Payroll & Accounts Payable Manager

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📍 Vienna, VA, USAFullTime💰 USD 105K–135K

About this role

About Antithesis

We build a platform that finds the bugs other testing approaches never see. Antithesis runs your entire system inside a deterministic simulation, breaks it in every way we can think of, and hands you a root cause with a perfect reproduction — no flaky tests, no false positives, no "works on my machine." Engineering teams debug faster and ship with far more confidence.

AI-generated code has made this work more urgent than ever. Agents write code faster than any human can, but faster code isn’t better code if it’s buggy, stuck in review, or quietly failing in production. The verification bottleneck is real, and it’s growing. That is precisely the problem Antithesis exists to solve. We’ve spent years quietly rethinking how the world approaches software reliability, and we’re just getting started.

We’re well-funded, deeply technical, and headquartered in Northern Virginia with satellite offices in London and San Francisco. Our team is in the office daily, which is how we take on hard problems together. If that sounds like fun to you, keep reading.

About the Role

Antithesis is looking for someone to own payroll and accounts payable as we scale. You'll keep employees paid accurately and on time, vendors paid to terms, and our expense processes clean while building the infrastructure that will support a much larger company.

This role sits at the operational center of finance. We run lean, so the work is hands-on. You should be comfortable managing competing deadlines, handling sensitive data, and improving process without being asked. We're in the office daily in Vienna, VA.

What you'll do

  • Process payroll for a multi-state workforce, accurately and on time

  • Manage accounts payable end-to-end: invoice intake, approval routing, payment execution, and reconciliation

  • Administer the employee expense reimbursement process and corporate card program

  • Support benefits administration in coordination with HR

  • Maintain payroll records and prepare reports for audit, tax, and internal purposes

  • Stay current on state and local payroll tax compliance as we add employees in new jurisdictions

  • Identify and drive improvements to payroll and AP systems and workflows

What we're looking for

  • 3+ years of payroll and accounts payable experience, ideally at a tech or growth-stage company

  • Experience with payroll platforms (Rippling, Gusto, ADP, or similar) and accounting systems (NetSuite preferred)

  • Working knowledge of multi-state payroll tax requirements

  • High bar for accuracy and ability to handle confidential information with discretion

  • Organized and deadline-driven

  • Process-oriented: you look for ways to make things better, not just keep them running

Frequently Asked Questions

What is the salary for the Payroll & Accounts Payable Manager role at antithesis?
The listed salary for this Payroll & Accounts Payable Manager position at antithesis is USD 105K–135K. This is an FullTime role.
Where is the Payroll & Accounts Payable Manager position at antithesis located?
This Payroll & Accounts Payable Manager role at antithesis is based in Vienna, VA, USA. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Payroll & Accounts Payable Manager role at antithesis full-time or part-time?
This is listed as a FullTime position. It is posted as a Payroll & Accounts Payable Manager role in the Ops department at antithesis.
Which team or department does the Payroll & Accounts Payable Manager at antithesis belong to?
This Payroll & Accounts Payable Manager position is part of the Ops department at antithesis. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Payroll & Accounts Payable Manager position at antithesis?
Click the "Apply Now" button on this page. You will be redirected to antithesis's official application portal hosted on ashby where you can submit your application directly.
When was the Payroll & Accounts Payable Manager job at antithesis posted?
This Payroll & Accounts Payable Manager position at antithesis was posted on Sep 7, 2026. Apply as soon as possible — early applications are often reviewed first.
Payroll & Accounts Payable Manager
antithesis · 💰 USD 105K–135K
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You'll be redirected to antithesis's official application page on Ashby ATS.