Work Experience

Senior Data Scientist at CB4, A Gap Company

Herzliya, October 2021 - Present

-Led design and development of semantic eCommerce search engine using vector DB backend, finetuned product embedding models, and second-stage retrieval reranking model eCommerce recommendation system utilizing customer embeddings, enriched with product review aspect-based sentiment analysis and NER models

  • Built internal data enrichment pipeline for LLM-based generation of product descriptions from images
  • Led development of customer chat agent for eCommerce site using knowledge graph embeddings and RAG-based LLM text generation
  • Model pipelines built and deployed at scale in a Kafka event-driven microservice architecture running on K8s and Terraform-managed infrastructure, and asynchronous FastAPI gateway

Data Scientist at Sparks AB

Hod Hasharon, October 2018 – October 2021
  • Built and deployed a Hamilton (Markovian) regime-switching model as a market sentiment index, based on NLP features from sentiment analysis and text classification of unstructured financial data
  • Built and deployed financial forecasting models using temporal CNNs and LSTMs that leveraged GloVe embeddings for features
  • Implemented a macroeconomic event extraction service using transformer-based topic modeling
  • ML Ops using AWS S3/Lambda/SageMaker, Jenkins, custom API to automate training and deployment

Junior Data Scientist at EY (Ernst & Young)

Tel Aviv, November 2016 – December 2018
  • Part of the digital innovation team developing machine learning products internally to automate tax & audit processes
  • Supervised classification model for detecting fraud/irregularity in transnational regularity filings
  • Autoregressive forecasting model for regulatory penalty scheduling

Quantitative Analyst at McKinsey & Co.

Washington D.C., January 2013-October 2015
  • Data analytics and predictive modeling for defense acquisition processes between US Department of Defense and defense manufactures
  • Development of unsupervised clustering models for network analysis and defense platform optimization

Education

University of Pennsylvania, BA Statistics | 2010-2014

  • Thesis: Spatial Clustering of Innovations in Military Theaters
  • GPA: 3.9/4.0 Magna Cum Laude

Georgia Tech, Msc Computer Science | 2015-2019

  • Computational Perception and Robotics
  • GPA: 3.8/4.0