Kritika Rai

Experience

• 

  Reddit, Inc.

  Engineering Manager, Search Platform

  Oct 2024 - Present

  Reddit is a platform that fosters community and connection through discussions on countless topics.

• 

  Reddit, Inc.

  Engineering Manager, Search Infrastructure

  Oct 2024 - Present
• 

  Reddit, Inc.

  Engineering Manager, Ads Machine Learning

  Nov 2023 - Oct 2024
• 

  Reddit, Inc.

  Staff Machine Learning Engineer/Tech Lead

  Jul 2022 - Nov 2023
• 

  Reddit, Inc.

  Senior Machine Learning Engineer

  Jul 2019 - Jul 2022

  • I've worked on several teams at Reddit and shipped many impactful ML models & data products to production.
  • Ads Targeting ML
  • Working on several ML based targeting models and products to improve how users are matched with advertisers at Reddit.
  • We do full stack ML development and employ techniques from many different ML domains ranging from recommender systems, NLP and clustering / unsupervised learning / Nearest Neighbor search etc. to build and deploy impactful products.
  • Ad Serving / Budget Pacing
  • Implemented probabilistic pacing delivering X% in incremental ad revenue.
  • Designed and built the budget split experiment framework to improve budget pacing algorithms.
  • Worked on large scale real time streaming and batch processing pipelines to power Ad products in production.
  • Ad Ranking
  • Designed and implemented the first generation of machine learning models and model training pipelines for predicting CTR and ranking ads, which led to a ~X% increase in Ad CTR.
  • Tech stack : Python, BigQuery, Jupyter, Scala, Spark, Spark Streaming, Go.
• 

  Reddit, Inc.

  Senior Data Scientist

  May 2017 - Jun 2019

  • Designed and added user features to unified machine learning feature store for use in ranking and recommendation algorithms.
  • Part of a small squad that built Reddit's experimentation platform. My focus was on helping several product teams design experiments and managing the effort to provide an automated pipeline and user interface to evaluate experiments.
  • Worked on many other projects involving user intent modeling and causal inference through supervised and unsupervised learning on large scale user data.
• 

  Hipmunk

  Data Scientist

  Jun 2015 - May 2017

  Hipmunk was an online travel website offering ease of booking flights and hotels.

• 

  KPMG

  Research Analyst

  Jan 2013 - Jul 2013

  KPMG is a global network providing audit, tax, and advisory services.