Payroll & Accounts Payable Specialist

EL SEGUNDO, CA | COLORADO SPRINGS, CO | MOORESVILLE, NC | OR FULLLY REMOTE | FULL-TIME |

REPORTS TO:

CONTROLLER

Cambium is a global company building the advanced materials base for reindustrialization — from AI-driven molecular design to agile domestic manufacturing. Defense, aerospace, and other high-performance applications demand materials that are stronger, lighter, and more resilient, delivered at unprecedented speed and scale. Our team of world-class scientists and engineers was assembled specifically to take on those challenges. Whether enabling hypersonic flight or protecting critical systems, our solutions solve mission-critical problems and push the limits of what’s possible.

Come join us and revolutionize advanced materials for defense, aerospace, and beyond.

Cambium is building out its accounting organization, and this is a foundational hire into it. You will run the transaction engine of the finance function — US payroll through ADP and Tri Net, purchase orders and vendor invoices in Ramp, corporate card coding, and export controls screening of the vendors and suppliers we buy from — and you will own the accuracy of how all of it lands in Intuit Enterprise Suite.

This is the seat where accuracy is not a preference. If you take quiet satisfaction in a clean AP aging, a payroll register that ties, and a vendor file that needs no explanation, this is your kind of work.

It is also a build role in a real sense. Most of what you will run does not yet exist in documented form. You will inherit responsibility before you inherit process, and you will be the person who writes the procedures, checklists, and calendars that the next three people in this function rely on. Cambium is fast-paced and entrepreneurial; we are looking for someone who brings order without bureaucracy, and asks the question rather than guessing at the coding.

The scope is deliberately transactional today. As the accounting organization takes shape, we expect this seat to take on general ledger and month-end close work and to grow toward a Staff or Senior Accountant role, so we would rather hire someone who wants that path than someone looking to stay in processing.

The position can be based at El Segundo, CA, Colorado Springs, CO, or Mooresville, NC — or fully remote, with occasional travel to Cambium sites.

• Run payroll
  • Process payroll end to end through ADP and Tri Net for all US entities, including new hires, terminations, salary and status changes, bonuses, commissions, retroactive adjustments, and off-cycle payments.
  • Review the register and preview reports every cycle before submission, reconcile against the prior period, and resolve variances before payroll goes out rather than after.
  • Work with People Ops on employee data changes so that the source of truth is unambiguous and flows correctly into each platform — including the differences in how a PEO and a direct provider handle the same change.
  • Reconcile payroll funding, tax deposits, and benefit deductions; chase and clear discrepancies with the providers rather than letting them age.
  • Support quarterly and annual filings and W-2 processing performed by the providers, including reconciliation of Forms 941 and state filings back to the general ledger.
  • Prepare payroll journal entries and payroll-related accruals, including PTO and bonus accruals.
  • Answer employee payroll questions accurately, quickly, and with absolute discretion.
• Own accounts payable and purchasing operations
  • Enter purchase orders in Ramp and move them through the approval workflow, working with requesters across R&D, Operations, and G&A to get them right the first time.
  • Enter and code vendor invoices in Ramp, match to purchase orders…