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Tanvir Islam
@tanvir_nabil
Level 2
Asterisk VoIP Engineer AI Voice Systems and IVR Expert
Bangladesh
English, Bengali
About me
I am an Asterisk VoIP and AI Voice Systems Engineer with 6+ years of experience building call center platforms, IVR systems, and real-time communication solutions. I specialize in Asterisk, SIP, WebRTC, and AI voice pipelines (STT, TTS, LLM). I can design, develop, and optimize scalable voice systems, automation workflows, and API integrations. If you need a reliable VoIP or AI voice solution, I deliver production-ready results.
Skills
Tanvir Islam
$30/hour
Offline •
Average response time: 1 hour
See my services
VoIP and Telephony
I will develop voip pbx based on asterisk
VoIP and Telephony
I will develop custom voip vas applications with asterisk, that fit your business
Want to work on an hourly basis?
Tell Tanvir Islam what you need.
$30
/
hourPortfolio
Work experience
Senior Software Engineer VoIP and AI Systems
Solution Hub Technologies • Full-time
Aug 2022 - Present • 3 yrs 9 mos
I design and develop Asterisk based telephony systems and AI powered voice solutions. My work focuses on building scalable call center platforms, IVR systems, and real time communication applications. Key work includes: Asterisk and VoIP system architecture IVR and call routing design AI voice systems using STT, TTS and LLM API and CRM integrations Cloud deployment and system optimization I deliver reliable and production ready solutions for high volume communication systems.
VoIP Engineer IPTSP Core Network
Ranks ITT Ltd. • Full-time
Mar 2019 - Aug 2022 • 3 yrs 5 mos
Worked on enterprise VoIP systems and telephony infrastructure using Asterisk, FreePBX and Issabel. Responsibilities included: SIP trunking and DID routing Call center system setup and maintenance IVR configuration and dialplan development AMI and AGI based automation Troubleshooting call quality and routing issues Focused on delivering stable and efficient communication systems.
26 Reviews
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Rating Breakdown
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1-5 out of 26 Reviews
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silvermindsbpo
Repeat Client
Dominican Republic
Tanvir again delivered really fast and accurately as requested. Highly recommended !
Seller's Response
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silvermindsbpo
Repeat Client
Dominican Republic
Tanvir delivered quickly and on schedule. I’ve collaborated with him for several years, and his consistency, expertise, and professionalism have always stood out. I highly recommend him.
Seller's Response
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silvermindsbpo
Repeat Client
Dominican Republic
Tanvir is just a pro!, I'd definitely continue working with this freelancer.
Seller's Response
Helpful?
pixidi
Canada
Helpful?
saifgee1
Jordan
Such a great developer. I will definitely hire him back again. He did everything I wanted and more
Helpful?
