Valiantsin Zavadski
Co-Founder at EVY (evy.so)
Lisbon, Lisbon, Portugal
Summary
👤
Senior🎓
Top SchoolValiantsin Zavadski is a seasoned engineering leader and founder with 13+ years of hands-on experience building scalable web and AI systems, currently co-founding EVY in Lisbon. He has a proven track record scaling startups and service businesses—from growing Rubyroid Labs to 50+ people and exiting successfully to architecting high-throughput systems at Appcast that contributed to a $70M acquisition. Valiantsin blends deep full-stack engineering (Rails, Node, React, Python, LLMs) with operational rigor, having driven test coverage from 0% to 80% and implemented CI/CD and cloud automation across AWS/GCP. He’s passionate about community and learning—teaching programming to 500+ students, founding Minsk.rb meetups and conferences, and co-hosting a tech podcast—bringing rare empathy and people-focused leadership to technical strategy. Notably, he’s been building AI-first products recently, crafting virtual AI teammates for content creators at Awerty.ai, showing a consistent pattern of turning emerging tech into practical products.
14 years of coding experience
15 years of employment as a software developer
Master's Degree Computer, Master's Degree Computer at Belarusian State University of Informatics and Radioelectronics
English, Russian, Russian, Portuguese
Github Skills (113)
python10
ai-agent9
whisper9
ai9
timestamps9
update-checker9
docker-container9
speech9
pronto9
speech-to-text9
capistrano9
asr9
timestamp9
html8
sidekiq8
Programming languages (8)
Github contributions (5)
rubyroidlabs/courses
Oct 2013 - Nov 2017
Contributions:32 commits, 2 PRs, 6 pushes in 4 years
Saicheg/pushkin-contest
Mar 2015 - Jan 2017
Contributions:6 PRs, 48 pushes, 3 branches in 1 year 10 months
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