Jeffrey 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鈥攍eading 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鈥攁 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 Academy
Computer 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
Contributions:98 pushes, 1 branch in 3 years 9 months
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