Played a pivotal role in the migration of Fitbit's Sync and MobileTrack microservices to Google's more robust frameworks and infrastructure. This strategic transition resulted in significant improvements in system performance, scalability, and maintainability. Key responsibilities included:• Technical Analysis: Thoroughly analyzed existing microservices to pinpoint areas for improvement and optimization. Quickly became the trusted resource for all questions and inquiries related to the legacy system and was more than happy to provide assistance.• Data Ingestion Pipeline: Developed a robust data ingestion pipeline, ensuring efficient and reliable data flow from various sources to the central timeseries database.• Cross-Functional Collaboration: Coordinated with cross-functional teams to align on testing and deployment strategies that minimized disruptions to Fitbit's services.• Production Readiness: Ensured the migrated services were fully prepared for production deployment, including rigorous testing, performance tuning, and contingency planning.• Production Support: Demonstrated strong debugging skills and technical expertise in resolving critical production issues, ensuring service uptime and customer satisfaction.• End-to-End Testing: Owned the end-to-end functional testing for critical user journeys involving dozens of microservices, guaranteeing the reliability of the migrated systems.Actively mentored team members and created a more productive work environment through:• Code Reviews: Provided constructive feedback on readability and potential improvements.• Pair Programming: Worked alongside team members to share expertise, troubleshoot technical challenges, and respond more effectively to external requests.• Solution Evaluation: Analyzed proposed solutions from both technical and business perspectives, helping team members make informed decisions and avoid potential pitfalls.

• Account IQ: Led backend development, designing and implementing Spring Boot microservices to address credential sharing on video streaming platforms.• Big Data: Developed Apache Spark jobs in PySpark and Scala for large-scale data processing, automating execution using Apache Airflow on AWS EMR.• Performance Optimization: Significantly reduced Apache Drill query times by over 60x through cluster optimization and SQL query refinement.• Infrastructure Reliability: Enhanced Ansible playbooks for increased resilience and service level indicators (SLIs) on AWS.

• Event-Driven Architecture: Reengineered the product update flow, implementing an event-driven architecture and domain-driven design. This resulted in a 10x increase in QPS and a 200x reduction in space usage.• Image Similarity Tool: Developed a Python-based proof-of-concept tool to identify similarities between photo galleries. Successfully integrated this feature, reducing operator workload by 20%.

• Reports Calendar: Developed a web application using Laravel Framework and Vue.js for managing and accessing development milestone reports.• BDD Testing: Expanded the Behave BDD framework and integrated it with GitLab's CI/CD pipeline, enabling non-technical stakeholders to write acceptance tests. This led to a 50% reduction in uncaught bugs.

• Contributed to the success of over 10 web-based projects.