Full Time Designated Defensive Marksman Jobs (NOW HIRING)

Position Title: Cyber Defense Fielding and Integration (F&I) Lead

Location: Schriever Space Force Base, Colorado Springs, CO or Redstone Arsenal, Huntsville, AL

Relocation Assistance: None available at this time

Remote/Telework: NO - Not available for this position

Clearance Type: DoW Secret

Shift: Day shift

Travel Required: Up to 10% of the time

Description of Duties:

We are seeking a Cyber Defense Fielding and Integration (F&I) Lead to direct a dedicated technical team in facilitating the onboarding and integration of existing and future systems into our designated Cyber Defense platform. The Cyber Defense Fielding and Integration (F&I) Lead supports the Missile Defense Agency (MDA) on the Integrated Research and Development for Enterprise Solutions (IRES) contract. In this critical role, you will ensure that all targeted systems successfully establish connectivity and achieve continuous monitoring compliance with the designated Cybersecurity Service Provider (CSSP). You will bridge the gap between technical system owners and cyber defense operations, ensuring seamless integrations with minimal operational disruption.

Key Responsibilities

System Discovery & Readiness

• Lead comprehensive technical evaluations of targeted systems in close coordination with system owners and network engineers.
• Assess current system architectures, logging capabilities, and overall readiness for cybersecurity integration.
• Document and analyze each system's technical baseline, cyber defense platform compatibility, and identify network or configuration prerequisites (e.g., firewall modifications, agent deployments) that must be resolved prior to onboarding.

Integration Planning & Resourcing

• Develop standardized, system-specific onboarding plans that clearly outline the technical methodology for integration.
• Quantify the required Level of Effort (LOE) and create accurate resource estimates for each system integration.
• Establish and manage approved schedules to ensure predictable onboarding phases, clear technical requirements, and minimal disruption to ongoing operations.

CSSP Validation & Continuous Monitoring Compliance

• Ensure the CSSP achieves complete, actionable visibility into newly onboarded systems to satisfy cybersecurity monitoring mandates.
• Verify that the cyber defense platform successfully receives, properly parses, and accurately categorizes all ingested data.
• Validate that data flows meet CSSP continuous monitoring requirements to enable effective cyber threat detection and incident response capabilities.

The successful candidate will:

• Be able to coordinate technical requirements across distinct teams (e.g., system owners, network engineers, and security operations).

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 6, or more, years of general (full-time) work experience
  • May be reduced with completion of advanced education
• Must have 4, or more, years of directly related experience
• Must have 1, or more, years of experience working in an IT management or leadership role
• Must have a strong understanding of network architecture, enterprise logging capabilities, SIEM platforms, and cyber defense toolsets.
• Must have proven experience working with or within a Cybersecurity Service Provider (CSSP) framework, specifically regarding continuous monitoring mandates.
• Must have the demonstrated ability to develop integration plans, quantify Level of Effort (LOE), and manage technical deployment schedules.
• Must have a current IAT Level II Certification (Security+ CE) or be able to obtain within 3 months of hire
• Must be able to maintain a restricted badge and work on site 4+ days per week
• Must have, or obtain, an active DoW Secret Security Clearance

Desired Requirements:

• Have a current IAT Level III Certification (SecurityX CE, CISA, CISSP, etc.)
• Have experience in Impact Level 5 (IL5) or higher secure environments.

This position will be posted for a minimum of 3 days. If a candidate has not been selected at that time, it will continue to be posted until a suitable candidate is selected or the position is closed.

Compensation Details:

$150,000 - $170,000

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:

08/03/2026 - 08/11/2026

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 atLabor Laws Posters.