Alex Klen
Member Of Technical Staff at Perplexity
United States
Summary
👤
Senior🎓
Top SchoolAlex Klen is a seasoned software engineer with 13 years of experience building large-scale, product-driven systems across Google, CloudKitchens, and AI-first startups. He excels at leading cross-functional teams, architecting microservice platforms, and shipping end-to-end integrations—having taken concepts to market in major global launches and earned promotions to staff-level roles. Recently focused on AI-native products, he’s driven zero-to-one efforts using hierarchical web automation agents and live-LLM-coded generative UIs, and has owned reliability evaluations and complex integrations like payments and voice. Comfortable across the stack—Java, TypeScript, gRPC, GraphQL, CockroachDB and data pipelines—he combines deep technical execution with program leadership and mentorship. A Waterloo software engineering alum, Alex also showcases his work and side projects on his personal site, indicating an active appetite for experimentation beyond day-to-day product work. Notably, his career blends big-tech payments and infrastructure experience with cutting-edge AI product development, making him effective at bridging research and production.
13 years of coding experience
13 years of employment as a software developer
Bachelor of Software Engineering Software Engineering, Bachelor of Software Engineering Software Engineering at University of Waterloo
Ukrainian
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (37)
multithreading10
elm10
asmjs10
rust-wasm9
jsx9
concurrency9
rust9
emscripten9
webassembly8
sublime7
postman7
web-framework7
api6
functional-reactive-programming6
reflex6
Programming languages (4)
Github contributions (5)
nelk/dotfiles
Aug 2012 - Jan 2023
Contributions:112 commits, 32 pushes in 10 years 5 months
nelk/cs488
May 2014 - Nov 2014
Contributions:169 commits in 6 months
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