# Mary Keenan

> Software Engineer at Afresh

Location: San Francisco, California, United States
Profile: https://flows.cv/marykeenan

Backend software engineer with expertise in Python / PySpark and SQL. Interested in data analytics, performance optimization, and anything related to the environment.

## Work Experience
### Software Engineer @ Afresh
Jan 2021 – Present | San Francisco, California, United States

### Software Engineer @ Mastercard Data & Services
Jan 2019 – Jan 2021 | Washington DC-Baltimore Area

### Software Engineering Intern @ Applied Predictive Technologies
Jan 2018 – Jan 2018 | Washington D.C. Metro Area

### 3D Printer NINJA (Need Information Now Just Ask) @ Olin College of Engineering
Jan 2016 – Jan 2017 | Needham, MA
Trained new users on the printers, repaired the printers, and improved the 3D printer space.

I also worked mostly on creating a wiki page for our printers that includes guides for different aspects of printer care, FAQs, common problems and solutions, the printer reservation calendars, and additional 3D printing resources (blogs and interesting things on Thingiverse that people might want to check out).

### ModSim NINJA @ Olin College of Engineering
Jan 2016 – Jan 2016 | Needham, MA
Helped students with classwork in Modeling and Simulation of the Physical World (ModSim), which covers math, physics, and programming (MATLAB).

### Researcher @ Olin College of Engineering
Jan 2016 – Jan 2016 | Needham, MA
Worked on the Olin Adaptive Sailing Team to create a system that enables blind sailors to compete in match races autonomously.

### Software Engineering Intern @ Humanyze
Jan 2017 – Jan 2017 | Greater Boston Area
Extended key functionality of existing data extraction tool to leverage Google email and calendar APIs in C#; optimized using multithreading, and worked on scrum team following Agile methodologies


## Education
### Bachelor of Science (B.S.) in Computing
Franklin W. Olin College of Engineering

### International Baccalaureate and Advanced Diplomas
George Mason High School


## Contact & Social
- LinkedIn: https://linkedin.com/in/mary-keenan
- Portfolio: https://mary-keenan.github.io/

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Source: https://flows.cv/marykeenan
JSON Resume: https://flows.cv/marykeenan/resume.json
Last updated: 2026-03-29