jesse

Blockchain Engineer

6 years of experience in blockchain development and 4 years in blockchain underlying system software development. Extensive knowledge of Solana, Fabric, and Cosmos architectures. Strong expertise in consensus algorithms, including Raft, PBFT, PoS, PoH, and PoW. Proficient in Rust, Golang, and Java development. Deep understanding of Solana smart contract development, experience with Solidity and Move smart contracts, and familiarity with NFT marketplaces and DEX contracts. Currently focused on Rust and Golang development. Proficient in KV databases like LevelDB and RocksDB, understanding of their underlying mechanisms. Familiar with OS principles and communication protocols, including Libp2p and Kadmelia. First Prize Winner in the Blockchain Security and Attack Competition organized by China Academy of Information and Communications Technology (CAICT). Humble, inquisitive, and eager for challenges.


Experience: 3 years

Yearly salary: $80,000

Hourly rate: $40

Nationality: 🇨🇳 China

Residency: 🇨🇳 China


Experience

Blockchain Engineer
Sichuan Shengqu Times Network Technology Co., Ltd.
2022 - 2024
Conducted research on Solana contracts and NFT marketplace contracts (Magic Eden). Studied the PoH and PoS consensus algorithms. Outlined the Solana transaction lifecycle, covering transaction receipt, signature verification, execution, world state changes, node broadcasting, and transaction finalization. Investigated BPF virtual machine, smart contract deployment, and inter-contract calling mechanisms. Developed domain, NFT, and multi-signature smart contracts, including relevant CLI tools and testing suites. Researched Solana account structures and node networking operations. Implemented secondary indexing for new contract accounts and developed corresponding RPC interfaces. Identified causes of memory overflows due to secondary indexing and proposed effective solutions.
Blockchain Engineer
China Electronics Technology Network Information Security Co., Ltd.
2020 - 2022
Modified and optimized Hyperledger Fabric, adapting it for domestic ARM servers and enhancing performance. Conducted performance tuning and consensus algorithm research. Developed a high-availability transmission protocol and improved SQL query performance. Rebuilt Fabric architecture to address high-concurrency issues. Developed custom cryptographic modules for Fabric and hardware encryption integration. Led research on alternative public chains and consortium chains for technology comparison.
Data Collection Engineer
Mike Bio Co., Ltd.
2019 - 2020
Developed instrument data collection protocols using Protobuf. Built backend data visualization system interfaces and optimized SQL queries.
Java Developer
Chongqing Diken Blockchain
2017 - 2019
Developed modules for exchange systems and instrument cloud systems. Implemented RESTful APIs and WebSocket technologies.

Skills

solana
chinese-mandarin