Sergiy Kukunin
Chief Technology Officer at Spotlight Media Labs, Inc.
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolSergiy Kukunin is a pragmatic technology leader and CTO with 15+ years of hands-on experience building full-stack, high-performance systems and scaling startups to eight-figure valuations. He combines deep core CS knowledge (algorithms, concurrency) with broad polyglot expertise across Ruby, JS/TS, Python, Elixir and familiarity with C++, Go and Java, choosing the right tool for each problem. Known for shipping fast, high-impact results, he enforces rigorous code quality (habitually >85% coverage) and strong infrastructure practices spanning Linux/POSIX, networking, Docker and Kubernetes. His resume blends early-stage product engineering and DevOps (introducing Docker/Ansible at startups) with leadership roles that modernized legacy platforms and accelerated release cadence. An active open-source contributor, he has improved real-time audio tooling (opus-recorder) and authors the CuckooCode IT Circle, reflecting a practical interest in developer tooling and media/AI innovations. Based in San Francisco, he excels at translating technical complexity into business outcomes and repeatable engineering practices.
14 years of coding experience
8 years of employment as a software developer
Master's degree Computer Science, Master's degree Computer Science at Vinnytsia National Technical University
English, Russian, Ukrainian
Stackoverflow
863reputation
61kreached
16answers
6questions
Github Skills (16)
ogg10
web-audio-api10
javascript10
opus10
webassembly10
rust-wasm10
wasm-pack10
audio9
android-ndk6
oop6
capistrano6
rake6
android6
activeadmin6
ruby6
Programming languages (24)
Github contributions (5)
chris-rudmin/opus-recorder
Oct 2018 - Oct 2018
A library for encoding and decoding web audio as OggOpus.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:5 commits, 2 PRs, 7 comments in 8 days
Contributions summary:Sergiy focused on enhancing the `opus-recorder` library by implementing and refactoring core functionalities related to audio encoding and decoding. They made improvements to the worker process, ensuring encoding started only when the worker was initialized to reduce latency. Furthermore, the user addressed interface expressiveness by changing the communication of the 'done' message. The user also optimized the code by shifting from buffers to frames for handling the audio data.
ogg-opusdecodingopusoggwebassembly
Kukunin/keep-alive
Feb 2022 - Mar 2022
Help coordination to address humanity disaster in Ukraine
Contributions:79 commits, 5 PRs, 46 pushes in 3 days
addresscoordinationdisasterhumanity
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