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Wei Jie Koh engineer building in crypto. kohweijie.com
Wei Jie Koh engineer building in crypto. kohweijie.com
Career
Wei Jie Koh is from San Francisco.
RTechnical Lead at Renegade from 2026 to 2026-07 in San Francisco, CAMaintained production and testnet systems for dark pools deployed on Base and Arbitrum handling US$90M per year of DEX liquidity. Improved the stability and reliability of the startup’s market-maker hedging mechanism.
Researcher at Bain Capital Crypto from 2024-07 to 2025-04 in USAExecuted technical due diligence on startups, developed an optimized CM31 number-theoretic transform library, researched Montgomery multiplication optimizations for client-side proving, and wrote about TEE-based secure infrastructure.GRResearcher at Geometry Research from 2024-01 to 2024-07 in RemoteImplemented WebGPU shaders for secp256k1/r1 and ed25519 signature verification and assisted with an audit of Aptos Keyless ZK circuits.
Researcher at Geometry from 2022-05 to 2024-01 in RemoteDeveloped the Rust prover and Solidity verifier for Semacaulk, wrote Circom circuits for secp256k1 hash-to-curve, and conducted technical research and due diligence on early-stage projects.AESoftware Engineer at AppliedZKP, Ethereum Foundation from 2019-06 to 2021-12Built Semaphore, a privacy gadget for ZK set membership proofs. Built MACI, a bribery-resistant quadratic voting system.
EFCryptography Engineer at Ethereum Foundation (Privacy & Scaling Explorations) from 2019-06 to 2021-12 in RemoteBuilt zero-knowledge circuits and EVM contracts for Semaphore and MACI, supported security audits, coordinated the Perpetual Powers of Tau ceremony, and managed grantee milestones.
CSSoftware Engineer at ConsenSys Singapore from 2018-05 to 2019-06
Software Engineer at Consensys from 2018-05 to 2019-06 in SingaporeDeveloped EVM smart contracts for on-chain trading of security tokens and collaborated with ConsenSys Diligence on a security audit.