Mark Castle
Software Engineer at PayIt
Kansas City, Missouri, United States
Summary
👤
Senior🎓
Top SchoolMark Castle is a versatile software engineer with 11 years of experience building firmware, mobile, and full-stack applications, currently contributing to PayIt in Kansas City. He has led development at product-focused startups such as PiEARcings—where he drove software and human-interface work for ultra-small computing form factors—and shipped iOS and web systems across multiple teams. Known for rapid learning and an insatiable curiosity, he combines embedded firmware insight with modern app engineering to bridge hardware constraints and polished user experiences. His background spans end-to-end delivery from low-level device integration to customer-facing applications, making him particularly effective on cross-disciplinary engineering efforts.
11 years of coding experience
5 years of employment as a software developer
MakerSquare
Stackoverflow
13reputation
519reached
0answers
2questions
Github Skills (99)
linting10
command-line-tool10
react-component10
cli10
macos10
binaries10
homebrew10
administration10
static-analysis9
swift-package-manager9
obd-ii9
dates9
swift9
datepicker9
json-data9
Programming languages (10)
Github contributions (5)
MKS-Elixr/forcefield
Apr 2016 - Jun 2016
Contributions:49 PRs, 153 pushes, 66 branches in 1 month
merktassel/tantara-officer-assistant
Apr 2015 - Mar 2016
Contributions:4 releases, 25 pushes, 1 branch in 10 months
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