Human Resources Manager

Reposted 24 Days Ago
Be an Early Applicant
Vista, CA, USA
In-Office
134K-195K Annually
Senior level
Aerospace
The Role
Build the People function from scratch: run onboarding/offboarding, benefits administration, employee relations and investigations, California and federal contractor compliance, performance management, engagement programs, HRIS (Gusto) administration, headcount reporting, and partner with leadership. Start as an individual contributor and grow into a manager within 12–24 months.
Summary Generated by Built In

Advanced Reentry Technologies

Who We Are:

Inversion is an aerospace and defense company pioneering advanced reentry technology to enable next-generation capabilities from space. By combining high-performance materials, precision aerodynamics, and mission-driven autonomy, Inversion is transforming reentry into an operational capability for an entirely new class of missions.

The company’s highly maneuverable reentry spacecraft, Arc, is designed for rapid global cargo delivery, hypersonic testing, and other national security missions that require precise, controlled flight through the atmosphere. Arc creates an entirely new transportation domain, unlocking unprecedented speed and global reach.

Headquartered in Los Angeles, Inversion designs, manufactures, and integrates its spacecraft under one roof, enabling the company to move rapidly from concept to flight. The company is backed by leading investors including Y Combinator, Spark Capital, and Lockheed Martin Ventures, with customers across the U.S. government and commercial space industry.

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 benefits programs end-to-end
  • Manage open enrollment including employee communication and carrier coordination
  • Ensure compliance with CA continuation requirements, COBRA, and more

 Employee Relations

  • Serve as a trusted, neutral resource for employee concerns and any workplace issues
  • Conduct investigations
  • Advise and coach managers on performance

Compliance - California & Federal

  • Maintain full compliance with CA employment law: E.g. employee data, wage & hour, 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. The person employees come to

Team Leadership (Year 1–2)

  • Define the scope and timing of the HR Generalist role in partnership with the Senior Director of Talent & People
  • Establish clear ownership, workflows, and growth paths within the HR function
  • Build a team culture of trust, responsiveness, and continuous improvement

HR Operations & Systems

  • Own day-to-day HRIS administration (Gusto)
  • Maintain accurate headcount data, HR metrics, and reporting for leadership
  • Partner with Finance on headcount planning and compensation benchmarking

Required Qualifications:

  • 7+ years of HR generalist experience, with at least 3 years based in California
  • Deep, working knowledge of CA employment law
  • Experience with federal contractor compliance (OFCCP, EEO-1, VEVRAA, Section 503)
  • Demonstrated experience owning benefits administration through open enrollment
  • Hands-on employee relations experience including investigations and terminations
  • Experience operating as a solo HR professional or within a very lean team
  • Proficiency with HRIS platforms
  • Exceptional written and verbal communication; high discretion and sound judgment
  • Must have the ability to obtain and maintain a U.S. government Secret/Top Secret security clearance. 

Desired Qualifications:

  • Background in aerospace, defense, or technical startup environments
  • Experience hiring and onboarding HR team members

Our office headquarters is located in Playa Vista, CA. This position requires in-office presence.

The California annual base salary for this role is currently $134,000-$195,000. Pay Grades are determined by role, level, location, and alignment with market data.  Individual pay will be determined on a case-by-case basis and may vary based on the following considerations: interviews and an assessment of several factors that are unique to each candidate, job-related skills, relevant education and experience, certifications, abilities of the candidate and internal equity. 

ITAR Compliance:
To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.  
 
Equal Employment Opportunity:
Inversion provides equal employment opportunities to all employees and applicants without regard to race, color, religion, age, sex, gender identity, sexual orientation, national origin, veteran status, or disability.  
 
Inversion collects and processes personal data in accordance with applicable data protection laws.  If you are a US Job Applicant see the CCPA Privacy Policy Notice for further details.

Skills Required

  • 7+ years of HR generalist experience, with at least 3 years based in California
  • Deep, working knowledge of California employment law
  • Experience with federal contractor compliance (OFCCP, EEO-1, VEVRAA, Section 503)
  • Demonstrated experience owning benefits administration through open enrollment
  • Hands-on employee relations experience including investigations and terminations
  • Experience operating as a solo HR professional or within a very lean team
  • Proficiency with HRIS platforms
  • Exceptional written and verbal communication; high discretion and sound judgment
  • Must meet ITAR eligibility: U.S. citizen, lawful permanent resident, protected individual, or eligible to obtain required authorizations
  • Background in aerospace, defense, or technical startup environments
  • Experience hiring and onboarding HR team members

Inversion Space Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Inversion Space and has not been reviewed or approved by Inversion Space.

  • Parental & Family Support — Public company profiles highlight generous parental leave, indicating a formal policy for new parents. Benefit listings specifically call out parental leave as part of the offering.
  • Leave & Time Off Breadth — Unlimited PTO is described along with flexible hours, suggesting broad latitude to take time away when needed. Roles are largely on-site due to hardware work, but day-to-day scheduling flexibility is still referenced.
  • Fair & Transparent Compensation — Job postings consistently disclose base-pay ranges for many roles, providing upfront visibility into expected compensation. Listings show banded ranges aligned to seniority levels, aiding calibration for candidates.

Inversion Space Insights

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The Company
HQ: Torrance, CA
21 Employees
Year Founded: 2021

What We Do

Inversion is developing low-cost, high cadence re-entry vehicles. Returning cargo & resources will be essential for humanity to continue to grow within low-earth orbit and beyond. We believe in a future where returning from space is as common as launching to space. Join us: https://boards.greenhouse.io/inversionspace

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