# Marcellino Ornelas

> Staff Software Engineer at Slack

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

Hey there, I'm Marcellino Ornelas , a software engineer with 7+ of experience creating dynamic and responsive websites. I specialize in full stack web development with some experience in DevOps, and am always exploring new technologies and techniques to improve my craft. My passion for web development stems from my love for solving complex problems and creating user-friendly interfaces. In my free time, you'll find me staying abreast of the latest web technologies, tinkering with cars, or contributing to my open source projects, such as templates. Lets connect! Let's create something amazing together!

## Work Experience
### Staff Software Engineer @ Slack
Jan 2026 – Present | San Francisco Bay Area

### Senior Software Engineer @ Slack
Jan 2021 – Jan 2026 | San Francisco Bay Area

### Software Engineer @ Slack
Jan 2020 – Jan 2021 | San Francisco, California, United States

### Associate Software Engineer @ Slack
Jan 2019 – Jan 2020

### Engineering Apprentice @ Slack
Jan 2018 – Jan 2019 | San Francisco Bay Area

### Tutor and Teacher Assistant @ Trilogy Education
Jan 2018 – Jan 2020 | Berkeley, California
Teacher Assistant at UC Berkeley extensions in SF.
Online Tutor

### Frontend Web Developer @ Handshake
Jan 2018 – Jan 2018 | San Francisco, California
- Worked closely with designers to build visually appealing and user-friendly website interfaces, effectively translating design concepts into functional and captivating user experiences.
- Utilized Sass (Syntactically Awesome Style Sheets) instead of traditional CSS to write cleaner and more organized code, leveraging advanced features like variables, mixins, and nesting for improved styling efficiency and scalability of web projects.

### Wordpress Developer @ The Last Mile
Jan 2017 – Jan 2017


## Education
### Advanced Software Engineering Immersive in Computer Software Engineering
Hack Reactor
Jan 2018 – Jan 2018

### Computer Software Engineering
General Assembly
Jan 2018 – Jan 2018

### Data Science
General Assembly
Jan 2019 – Jan 2020


## Contact & Social
- LinkedIn: https://linkedin.com/in/marcellino-ornelas
- Website: https://marcellino-ornelas.herokuapp.com/home

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