Denys Pozniak
VoIPOps Engineer at Kwebbl
Kyiv, Ukraine
Summary
👤
Senior🎓
Top SchoolDenys Pozniak is a VoIPOps Architect with over 8 years of focused VoIP and DevOps experience and a continuous IT career dating back to 2005, beginning with FreeBSD and Cisco networking. He designs and runs carrier-grade voice platforms using Kamailio/OpenSIPS, FreeSWITCH/Asterisk, RTP proxies and HOMER, and combines that domain expertise with cloud-native tooling such as Kubernetes, Docker, Terraform, Ansible and ArgoCD. Certified CCNP/CCDP/CCVP and Iskratel SI3000 trained, he has hands-on telecom signalling experience across SIP, SIP-I/T, SS7 and H.323 from projects at Iskratel and carrier environments. Based in Kyiv, he blends deep telecom protocol knowledge with modern DevOps practices to deliver scalable, observable voice systems—his GitHub quip, "I make people talk — with SIP, not small talk," hints at a pragmatic, operator-first mindset. Not obvious from titles alone: his background in radiophysics and early embedded/microcontroller work gives him a systems-thinking edge when architecting low-level signalling and high-level orchestration.
8 years of coding experience
10 years of employment as a software developer
Radiophysics faculty, Computer Sience (Automation of scientific research), Master, Radiophysics faculty, Computer Sience (Automation of scientific research), Master at Taras Shevchenko National University of KyivRadioelectronics faculty, Development of electrical schemes, Bachelor, Radioelectronics faculty, Development of electrical schemes, Bachelor at Chernihiv Radio Mechanical School
English, Russian, Ukrainian, Polish
Github Skills (58)
kamailio10
expressjs10
telephony10
voip10
sip10
raspberry10
targets10
unlock10
webrtc10
transformation10
freeswitch10
server-core9
opensips9
sip-server9
hardware9
Programming languages (6)
Github contributions (5)
denyspozniak/ngcp-rtpengine
Aug 2019 - Dec 2022
Contributions:29 pushes, 1 branch in 3 years 3 months
denyspozniak/kamailio-k8s-argocd
Nov 2024 - Mar 2025
Contributions:55 pushes in 4 months
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