Scaled and optimized Grammarly's petabyte-scale data platform, supporting 30+ million daily active users.
Key achievements:
• Led two-year migration to Databricks, addressing critical scaling bottlenecks and improving data infrastructure.
• Developed self-service developer toolkit, enabling partner teams to onboard and deploy within a day.
• Reduced query costs by up to 300% and halved average query execution time.
• Built structured-streaming suite processing 1+ billion daily events for data normalization and merging.
• Saved $700,000+ annually through strategic query optimizations.
• Decreased on-call alerts by 4x through multithreading and load balancing improvements.
• Collaborated with hundreds of stakeholders on high-touch migrations.
• Mentored team members and contributed to senior-level hiring decisions.
