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Accounting Specialist AP, Travel & Payroll (Government Contractor, Deltek Costpoint)". Bedford, MA.

MAINSAIL Group
Bedford, MA Other
POSTED ON 9/28/2026
AVAILABLE BEFORE 10/26/2026

Accounting Specialist | AP, Travel & Payroll | Government Contractor | Bedford, MA


MAINSAIL Group is a defense contractor in Bedford, MA, next to Hanscom AFB, and we are growing fast. We are hiring an Accounting Specialist to own the transaction side of the house in Deltek Costpoint (travel, expense reports, accounts payable, purchasing, timekeeping and payroll inputs, bank entry) for the company and the joint ventures we manage. You report to our Controller and work daily with our Senior Project Accountant.


You will own


  • Travel: auditing trips to the JTR and FAR 31.205-46, entering expense reports, keeping each contract's trip register current
  • Corporate card and employee expense reports, coded and reconciled, receipts closed out
  • Accounts payable from intake through voucher, approval routing and payment prep; vendor files and 1099s
  • Purchasing and ODCs
  • Timesheet completion and approvals in Costpoint T&E, timesheet-to-payroll reconciliation, new-hire setup
  • Cash receipts, bank and credit card transaction entry


You bring


  • 3 years in AP, expense or travel processing at a government contractor
  • Working knowledge of the JTR, GSA per diem and travel-cost allowability
  • Hands-on experience in a government-contractor accounting system, Deltek Costpoint strongly preferred
  • Accurate, organized, and comfortable working to a checklist and a due date. Payroll, ODC and DCAA exposure are pluses


Location and pay

Bedford, MA, primarily on-site, this seat handles mail, receipts and payment documents; hybrid days possible. No clearance required. $65,000–$80,000 plus medical, dental, safe-harbor 401(k), PTO and holidays.


To apply

Apply through LinkedIn or email your resume to hr@mainsailgroupinc.com with "Accounting Specialist" in the subject. In your note, tell us which Costpoint modules you have used and roughly how many expense reports or vouchers you processed in a typical month.


MAINSAIL Group is an equal opportunity employer.

Salary : $65,000 - $80,000

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