Baah Kusi

Fellow of the Blockchain Engineers Alliance (BEA), contributing to vendor-neutral technical guidance and professional development for blockchain engineers, with focus on system design, security, and responsible adoption of decentralized systems.

Lead Fullstack Web3 Developer, partnering directly with the Chief Product Officer to drive product development and technical execution. Lead end-to-end implementation of core platform features across frontend and backend, with a focus on scalability, performance, and reliability. Built and contributed to Web3 infrastructure and applications, including systems related to Real World Assets (RWAs), bridging on-chain and off-chain functionality. Translated product vision into robust technical solutions, collaborating across teams to deliver high-impact outcomes. Introduced improvements in architecture, development processes, and system design to support long-term product growth.

Led a team of over 20 engineers in building and scaling Ejara's blockchain wallet, enabling more than 250,000 users to trade crypto assets across multiple chains. Architected and deployed a tokenized bond system based on ERC-3643 and ERC-20, allowing fractional purchases of government bonds; launched on Tezos, Ethereum, and StarkNet, with millions of dollars in transaction volume. Designed and implemented a high-performance blockchain indexer that ingests and processes data in real time from 10+ blockchains, supporting a combined throughput of ~100,000 transactions per second. I drove R&D innovation across product, protocol, and infrastructure layers to position Ejara as a leading crypto platform in Francophone Africa. Led the development of a robust system that enables users to securely back up their seed phrases to the cloud, with a focus on delivering a seamless user experience. The project successfully balanced user-friendly design with strict security measures.

Built and integrated APIs around AI models using FastAPI (Python) and Express (Node.js), enabling utility companies and government clients to interact seamlessly with AI-powered tools via a Vue.js frontend. Optimized image rendering pipelines to support fast, smooth viewing of large-scale datasets, critical for infrastructure inspections and asset monitoring. Engineered a high-throughput upload system capable of handling gigabytes of images and zipped files with zero failure, improving operational reliability for B2B and B2G customers.

Maintained and enhanced a custom CMS platform serving 1,000+ law firms, using Vue.js and Django. Built an internal tool that processed unstructured data from tens of thousands of legal websites daily, applied clustering with ML algorithms, and provided actionable market insights to leadership. Led improvements that boosted platform reliability and enabled faster decision-making for sales and strategy teams.

Built and delivered custom websites and landing pages for 50+ clients using HTML, CSS, and JavaScript. Developed and sold two commercial web-based desktop applications to over 20 customers, using Django, jQuery, Bootstrap, and Webix UI. Gained hands-on experience in client communication, rapid prototyping, and delivering end-to-end solutions under tight constraints.

Reinforce lessons presented by professors by reviewing material with students one-on-one or in small groups. Help lecturers with recordkeeping, such as tracking attendance and calculating grades under supervision. Help lecturers prepare for lessons by getting materials ready or setting up equipment, such as computers. Provide tutorial studies to undergraduate students as needed and assist with computer programming.