Melissa Belfer
Senior Software Engineer I at American Express
Denver, Colorado, United States
Summary
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Senior🎓
Top SchoolMelissa Belfer is a Senior Software Engineer with nine years of experience specializing in Big Data, ETL, and cloud-native orchestration at American Express, where she builds scalable pipelines using Cloud Composer, BigQuery, Spark, and Pub/Sub. She has repeatedly reduced processing time by redesigning ETL workloads (Hive→Spark) and creating automated synthetic data and PCI/PII scrubbing systems that enable secure, production-like test environments. Comfortable leading small teams, mentoring new hires, and collaborating across functions, she balances hands-on engineering with privacy and reliability initiatives. Based in Denver, she brings a practical mix of computer science rigor and field-tested problem solving—she’s also a wilderness first responder and avid rock climber, reflecting a methodical, safety-minded approach to high-stakes systems.
9 years of coding experience
6 years of employment as a software developer
Wilderness First Responder, Wilderness First Responder at NOLSBachelor’s Degree Computer Science, Bachelor’s Degree Computer Science at University of Florida
English, SpanishProgramming languages (1)
Github contributions (5)
tamargoadam/food-baby-web-app
Oct 2018 - Nov 2018
Contributions:11 commits, 37 pushes, 2 branches in 28 days
belfmel/CashDrop
Jul 2019 - Dec 2021
Contributions:2 pushes, 1 branch in 2 years 5 months
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