• Owned monetization and pricing platform across mobile and web, driving 70%+ gains in D0 RPI, ROAS, and LTV through 50+ experiments and durable infrastructure.

• Designed and shipped a behavior-aware pricing & paywall framework with cohort-stable rollouts, increasing renewals by 30% without sacrificing long-term LTV.

• Architected the company's new landing-page experimentation platform, enabling rapid iteration while improving net ROAS/RPI by 10-20% and reducing CPI/CPM by 5-10%.

• Built and maintained core subscription, pricing, and entitlement infrastructure, ensuring correctness across upgrades, renewals, restorations, and cross-platform edge cases.

• Replaced vendor-dependent video production workflows with automated processing pipelines, eliminating contract labor costs and accelerating creative iteration.

• Set architectural direction across multiple applications and backend services, resolving cross-team dependencies and enabling rapid experimentation across the entire platform.

• Partnered directly with C-suite leadership on time-sensitive, revenue-critical initiatives, translating business strategy into production systems.

• Led architecture for a cross-platform health application, spanning React Native, native iOS/Android, OpenGL ES (GLSL), and C.

• Designed a camera-based PPG recording pipeline achieving medical-grade signal quality on commodity smartphones.

• Optimized real-time image processing to sustain 180 hz (5.6 ms/frame) on mobile devices.

• Built reusable signal-processing libraries and high-precision peak-detection algorithm underpinning biomarker extraction.

• Collaborated with medical doctors to translate clinical requirements into robust, production-ready algorithms.

• Designed a low-cost serverless backend using Firebase and AWS (Lambda, S3, RDS, DynamoDB, API Gateway).