CHRISTOPHE ROSAMONT
Summary
Extensive experience in maintaining the integrity of accounting systems within organizations demanding strict financial oversight. Proven expertise in government and commercial invoicing processes. Demonstrated ability to enhance financial accuracy and compliance through meticulous management practices.
Overview
21
21
years of professional experience
Work History
Senior Procurement Specialist
CRSS Copper River Shared Services
Chantilly, Virginia
01.2024 - 03.2026
- Generated purchase orders from sales orders for government and commercial awards.
- Reconciled company margin tool with selected vendor quotes.
- Processed verified vendor invoices for payment by accounts payable.
- Collected packing slips and proof of delivery for submission to accounts receivable billing analyst.
- Issued vendor invoices for accounts receivable invoicing to end users.
- Filled internal purchase requests from specified vendors.
- Maintained electronic copies of supporting documents within shared files.
Senior Billing Analyst (Contract / Temporary)
CRSS Copper Shared Services
Chantilly, Virginia
05.2023 - 12.2023
- Collected and submitted packing slips and proof of delivery from vendor sites for accounts receivable documentation.
- Secured five to six million dollars in payments from one client through 50 to 60 invoices.
- Managed daily sales outstanding, effectively reducing aging invoices of up to two years.
- Collaborated with billing analysts to ensure accurate and timely submission of invoiced material.
Contract Closeout Specialist
Accenture Federal Services
Chantilly, Virginia
04.2020 - 04.2023
- Created final invoices for government customers utilizing Excel spreadsheets and Cost Point accounting software on hybrid contracts.
- Balanced billed and unbilled costs to validate final bill rates.
- Ensured timely submission of completed invoices for processing.
- Reviewed award modifications against billed, unbilled, and indirect provisional rates for contract years.
- Coordinated with Office of Financial Management to secure net payment terms.
Senior Billing Analyst
ABL Advance Bioscience Laboratories
Rockville, Maryland
02.2019 - 01.2020
- Generated monthly invoices for government clients under cost-plus-fixed-fee contracts using Excel and Costpoint software.
- Ensured accurate posting of invoices into Costpoint accounting system.
- Submitted completed invoices promptly to maintain cash flow.
- Maintained organized electronic and hard copy files for audit purposes.
- Collaborated with contract administrators and project teams for seamless project closeouts.
- Reconciled monthly billed and unbilled items to ensure financial accuracy.
- Communicated with Office of Financial Management to uphold net payment terms.
Senior Billing Analyst (Contract / Temporary)
MEI Millennium Engineering Integration
Arlington, Virginia
12.2017 - 01.2019
- Generated monthly invoices for commercial and government clients on cost plus fixed fee contracts using Excel and Cost Point software.
- Ensured accurate posting of invoices in Cost Point accounting software.
- Submitted completed invoices promptly through web-based systems, including Wide Area Workflow and proprietary platforms.
- Maintained electronic invoice copies within shared files for easy access.
- Collaborated with contract administrators and project teams to support project closeouts and final invoicing.
- Reconciled monthly billed and unbilled items to ensure accuracy.
- Contacted customers to uphold net payment terms throughout invoicing process.
Senior Billing Analyst
HTSI Honeywell Technology Solutions Inc
Columbia, MD
01.2005 - 02.2016
- Generated weekly, bi-weekly, and monthly invoices for commercial and government clients using Excel spreadsheets and Costpoint accounting software.
- Calculated manual billing for complex, non-routine arrangements to meet customer specifications.
- Gathered supplemental billing information to fulfill customer requirements effectively.
- Reconciled billed and unbilled items on a weekly, bi-weekly, and monthly basis.
- Obtained necessary approvals for generated invoices from contract administrators and project teams.
- Posted invoices accurately into Costpoint accounting software for financial tracking.
- Submitted completed invoices promptly into web-based systems such as Wide Area Workflow (WAWF).
- Maintained organized electronic and hard copy files to support billing processes.
Education
Some College (No Degree) - Finance
Morehouse College
Atlanta, GASkills
- Microsoft Windows 11 and Excel (Pivot Table)
Deltek Costpoint version 81
Cognos software
WAWF system
IPP platform
VIP tool
- Other Commercial Customer Web Based Invoice Cost Submission Platforms
* Exostar
Timeline
Senior Procurement Specialist
CRSS Copper River Shared Services
01.2024 - 03.2026
Senior Billing Analyst (Contract / Temporary)
CRSS Copper Shared Services
05.2023 - 12.2023
Contract Closeout Specialist
Accenture Federal Services
04.2020 - 04.2023
Senior Billing Analyst
ABL Advance Bioscience Laboratories
02.2019 - 01.2020
Senior Billing Analyst (Contract / Temporary)
MEI Millennium Engineering Integration
12.2017 - 01.2019
Senior Billing Analyst
HTSI Honeywell Technology Solutions Inc
01.2005 - 02.2016
Some College (No Degree) - Finance
Morehouse College