# Marcus Jefferson

> Senior Software Engineer

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

From small hobbyist fullstack JavaScript apps, to distributed systems serving millions of customers, I’ve built my career around fine tuning software and developing backend systems for a variety of applications.

## Work Experience
### Senior Software Engineer @ Porsche Digital US
Jan 2023 – Present | Palo Alto, California, United States

### Software Engineer II @ Twitter
Jan 2020 – Jan 2022 | San Francisco, California, United States
Rebuilt Twitters mobile address book storage service in addition to features for Twitters custom advertisement platform.

### Software Engineer I @ Twitter
Jan 2018 – Jan 2020 | San Francisco, California
Practiced cutting edge distributed systems application development by building many features in Twitters user onboarding backend services, including user recommendation pipelines and experimental application features for tens of millions of customers.

### Software Engineering Intern @ Twitter
Jan 2017 – Jan 2017 | San Francisco, California
Worked with an Advertisement team to build a web application which allowed for easier communication between advertisers and account stakeholders.

### Software Engineering Intern @ AT&T
Jan 2016 – Jan 2016 | Chicago, Illinois, United States
Created a Visual Basic windows application to assist a team of Virtual Desktop technicians debugging common pc issues.
Created a MEAN stack based website for a volunteer organization.

### Software Engineering Intern @ AT&T
Jan 2015 – Jan 2015 | Hoffman Estates, Illinois, United States
Assisted Senior Developer with creating a Java application to push emails containing account data to stakeholders. Learned how to use eclipse and sdk's within Java applications.


## Education
### Bachelor of Science (BS) in Computer Engineering
University of Illinois Urbana-Champaign


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

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Source: https://flows.cv/marcusjefferson
JSON Resume: https://flows.cv/marcusjefferson/resume.json
Last updated: 2026-04-01