Serova - Founding Product Engineer

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San Francisco, California, United States Serova designs personalized mRNA cancer vaccines (founded 2024, 20 people, $35M raised). Founding role owning product end to end: design, frontend, backend. Comp: $185K-$205K base (flex for exceptional) + 0.05%-0.25% equity. Location: On-site 5 days (SF or London); remote only for exceptional; relocation case-by-case. Visa: Open to visa transfers (OPT, H1B transfers). Responsibilities Build Serova's first patient- and clinician-facing product on top of internal data (antigen prediction, vaccine design, case status) Rebuild the scientific dashboard from…