DAWN WILLIAMS
Goodyear,AZ
Summary
Detail oriented Accounting Specialist with extensive experience in government contract billing, invoicing, and revenue operations. Proven background supporting billing processes, including contract setup, invoice generation, payment application, and account reconciliation. Experienced billing contracts, Accounting Payable, Accounts Payable Collections and Customer Services.
Overview
3
3
years of post-secondary education
26
26
years of professional experience
Work History
AR Collection Specialist
Ashton Carter
Scottsdale, AZ
04.2026 - Current
- Resolved past-due balances by placing and receiving calls; identified barriers to payment, such as system errors or missing documentation; negotiated payment arrangements and documented settlements.
- Customer Engagement & A/R Management: Act as the primary post-acquisition and onboarding contact to validate account setups and billing accuracy; follow up on the first invoice to confirm receipt, contacts, and payment timelines; manage a commercial A/R portfolio tied to M&A activity to resolve legacy discrepancies.
- Collaborated with Sales, Billing, Customer Success, and Integration teams; escalated high-risk accounts with thorough documentation to ensure timely resolution.
- Documented communications in GetPaid and Salesforce; matched payments for unapplied cash efforts and conducted skip tracing for lost customer contacts.
Financial Analyst
GDIT
VA
09.2024 - 10.2025
- Analyzed various billing, financial, and operational reports to ensure accuracy and compliance.
- Analyzed billing, financial, and operational reports, ensuring accuracy and compliance to support effective decision-making.
- Configured and aligned new contracts within billing systems with contract terms to facilitate accurate billing.
- Maintained contracts and billing operations with meticulous attention to detail, ensuring seamless processing.
Accounts Receivable Specialist
Spectrum Financial Alliance
Rockville, MD
11.2023 - 08.2024
- Implemented and ensured effective processes for tracking and processing invoices.
- Reviewed and processed customer invoices for accuracy, ensuring compliance with sales order specifications.
- Ensured checks and wire payments were posted accurately and in a timely manner.
- Communicated promptly with management and department heads on accounts receivable issues to facilitate timely resolutions.
- Researched and resolved issues related to overdue invoices.
- Maintained general accounting systems.
- Contributed to development of policies and processes that streamlined accounting and financial reporting.
Billing Specialist
Ashton Carter
Bethesda, MD
02.2023 - 11.2023
- Processed billing on a weekly, monthly, and quarterly basis.
- Processed customer payments, including application and research of discrepancies.
- Processed customer payments, applying and researching discrepancies to ensure accurate account reconciliation.
- Uploaded invoices to customer portals and billing systems, facilitating timely payment processing.
- Created new customer accounts and updated existing accounts.
- Researched and resolved customer billing requests, enhancing customer satisfaction through prompt issue resolution.
- Assessed contracts and performed ongoing contract maintenance.
- Created new customer accounts and updated existing accounts.
Telecom Engineering Senior Specialist
NTT DATA
Germantown
02.2020 - 02.2023
- Conducted billing analysis and managed vendor relationships for telecommunications circuits and hardware systems to ensure accuracy and efficiency.
- Conducted billing and invoice validation for wireless and wired line services.
- Managed billing disputes in coordination with Accounts Payable and Telecom teams.
- Resolved billing disputes in collaboration with Accounts Payable and Telecom teams, streamlining conflict resolution.
- Identified and documented inactive devices to facilitate termination process.
- Activated and maintained communication devices, including pagers and cell phones.
- Updated and organized clinical codes for accurate record-keeping.
- Cultivated and sustained relationships with internal and external vendors and customers to enhance service delivery.
Senior Accounts Payable Analyst
QUADRANT
Germantown, MD
01.2017 - 02.2020
- Processed telecom payments and managed costs across departments to ensure accurate financial tracking.
- Managed and processed invoices while coordinating categorization of new circuits and generating financial reports to support decision-making.
- Documented and distributed financial information to program management and internal teams for transparency and informed budgeting.
- Processed new circuit orders promptly in collaboration with the installation team.
- Oversaw the management of new circuit orders to ensure timely processing and fulfillment.
Accounts Receivable Specialist / Collections
Fisher Bio Services
08.2013 - 10.2016
- Oversaw past-due accounts receivable and corrected misapplied payments to enhance accuracy.
- Collaborated with managers and project managers to resolve outstanding accounts receivable issues.
- Processed and submitted invoices using multiple invoicing systems to ensure prompt payments.
- Oversaw monthly billing processes for various contract types, including FFP, CPAF, CPFP, and TM.
Collection Specialist
FCO (Fair Collections and Outsourcing)
02.2012 - 06.2012
- Executed third-party collection efforts to recover outstanding debts from consumers.
- Managed third-party collection processes to recover debts.
- Processed credit card and electronic check payments.
- Facilitated credit card and electronic check payments to streamline collection processes.
Billing Administrator
Geologics Corporation
01.2007 - 05.2011
- Processed TM, CPFF, FP, and CPAF billing to ensure timely revenue recognition.
- Tracked and monitored unbilled costs to identify potential billing issues.
- Managed accounts with overdue payments to ensure timely resolutions.
- Conducted monthly meetings regarding at-risk accounts with management, project managers, and Accounts Payable.
Accountant
EG&G Technical Services
Germantown , Maryland
08.2000 - 04.2004
- Managed month-end and year-end closings.
- Exported financial data to enhance reporting accuracy for internal and external stakeholders.
- Managed testing of financial system upgrades to ensure seamless integration and functionality.
- Prepared monthly and semi-monthly billings.
- Reconciled financial accounts monthly to ensure accuracy.
- Conducted thorough testing of financial system upgrades to ensure all functionalities were operational.
- Delivered IT training and support to accounting staff, improving software proficiency and operational efficiency.
Education
General Studies
Seneca Valley High School
Germantown, MD 06.1979 - 05.1982
Skills
- Accounts Receivable
- Billing & Invoicing
- Invoice processing
- Payment Processing
- Accounts Payable
- Financial Reporting
- Account Reconciliation
- Balance Sheet Reconciliation
- Budgeting
- Government Contract Billing
- Contract management
- Vendor management
- Salesforce
- Microsoft Excel
- ERP Systems
- SAP
- Oracle
- NetSuite
- Microsoft Dynamics GP
- QuickBooks
- Deltek Costpoint / GCS Premier
- MAS 90
- Jamis
- OBIE
- Customer Service Coordination
- Account Reconciliation
Timeline
AR Collection Specialist
Ashton Carter
04.2026 - Current
Financial Analyst
GDIT
09.2024 - 10.2025
Accounts Receivable Specialist
Spectrum Financial Alliance
11.2023 - 08.2024
Billing Specialist
Ashton Carter
02.2023 - 11.2023
Telecom Engineering Senior Specialist
NTT DATA
02.2020 - 02.2023
Senior Accounts Payable Analyst
QUADRANT
01.2017 - 02.2020
Accounts Receivable Specialist / Collections
Fisher Bio Services
08.2013 - 10.2016
Collection Specialist
FCO (Fair Collections and Outsourcing)
02.2012 - 06.2012
Billing Administrator
Geologics Corporation
01.2007 - 05.2011
Accountant
EG&G Technical Services
08.2000 - 04.2004
General Studies
Seneca Valley High School
06.1979 - 05.1982