Ilo Calistus
Founder & CEO at Grandilo
Lagos, Lagos State, Nigeria
Summary
👤
Senior🎓
Top SchoolIlo Calistus is a founder and seasoned software engineer with 11 years of experience building and shipping web and mobile products across Africa and Europe. He started at Google via Google Summer of Code and went on to consult for 35+ companies, delivering over 40 production apps and scaling products like Cleva’s mobile app to 600,000 users. As founder of ParishBulletin and Posa and CEO of Grandilo, he combines product vision with hands-on development—ParishBulletin now serves hundreds of parishes across 15 countries. His hands-on wins include building Sunvigo’s iOS/Android app in six weeks to support thousands of German households and growing Tunga’s Nigerian developer community from 120 to 300+. Known for speed and practical architecture, he frequently moves startups from idea to market-ready products while mentoring teams and defining CI/CD and cloud best practices. Based in Lagos, he pairs deep mobile expertise with a track record of rapidly converting complex requirements into reliable, user-focused systems.
11 years of coding experience
6 years of employment as a software developer
Android Developer Android Development, Android Developer Android Development at UdacityBachelor's degree Computer Science, Bachelor's degree Computer Science at University of Nigeria, NsukkaBachelor's degree Computer Science, Bachelor's degree Computer Science at Lycee Bilingue de Maroua, Cameroun. Federal Government college Maiduguri, Nigeria
English, French, Hausa, Igbo, fulfulde
Stackoverflow
2,105reputation
421kreached
11answers
15questions
dart
top-5%
android
top-5%
flutter
top-5%
debugging
top-5%
Github Skills (53)
ios10
windows10
cross-platform10
java10
material-design10
android10
mobile10
macos10
dart10
flutter10
web-framework9
mobile-development9
debugging9
app-framework9
skia9
Programming languages (5)
Github contributions (5)
Grandilo/grandilo_website
Sep 2015 - Nov 2017
Contributions:4 PRs, 3 pushes, 2 branches in 2 years 2 months
src
calistus/StAnthony
Nov 2015 - Jan 2019
Contributions:10 pushes, 1 branch, 3 issues in 3 years 2 months
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