Senior Subcontracts Administrator IRES

Posted 2 Days Ago
Be an Early Applicant
5 Locations
In-Office
125K-140K Annually
Senior level
Security • Cybersecurity
The Role
Manages complex government subcontracts through acquisition planning, solicitation, negotiation, award, administration, modification, and closeout. Performs market research, cost and price analysis, supplier performance management, risk assessment, and compliance activities under FAR/DFARS requirements. Maintains audit-ready procurement files, resolves contractual issues, supports corrective actions, and advises program teams on subcontracting strategy and risk. Requires active DoD Secret clearance and extensive government subcontracting experience.
Summary Generated by Built In

Position Title: Sr. Subcontracts Administrator

Location: Schriever Space Force Base, Colorado Springs, CO; Redstone Arsenal, Huntsville, AL; Fort Belvoir; VA, Dahlgren, VA; Vandenberg, CA

Relocation Assistance: None available at this time

Remote/Telework: Yes - Available for this position

Clearance Type: DoW Secret

Shift: Day shift

Travel Required: Up to 10% of the time


This role specifically requires Subcontract Administrator experience. Candidates whose backgrounds consist only of COR or contract administration duties do not meet the minimum qualifications for this position.


Description of Duties:

Amentum is seeking an experienced Senior Subcontracts Administrator to support the Missile Defense Agency (MDA) Integrated Research and Development for Enterprise Solutions (IRES) contract. This position independently manages a portfolio of complex, high-value subcontracts from acquisition planning through closeout and serves as the principal subcontract business advisor to program and task order teams. The role is accountable for compliant execution, sound business decisions, subcontractor performance, and complete, audit-ready procurement files in accordance with applicable FAR/DFARS requirements, prime contract flowdowns, company policy, delegated authority, and approved acquisition strategies.


The candidate will be responsible for the following:


Subcontract Management:

  • Lead the full subcontract lifecycle. Plan, compete, negotiate, award, administer, modify, and close complex subcontracts with minimal supervision while maintaining clear ownership of schedule, risk, approvals, and file documentation.
  • Develop the acquisition strategy. 
  • Translate technical requirements into executable packages. 
  • Conduct and document market research. Identify capable sources, assess competition, validate supplier eligibility and responsibility, and support make-or-buy, commerciality, and single- or sole-source determinations when applicable.
  • Manage solicitations and source selection. 

Proposal Analysis, Negotiation, and Award:

  • Perform cost and price analysis. 
  • Lead negotiations within delegated authority. 
  • Document the business decision. 
  • Establish the appropriate subcontracting arrangement. 
  • Ensure award readiness. 

Post-Award Administration and Supplier Performance:

  • Maintain contractual control. 
  • Administer changes. .
  • Monitor subcontractor performance. 
  • Resolve performance and payment issues. 
  • Maintain effective supplier relationships. 
  • Complete formal closeout. 

Compliance, Records, and Business Leadership:

  • Interpret and apply requirements. 
  • Maintain CPSR-ready and audit-ready files. .
  • Protect sensitive information. 
  • Support reviews and corrective actions. 
  • Improve execution. 

The successful candidate will:

  • Exercise sound independent judgment and know when a matter requires management, legal, compliance, or customer escalation.
  • Manage multiple high-priority actions and short deadlines without sacrificing compliance, documentation quality, or business judgment.
  • Communicate contractual risk clearly and convert technical or program requirements into specific, enforceable subcontract language.
  • Be organized, responsive, detail-oriented, and effective in a collaborative, matrixed program environment.
  • Understand how subcontract terms allocate cost, schedule, technical, and performance risk and applies that understanding during negotiations.

Resumes, in month and year format, must be submitted with application in order to be considered for the position.  The selected candidate may be assigned as an employee for one of our teammate companies.


Basic Requirements:

  • Must have an active DoD Secret Security Clearance
  • Must have 2 or more years of experience performing in a senior level subcontracts administration role or comparable position. 
  • Must have 5, or more, years of directly related experience in Government subcontracting
  • Must have 10, or more, years of general (full-time) work experience
    • May be reduced with completion of advanced education
  • Must have demonstrated recent subcontract experience working with the FAR/DFARS
  • Working knowledge of multiple contract types including IDIQ, CPIF, T&M, firm-fixed price, and demonstrated ability to execute and interpret federal regulations within contracts
  • Must be proficient in Microsoft Word, PowerPoint, Excel, and SharePoint
  • Must have demonstrated recent subcontract experience working with the FAR/DFARS
  • Working knowledge of multiple contract types including IDIQ, CPIF, T&M, firm-fixed price, and demonstrated ability to execute and interpret federal regulations within contracts
  • Must be proficient in Microsoft Word, PowerPoint, Excel, and SharePoint
  • Must have an active DoD Secret Security Clearance

Desired Requirements:

  • Have experience developing subcontract requirements with little to no prior acquisition history
  • Have demonstrated experience developing process improvements and new processes for subcontract management portfolios

This position is expected to pay $125,000 – $140,000 annually; depending on experience, education, and any certifications that are directly related to the position.


       

Compensation Details:

$125,000 - $140,000

       

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.


Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

  • Health, dental, and vision insurance

  • Paid time off and holidays

  • Retirement benefits (including 401(k) matching)

  • Educational reimbursement

  • Parental leave

  • Employee stock purchase plan

  • Tax-saving options

  • Disability and life insurance

  • Pet insurance


Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

       

Original Posting:

11/09/2026 - 11/12/2026

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

       

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed,  marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.

Skills Required

  • Active DoD Secret security clearance
  • At least 2 years of senior-level subcontracts administration experience or comparable experience
  • At least 5 years of directly related government subcontracting experience
  • At least 10 years of general full-time work experience, potentially reduced with advanced education
  • Recent subcontract experience working with FAR and DFARS
  • Working knowledge of IDIQ, CPIF, time and materials, and firm-fixed-price contract types
  • Ability to execute and interpret federal regulations within contracts
  • Proficiency in Microsoft Word, PowerPoint, Excel, and SharePoint
  • Experience developing subcontract requirements with little or no prior acquisition history
  • Experience developing process improvements and new processes for subcontract management portfolios
  • Resume submitted in month and year format

Amentum Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Amentum and has not been reviewed or approved by Amentum.

  • Healthcare Strength — Healthcare offerings are described as comprehensive, with medical, dental, and vision plans and multiple PPO/HSA options. Mental health support via an employee assistance program and other wellness resources is also included in the benefits mix.
  • Retirement Support — Retirement support is positioned as a meaningful part of total rewards through a 401(k) plan with employer matching. Profit-sharing contributions and immediate or near-term vesting in some cases further strengthen the retirement value proposition.
  • Leave & Time Off Breadth — Time-off benefits are presented as solid for the sector, including tiered PTO accrual by tenure and a set of paid holidays. Role-dependent flexible or remote work options and leave programs add to perceived work-life support.

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The Company
HQ: Chantilly, VA
18,261 Employees

What We Do

Amentum is a premier global technical and engineering services partner supporting critical programs of national significance across defense, security, intelligence, energy, and environment. We draw from a century-old heritage of operational excellence, mission focus, and successful execution underpinned by a strong culture of safety and ethics. Headquartered in Germantown, Md., we employ more than 20,000 people in 48 states and 28 foreign countries and territories. Visit us at amentum.com to explore how we deliver excellence for our customers’ most vital missions.

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