HB

Hedge Bitcoin

Full-Stack Solana Engineer

hedgebitcoin@protonmail.com
GMT+7, Thailand
tetrac.xyz

Professional Summary

Full-Stack Solana Engineer with 5+ years shipping production Web3 — from custom Anchor on-chain programs (PDAs, access control, protocol fees) to consumer-facing Solana apps and USDC payment rails. I build Solana-first UX where users onboard with biometrics, email, or Phantom and never touch a seed phrase, while EVM stays invisible plumbing. Deep experience in real-time social products, on-chain payments and custodial escrow, and PWA-first mobile delivery.

Technical Skills

Solana

Anchor / Rust programsPDAs@solana/web3.js@solana/kitSPL Token / USDCWallet AdapterPhantom + LedgerBiometric Seed-Vault Logintweetnacl signingCustodial Escrowx402 / MPP micropaymentsHelius RPC

Frontend Development

React 19Next.js 16TypeScriptTailwind CSSZustandReact QueryPWA

Backend Development

Node.jsExpressNestJSPostgreSQLRedis / UpstashGraphQLREST APIsMicroservices

Mobile & Real-time

PWA (installable, offline-capable)Mobile-first responsiveLiveKit audio/videoReal-time reactionsIPFS / Pinata

Cross-chain (EVM plumbing)

SolidityEthers.jsHardhatOpenZeppelinWagmiViemERC-20 / 721

DevOps & Tools

DockerVercelGitHub ActionsJestGit

Professional Experience

Founder & Full-Stack Solana Engineer

EchoBlocks — echoblocks.xyz

2026 - Present
  • • Authored the on-chain program from scratch in Anchor (ShadowSpace): PDA-based post & community accounts, access control, a configurable on-chain protocol fee, rent-reclaiming account close, and SPL-token community gating — tested on localnet + devnet, shipped devnet → mainnet via anchor upgrade
  • • Building a Solana-native social app: live audio rooms/communities (LiveKit), on-chain posts, token-gated access, and creator monetization
  • • Seed-phrase-free onboarding via wallet-adapter + biometric seed-vault login, so users join with a passkey and never handle key material
  • • Full stack on Next.js 16 / React 19 with @solana/kit + @solana/web3.js, IPFS media via Pinata, and Redis/Upstash state
  • • Program IDL synced into a typed client SDK; RPC probes and integration tests for reactions and community teardown
Live at echoblocks.xyz

Full-Stack Solana Engineer

tetrac.xyz (formerly TradingToolCrypto)

2025 - Present
  • • Built a Solana-first consumer UX: users onboard with biometrics (seed-vault), email, or Phantom/Ledger and never handle a seed phrase — wallet bundles generated client-side, secrets encrypted server-side, decrypt-to-sign per transaction
  • • Shipped USDC-on-Solana payment rails: subscription billing and pay-per-request API metering (x402 / Machine Payments Protocol) — 402 challenge → USDC settlement → on-chain receipt
  • • Built USDC-wagered PvP with custodial Solana escrow (server-side signer, idempotent lock-guarded settlement); simulateTransaction before every signature
  • • Delivered the whole product as an installable, mobile-first PWA
  • • Architected a unified multi-exchange trading API (CEX + DEX) with real-time data, plus web-LLM, X, and Telegram integrations
  • • Kept EVM as invisible plumbing — email/passkey users auto-sign EVM operations silently behind the Solana-only surface
Github Repos on request

Full-Stack Web3 Developer

Defi: AMM + IDO

2024
  • • Solidity: Multi-Dex On-chain DCA
  • • On-chain Oracle for FE
  • • Solidity:IDO with liquidity pool generation
  • • NextJS: AMM with NFT marketplace and IDO platform
Github Repos on request

Backend Web3 Developer

Defi AMM:NFT Startup

2021 - 2023
  • • VC Backed: Flow Ventures, HashKey Capital, NGC, and Wintermute
  • • Developed AMM with NFT utilities with 1,000+ users and $1.5M+ TVL
  • • On-chain DCA solidity smart-contracts and UI integration
  • • Created ERC-721 NFTs with smart contract integration for a trading fee discount mechanism
  • • Built Node.js/Express/GraphQL for frontend and Telegram app: tvl, apr, swap volume and user activities
Github Repos on request

Solidity OpSec

Defi Portfolio Management

2021
  • • Oversee 300+ mil in client managed TVL within defi protocols
  • • Research Defi protocols, unit tests on smart-contracts, SC security audits, and bytecode verification
  • • Created market making algorithm for CEX Token listing
Company Name on request

Full-time Trader and Quant

Personal Capital

2010-2020
  • • Discretionary and systematic trading systems
  • • Quantitative analysis on Forex and Crypto markets
  • • C++ robot framework: integration with crypto exchanges(TradingToolCrypto)
  • • C# robot framework: Systematic strategies for cTrader .Net platform
  • • Node.js/Typescript Telegram framework: Multi-user trading app with integration to multiple crypto exchanges for futures/derivatives trading.

Featured Projects

EchoBlocks — echoblocks.xyz

Solana • Anchor • Next.js 16 • LiveKit

Solana-native social app — live audio rooms, on-chain posts, token-gated communities, and creator monetization. Backed by a custom Anchor program (ShadowSpace) with PDA accounts, access control, on-chain protocol fees, rent reclamation, and SPL token gating; wallet-adapter + biometric seed-vault login on the frontend.

LiveProductionVisit

Only Oil

Solana • Pacifica • Next.js 16 • WebSockets

Real-time Solana perps market-data & trading dashboard integrating Pacifica (Solana perpetual DEX) — live feeds over WebSockets, a background data collector, and Recharts visualizations, with wallet-adapter connect and Redis/Upstash caching.

LiveSolanaVisit

Unified Robot Framework

C++

An easy trading wrapper/sdk to build trading functions or fully automated trading systems across multiple exchanges.

LiveProductionOpen Source

AMM, NFT, IDO platform

Solidity • React • Nodejs

Decentralized trading market with automated market maker and Initial Direct Offering with creation of liquidity pools.

BetaInnovative

Education & Certifications

Liberal Arts Degree

Long Beach, CA

2010 - 2016

Focus on statistics, math, and economics.

Certifications

  • • Chainlink Developer Expert