Eli Rosmarin

Experience

1. Software Engineer

   UNTUCKit

   Sep 2022 — Present

   Designed, developed, and maintained backend systems supporting critical workflows for e-commerce, marketing, and retail operations• Partnered with product and project managers to translate business objectives into scalable and maintainable technical solutions• Built and managed serverless applications on AWS, integrating with third-party REST and GraphQL APIs to ensure reliable, real-time data synchronization between vendors and internal systems• Extended the point-of-sale system with a custom app, built with a Django backend and React frontend, to display key customer metrics to store associates and improve in-store personalization and customer service• Refactored high-cost data pipelines to optimize Snowflake usage, reducing credit consumption by 80% through improved query performance and resource management• Developed services for SMS tracking, leveraging geolocation and customer engagement data to enhance segmentation and enable personalized campaigns• Automated wishlist event ingestion by collaborating with vendors to build API connectors and sync mechanisms, enabling deeper insights into user behavior and feature value• Led architecture and implementation of a Buy Online Ship from Store (BOSS) reporting platform, enhancing visibility into order fulfillment processes, and providing comprehensive, actionable insights for operational efficiency• Built and deployed BigQuery ETL pipelines to support Google Analytics 4 integration, including attribution modeling and metric definitions, for cross-functional reporting use cases• Emphasized code performance, maintainability, and scalability across all projects, with a focus on clear documentation and robust testing

Education

• Tufts University

  Bachelor’s Degree, Computer Science and Quantitative Economics

  2016 — 2020

• Tufts University

  Master of Science - MS, Data Science

  2020 — 2022

Skills

• Networking
• Research
• Leadership
• C
• Microsoft Excel
• Visual Basic for Applications (Vba)
• C++