Vladimir Klimontovich
Founder at Jitsu
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolVladimir Klimontovich is a founder and hands-on engineering leader with 10+ years building data-intensive platforms and startups, currently leading Jitsu (YC S20), an open-source data collection platform. He combines deep systems and backend expertise from roles building ad-tech and analytics infrastructure (IPONWEB) with operator experience scaling GetIntent from idea to a 60+ person company across two countries. A full-stack practitioner, he recently contributed telemetry integrations to the popular Cal.com scheduler, implementing a useTelemetry hook and privacy-minded data masking for production observability. Vladimir is comfortable moving between coding, architecture, hiring, and operations, and brings a pragmatic focus on performance and measurable instrumentation. He dropped out of Moscow State University studying mathematics and later sharpened his startup playbook at Y Combinator, a trajectory that reflects both technical depth and entrepreneurial grit.
10 years of coding experience
13 years of employment as a software developer
Summer 2020 batch, Summer 2020 batch at Y CombinatorDropped out Mathematics, Dropped out Mathematics at Moscow State University
Stackoverflow
7reputation
0reached
1answer
0questions
Github Skills (14)
typescript10
javascript10
nextjs10
typescripts10
react10
typescript-types10
safari6
iframe6
facebook6
tailwindcss4
turborepo3
open-source3
zod3
next-auth3
Programming languages (6)
Github contributions (5)
calcom/cal.com
Apr 2021 - Jun 2022
Scheduling infrastructure for absolutely everyone.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:7 reviews, 7 commits, 6 PRs in 1 year 1 month
Contributions summary:Vladimir's primary contribution focused on implementing and enhancing telemetry within the Cal.com application. They integrated the Jitsu telemetry service, creating a `useTelemetry()` hook and tracking various user interactions like page views, bookings, and time selections. Furthermore, the user updated the Jitsu library version and implemented data masking to protect sensitive information within the telemetry data. These changes span across multiple files, including components and pages, showcasing the developer's full-stack capabilities. The user consistently used telemetry events, demonstrating their ability to monitor user interactions.
tailwindcssturborepotrpcprismascheduling
vklimontovich/next-collect
May 2022 - Aug 2022
NextCollect is a Next.js framework for reliable collection of user behavioral data
Contributions:1 release, 63 commits, 2 PRs in 2 months
next-jsreactjs-frameworkreliablebehavioral
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