Certificate of completion
Presented to
Justin Yeo
For successfully completing and defending Mission 11, Build Your Capstone.
Skills mastered
Verified by Sigmaschool on 30 October 2026
https://sigmo.dev/yeo-jiaxing-68fa4e/certificates/m11
This certificate was awarded to Justin Yeo on 30 October 2026 for completing Mission 11, Build Your Capstone, at Sigmaschool.
What that means: “I can plan, build, and deploy a complete full-stack product, a CRUD API with authentication, a database, a third-party integration, and a polished frontend, and explain my stack and how every part works end to end.”
Sigmaschool is a mastery-based programme where students build real, working software instead of watching lectures. Every mission is shipped to a live URL, walked through on video, and marked by a human instructor before it counts, so a certificate here means the work was seen and defended, not just finished.
