Jr Cyber Defense Analyst / Incident Responder IRES - HSV

Position Title: Jr Cyber Defense Analyst / Incident Responder

Location: 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 shift

Travel Required: Up to 10% of the time

Description of Duties:

The Jr Cyber Defense Analyst / Incident Responder supports the Missile Defense Agency (MDA) on the Integrated Research and Development for Enterprise Solutions (IRES) contract. The candidate will:

• 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.
• Perform 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 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 make recommendations for improvements.
• 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.

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, months of directly related experience in information security, physical security, or cybersecurity, or a combination thereof
• Must have, or obtain within 6 months of hire, one of the following certifications:
  • CC | (ISC)2
  • CEH | EC Council
  • GFACT | GIAC
  • GISF | GIAC
  • CySA+
• Must have an active DoW Secret Security Clearance

Desired Requirements:

• Have an Associate'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 obtain a DoD Top Secret clearance
• Be familiar with Security Operations Centers (SOC)/DoD
• Be familiar with DCO/Cybersecurity Service Provider (CSSP)-guiding security policies and procedures
• Have an active DoW 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:

$101,000 – $115,000

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:

08/26/2026 - 08/30/2026

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.