Nana Koduah Frimpong

I made a rewrite of a legacy non-SaaS Java 7, jQuery, and PostgreSQL software into a SaaS base multi-tenancy software with Node.js, React/Redux, and PostgreSQL. I also migrated existing clients' data with over 24,000 employee records and hundreds of thousands of payroll records into the new project. Later, I massively improved the performance of the payroll generation by rewriting payroll engine logic into a highly optimized PostgreSQL function. I developed a report module and a corresponding configurable page that will allow users to run any reports they desire.

To help Opportunity International Savings and Loans (OISL) extend its financial services to its customers digitally, in an era where smartphones were not popular, OISL resorted to a USSD application. This application had an API integration with all four telcos in the country. Customers of the bank dial a short code provided by the telco to access the application. Customers were able to perform the following transactions on the app, internal bank transfers, withdrawals to their mobile wallets, requests for mini bank statements, and airtime purchases.

After the successful implementation of the OISL USSD application, I was moved to replicate a similar project for Opportunity Bank of Uganda Limited (OBUL) in Uganda.

A financial institution had a hard time reconciling transactions across its branches at the end of the month. I solved this with a simple bank reconciliation software that imports account statements from two branches. These statements have no common unique identifier. The software matches customer names, account numbers, reference transaction IDS, and transaction dates to make the best guess for the correct match.

A financial institution was paying more or fewer taxes as they could not accurately calculate depreciation over all their assets. The company had 12 branches with different buildings, rented offices, lands, vehicles, electrical gadgets, furniture, and many other assets.

I developed a fixed asset register that automatically depreciates client assets and allows for asset readjustment, cost additions such as maintenance and repair costs, scrap value input, and many other functionalities.

The software provided real-time data on the company's asset value at any point in time, past dates, and present. The software generated monthly and annual depreciation report that was inserted into other company reports.