Turning Space into a Transportation Layer for Earth

Who We Are

: Inversion builds advanced reentry systems to deliver next-generation capabilities from space. Our mission is to make Earth radically more accessible by turning Low-Earth Orbit into an on-demand logistics domain. We see space not as a destination, but as a platform — one that unlocks unprecedented speed and global reach.

Our spacecraft are designed to deliver payloads anywhere on Earth in under an hour, operating through extreme reentry conditions and landing with high precision. These systems open the door to new ways of testing, delivering, and operating at hypersonic speeds. Inherently dual-use, our technology is built to meet urgent national security needs while laying the groundwork for future commercial applications.

S. Space Force and NASA, Inversion is pushing the boundaries of what’s possible in space-based defense and logistics. Position Overview: We are a rapidly growing aerospace startup at an inflection point.

As our first HR hire, you will build the People function from the ground up designing the systems, programs, and culture infrastructure that will carry us through our next phase of growth. This role starts as a hands-on individual contributor but is explicitly designed to grow into a people manager within 12–24 months, giving you the opportunity to shape both the function and the team beneath you. You will report directly to the Senior Director of Talent People and have a true seat at the table on people decisions and interface directly with the CEO.

Given the nature of our work, compliance is non-negotiable. You will be the company’s authority on California employment law and federal contractor HR obligations protecting the company while building a culture where people genuinely want to work.

Key Responsibilities

: Onboarding Offboarding Design and own a structured new hire onboarding program, including orientation, I-9 compliance, and 30/60/90-day check-ins Partner with hiring managers to ensure smooth pre-boarding and day-one experiences Manage offboarding, exit interviews, and CA-compliant final pay processes

Benefits

Administration Own health, dental, vision, 401(k), and ancillary

programs end-to-end Manage open enrollment including employee communication and carrier coordination Ensure compliance with CA continuation

Requirements

Pay Transparency

, and mandatory leave Support federal contractor compliance: OFCCP, EEO-1 reporting, VEVRAA, Section 503, and applicable FAR HR clauses Maintain and annually update the employee handbook and all HR policies Performance Management Design and run the performance review cycle: goal setting, mid-year, and annual reviews Train and coach managers on feedback frameworks, calibration, and documentation best practices Build the infrastructure for career ladders and growth conversations as the company scales Engagement Culture Run employee engagement surveys and translate results into actionable programs Partner with leadership on recognition and culture-building initiatives Be a visible, trusted presence across all teams.

Human Resources Manager