AchimĀ Schneider
Software Engineer at Hrmony
Berlin, Germany
Summary
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RockstarAchim Schneider is a software engineer based in Berlin with seven years' experience building systems in Rust, WebAssembly, and TypeScript, grounded by a PhD in Mathematics. He brings deep cryptographic and number-theory expertise to backend development, having implemented core elliptic-curve pairing operations and refactored multi-scalar multiplication in the widely used arkworks-rs algebra library. Comfortable bridging rigorous theory and production code, he specializes in performant finite-field and polynomial arithmetic implementations. Colleagues rely on him for clean, configurable abstractions across curve types (Bls12, BW6) and for translating advanced math into maintainable, high-performance libraries.
7 years of coding experience
Stackoverflow
247reputation
16kreached
13answers
4questions
Github Skills (16)
elliptic-curve10
rust10
cryptography10
polynomials9
algorithms8
algorithm8
data-structures8
data-structure8
union-types6
react-styleguidist6
html6
css6
typescript6
javascript6
react6
Programming languages (8)
Github contributions (5)
arkworks-rs/algebra
Dec 2022 - Dec 2022
Libraries for finite field, elliptic curve, and polynomial arithmetic
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 reviews, 5 commits, 9 PRs in 20 days
Contributions summary:Achim primarily contributed to the `algebra` library, focusing on pairing functionalities within the context of elliptic curve cryptography. Their work involved moving core functions like `multi_miller_loop` and `final_exponentiation` into configuration traits for different curve types (Bls12, BW6), and subsequently, implementing those functions to those configurations. The changes included modifying code to implement the miller loop and final exponentiation, which involves advanced concepts in finite fields and elliptic curve pairings, demonstrating a strong understanding of cryptography. Moreover, the user refactored the MSM implementation.
cryptographyarithmeticrustfinite-fieldselliptic
achimcc/codingconnects
Dec 2020 - Jan 2022
Contributions:153 pushes, 9 branches in 1 year 1 month
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