Peter Farejowicz
Software Engineering Manager at Instagram
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolPeter Farejowicz is a software engineering manager with 11 years of experience building consumer-facing products across Meta/Instagram and Pinterest, combining a Stanford background in HCI and economics with strong front-end craftsmanship. He has shipped end-to-end features for creators, shopping, and video—taking concepts from ideation through A/B experimentation and multi-platform execution while influencing product vision and team practices. A frequent code reviewer and contributor to UI libraries (notably improving Pinterest’s Gestalt React components), he blends design sensitivity with pragmatic engineering to create polished creation experiences. Based in San Francisco, he focuses on helping small business owners grow on Instagram and is known for translating complex product goals into measurable gains in content scale and quality.
11 years of coding experience
8 years of employment as a software developer
Bachelor's Degree Computer Science, Bachelor's Degree Computer Science at Stanford University
English, Polish, Spanish
Github Skills (9)
css10
javascript10
react10
control-flow9
carbon-design-system9
system-design9
flow-control9
flowtype9
work-flow9
Programming languages (3)
Github contributions (5)
pinterest/gestalt
Feb 2018 - Apr 2019
A set of React UI components that supports Pinterest’s design language
Role in this project:
Front-end Developer
Front-end DeveloperContributions:19 releases, 109 commits, 253 PRs in 1 year 2 months
Contributions summary:Peter contributed to the implementation of React UI components, specifically enhancing the `Touchable` component by adding support for a `fullHeight` prop and associated CSS. The user also fixed the Flow typing and updated documentation across multiple React components. Additionally, the user added new PDS icons and expanded the functionality of the `Video` component by incorporating aspect ratio controls, as well as the capability to handle loading information.
reactlanguage-designjavascriptreact-ui-componentspinterest
pfarejowicz/gestalt
Feb 2018 - Jul 2019
Gestalt is a set of React UI that enforces Pinterest’s design language.
Contributions:281 pushes, 227 branches in 1 year 5 months
reactgestaltlanguage-designpinterestdesign-system
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