Ilo Calistus

Cleva is a YC-backed startup that helps non-US residents to open USD accounts from their countries with which they can receive payments from any country. I built the current Cleva mobile app from scratch and so far we have over 280,000 users. I currently architect, assign and oversee the daily tasks of the Mobile software engineers while ensuring all subordinates are actively working toward established milestones.

Lead a team of 4 developers working on ParishBulletin. An app that connects Catholics to the nearest Catholic church within their vicinity. The app currently has over 600 Parishes in the US, Nigeria, Kenya, India, South Africa and the Philippines) registered on it and over 27,000 users. Technologies used are NestJS, VueJS, Firebase, Java, Kotlin, NodeJS, Flutter

Releaf is a YC-backed startup, industrializing food processing in Africa using advanced Software and Hardware technologies. 4 years ago, I built the current Releaf core app(SALT); a real time supply chain technology app that enable real time purchasing intelligence to maximise value for supply chain participants in the fragmented and decetrasiled food production industry of Africa. I architect, assign and oversee the daily tasks of the software engineers.

Sunvigo is a Green energy company that provides Solar energy as an alternative form of electrical energy to households in Germany. I built Sunvigo's customer application for iOS and Android in 6 weeks. The application connects to IOT devices and helps households monitor their energy consumption, production, and battery. Technologies used are: Flutter, Firebase cloud Functions, Java for the backend, and Google Cloud Platform.

I am in charge of project planning, scoping, and execution of projects within the company in collaboration with Software Engineers across Africa

I lead the execution of over 12 technical projects for different companies in Europe and East Africa over a 1 year period with a cumulative budget of about €200,000 amidst retaining most clients and developers' happiness. In a period of 1 year, I grew Tunga’s development workforce from 120 developers to 300 senior software developers. Successfully helped the company to break even that same year.

I developed about 2 different applications from scratch for 2 different companies and participated in maintaining 3 other codebases for an ongoing project. The companies were located in the Netherlands and Uganda

I mentored University students from around the world on how to write open-source code. These students contributed to the 50 million lines of code written so far.

Represented Nigeria in Google Summer of code 2015. I contributed to 50 million lines of code written so far. Built a mobile app that helps to reduce the rate of sexual assault on Peace Corps volunteers and staff in their various countries of service

Acted as liaison between Google and my school for over 1 year. During this period, I trained over 2000 students in Google technologies and about 100 in Android development. Then I later emerged as the star Ambassador(Best) of Google in Sub-Saharan Africa