Certificate of completion
Presented to
Justin Yeo
For successfully completing and defending Mission 4, Build an Activity Discovery Dashboard.
Skills mastered
Verified by Sigmaschool on 1 September 2026
https://sigmo.dev/yeo-jiaxing-68fa4e/certificates/m4
This certificate was awarded to Justin Yeo on 1 September 2026 for completing Mission 4, Build an Activity Discovery Dashboard, at Sigmaschool.
What that means: “I can build a login flow, fetch data from a real API, and turn JSON responses into a live, interactive page.”
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.
