Human Resources Operations Manager

Founding HR / People Operations | Series A AI Startup | San Francisco (In-Person)Macmillan Davies is recruiting on behalf of a well-funded Series A AI company.They're hiring their first dedicated HR professional to own and scale core HR operations as they grow from 50 to 100+ employees.This is a greenfield, high-ownership role for someone who thrives on bringing structure to complexity and wants to build the People function from the ground up.What You'll Own:Full employee lifecycle: onboarding, offboarding, transitions, terminationsHRIS management (Rippling), compliance, and employment documentationBenefits administration and payroll partnership with FinanceBuilding scalable HR workflows and processesEmployee relations, severance, and vendor/counsel partnershipsFuture scope: performance management, manager enablement, culture programsYou'll Be a Fit If:4-7 years HR experience, ideally as a first or early HR hire at a VC-backed startupStrong California employment law fluency (in-person workplace considerations)HRIS expertise (Rippling preferred) and payroll fundamentalsProven experience handling terminations and severance with care and complianceComfortable operating independently in a fast-moving environmentBased in SF Bay Area and available 5 days/week in-personCompensation & Benefits:Up to $185K baseMedical, dental, vision, 401(k)Daily catered lunch, $150/month wellness benefit, commuter benefitsThis is a rare opportunity to be the first HR hire at a commercially successful, fast-scaling AI company with real product-market fit and enterprise traction.

Created: 2026-05-09