Jeffrey Fenster
Senior Product Manager at Ostro
Philadelphia, Pennsylvania, United States
Summary
👤
Senior🎓
Top SchoolJeffrey Fenster is a Senior Product Manager in Philadelphia with a decade of experience building AI-powered platforms that bridge product, engineering, and design. He has repeatedly moved systems from frontend implementation to production AI features—leading teams that delivered NLP/vector search, RLHF fine-tuning, and automated LLM engagement to measurably cut time-to-hire and churn while generating seven-figure ARR. Comfortable both in code and in strategy, he started as a frontend and 3D/motion graphics artist, which gives him a rare eye for UX and visual detail in complex AI products. At Nebula.io he scaled cross-functional teams and shipped differentiated talent search and outreach experiences; he now leads product at Ostro, continuing to turn research-driven ML work into usable SaaS. Colleagues describe him as pragmatic yet creative—a builder who blends technical depth with design sensibility to move ambiguous AI projects to impact.
10 years of coding experience
9 years of employment as a software developer
Full Stack Web Development, Full Stack Web Development at Fullstack AcademyComputer Science & Digital Media Computer Science and Computer Graphics / Digital Media, Computer Science & Digital Media Computer Science and Computer Graphics / Digital Media at University of Connecticut
English
Github Skills (8)
mean-stack10
camanjs10
hammerjs10
firebase9
websocket9
javascript8
html8
ionic8
Programming languages (2)
Github contributions (5)
menshguy/personalSite
Sep 2018 - Jun 2022
Contributions:98 pushes, 1 branch in 3 years 9 months
henrybv/comic-book
May 2016 - Sep 2016
Real-time comic book builder with friends. Tell your story. Animate your life. Pow! Technologies used: MEAN Stack, HTML5/CSS3, Ionic, Firebase, Real-time / Web Sockets, Advanced & Custom JavaScript libraries: CamanJS, HammerJS. Check us out:
Contributions:64 commits, 12 PRs, 40 pushes in 4 months
camanjsfirebasehammerjsionicjavascript
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