blocbard
Blockchain Engineer | Smart Contract Developer | Full Stack Developer
Senior Blockchain Engineer with 12+ years of experience in full-stack and smart contract development. Proven expertise in building secure and scalable DeFi, NFT, and trading platforms using Solidity, Rust, React, and the latest Web3 tools including Ethers.js, Wagmi, and viem. Successfully led protocol development for DEX vaults and NFT integrations, securing over $1.5M+ in user assets. Passionate about clean architecture, performance optimization, and decentralized finance innovation.
Experience: 6 years
Yearly salary: $140,000
Hourly rate: $70
Nationality: 🇺🇸 United States
Residency: 🇺🇸 United States
Experience
Blockchain Developer
Gamma 2020 - 2022
Led protocol development, enhancing system scalability and boosting user experience across DeFi applications. Engineered Rust-based smart contracts for Gamma's vaults, securing over $1.5M in user funds and ensuring reliable execution. Designed and deployed Subgraph indexing, reducing query latency by 50% and enabling real-time on-chain analytics. Maintained backend services with Node.js, TypeScript, and GraphQL, achieving approximately 97% uptime for over 10,000 active users. Implemented advanced cryptographic algorithms and security protocols, reinforcing trust in Gamma’s DeFi infrastructure. Applied sharding strategies to optimize throughput, driving a 20% increase in transaction capacity across the network. Delivered TypeScript/JavaScript DApps aligned with protocol features, improving accessibility for retail and institutional users. Partnered with exchanges and liquidity providers, contributing to measurable adoption growth and expanded market presence.
Software Developer
Rome Blockchain Labs 2017 - 2019
Designed and deployed smart contracts for decentralized applications (DApps) and referral programs. Built and launched decentralized exchange (DEX) and NFT platforms, enhancing user engagement by approximately 20%. Developed Solidity-based contracts with secure token standards (ERC-20, ERC-721), ensuring interoperability across ecosystems. Created end-to-end Web3 applications using JavaScript, React, and Web3.js, delivering seamless blockchain integration for end users. Applied agile methodologies and iterative delivery, reducing project timelines by approximately 15% and improving team efficiency.
Full Stack Engineer
Superblocks 2014 - 2017
Built responsive web and mobile applications using TypeScript and React, ensuring scalability and performance. Designed SDKs and developer tooling, enabling seamless integration with the Superblocks API. Authored technical documentation and guides, accelerating ecosystem adoption by external developers. Delivered protocol-powered products such as explorers and dashboards, supporting enterprise use cases. Enhanced UI/UX performance across platforms, ensuring reliable, mobile-friendly user experiences.
Software Developer
Upcreatives Digital 2012 - 2013
Developed reusable React.js UI components and libraries, streamlining development and future scalability. Optimized applications for performance and accessibility across multiple devices and browsers. Built responsive front-end interfaces with HTML5, CSS3, and JavaScript for client-facing projects. Integrated RESTful APIs with front-end systems, delivering secure and data-driven web applications. Monitored performance and resolved bottlenecks, improving stability and user satisfaction.
Skills
ai
blockchain
blockchain-engineer
ethereum
golang
hardhat
javascript
node
polkadot
polygon
python
react
react-native
rust
solidity
truffle
typescript
english