onspeedhp
Blockchain Developer
Senior smart contract engineer with 3+ years of production experience on Solana, specializing in Rust-based programs, DeFi primitives, token standards (SPL, Token-2022), DAO/governance systems, and smart-wallet architectures. Strong background in SDK and portal development, with additional hands-on experience building Solidity/EVM smart contracts (ERC20/ERC721, vesting, approval-based payment flows) for cross-chain and DeFi products.
Experience: 3 years
Yearly salary: $0
Hourly rate: $30
Nationality: 🇻🇳 Vietnam
Residency: 🇻🇳 Vietnam
Experience
Senior Smart Contract Developer
Bitfi Swap (Caliber Venture) 2024 - 2025
Implemented Solana-side programs & integration scripts, aligning behavior with existing EVM components for consistent cross-chain UX. Wrote developer docs and reference examples; analyzed program/CPI patterns for deterministic execution and safer key management. Collaborated on integration points (L2 comms/MPC/PMM) and data-model parity; prepared the path for indexers/custom RPC queries.
Smart Contract Developer
Kyupad (Launchpad) 2024 - 2024
Shipped cNFT minting and IDO programs; managed collections, whitelists, KYC/verification flows; authored security & unit tests. Integrated vesting via Streamflow SDK; standardized IDO configs for repeatable deployments. Worked closely with Jupiter APIs and Raydium liquidity during price/route estimation and post-launch liquidity tasks.
Smart Contract Developer
DCarbon 2024 - 2024
Built programs for IoT device attestations; implemented secp256k1 signature verification on-chain. Implemented Token-2022 & semi-fungible asset flows; launched a marketplace for device/credit trading.
Full‑stack Developer
Syncvote (Hanoi) 2023 - 2024
Developed and maintained Solana smart contracts for governance and voting products. Built SDKs and frontend portals to abstract on-chain complexity for users. Worked closely with product and backend teams to ship production features.
Skills
node
react
rust
typescript
solana
english
japanese