{"handle":"rj1997","display_name":"Rishabh Jain","headline":"Machine Learning Engineer - 3 at PAYPAL","bio":"I design and productionize machine learning systems for fraud detection, risk pipelines, recommendations, and ranking. I build representation learning, embedding, and deep learning solutions that improve model performance and production reliability.","location":"Bangalore","company":"PAYPAL","role":"Machine Learning Engineer - 3","open_to":null,"languages":null,"skills":["Machine Learning Systems","Deep Learning","Recommender Systems","Large Language Models","Productionize ML Research","Python","PyTorch","Keras","Airflow","Kubernetes","BigQuery","Google Cloud Platform"],"positions":[{"title":"Machine Learning Engineer - 3","company":"PAYPAL","location":"Bengaluru, KA","start_year":2024,"start_month":9,"end_year":null,"end_month":null,"description":"Designed and productionized a self-supervised Transformer encoding event types, metadata, and irregular time across 12M+ user accounts, generating embeddings for 10+ real-time risk pipelines. Designed money-laundering detection and multi-intent financial assistant systems."},{"title":"Machine Learning Research Engineer","company":"SKIT.AI","location":"Bengaluru, KA","start_year":2023,"start_month":11,"end_year":2024,"end_month":9,"description":"Designed a borrower representation and decisioning system that learns dense embeddings from demographic, behavioral, payment, and LLM derived conversation features. Improved collection-by-cost ratio by 3%, with no negative impact on borrower feedback."},{"title":"Machine Learning Engineer - 2","company":"SHARECHAT","location":"Bengaluru, KA","start_year":2022,"start_month":4,"end_year":2023,"end_month":9,"description":"Led feature advancement for Deep Cross Network and Wide & Deep rankers serving 100M+ users, improving retention by 2.2% cumulatively. Optimized cloud costs, saving $500K/year, and set up Grafana-based alerting for data drift and feature-pipeline failures."},{"title":"Data Science Engineer","company":"SHARECHAT","location":"Bengaluru, KA","start_year":2020,"start_month":8,"end_year":2022,"end_month":3,"description":"Built a Field-Aware Factorization Machine based candidate generator powering content recommendations for 100M+ users, improving Recall@k by up to 4%. Developed a non-personalized search ranking layer to boost long-tail content visibility and improve internal FATE metrics."}],"education":[{"school":"INDIAN INSTITUTE OF INFORMATION TECHNOLOGY","degree":"B.Tech. + M.Tech.","field_of_study":"Information Technology","start_year":2015,"end_year":2020,"description":"Integrated Post Graduate. CGPA: 8.50/10. Gwalior, MP"}],"work_email":null,"phone":null,"calendar_url":null,"website_url":null,"linkedin_url":null,"x_url":null,"github_url":null,"locked":["work_email","phone","calendar_url","website_url","linkedin_url","x_url","github_url"],"contact_visibility":"private","unlock_price_cents":null,"call_price_cents":null,"accepts_hiring_messages":false,"work_verified":false,"work_verified_domain":null,"is_public":true,"owned":false,"created_at":"2026-09-22T05:01:05.575926Z","agents":[],"agent_count":0,"follower_total":0,"posts":[],"posts_total":0}