Sarah Fazio

Profile

About Me

I'm a software engineer passionate about novel applications of machine learning, data science, and AI.

Currently at Capital One working on ML infrastructure services.

In my free time, I'm a big Bay Area and Northwestern sports fan and enjoy applying data analytics to sports.

Resume

Experience

Capital One

Multiple Internships & Full-Time

Associate Software Engineer

February 2025 - Present

  • • Engineered ML infrastructure services enabling resiliency, reliability, and high performance of a platform that handles hundreds of millions of transactions per day.
  • • Maintained backend APIs written in Golang and contributed to early-stage Java SDK development for client integration.
  • • Supported release engineering and operational reliability by monitoring production health and enforcing strict SLAs.
Software Engineering Intern, Card Tech

June 2024 - August 2024

  • • Created feedback loop API in Python for correcting credit card transaction misclassifications.
  • • Engineered DynamoDB solution for storing misclassified transactions through AWS Lambda.
  • • Led implementation of event-driven Lambda functions with 90% code coverage.
Software Engineering Intern, Enterprise Data ML

June 2023 - August 2023

  • • Spearheaded backend development of chat discussion thread feature for 15,000+ monthly users.
  • • Utilized GraphQL and DynamoDB for optimal performance, data management, and scalability.
Machine Learning Research Assistant

Kellogg School of Management | October 2022 - June 2023

Utilized text mining and natural language processing techniques in R for finance research project under faculty supervision.

Data Science Research Intern

NYU Center for Data Science | June 2022 - August 2022

Analyzed Chicago Police Department ticket data using R, identifying over 3% error rate and $1 million+ in revenue impact. Cleaned and processed 30 million+ rows of data.

Software Engineering Intern

CDK Global | June 2022 - August 2022

Led development of Spring Boot API for GitHub repository automation. Integrated GitHub Actions workflow to run Terraform scripts and create AWS components.

Skills

Python
Java
Go
SQL
AWS
Git
GraphQL
DynamoDB

Education

Northwestern University
Master of Science in Computer Science

2024

  • • Machine learning, artificial intelligence, data science, scalable software architecture
Bachelor of Science in Industrial Engineering

2024 | Concentration in Data Science & Engineering

  • • Statistics, optimization, analytics, stochastic processes
President, Northwestern Sports Analytics Club

Certifications

AWS Certified Solutions Architect - Associate

Amazon Web Services