Payroll, HR & Accounting Specialist

SteelWave LLC; San Mateo (CA); On-site; USD 70,000 - 95,000; Full time

Job summary

SteelWave LLC is seeking a detail-oriented Payroll/HR Administrator to own multi-state payroll for 75–100 employees and support core Payroll/HR operations while assisting the accounting team. This hands-on role requires accuracy, confidentiality, and initiative.

Responsibilities include processing payroll/time reporting, handling HR transactions, coordinating with TriNet, preparing HRIS reports, and supporting recruiting, onboarding, and audits.

Qualifications

• Bachelor’s degree or equivalent experience.
• 2–5 years payroll processing and time reporting experience.
• Working knowledge of federal and state wage and hour laws.
• Multi-state payroll experience preferred.
• Strong attention to detail and math aptitude for payroll calculations.
• Excellent organization and ability to work independently.
• Clear written and verbal communication; service-oriented with employees.
• High discretion with confidential information.
• Proficiency in Microsoft Office, especially Excel.

Responsibilities

• Process multi-state payroll and time reporting for exempt and non-exempt employees.
• Process payroll and personnel transactions, including hires, terminations, pay changes, bonuses, garnishments, and benefit adjustments.
• Serve as primary liaison with TriNet (PEO): maintain system setup, resolve discrepancies, and build custom reports.
• Prepare HRIS reports for internal and government reporting; support 401(k) reconciliations and annual audits.
• Coordinate recruiting and onboarding/offboarding, including the applicant tracking system, I-9s, and background checks.
• Support performance reviews, benefits analysis, HR training, and other HR projects; provide backup to administrative staff.
• Support accounts payable, including employee expense reports and weekly check/ACH payment runs.
• Prepare wire requests and assist with processing wires.
• Assist with corporate accounting, including cost allocations.

Skills

Payroll processing

HR operations

Attention to detail

Organization

Communication

Education

Bachelor's degree or equivalent

Tools

TriNet

HRIS

Excel

Job description

SteelWave LLC is seeking a detail-oriented Payroll/HR Administrator to own multi-state payroll for 75–100 employees and support core Payroll/HR operations while assisting the accounting team. This hands-on role requires accuracy, confidentiality, and initiative.

Responsibilities include processing payroll/time reporting, handling HR transactions, coordinating with TriNet, preparing HRIS reports, and supporting recruiting, onboarding, and audits.