Penetration Tester 3 – TS/SCI w/Poly

PAE Government Services Inc.; United States; On-site; USD 175,000 - 212,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

Paid time off and holidays

401(k) matching

Job summary

Amentum seeks a Penetration Tester 3 to join our Cyber, Security, & Intel team on a Prime contract. You will perform network and application testing, applying RMF knowledge to evaluate security controls and protect national missions.

The role requires DoD 8570 IAT III certifications or equivalent, 8+ years of hands-on experience, and TS/SCI Poly clearance. This is a safety‑driven, diverse workplace with competitive benefits.

Qualifications

• Bachelor’s degree in Computer Science, IT Engineering or related field.
• Eight+ years of Penetration Testing, network and application testing.
• DoD 8570 IAT III compliance – CASP+CE, CCNP Security, CISA, GCED, GCIH, CCSP, CISSP.
• In lieu of a degree, twelve years total experience.

Responsibilities

• Serve as a Subject Matter Expert providing testing expertise of the Risk Management Framework.
• Direct and/or participate in the testing phase of security controls assessments using knowledge of networks, OS, architectures, equipment, services, and standards.
• Perform vulnerability and penetration testing using a wide variety of tools.
• Research and evaluate emerging technologies relevant to information systems security; interpret federal security regulations.
• Perform both network and application-level testing using established testing protocols and methods.

Education

Bachelor’s degree in Computer Science, Information Technology Engineering, or related field

DoD 8570 compliance with IAT III – CASP+CE (SecurityX), CCNP Security, CISA, GCED, GCIH, CCSP, CISSP (or Associate)

Job description

Purpose and Impact

Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. We are seeking a Penetration Tester 3 to join our team of passionate individuals on our Prime contract. In this role you will support challenging, mission-critical projects that make a direct impact on the nation’s security and intelligence mission.

Essential Responsibilities

• Serve as a Subject Matter Expert providing testing expertise of the Risk Management Framework.
• Direct and/or participate in the testing phase of security controls assessments using specialized knowledge of network protocols, operating systems, architectures, equipment, services, and standards.
• Perform vulnerability and penetration testing using a wide variety of tools.
• Research and evaluate emerging technologies relevant to information systems security; interpret agency specific and federal security regulations.
• Perform both network and application-level testing using established testing protocols and methods.

Clearance Required

TS/SCI Poly

Minimum Education

A Bachelor’s degree in Computer Science, Information Technology Engineering, or related field. In lieu of a Bachelor's degree, an additional four (4) years of experience for a total of twelve (12) years.

Minimum Years of Experience

Eight (8) years of related work experience as a Penetration Tester performing both network and application-level testing using established test protocols and methods. In lieu of a Bachelor’s degree, four (4) additional years of Penetration Testing experience may be substituted for a total of twelve (12) years.

Required Certifications

DoD 8570 compliance with IAT III is required – CASP+CE (now SecurityX), CCNP Security, CISA, GCED, GCIH, CCSP, CISSP (or Associate) #javelin

Other Responsibilities

• Safety – Amentum enforces a safety culture whereby all employees have the responsibility for continuously developing and maintaining a safe work environment. As appropriate, each employee is responsible for completing all training requirements and fulfilling all self‑aid/buddy aid responsibilities, participating in emergency response tasks and serving on safety committees and teams.
• Quality – Quality is the foundation for the management of our business and the keystone to our goal of customer satisfaction. It is our policy to consistently provide services that meet customer expectations. Accordingly, each employee must conform to the Amentum Quality Policy and carry out job activities in compliance with applicable Amentum Quality System documents and customer contracts. Each employee must read and understand his/her Quality Management and Customer Satisfaction responsibilities.
• Procedure Compliance – Each employee must read, understand and implement the general and specific operational, safety, quality and environmental requirements of all plans, procedures and policies pertaining to his/her job.

Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status.

Employment Policies

This position is not designated as a safety sensitive position. As part of our commitment to maintaining a safe and compliant work environment, Amentum is a drug‑free workplace and requires all personnel to comply with company drug and alcohol policies as a condition of employment. Employment is contingent upon successful completion of the drug screening process. Please note that this may include pre‑hire screening for marijuana, as well as other federally controlled substances due to Amentum’s role as a federal contractor and trusted partner to the US Government.

Compensation Details

$175,000 — $212,000 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.

Posting Information

Original Posting: 10/20/2026 - Until Filled 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.

Equal Employment Opportunity

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.

Accommodation

If you need a reasonable accommodation for any part of the employment process, please complete our Accommodation Request. Requests for accommodation will be considered on a case‑by‑case basis.