Smart Contract Engineer specializing in EVM-based protocols, upgradeable contract architectures, and on-chain systems at scale. I design and deploy production-grade contracts that power real user activity, from mobility networks to token incentive systems. Over the past several years, I’ve led the development of multiple on-chain components on Polygon and Ethereum, including: • Upgradeable smart contract systems using UUPS proxies, beacons, and CREATE2 • Large-scale NFT protocols (180k+ NFTs minted, 80k+ holders) • Staking, vesting, and rewards mechanisms securing over 25M tokens (~$2M USD) • Developer-facing tooling, streamlined integration flows, and contract SDKs I work primarily with Solidity, Typescript, Hardhat, Foundry, and modern security/architecture patterns to ensure protocols are maintainable, efficient, and safe. I’m passionate about building systems that connect the physical and digital worlds, designing primitives that developers can build on top of, and pushing blockchain infrastructure toward real-world adoption. Always open to collaborating on challenging engineering problems and impactful Web3 products.

Lorran Sutter

Smart Contract Engineer specializing in EVM-based protocols, upgradeable contract architectures, and on-chain systems at scale. I design and deploy production-grade contracts that power real user activity, from mobility networks to token incentive systems. Over the past several years, I’ve led the development of multiple on-chain components on Polygon and Ethereum, including: • Upgradeable smart contract systems using UUPS proxies, beacons, and CREATE2 • Large-scale NFT protocols (180k+ NFTs minted, 80k+ holders) • Staking, vesting, and rewards mechanisms securing over 25M tokens (~$2M USD) • Developer-facing tooling, streamlined integration flows, and contract SDKs I work primarily with Solidity, Typescript, Hardhat, Foundry, and modern security/architecture patterns to ensure protocols are maintainable, efficient, and safe. I’m passionate about building systems that connect the physical and digital worlds, designing primitives that developers can build on top of, and pushing blockchain infrastructure toward real-world adoption. Always open to collaborating on challenging engineering problems and impactful Web3 products.

Available to hire

Smart Contract Engineer specializing in EVM-based protocols, upgradeable contract architectures, and on-chain systems at scale. I design and deploy production-grade contracts that power real user activity, from mobility networks to token incentive systems.

Over the past several years, I’ve led the development of multiple on-chain components on Polygon and Ethereum, including:
• Upgradeable smart contract systems using UUPS proxies, beacons, and CREATE2
• Large-scale NFT protocols (180k+ NFTs minted, 80k+ holders)
• Staking, vesting, and rewards mechanisms securing over 25M tokens (~$2M USD)
• Developer-facing tooling, streamlined integration flows, and contract SDKs

I work primarily with Solidity, Typescript, Hardhat, Foundry, and modern security/architecture patterns to ensure protocols are maintainable, efficient, and safe.

I’m passionate about building systems that connect the physical and digital worlds, designing primitives that developers can build on top of, and pushing blockchain infrastructure toward real-world adoption. Always open to collaborating on challenging engineering problems and impactful Web3 products.

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Experience Level

Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate

Work Experience

Software Engineer
March 1, 2022 - November 20, 2025
Designed and deployed upgradeable smart contracts (Polygon) for an on-chain vehicle mobility protocol using a simplified diamond pattern and multiple UUPS proxies, with 180k+ NFTs minted and 80k+ holders. Implemented staking and vesting contracts securing over 25M tokens (~$2M USD) with gas-optimized execution and security best practices. Automated treasury operations as an active Gnosis Safe multisig signer by developing Node CLI tooling to streamline transaction submission and reduce operational risk. Deployed cross-chain ERC-20 tokens (Polygon, Ethereum, Base) and bridged to Solana via Wormhole, ensuring seamless asset transfer. Integrated Uniswap V3 price oracles to calculate real-time token pricing for on-chain operations. Created and maintained a TypeScript SDK (viem, ethers.js) to accelerate integration by internal and external teams. Built meta-transaction flows and smart-account signature support (Zero Dev) to enable secure, non-custodial user interaction. Developed backend se
Smart Contract Engineer at Upstate Interactive
March 1, 2022 - March 1, 2022
Built DeFi protocols on Avalanche integrating Uniswap V2, Chainlink, and Compound for liquidity, pricing, and interest generation, achieving 100% unit test coverage to prevent regressions. Performed security analysis using MythX and Slither, proactively identifying and fixing vulnerabilities before deployment.
Blockchain Intern at George Brown College
December 1, 2020 - December 1, 2020
Led Ethereum game prototype and built a ReactJS streaming dashboard.
Student Tutor at George Brown College
December 1, 2020 - December 1, 2020
Supported Full Stack Development I-IV courses, assisting students with assignments and debugging.
Junior Software Developer at Relevo
December 31, 2019 - December 31, 2019
QA automation, web crawlers, and performance testing.

Education

Advanced Certificate in Blockchain Development at George Brown College
January 11, 2030 - December 1, 2020
Bachelor of Engineering in Computational Engineering at Federal University of Juiz de Fora
January 11, 2030 - July 1, 2018
Bachelor of Science in Exact Sciences at Federal University of Juiz de Fora
January 11, 2030 - July 1, 2018

Qualifications

Advanced Certificate in Blockchain Development
January 11, 2030 - December 1, 2020

Industry Experience

Software & Internet, Computers & Electronics, Professional Services

Experience Level

Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate

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