Joshua Fitzgerald
Industrial Electrician at Radix Consulting
Greater Fort Wayne United States
Summary
👤
Senior🎓
Top SchoolJoshua Fitzgerald is an industrial electrician and cryptographer with a strong mathematical foundation and eight years of applied experience across zero-knowledge proof systems, teaching, and technical operations. He has driven research and engineering work on PLONK and Plookup implementations—contributing permutation-argument improvements to a notable Rust PLONK repo—and built circuit languages and compilers like Vamp-IR for proof-system-agnostic arithmetic circuits. As a founder at Radix Consulting and former researcher at Heliax and Lagrange Labs, he blends practical auditing of ZK libraries with novel circuit and hash-to-curve designs optimized for SNARK-friendly curves. His background in university-level mathematics education and hands-on IT management gives him an unusual knack for explaining and operationalizing highly abstract cryptographic ideas. Based in Greater Fort Wayne, he pairs academic rigor with production-grade Rust engineering and an eye for security and efficiency in ZK stacks.
8 years of coding experience
7 years of employment as a software developer
Bachelor of Science - BS Mathematics Education, Bachelor of Science - BS Mathematics Education at Huntington UniversityMaster of Science Mathematics, Master of Science Mathematics at Miami University
Github Skills (9)
rust10
cryptography10
data-structure9
algorithm9
data-structures9
algorithms9
rayon7
fft5
fftw5
Programming languages (7)
Github contributions (5)
dusk-network/plonk
Sep 2020 - Apr 2021
Pure Rust implementation of the PLONK ZKProof System done by the Dusk team
Role in this project:
Back-end Developer
Back-end DeveloperContributions:67 commits, 25 PRs, 14 pushes in 6 months
Contributions summary:Joshua primarily focused on implementing and testing features related to permutation arguments within a Rust-based zero-knowledge proof system, specifically the PLONK protocol. They added a multizip version of the product argument and subsequently developed and tested it. Further contributions included swapping out and adjusting existing permutation methods, improving the overall implementation of the PLONK system.
rustcryptographyzero-knowledgeplonk
heliaxdev/plonk
Sep 2020 - Sep 2021
Pure Rust implementation of the PLONK ZKProof System done by the Dusk-Network team.
Contributions:142 commits, 16 PRs, 63 pushes in 11 months
rust
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