Joshua Marker
Engineer at Fractional AI
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolJoshua Marker is an experienced engineering leader with 11 years in software, known for scaling teams from literal startup scrappiness to mature, compliant organizations. He has driven large architectural transformations at UserTesting—partitioning monoliths into multi-tenant SOA, enabling global expansion, and implementing SOX/HIPAA/GDPR-ready processes—while now focusing on applied generative AI at Fractional AI. Joshua blends deep technical craft (mobile, backend, data engineering) with strategic product and M&A insight, having influenced acquisitions and built data platforms that unlocked ML products. He mentors climate-tech founders and contributes to climate research tools, reflecting a thread of mission-driven work alongside commercial engineering. Notably, his background in cognitive science research at UC Berkeley informs a rare perspective on language, modeling, and human-centered systems design. Based in San Francisco, he combines hands-on engineering with people development and cross-functional governance to deliver production-ready, auditable systems.
11 years of coding experience
19 years of employment as a software developer
PhD Candidate Linguistics, PhD Candidate Linguistics at University of California, BerkeleyBA Computer Science, BA Computer Science at Kalamazoo College
English
Stackoverflow
1,512reputation
216kreached
35answers
3questions
Github Skills (69)
webcam10
camera10
git-addons10
wave9
pool9
controller8
git7
xctest6
html6
taiga6
javascript6
uiview6
mixpanel6
iphone6
css6
Programming languages (11)
Github contributions (5)
HubitatCommunity/hubitat-zwavemultichannel-pe653
Aug 2018 - May 2020
Development of a Hubitat DTH for the Z-Wave Intermatic PE953 Pool Controller
Contributions:9 releases, 68 commits, 10 PRs in 1 year 9 months
raspberry-picontrollerpoolwavehubitat
tooluser/CreeperEyes
Oct 2022 - Dec 2024
Contributions:1 push, 1 branch, 1 comment in 2 years 1 month
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