Ryan DeWitt
@ryandewitt
I build distributed data, safety, and financial systems at massive scale.
United StatesWhat I'm looking for
At Roblox, I owned Text Safety’s petabyte-scale data lake and Airflow/PySpark pipelines for an 80K+ QPS text-filter service. I cut query costs by over 95% and built datasets for creator-facing LLM training and evaluation.
Previously at Brex, I built Mastercard clearing and settlement infrastructure processing billions of dollars. I’ve also built high-throughput AdTech systems, including a 40,000 QPS bidder and Go analytics platform.
Experience
Work history, roles, and key accomplishments
Owned Text Safety's petabyte-scale data lake and Airflow/PySpark pipelines, capturing all requests from Roblox's platform-wide 80K+ QPS text filter. Migrated legacy Athena workflows to Spark on Hive, reducing query costs over 95%.
Education
Degrees, certifications, and relevant coursework
University of Florida
Bachelor of Arts, Anthropology
Bachelor of Arts in Anthropology from the University of Florida.
Tech stack
Software and tools used professionally
Availability
Location
United StatesAuthorized to work in
Salary expectations
Job categories
Skills
Interested in hiring Ryan?
You can contact Ryan and 90k+ other talented remote workers on Himalayas.
Message RyanGet matched with your dream remote job
Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!
