# Andrew Callahan

> Software Engineer at Facebook

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/andrewcallahan

I am a software engineer working on Facebook's events product. I previously worked at Workday building/enhancing their backend web server. Prior to that I built Workday's inventory management web application. Before Workday I was a full-stack software engineer for Zenefits in San Francisco, and before that I worked at Lockheed Martin as a software engineer supporting the British Royal Navy. I received my bachelors in Mechanical Engineering from Lehigh University with minors in Business and Aerospace Engineering. I served as president of Student Government at Lehigh University and spent my last summer as an undergrad working for Boeing.

## Work Experience
### Software Engineer @ Facebook
Jan 2021 – Present | Menlo Park, California, United States
As a fullstack software engineer I'm enhancing Facebook's Events product on mobile and web at https://www.facebook.com/events.

### Software Engineer @ Workday
Jan 2016 – Jan 2021 | Pleasanton, CA
I maintained and built enhancements to Workday's backend web server, and prior to that I built Workday's inventory management web application.

### Fullstack Software Engineer @ Zenefits
Jan 2015 – Jan 2015 | San Francisco, CA
As a full-stack software engineer I built features using Django with a MySQL database, the Tastypie API framework, and an Ember.js frontend.

### Software Engineer @ Lockheed Martin
Jan 2014 – Jan 2015 | Sunnyvale, CA
I designed and implemented front-end and back-end solutions for web applications used by our domestic and international customers.

### Intern @ Boeing
Jan 2013 – Jan 2013
I supported the Royal Netherlands Air Force's fleet of CH-47 Chinook helicopters.

### Research Assistant @ Lehigh University
Jan 2012 – Jan 2012
I researched the computational efficiency of analyzing truss structures using stochastic analysis versus Monte Carlo methods in MatLab.


## Education
### Bachelor of Science in Mechanical Engineering in Mechanical Engineering
Lehigh University


## Contact & Social
- LinkedIn: https://linkedin.com/in/aecallahan

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Source: https://flows.cv/andrewcallahan
JSON Resume: https://flows.cv/andrewcallahan/resume.json
Last updated: 2026-03-22