Roger Buxadera
Core Engineer at ZisK
Barcelona, Catalonia, Spain
Summary
🤩
Rockstar🎓
Top SchoolRoger Buxadera is a core engineer and mathematician-turned-developer with six years of experience focused on blockchain infrastructure and zero-knowledge systems. He has driven prover and protocol work at Polygon Labs, contributed to Nightfall privacy solutions, and now advances core engineering at ZisK, combining rigorous math grounding with hands-on production coding. Comfortable across full-stack stacks and middleware (Node.js, React, PostgreSQL, Loopback4), he excels at translating formal reasoning into reliable, efficient implementations. Roger’s trajectory—from anomaly-detection research to a Master’s in Blockchain Technologies—reflects a blend of analytical depth and practical product delivery. He thrives on coding challenges and learning new technologies, often approaching problems with the precision of a mathematician and the pragmatism of an engineer. Based in Barcelona, he brings an engineer’s curiosity to cutting-edge cryptographic and blockchain tooling.
6 years of coding experience
4 years of employment as a software developer
Master's Degree in Blockchain Technologies, Master's Degree in Blockchain Technologies at UPC School (Universitat Politècnica de Catalunya)UPC Universitat Politècnica de CatalunyaHigh School Diploma Science, High School Diploma Science at Sagrat Cor Diputació
Catalan, Spanish, English, French
Github Skills (22)
optimistic10
staking10
mono10
blockchain10
zksnark9
cpp9
cli8
javascript8
polynomials7
webassembly7
identity6
python5
assembly5
finite-field4
downgrade3
Programming languages (7)
Github contributions (5)
0xPolygonHermez/pil2-proofman
Aug 2024 - Apr 2025
Prover Manager
Contributions:18 reviews, 177 PRs, 596 pushes in 7 months
0xPolygonHermez/pil2-stark-js
Aug 2023 - Jan 2025
Stark Generator for pil2-proverjs
Contributions:2 PRs, 326 pushes, 15 branches in 1 year 5 months
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