edmarfo

Developed and scaled a patient management system for private clinics across Ghana using the MERN stack (MongoDB, Express.js, React, Node.js). Transitioned the frontend codebase from JavaScript to TypeScript, reducing runtime errors by 40% and improving code maintainability. Built and consumed RESTful APIs for handling sensitive patient data, ensuring compliance with data protection standards. Worked closely with product managers to translate clinical requirements into technical specifications and user-friendly features.

Contributed to the architecture and development of a decentralized cross-border payment platform using React, Next.js, and Solidity, reducing transaction fees by over 60% compared to traditional rails. Integrated Wagmi and Viem hooks for seamless wallet connection, transaction signing, and on-chain data interaction, improving user experience and developer efficiency. Engineered and audited smart contracts for staking, rewards, and multi-signature wallet functionalities using Foundry and Solidity. Collaborated with a team of 5 developers, establishing best practices for code reviews, testing, and deployment, which increased team velocity by 25%.