Senior Accounting Specialist

Sabel Systems designs and delivers digital engineering ecosystems for DoW programs, enabling teams to connect data, systems, and personnel within secure, scalable environments. Our solutions empower programs to make faster decisions, close sustainment gaps, and meet the digital acquisition requirements.

Rather than simply proposing transformation, we implement and operate it at scale. Our method is clear: we orchestrate existing tools into a governing system of record, ensuring government ownership of infrastructure and traceable decisions. There’s no vendor lock, no proprietary baselines, and no need for ATO rebuilds during transitions.

Sabel Systems is redefining modern defense acquisition. If you seek to solve complex challenges at scale and want your work to directly accelerate military capability while reshaping the DoW’s approach to digital engineering, this is the place for you.

Complexity Simplified. Mission Amplified.

• Process vendor invoices in the accounts payable system, including three-way matching of PO, receipt, and invoice, approval routing, scheduled payment runs, and aging review
• Provide general accounting support, including preparing journal entries, performing account reconciliations and supporting month-end and year-end close
• Prepare and review monthly general ledger account reconciliations, including balance sheet accounts, investigating variances, clearing reconciling items, and documenting audit-ready support
• Review semi-monthly timesheets for accuracy, completeness, and proper approval
• Maintain labor journals, ensuring labor costs are accurately recorded, allocated to the correct accounts, and charged in line with the contract period of performance (PoP)
• Participate in the implementation, configuration, testing, and user training of the new procurement system and document related processes. Experience with Zip or Ivalua a plus
• Review and approve requisitions through system approval workflows, confirming funding availability, accuracy, and compliance with contract terms and FAR requirements
• Create, track, and monitor purchase orders in the system, verifying contract terms and approvals and reconciling PO balances against contract funding
• Serve as liaison between accounting and the project team during the new system implementation
• Maintain vendor master data and vendor relationships, including setup, status, and compliance documentation, to support timely delivery, accurate invoicing, and reliable payment
• Other duties and special projects as assigned

• 5+ years of GL accounting experience
• Bachelor's degree in accounting or finance
• Experience working with various accounting systems
• Experience with general ledger maintenance, account reconciliations, and month-end close
• Strong balance sheet reconciliation skills, including variance analysis and timely resolution of reconciling items
• Working knowledge of federal compliance requirements, including FAR
• Familiarity with cost accounting for government contracts, including allocability and indirect cost treatment
• Experience preparing audit-ready documentation and supporting internal or external audits
• Experience with system implementations, conversions, or upgrades, including process documentation and user testing and training
• Working knowledge of GAAP, including accruals and expense recognition
• Advanced Excel and Microsoft Office (Outlook and Word) proficiency
• Strong organizational, time management, and prioritization skills; detail oriented; ability to meet tight deadlines in a fast-paced, growing company; excellent communication; ability to handle sensitive and confidential information
• Experience managing multiple clients, vendors, and stakeholders

• Experience with DoW accounting or finance a major plus
• Experience with ERP or general ledger systems
• Experience with systems such as Zip or Ivalua
   

Our Core Values

• Bias for Action: Decisive. Purposeful. Agile. We move with the speed of relevance to drive impact and progress.
• Integrity: Respect. Ethics. Transparency. We do what’s right and earn lasting trust.
• Delivery Excellence: Customer-obsessed. Mission-focused. Quality-driven. We deliver innovative outcomes that exceed expectations.

Our EVP Promise
Join Sabel Systems, where your contributions drive impact, your growth is continuously supported, and your well-being is at the center of how we work. Together we can build the future with purpose. Rewarding Impact. Building Futures Together.

CompensationCompensation will be determined in partnership with the Hiring Manager and may vary based on factors such as contract and labor category alignment, relevant experience, skills, education, certifications or licenses, and geographic location.

Sabel Systems is committed to offering all employees a competitive benefits and compensation package that is comprehensive enough to meet their goals and needs. Our employees are our most valuable asset, and one of Sabel Systems largest financial investments is our benefits program. As a valued member of the organization, employees are provided with a host of benefits to include healthcare; financial assistance in the event of illness, injury, disability, loss of work, or death; health savings accounts; retirement plans; paid time off; paid holidays; education and training program reimbursement, to name a few.

Equal Employment OpportunitySabel Systems is an equal opportunity employer. Our hiring decisions are based solely on qualifications, merit, and business need. We prohibit discrimination and harassment of any kind across all employment practices within our organization. Sabel Systems participates in the E-Verify Employment Verification Program.

Reasonable AccommodationSabel Systems is committed to providing equal employment opportunities and ensuring an accessible application process for all candidates. Applicants with disabilities who require reasonable accommodation to participate in the application or interview process are encouraged to contact us at [email protected] for assistance.