Experimentation Framework: Developed and optimized key components of the core A/B testing framework supporting 3B+ users across Facebook, Instagram, and Messenger. Engineered a template-based system that streamlined adoption for 178+ teams and thousands of concurrent global experiments.

Real-time Data Pipeline: Re-architected experiment dashboards by migrating data retrieval from legacy batches to real-time engines. Reduced data latency by 95% (minutes to <20s), eliminating backfill needs for 1,400+ daily queries.

Storage & Reliability: Redesigned the "HealthCheck" microservice schema for TB-scale monitoring data, achieving a 78% reduction in storage footprint and optimizing query latency by 99%.

Developer Experience (DevEx): Developed the "Experiment Debugger" and robust RESTful services to automate diagnostic flows, reducing cross-team debugging cycles from 7 days to <2 days.

ML Integration: Partnered with ML teams to operationalize "Personalized Experiments" (PEX), enabling automated, supervised learning-based treatment assignments.

Privacy Framework: Technical owner for the end-to-end integration of a global compliance framework (Policy Zone) across the experimentation ecosystem. Standardized data collection to ensure consistent GDPR/DMA enforcement.

Data Deletion: Modernized legacy codebases to automate PII removal and data deletion workflows across Hive and TAO, enforcing "Right-to-be-Forgotten" mandates.

Compliance Monitoring: Architected a high-throughput pipeline capturing 2.5M+ daily logs, establishing a scalable "Source of Truth" for legal audits and data usage transparency.

Incident Management: Managed P0/P1 production incidents for global platforms. Rapidly mitigated critical outages related to Ads revenue and cross-platform configurations for 3B+ users.

Studied the performance of the semiconductor thin film solar cell devices using atomic force microscopy (AFM) based techniques and scanning electron microscopy (SEM).