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Director, Human Resources

Astro Mechanica - San Francisco, CA, USA - In-office - posted 2026-10-13

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Astro Mechanica is a vertically integrated aerospace company developing scalable technology platforms for critical infrastructure and mission operations. Backed by leading venture and strategic investors including Andreessen Horowitz, Giant Step Capital, United Airlines Ventures, and Voyager Ventures, the company combines aerospace engineering and quality standards to deliver high-performance, reliable solutions for demanding operating environments. As Director of Human Resources, you will shape and execute the People strategy and roadmap in partnership with the Head of People and leadership team. You'll translate business goals into a focused People roadmap, define the company's People philosophy, establish operating rhythms and decision-making practices, and identify measures of success. You'll deliver priority initiatives iteratively and determine when to add specialist expertise and team capacity. You will design, launch, and administer programs across performance management, manager development, career growth, and engagement. This includes creating communications, manager resources, and follow-through mechanisms. You'll support compensation planning, market benchmarking, and review cycles in partnership with the Head of People and Finance. A key responsibility is equipping managers to set expectations, give feedback, and build an employee-first culture with high standards and accountability. Operationally, you'll own day-to-day employee lifecycle operations including onboarding, offboarding, and benefits administration. This spans employment documentation, employee question triage, open enrollment, renewals, and vendor coordination. You'll establish and maintain multi-state HR compliance practices, proactively identifying gaps and partnering with Legal, Finance, and external advisors to address risk as the company scales. You'll manage and continuously improve the Rippling HR system, employee records, workflows, and reporting, building scalable processes and applying thoughtful automation. You'll advise leaders on team structure, talent planning, and organizational change. You'll provide day-to-day guidance on policies and performance matters, managing sensitive situations with discretion and sound judgment. You'll synthesize qualitative and quantitative data, employee feedback, and management insights to inform People priorities and organizational decisions. The company values in-office collaboration and expects five days per week in the San Francisco office as an essential part of the role. REQUIREMENTS: - 10+ years of progressive HR experience spanning People strategy, operations, programs, and business partnership, including building in resource-constrained startups and leading at scale - Hands-on experience managing employee lifecycle processes, benefits administration, HR systems, and multi-state compliance, with accountability for both accurate execution and continuous improvement - Track record of establishing scalable processes and programs that evolve with the business - Excellent judgment, business acumen, and communication skills, with demonstrated success advising senior leaders, navigating complex people decisions, and translating business priorities into effective organizational practices - Strong grounding in multi-state compliance and operational risk - Experience leading teams, managing vendors and external partners, and delivering complex initiatives from strategy through execution - Comfort with both strategic direction-setting and hands-on operational work

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