Wilfred Chetat Y.

I built a lease insurance system that processed historical tenant lease data, helping real estate owners manage claims and minimize bad debt. Also, I improved frontend and backend integration by providing clear documentation, which reduced coordination meetings and increased frontend team productivity.

At PaySika, a fintech startup developing mobile and web-based banking solutions for French-speaking African countries, I led the development of a scalable backend system to streamline online payments and created both physical and virtual prepaid card issuing services, enabling users to make online payments without a bank account.

I led development of an expense management app backend that synchronized card transactions to QuickBooks. I also built a data analytics dashboard to improve visualization and support data-driven decision-making, and optimized electricity bill query performance by 80% by converting data storage from JSON to Apache Parquet on AWS S3.

As a consultant to Udacity educational platforms, I utilize my specialized knowledge in the field of Full Stack Development and my strong communication skills to provide project reviews and other student support services. - Provided personalized project reviews and one-on-one support for an average of 25 students per month, resulting in increased student engagement and graduation rates. - Answered students' questions on the Udacity Knowledge platform, leading to more students making progress and completing their Nanodegree.