
Coupon Swap Scheduler
Empowered the marketing team with self-service scheduling, reduced engineering intervention, and improved campaign flexibility.
The Challenge
Every week, marketing campaigns were stalled at the starting line: unable to kick off until a developer manually updated the coupon configurations.
Developer Bottleneck
Marketing teams waited for engineering to manually update coupon configurations
Time-Sensitive Process
2 hours/week of manual work and testing with zero room for error
Campaign Delays
Ad-hoc requests and urgent swaps disrupted development cycles
The Solution
I built an event-driven system that gave marketing teams full control while eliminating developer bottlenecks.
Self-Service Scheduling
Marketing teams can schedule coupon swaps independently
Event-Driven Architecture
AWS EventBridge and Lambda functions handle everything automatically
Zero Developer Intervention
Completely eliminates manual developer work and reduces errors
My Role
I led both frontend and backend development, collaborating closely with our DevOps team to bring this automation vision to life.
Technical Leadership
- Co-architected event-driven system with AWS EventBridge & Lambda
- Built React UI optimized for internal team workflows
- Implemented robust scheduling logic and error handling
Cross-Team Collaboration
- Coordinated IAM policies & deployment pipeline with DevOps
- Optimized multi-repo coordination and Lambda packaging
- Gathered requirements from marketing teams for UX design
The Architecture
A serverless architecture that orchestrates coupon swaps with precision timing and zero manual intervention.
Tech Stack
- AWS EventBridge – rule-based and time-based triggers
- AWS Lambda – serverless execution for coupon logic
- Node.js Backend – API integration layer
- React Frontend – minimal scheduling interface
- Statsig – dynamic banner text updates
Strategic Decisions
- Minimal UI investment focused on backend automation for MVP speed
- Shared Yarn cache to optimize Lambda deployment times
- Careful IAM scoping to avoid permission bloat across functions
The Impact
From manual bottlenecks to seamless automation.
"This saves us from bugging devs every week. Total game-changer!"
Looking Back
Every project teaches valuable lessons. Here's what I'd prioritize in a v2.
Enhanced UI Experience
Add real-time feedback, execution logs, and status indicators to build confidence for non-technical users and reduce support overhead.
Streamlined Setup
Simplify IAM configurations and deployment processes earlier to enable easier handoffs and maintainability for future team members.
Scalable Architecture
Consider AWS Step Functions for complex workflows to handle growing business logic without overcomplicating the core system.
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