Bob Niu

Blockchain Engineer

Beijing, China

🟢Aping In

10+ years of development experience with 8 years focused on blockchain engineering. Rust is the primary technology stack, with deep involvement in node development, virtual machine implementation, and toolchain building for multiple public chains and Layer2 platforms. Extensive EVM ecosystem experience covering L1 contracts, cross-chain Bridges, and DeFi protocols.

Work Preferences

Salary

USD 160,000 – 200,000

Skills

Rust10/10

Solidity9/10

Smart Contracts9/10

Layer2 / Rollup9/10

Node Development9/10

EVM Development (9/10)Plonky2 (8/10)C/C++ (8/10)Cairo (Starknet) (8/10)Circom (8/10)Circuit Design (8/10)Cross-chain Bridge Development (8/10)DeFi Protocols (8/10)ZK-SNARK / ZKVM (8/10)Halo2 (7/10)Solana / SVM (7/10)Go (7/10)Move (Sui) (6/10)SQL (5/10)Python (5/10)

Work Experience

Blockchain Engineer

Iron Fish

Oct 2025 — Present

Leads the design and implementation of the SuiFish configurable privacy protocol on the Sui chain (Move + Circom).

Blockchain Engineer

Qtum Chain & Ola & Fiamma

May 2021 — Sept 2025

Designed and developed multi-chain universal transaction module in Rust supporting Ethereum/Solana/Monad/Babylon. Developed Bridge contracts in Solidity with light client verification and LayerZero integration. Implemented transaction existence proof Prover service (Risc0/SP1). Developed OlaOS node program, Rust SDK, VM circuits and Prover using Plonky2. Led L1 Solidity contract design and auditing for ZKSwap/ZKSpace, participated in zkEVM design and research.

Blockchain Engineer

Huobi Global

Jan 2021 — May 2021

Built Plonk circuits using Rust (Bellman framework) implementing AMM constraint systems for EdgeSwap Ethereum Layer2. Developed Ethereum L1 contracts in Solidity for proof verification, state synchronization, and user deposits/withdrawals.

Blockchain Engineer

Oracle Chain

Apr 2018 — Jan 2021

Chain-level development in C++/Go/Solidity across multiple projects including Monero-Classic PoS extension, Onlychain EVM integration, Vnscoin Ethereum secondary development, and Zero-EOS confidential transaction chain. Built algorithmic stablecoin DApp, privacy transaction module based on Tornado Cash, anonymous voting system, and multiple EOS Dapps with 6,000+ users per project.

Software Engineer (Core Module)

Huorong Security

Jan 2012 — Dec 2018

Core module development in C++ with over 20 million users. Early Web2 experience.

Software Engineer

Dayang Technology

Jan 2012 — Dec 2018

Participated in developing broadcast live transmission system used by 200+ TV stations.

Education

Beijing University of Chemical Technology

Bachelor · Communication Engineering

2008 – 2012