Mid Cyber Defense Analyst MDX – SSFB/HSV

Amentum; Huntsville (AL); On-site; USD 119,000 - 130,000; Full time

Benefits offered by this job

Health insurance

401(k) matching

Paid time off

Educational reimbursement

Parental leave

Employee stock purchase plan

Disability and life insurance

Pet insurance

Job summary

Amentum is seeking a Mid Cyber Defense Analyst to support DoD network defense at Schriever AFB or Redstone Arsenal. The role requires DoW Secret clearance, 24x7 operations, and up to 10% travel.

You will lead incident investigations, develop CSIRT content, and mentor junior analysts in a fast-paced environment. Responsibilities include DCO duties, completeness in documentation, and collaboration with CSSP-CERT to maintain secure configurations.

Qualifications

• Must have 4 years of directly related experience in information security, physical security, or cybersecurity.
• Must have 1+ years in a leadership or management role.
• Active DoW Secret clearance; ability to obtain DoW Top Secret clearance.

Responsibilities

• Perform Defensive Cyber Operations (DCO) duties per ESM.
• Lead incident investigations from start to finish and document in chain of custody.
• Coordinate with CSSP-CERT to update configurations, rules, and signatures.
• Develop SIEM content/signatures to detect attack patterns.

Skills

Incident response

DCO experience

Training/mentoring

Documentation

Cybersecurity

Education

Bachelor's degree in Cybersecurity/CS

Tools

SIEM

Firewalls

Nessus/ACAS

Windows/Linux

Job description

Position Title: Mid Cyber Defense Analyst

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: Rotating Shifts

Travel Required: Up to 10% of the time

Description of Duties

• Perform Defensive Cyber Operations (DCO)/Cyber Security Service Provider (CSSP) duties outlined in Evaluator Scoring Metrics (ESM).

• Perform cybersecurity duties on customer networks (proactively and reactively) to improve enterprise-wide security posture.

• Perform preliminary analysis, identification, and response actions to detect, characterize, and respond to cyber incidents IAW CJCSM 6510.01B.

• Lead event/incident investigations from start to conclusion, to include gathering data, analysis, and reporting.

• Properly document all steps in the incident response process while taking care to preserve and protect incident artifacts, evidence, and chain of custody.

• Analyze correlated asset, threat, and vulnerability data against known adversary exploits and techniques to determine impact and improve network defensive posture.

• Support a Cyber Defense Analyst and Cyber Defense Incident Responder training plan by instructing, evaluating, and mentoring Junior Cyber Defense Analyst and Cyber Defense Incident Responders.

• Support the development, establishment, review and update of DCO procedures, processes, manuals, and other documentation.

• Leverage actionable Cyber Threat Intelligence data to search for indicators of compromise and develop SIEM content/signatures to detect known attack patterns and make recommendations for improvements.

• Coordinate with CSSP-CERT subscribers to develop current configurations, rules, and signatures for cyber security related toolsets.

• Coordinate with CSSP-CERT subscribers to notify, investigate, and remediate discrepancies in security logging and CSSP-CERT alignment.

• Provide standardized and targeted training in support of CSSP-CERT subscriber cyber defense and incident response programs.

• Review data of ongoing intrusions or cybersecurity incidents and report, analyze, and document/report the findings in accordance with CJCSM 6510.01B guidelines.

• Provide support to internal and external Insider threat and law enforcement / counterintelligence (LE/CI) agencies during cyber incidents / investigations.

The successful candidate will:

• Have experience with most MS Office applications (Word, Excel, PowerPoint, and Visio).

• Be able to multi-task and prioritize various projects and assignments in a dynamic work environment in order to meet scheduled/unscheduled customer requests.

• Be willing to travel 25% of the time.

• Be willing to work rotating shifts in a 24x7x365 operational environment and respond quickly to emergencies as needed.

Basic Requirements

• Must have 2 , or more, years of general (full-time) work experience

  • May be reduced with completion of advanced education

• Must have 4 years of directly related experience in information security, physical security, or cybersecurity, or a combination thereof

• Must have 1 , or more, years of experience working in a management or leadership role

• Must possess one of the following certifications:

  • FITSP-O | Federal IT Security Institute

  • CEH(P) | EC-Council

  • GMON | SANS

  • GRID | SANS

  • GCED | SANS

  • GDSA | SANS

  • GSEC | SANS

  • PenTest+ | CompTIA

  • CySA+ | CompTIA

  • Cloud+ | CompTIA

• Must have an active DoW Secret Security Clearance

• Must be able to obtain/maintain an active DoW Top Secret Security Clearance

Desired Requirements

• Have an Bachelor’s degree, or higher, in Cybersecurity, Computer Science or related field

• Have experience with security analysis and solutions in a WAN/LAN environment to include Routers, Switches, Network Devices, and Operating Systems (e.g., Windows, and Linux)

• Have experience with other Security Operations Centers (SOC)/DCO tools/applications, such as Firewalls, Intrusion Detection Systems / Intrusion Prevention Systems, Network Security Manager, Forward Proxy, Spam Firewall, etc.

• Have experience analyzing security compliance scans performed across a WAN (ACAS/Nessus preferred)

• Have experience analyzing network and host-based threats (ESS preferred)

• Be able to mentor and train personnel in an evolving, high-paced environment

• Be familiar with DoD Security Operations Centers (SOC)

• Be familiar with DCO/Cybersecurity Service Provider (CSSP)-guiding security policies and procedures

• Have an active DoD Top Secret clearance

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

$119,000 — $130,000

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

• 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

10/27/2026 – 11/05/2026

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 (https://postings.govdocs.com/#/vxSkbztPuAwwxfs) .