Steven Grosmark
Staff IOS Engineer, UI Systems at Square
New York City Metropolitan Area United States
Summary
👤
Senior🎓
Top SchoolSteven Grosmark is a hands-on Staff iOS engineer and architect with nine years of modern mobile experience and a long track record building consumer and educational apps dating back to leading engineering roles. Currently shaping UI systems at Square, he previously architected company-wide services and cross-platform data-driven UI (SDUI) for WW/WeightWatchers while open-sourcing production frameworks like Lasso and WWLayout. He blends deep Swift and Kotlin expertise with legacy fluency in Objective‑C/C++ and a knack for API design, theming, analytics, and secure key management. Equally comfortable in detailed code reviews and high-level RFCs, he’s a practiced mentor and teacher who founded a CS enrichment program for students and runs pragmatic, design-collaborative engineering efforts. Notably, he pairs product-minded system design with hands-on implementation—often turning research and specs into reusable frameworks that accelerate teams.
9 years of coding experience
24 years of employment as a software developer
Bachelor of Science (BS) Music Business & Technology, Bachelor of Science (BS) Music Business & Technology at New York UniversityMaster of Science (MS) Computer Science, Master of Science (MS) Computer Science at Pace University
Stackoverflow
1,364reputation
72kreached
17answers
4questions
json
top-5%
Github Skills (101)
particle-system10
ioc-container10
inversion-of-control10
di-container10
unidirectional-data-flow10
state-machine10
architecture10
jsonpath10
autolayout10
pattern10
carthage10
swift10
json10
layout10
xcode10
Programming languages (6)
Github contributions (5)
ww-tech/lasso
Feb 2020 - Oct 2022
iOS architectural pattern and framework
Contributions:6 releases, 26 reviews, 145 commits in 2 years 8 months
unidirectional-data-flowswiftiosarchitecturalpattern
g-mark/SwiftPath
Aug 2017 - Jan 2022
JSONPath for Swift
Contributions:2 releases, 2 reviews, 92 commits in 4 years 6 months
jsonpathjsonswift
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