cbpas
Full Stack Engineer
Software Developer with 5+ years of experience, including 2 years focused on Solidity and Web3. Proven expertise in full-stack development, specializing in responsive web applications with Vite and robust backend systems with NodeJS. Skilled in integrating blockchain technologies for EVM Dapps (viem, ethers.js) and Solana Dapps (solana/kit).
Experience: 5 years
Yearly salary: $60,000
Hourly rate: $30
Nationality: 🇵🇠Philippines
Residency: 🇵🇠Philippines
Experience
Full-Stack Engineer
Onyx 2025 - 2026
Full-Stack Architecture: Engineered the end-to-end infrastructure for a decentralized launchpad, managing the React/Vite frontend, Node.js/Postgres backend, and a custom Envio indexer. Hybrid Storage System: Architected a dual-layer storage solution using Arweave for immutable token metadata and AWS S3 for media, balancing decentralization with UX. Custom Indexing Engine: Built an Envio HyperIndex to overcome RPC rate limits, utilizing dynamic factory listeners to automatically index new token launches and generate real-time OHLCV charts. Investor Dashboard: Developed the frontend interface to visualize complex vesting schedules and refund logic, implementing batched RPC calls (Viem) to reduce network load. Cross-Chain Migration (Solana): Led the architectural transition of the protocol from Base (EVM) to Solana, reimplementing core vesting logic and integrating Solana wallet adapters for the v2 iteration.
Frontend Engineer
Clementine's Nightmare 2024 - 2025
Diamond Proxy Architecture: Built the marketplace frontend for an NFT trading card game on Base, interfacing with a modular Diamond (EIP-2535) smart contract system spanning Marketplace, ERC721/ERC1155, Rewards, and CardPack facets via Ethers.js. Gamification Engine: Engineered a full engagement layer including daily login streaks, task-based reward points, referral tracking, and a card pack purchase flow with multi-payment support (USDC/ETH/Rewards), driving user retention and on-chain interaction. Server-Driven Data Layer: Architected a hybrid rendering pipeline using Next.js 14 Server Actions for secure data fetching and React Query for client-side state, with cookie-based JWT auth (Thirdweb) and middleware-level NFT view tracking for analytics. Real-Time Marketplace UX: Developed the listing, offer, and trade interfaces with optimistic mutations (React Query), and collection-level analytics (floor price/volume with 1H–1M time-series diffs).
Full-Stack/Smart Contract Developer
Odds & Ends (Part-time) 2024 - 2025
Dan XRD (Nov 2024): Developed a staking web application for a native Radix fungible token, integrating Rust-based Scrypto smart contracts with a responsive frontend. The NFT Arcade (Jul - Oct 2024): Engineered cross-chain frontend and smart contract logic for an NFT marketplace on the SKALE network, specializing in secure token bridging infrastructure. Fantasy Friends (Feb - Jul 2024): Designed automated token airdrop pipelines and implemented proxy-based smart contract upgradeability to future-proof the protocol's architecture alongside UI enhancements.
Smart Contract Developer
Arx Research Inc. 2023 - 2024
Core Protocol Development: Authored the Decurity-audited 'Project Registrar' and 'Enrollment Manager' smart contracts, establishing the non-custodial infrastructure for the Ethereum Reality Service (ERS). Frontend Library Engineering: Architected lib-ers, the official frontend library for decentralized chip resolution, managing core ERC-3668 (CCIP Read) interactions and leading the web3 stack migration from Ethers v5 to Viem. Hardware-to-Chain Integration: Developed full-stack Next.js/Redis applications bridging physical NFC hardware wallets (HaLo Chips) with EVM environments, including a mobile scanner flow to generate on-chain proof of custody for ERC-721 tokens.
Blockchain Engineering Fellowship
RareSkills 2022 - 2022
Highly selective intensive fellowship focused on advanced EVM mechanics, gas optimization, and smart contract security. Bare-Metal Engineering: Re-implemented the entire ERC-1155 token standard using purely Yul (Assembly) to achieve highly optimized gas efficiency. Advanced Architecture: Designed and deployed complex proxy patterns, clone factories, and metamorphic contracts, successfully auditing and exploiting vulnerabilities in Ethernaut and Damn Vulnerable DeFi environments.
Software Developer
Vyersoft 2021 - 2022
Full-Stack DApp Development: Engineered the end-to-end minting application for the Spike NFT project, integrating a React.js frontend with a Node.js and Firebase backend to securely manage token metadata and real-time state synchronization. NFT Staking Infrastructure: Developed the web interface and backend state-tracking logic for the project's staking mechanism, allowing users to securely lock their assets and monitor their yield in real-time.
Skills
javascript
node
rust
solidity
typescript
full-stack
english