Kacper Pietrzak
Full Stack Engineer at ElevenLabs
Warsaw, Masovian Voivodeship, Poland
Summary
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Rockstar🎓
Top SchoolKacper Walentynowicz is a Full Stack Engineer specializing in conversational AI, currently building speech and dialogue systems at ElevenLabs with a decade of hands-on coding experience since 2012. He combines deep practical experience across startups and large tech firms—from Two Sigma and Huawei to cloud-deployed ML tooling—with a Cambridge computer science background. Comfortable across the stack, Kacper has shipped production services, CI/CD pipelines and C++ libraries for performance-sensitive ML workloads, and has applied computer vision and data engineering in prior roles. He also co-founded an education-focused startup and contributed problem-setting and automated testers for programming competitions, reflecting a rare blend of product, research-adjacent engineering, and community-driven mentoring.
10 years of coding experience
9 years of employment as a software developer
Bachelor's degree Computer Science, Bachelor's degree Computer Science at Polish-Japanese Academy of Information Technology
Polish, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (64)
trpc10
t3-stack10
postgresql10
zod10
open-source10
typescript10
nextjs10
sfml10
next-auth10
prisma10
rpc-server10
turborepo10
tailwindcss10
remoting10
javascript-game9
Programming languages (8)
Github contributions (5)
pietrzakacper/RainbowSnake
Feb 2016 - Sep 2017
Contributions:13 commits, 8 pushes, 1 branch in 1 year 7 months
PiGames/Project-Nostradamus
Dec 2016 - Oct 2017
2D stealth game with zombies as oponnents, based on space station.
Contributions:119 commits, 9 PRs, 89 pushes in 9 months
space-stationgamestationstealthzombies
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