Senior Payroll Specialist, Lambda

• This role is ideal for someone who thrives in a fast-paced environment, has a sharp eye for detail, and brings both technical payroll knowledge and a service-driven mindset to the table
• 3–4 years of experience managing end-to-end payroll, including multi-state and international payroll
• Proven background as a Payroll Specialist, Payroll Administrator, or similar role
• Hands-on experience with salaried, salaried non-exempt, and hourly payroll
• Familiarity with equity processing, tax withholding and W-2 generation
• Strong knowledge of payroll compliance requirements
• Experience processing payroll for 300+ employees
• Excellent attention to detail, data accuracy, and handling of sensitive information
• Ability to manage multiple priorities and work effectively in a deadline-driven environment

Desirable

• The People Team at Lambda is building the kind of company we all want to work for
• We move fast, cut through noise, and care deeply—about clarity, fairness, growth, and getting the details right
• From hiring to offboarding (and everything in between), we make sure every Lambda has the support, tools, and structure to thrive
• Our scope includes recruiting, rewards, L&D, employee relations, communications, and culture—all the things that shape a great place to work
• We’re looking for a Payroll Specialist to join our growing team at Lambda
• You’ll play a vital role in ensuring the accuracy, compliance, and timely execution of our U.S. and global payroll operations
• From managing multi-state payroll to supporting international employees via EORs like Rippling and Remote, you’ll help us create a seamless payroll experience that supports our employees and scales with our business
• Process bi-weekly and semi-monthly payroll for U.S.based employees across multiple locations
• Manage payroll operations with global EOR providers like Rippling and Remote to support international employees
• Ensure compliance with federal, state, and local wage, hour, and payroll laws and best practices
• Maintain and update employee payroll records, including tax information, direct deposit, and garnishments
• Process and submit employee equity transactions and ensure proper tax withholding
• Perform benefits reconciliation and ensure accurate deduction processing and enrollments
• Coordinate with HR and Finance teams to support compensation updates, bonuses, and benefit deductions
• Prepare and file payroll-related reports, including tax filings, W-2s, and year-end documentation
• Conduct audits and ensure payroll processes align with SOX compliance and company policy
• Manage time and attendance workflows, ensuring timely, accurate data collection
• Investigate and resolve payroll discrepancies quickly and professionally
• Identify opportunities to streamline and improve payroll processes for efficiency and accuracy
• Stay current on payroll-related laws, tax updates, and compliance requirements
• Assist with new state payroll tax registrations and ensure that Payroll is in compliance with federal, state, and local tax regulations, wage and hour laws and company policies
• Resolves payroll employee service request cases in JIRA
• Work on payroll projects and duties as needed