Payroll & Office Operations Specialist (part-time)

About the role

Basis Technologies is seeking a Payroll and Office Operations Specialist to join its growing US team in Irving, Texas. This hands‑on role combines US payroll tax compliance with day‑to‑day office operations, IT coordination, and HR support, reporting closely with the UK‑based Payroll Manager and partnering with HR, IT, and Finance teams.

Schedule

Location: Irving, TX, USA. Hours: Mondays and Fridays 9 am‑1 pm (remote); two days between Tuesday‑Thursday 9 am‑6 pm in the office (days may vary based on company needs).

Responsibilities

• Manage federal, state and local payroll tax compliance across multiple states
• Prepare and submit quarterly and annual payroll tax filings
• Register and maintain payroll tax accounts as the company expands into new states
• Administer unemployment taxes (SUTA and FUTA) and state or local withholding filings
• Respond to tax notices and liaise directly with tax authorities
• Support payroll tax audits and compliance reviews
• Manage day‑to‑day office operations, including supplies, mail and vendor coordination
• Support new‑hire onboarding and employee offboarding, including building and system access
• Administer visitor and building access, and represent Basis in building‑required training
• Coordinate in‑office events and support the Marketing team with in‑office logistics
• Support company‑wide initiatives such as volunteer days and DEI programs
• Manage laptop and mobile phone inventory in coordination with the IT team
• Administer the office mobile phone and voicemail system
• Provide light‑touch IT support for office events and meeting rooms

Requirements

• Demonstrable knowledge of US payroll tax compliance, ideally across multiple states
• Prior experience in a small or scaling office environment
• Comfortable liaising directly with tax authorities and resolving notices independently
• Experience registering and maintaining payroll tax accounts
• Hands‑on, adaptable approach, equally comfortable with compliance detail and everyday office logistics
• Strong organizational skills and comfortable managing a varied workload
• Based in, or able to work on‑site in, Irving, Texas
• Desirable: Experience with HiBob or a similar HR/payroll platform
• Desirable: Experience supporting employee benefits administration

Benefits

• Competitive base salary and bonus
• 401(k) with employer match
• Medical, dental and vision insurance
• Health Savings Account (HSA)
• Flexible Spending Account (FSA)
• Life and AD&D coverage
• Short and long‑term disability insurance
• Employee Assistance Programme (EAP)
• PTO starting at 15 days, plus public holidays
• Enhanced Parental Leave
• Paid Volunteer Day
• Learning and Development budget
• Employee referral bonus
• Mental Health First Aiders programme
• STEM Ambassador Programme Partnership