Arkadiy Kossakovsky
Lead Engineer at FXR [fixer]
New York, New York, United States
Summary
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Senior🎓
Top SchoolArkadiy Kossakovsky is a Lead Engineer based in New York with 11 years of experience building user-focused software across full-stack, frontend, and AI roles. He combines a physicist’s modeling mindset—grounded in a degree in elementary particle physics—with practical expertise in Python/Django, React/Redux, and applied AI, recently leading engineering and AI work at FXR [fixer]. Passionate about life-extension tech and existential-risk mitigation, he approaches problems by first constructing deep mental models of systems before shipping solutions. A philosopher at heart, Arkadiy blends functional programming and data-science thinking with mobile and product sensibilities, having moved from academic data analysis to startup and product engineering. His background includes hands-on analytics and reconstruction work in experimental physics and startup training from Y Combinator, reflecting both research rigor and entrepreneurial drive.
11 years of coding experience
2 years of employment as a software developer
Startup School, Startup School at Y CombinatorElementary Particle Physics, Elementary Particle Physics at HGS-HIRe Summer Student Program 2014 at GSIArtificial Intelligence, Artificial Intelligence at DataRoot UniversityBachelor's degree, Elementary Particle Physics, Bachelor's degree, Elementary Particle Physics at Taras Shevchenko National University of KyivGithub contributions (5)
arkadio/unicode-tools
Feb 2015 - Apr 2015
Contributions:9 commits, 6 pushes in 2 months
kouleshoff/zulip
Jun 2024 - Jun 2024
Zulip server and web application. Open-source team chat that helps teams stay productive and focused.
Contributions:2 pushes in 11 days
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