Nov 2019 – Jun 2021 · 1 yr 7 mos · Nairobi

Mar 2017 – Nov 2019 · 2 yrs 8 mos · Nairobi

• Migration of the JUMO disbursements and collections environment from traditional ec2 instances fronted by an haproxy load balancer to an autoscaling AWS eb docker environment powered by ecs setting up the business for 10x growth
• Migration of configuration variables from code in two of our Django codebases into environment improving developer experience by a bigger magnitude and providing a platform for building tools to spin up environments dynamically
• Migration of our front end facing USSD application session management from a traditional RDBMS(Postgres) to Redis improving performance by over 70% and reducing outages due to Postgres rds instances failing by up to 99%
• Building an open public facing API to expose the Jumo payment APIs to the outside world improving the possibilities for how the Jumo loan platform can be accessed from the outside world
• Building a microservice to dynamically schedule transactions (collections) increasing infinitely the number of collection strategies we could implement and improving how fine-grained we want to collect payments from customers customized up to an individual customer level
• Work on the microservice led to the development of an opensource distributed time-based queue code-named Milau (https://github.com/kigsmtua/milau)

Sep 2015 – Feb 2017 · 1 yr 5 mos · Nairobi

• Introduced a debugging toolbar to profile web applications improving performance by up to 70%
• Building the transaction summary and profiling backend for the mula payment app the current number one bill payment platform in the Kenyan market
• Led query optimization efforts for the backend API powered by MySQL improving performance by up to 30%
• Set up Jenkins for use as a continuous integration tool for shipping work to the local testing environment
• Led the integration of the bulk SMS system with the Cellulant payment enabling the two to work seamlessly with each other for our banking clients improving the efficiency and usability of both platforms