People Operations Generalist

Atomic Semi • San Francisco, CA

10d • $82,000 - $135,000 • Onsite

About The Position

We’re hiring a People Operations Generalist to run and build the day-to-day systems that support our people at Atomic Semi.
In this role, you’ll own and evolve the core of People Operations — payroll, benefits, immigration, onboarding, and the full employee lifecycle. You’ll make sure the fundamentals run smoothly, accurately, and on time, and you’ll also have the opportunity to improve how we do things as we grow. You’ll be the person employees come to with questions, guidance, and support, and a key partner in shaping a thoughtful, scalable People experience.
This role is perfect for someone who loves getting the details right, enjoys solving real problems, and is excited to build modern People Operations from the ground up at a company reinventing how semiconductors are made.

Requirements

• 2–4 years of HR experience in a startup/high-growth environment, or 4+ years in a larger organization.
• Experience with benefits administration and open enrollment.
• Working knowledge of U.S. employment law and HR best practices.
• Experience running payroll, onboarding, and offboarding.
• Familiarity with U.S. immigration processes.
• Strong organizational skills and attention to detail.
• Discretion and professionalism with sensitive information.

Nice To Haves

• Familiarity with OSHA or regulated/lab environments.
• Experience with external partners like insurance brokers and outside counsel.
• Startup experience during growth phases.

Responsibilities

• Own onboarding, offboarding, employee lifecycle changes, and records management.
• Run end-to-end payroll processing in Rippling.
• Manage benefits administration, open enrollment, and employee communications.
• Maintain accurate employee data across HRIS, payroll, and benefits platforms.
• Be the go-to person for employee questions on policies, benefits, and HR programs.
• Own U.S. immigration processes and partner with immigration counsel to track visa status, deadlines, and compliance.
• Support compliance with federal, state, and local employment laws. Handle required postings, audits, training, and policy updates.
• Support HR projects like policy rollouts, learning programs, and compliance initiatives.
• Find ways to streamline and improve operations.

Benefits

• Medical, Dental, and Vision insurance
• Generous Paid Time Off inclusive of Holidays and Sick Time
• Visa Sponsorship
• Life and Disability Insurance
• Paid Parental Leave
• 401(k) retirement plan
• Weekly Learning & Development opportunities
• Commuter Benefits including Parking and Late Night Uber rides from the office
• Lunches daily, Dinners 3x per week, Stocked Office Kitchen with Snacks and Spindrifts

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed
• Number of Employees: 1-10 employees