HR Administrator

Reporting directly to the CEO, the HR Administrator is the on-site HR and operations resource at Slingshot, keeping day-to-day people and workplace operations running smoothly. This role administers benefits and HRIS processes, maintains accurate employee records, coordinates offboarding, supports compliance, manages office facilities and vendor relations, and runs the logistics behind performance and engagement programs. Working alongside an external HR consultant and the Legal team, the HR & Office Administrator handles routine HR and office management matters directly and escalates complex or sensitive issues. The ideal candidate is organized, detail-oriented, and dependable, with a strong service mindset and the discretion to handle confidential information.

See what Cell Mimics can do

About Slingshot Biosciences

• Serve as the first point of contact for routine employee questions about HR policies, benefits, and processes.
• Escalate employee relations matters and complex or sensitive issues to the external HR consultant or Legal, and maintain confidential documentation.
• Maintain required federal and California labor law postings and track completion of California harassment prevention training.
• Maintain audit-ready HR documentation in support of compliance with California, federal, and applicable employment law requirements.

• Administer performance review cycle logistics, including scheduling, tracking completion, and answering manager process questions.
• Distribute Employee Handbook and policy updates and track employee acknowledgments.
• Support employee engagement and culture initiatives, including coordinating company events.

• Manage day-to-day office operations to ensure a safe, clean, organized, and productive workplace environment.
• Serve as the primary point of contact for office-related inquiries, supplies, equipment maintenance, and facilities support.
• Monitor and order office, kitchen, and administrative supplies; manage vendor relationships and purchasing within approved budgets.
• Liaise with building management, landlords, IT support, and external vendors for facility repairs, maintenance, space planning, and security access.
• Coordinate logistics for on-site meetings, company events, catering and visitor reception.

• Minimum 3+ years of HR administrator, coordinator, or HR operations experience; life sciences, biotech, or other regulated environment a plus.
• Experience with ATS platforms (Greenhouse preferred) and HRIS systems (NetSuite SuitePeople HR or equivalent).
• Working knowledge of California and federal employment law fundamentals.
• Proven ability to handle sensitive and confidential employee information with discretion.
• PHR, PHR, or SHRM-CP certification a plus.

Our north star is to make healthcare more accessible around the world. We are doing this by advancing cell biology to develop innovative solutions for human health.

At Slingshot, we value diversity and believe that a variety of backgrounds and experiences leads to more innovative ideas and a better understanding of our customers. Passion is at the core of our values, and employees are encouraged to pursue their passions in their work and contribute to the company's overall mission.

Slingshot Biosciences is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.

Legal authorization to work is required for all roles. Employment eligibility will be verified in accordance with applicable laws in the country where the position is based. For U.S.-based roles, this includes completion of required employment eligibility verification. For international roles, employment may be facilitated through an Employer of Record (EOR) in compliance with local regulations.