Modern Technology Solutions
417 open roles
Billing Specialist
$80k to $120k
Alexandria, VA, United StatesOnsitePosted Oct 29, 2026
Against the Alexandria typical range
Job description
Modern Technology Solutions, Inc. (MTSI) is hiring a Billing Specialist in Alexandria, VA. Qualified candidates must be U.S. citizens.
Responsibilities
- Manages program and project implementation and makes significant contributions to department goals and planning efforts.
- Knows when to escalate problems/questions to a higher level and work with internal and external customers.
- Provide “Cradle to Grave” billing and invoicing processes.
- Prepare complex invoices for various types of government contracts within MTSI's corporate Accounting department using various tools such as; (Cost Plus, Cost Plus Fixed fee, Firm Fixed Price, T&M, etc.).
- Communicate with Program Managers and Project Controllers to create monthly invoices for multiple contract types.
- Take accountability for the quality and timely delivery of all agreed-upon deliverables.
- Maintain direct correspondence with PMs and other POCs regarding assigned project costs for billing purposes.
- Reconcile billings and unbilled amounts monthly.
- Assist with collection activity and resolution of outstanding invoices from past due accounts.
- Interface with internal and external customers and work closely with the Contracts and Accounting personnel.
- Support various aspects of the monthly financial reporting to include analysis open billing details.
- Additional duties, responsibilities, and activities may be assigned at any time. Required Qualifications:
- Bachelor’s degree in related field
- 7+ years of experience with government contract invoicing and applying FAR/AS regulations
- Requires in-depth knowledge, expertise, and experience; proficiency in Excel and Word and extensive knowledge of Deltek Costpoint billing 8.1 and cost modules; Understand FAR, CAS and GAAP.
- Interprets internal or external business issues and recommends solutions / best practices; continually seeks updated knowledge on issues impacting current programs/projects/processes.
- Experience submitting invoices on customer systems such as WAWF.
- Routinely interface with other senior-level leaders and teammates; always demonstrating outstanding poise and strong cross-functional teamwork.
- Is accommodating to both positive and negative customer feedback.
- As available/needed: represent MTSI at conferences, workshops, or symposiums by chairing a session, participating in a panel discussion, or presenting a paper. Travel Requirements:
- This position offers the opportunity to work remotely, however, some travel may be required to attend quarterly meetings with teams. Physical Requirements:
- Frequent sitting for long periods using computer keyboard, zoom conferencing, Microsoft teams, telephone etc.
- Keyboarding: Entering text or data into a computer or other machine by means of a traditional keyboard (traditional keyboard refers to a panel of keys used as the primary input device on a computer, typographic machine or 10-key numeric keypad). Please note: Candidate must be able to successfully pass a credit check and criminal background investigation. The pay range for this position is $80,000 to $120,000/year; however, base pay offered may vary depending on established government contract ranges, job-related knowledge, skills, and experience, and other factors. MTSI also offers a full range of medical, financial, and other benefits, dependent on the position offered. Base pay information is based on market location. Applications will be accepted on an ongoing basis. This posting will be renewed periodically until the position is filled. #LI-RC2
Description copied from Modern Technology Solutions's careers page. Read the full posting before you apply.
More jobs at Modern Technology Solutions
Operations Officer
Modern Technology Solutions· Huntsville, AL, United StatesSenior Quality Manager
Modern Technology Solutions· Colorado Springs, CO, United States· $175k – $225kMarketing Onboarding Specialist
Modern Technology Solutions· Huntsville, AL, United StatesMarketplace Contracting Specialist
Modern Technology Solutions· Huntsville, AL, United StatesSenior Missile S&T Programs and Plans Systems Engineer
Modern Technology Solutions· Huntsville, AL, United States
More jobs in Alexandria
Sales Representative - Facility Services
Cintas· Alexandria, VA, US· $60k – $150kAdvanced Practice Providers
Panoramic Health· Alexandria, VA, United States· $120k – $145kCustomer Service Representative - Store (PT)
Dollarexpress___candidateportal___en-us· Dollar Express 8724 Richmond Hwy, Alexandria, Virginia, United States of AmericaSenior Project Manager
Baker Construction· Alexandria, VA, United StatesMake Ready Technician I
JRK Property Holdings· Alexandria, VA, United States· $54k – $58k
