Rionel Dmello
Senior Machine Learning Engineer at Meta | Ex-Amazon
- Role
- Senior Software Engineer, Machine Learning at Meta
- Location
- New York, NY, US
- LinkedIn followers
- 500 followers
About Rionel Dmello
ML engineer at Instagram with a focus on search, ranking, and recommendation systems. Previously at AWS building large-scale ML infrastructure. I work across the stack — fine-tuning LLMs, designing retrieval and ranking pipelines, building MLOps systems, and leading engineering teams to ship products that move business metrics. Most at home at the intersection of applied ML and backend systems. Python, Java, Go, PyTorch, Spark, LangChain, and deep experience with AWS infrastructure.
Experience
Senior Software Engineer, Machine Learning
Feb 2026 — Present · NY, US
Education
St. Xavier's College
High School Diploma, HSC Science
Don Bosco High School (Borivli)
SSC
UC Irvine
Bachelor of Science, Computer Science
2017 — 2021
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