiency and lowered costs.

I am a proactive problem-solver and communicator who documents processes, collaborates with security teams for compliance, and continuously develops skills in cloud infrastructure and VoIP security.

Experience

Work history, roles, and key accomplishments

Current

Senior Telephony and System Expert

Current

TDCX (MY) Sdn. Bhd.

Nov 2023 - Present (1 year 10 months)

Lead configuration and support of Asterisk/Vicidial and FreePBX VoIP systems, administered Linux servers to maintain high-availability telephony infrastructure, and integrated Genesys VoIP with CRM to optimize contact center operations, achieving a 15% cost reduction from hybrid cloud migration.

Asterisk VICIdial Linux Genesys CRM High Availability Shell Scripting

Telecom and CRM Developer

SRG Asia Pacific

Feb 2020 - Nov 2023 (3 years 9 months)

Maintained Linux servers and dialer systems (Vicidial/FreePBX), enhanced call routing and reporting, and delivered technical support that improved contact center efficiency, including a FreePBX deployment that boosted call efficiency by 20%.

VICIdial Linux Server Administration Routing Reporting Tools MySQL Troubleshooting Documentation

Telephony Engineer

Brandt International

Oct 2017 - Feb 2020 (2 years 4 months)

Managed and optimized Asterisk/Vicidial systems, provided user training and technical assistance, and performed regular patching and performance monitoring to ensure reliable telephony operations.