Context
A national consumer brand running a high-volume promotional campaign across mobile and web channels.
Problem
Manual contest entry and winner selection processes could not scale reliably or fairly.
Constraints
Participants primarily interacted via SMS and campaigns needed to comply with promotional rules.
Scope
Technical lead responsible for end-to-end contest platform design and delivery.
Strategy
Automate entry ingestion, validation, and winner selection while providing administrative transparency.
Architecture
Built a serverless backend integrated with SMS ingestion, a web-based admin dashboard, and random selection logic.
Impact
Enabled reliable national-scale participation with transparent and auditable winner selection.
Effects
Reduced operational overhead and increased confidence in campaign integrity.
Artifacts
Key Insights
Automation is essential when fairness and scale intersect.