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Lourens

• I'm a multifaceted Solidity Developer with special interests in DeFi and Smart Contract Security.
• I love learning and hold a Masters in Business Administration, with an undergad Bachelors of Science (Health Sciences).
• I enjoy the combination of finance and programming that smart contracts require.

Experience

My experience crosses multiple domains: from being a registered health professional, to founding an Agritech startup, to being a Solidity Developer with mainnet contracts in production.

Aside from solidity development and smart contract auditing my interest is focused on how I could integrate smart contracts and business system design in the best way.

Projects

Freelance Solidity Developer
January 2023 - present

Development, testing and deployment of an ERC20 token to be used as Marketable Tax Credits within a local government tax jurisdiction.

Solidity Developer
June 2022 - December 2022

Creation, testing and implementation of high quality smart contracts to create and support a DAO ecosystem

The contracts included, but were not limited to:

• Avatar contracts according to the Zodiac Avatar pattern (EIP5005)
• Token contracts with taxed-transfer functionality (ERC20)
• Token contracts supporting staking, some with bonding curve implementations
• High-level DAO Controller contract, supporting donation, token whitelisting and custom index creation
• Factory contract according to the Clone Factory pattern (ERC1167)
• Proxy creation and orchestration according to the Beacon Proxy model (ERC1967)
• Governor contracts for multi-level DAO governance
• Vesting contract for partners and early contributors, with additional voting functionality

Project Owner
September 2022 - December 2022

In addition to the above:

• Leading a team consisting of a front-end engineer, full-stack engineer, a design lead and another Solidity Developer (besides myself)
• Ideation and specification of front-end wireframes for the DoinGud platform
• Daily coordination with the front-end team to translate smart contract technical specification into front-end functionality
• Responsible for coordination between the front- and back-end teams to overcome technical challenges
• Identifying challenges and providing potential solutions and feedback to the CEOs and Technical Lead
• Communicating directly with the client organization and addressing any concerns they may have

Read about this DAO project at the link below:

BuidlGuidl Contributor
March 2022 - Present

• Bit packing fundamentals and gas-comparisons
• Tax-harvesting NFTs
• SVG NFT with ERC20 token emissions
• Minimum Viable Dex and exploration of Constant Product Market Makers
• EthDenver projects for event-sponsor admin dashboard

See my article about bit packing for the guild here: