Description Accounting/ HR Administrator Location: On-site, Monday–Friday, San Mateo Type: Full-Time | Mon - Fri from 8a-5p Seeking a detail-oriented professional to support both our HR and Accounting teams. This role is ideal for someone with experience in QuickBooks and ADP, looking to grow their skills across payroll, HR administration, and general accounting. Key Responsibilities Human Resources Support + Maintain employee records and handle onboarding, status changes, and terminations in ADP + Assist with biweekly payroll processing and respond to payroll-related questions + Support recruitment: post jobs, schedule interviews, and coordinate new hire onboarding + Provide administrative support for benefits, leave of absence, and workers’ comp + Ensure compliance with federal, state, and local employment laws Accounting Support + Support AP/AR processes + Process vendor invoices + Reconcile bank and credit card statements in QuickBooks + Assist with month-end close and financial reporting General Administration + Serve as a point of contact for HR and payroll questions + Maintain organized and confidential filing systems + Provide additional support to HR and Accounting leadership as needed Requirements Qualifications + 3+ years of experience in HR and/or Accounting support + Proficiency in QuickBooks and ADP Workforce Now (required) + Strong understanding of HR processes and basic accounting principles + Excellent attention to detail, organization, and multitasking skills + Strong communication and interpersonal skills + Proficient in Microsoft Office (Word, Excel, Outlook) + Ability to work independently and as part of a team + Must be available to work full-time on-site in San Mateo Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles. Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app (https://www.roberthalf.com/us/en/mobile-app) and get 1-tap apply, notifications of AI-matched jobs, and much more. All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information. © 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking “Apply Now,” you’re agreeing to Robert Half’s Terms of Use (https://www.roberthalf.com/us/en/terms) .