Calen Legaspi
Chief Scientist, Founder, and Board Chairman
Calen Legaspi is the esteemed Founder and Chief Scientist of O&B, a company renowned for its emphasis on software engineering excellence. He holds a pivotal role as the Board Member and Capability Director of the Philippine Software Industry Association (PSIA), shaping the future of the nation’s software development landscape.
His expertise is also recognized in academia, where he serves on the Technical Committee for Computer Science of the Commission on Higher Education (CHED) in the Philippines. As a passionate advocate for the Java community, he co-founded PinoyJUG, an association dedicated to Filipino Java Developers.
Additionally, Calen’s dedication to education and technology is exemplified through his position as a Senior Lecturer of Computer Science at De La Salle University and his co-founding role at Edusuite, a start-up innovating educational solutions.
Published Work
Article
Alternative to Fixed-Price Contracts in Software Development
Overwhelming evidence shows that fixed-price, fixed-scope contracts fail in software development. I won’t rehash the...
February 11, 2026
Article
Incentivizing Testers to Find Bugs is Counterproductive
Devs & testers will always debate about whether a bug is really a bug, and...
February 11, 2026
Article
“Sprint Zero” Activities Can’t Fit in One Sprint!
Extreme Programming (XP), Scrum and Kanban emerged from the rescue of so called “Death March...
February 11, 2026