• Designed and directed the Marketing Campaigns Platform using Elixir (Phoenix), RabbitMQ, and Oban for distributed job processing. Automated campaign delivery and analytics, saving $12K+ annually and driving a 10% lift in restaurant revenue.
• Architected and launched Zuppler Loyalty 2.0, a full-stack platform powered by Elixir, Phoenix, ReactJS, TypeScript, and PostgreSQL. Achieved 5× growth in loyalty transactions and cut maintenance overhead by 75% through modular architecture and background job orchestration with Oban.
• Revamped the company’s discount infrastructure by delivering Discounts 2.0, a rules driven promotions engine built with Elixir contexts, Ecto transactions, and GraphQL APIs. Adopted by 90% of restaurant partners, supporting thousands of daily transactions.
• Implemented passwordless login using Elixir (Phoenix) and WebAuthn, enabling 10K+ users to authenticate via phone number or Touch ID. Reduced login friction, improved security, and increased daily active usage.
• Engineered and optimized advanced retention and analytics pipelines with PostgreSQL, complex Ecto queries, and React-based dashboards, providing insights beyond existing reporting capabilities.
• Partnered cross-functionally with product, QA, and DevOps teams to plan, review, and deploy features through Agile sprints, CI/CD pipelines (CircleCI, Docker, AWS), and performance benchmarking.