Personnel Security Specialist

Amentum; Fairfax (VA); Remote; USD 90,922,000 - 99,187,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

Paid time off and holidays

401(k) matching

Job summary

Amentum is seeking a Personnel Security Specialist to support the PERSEC Team in processing and coordinating government security clearances. The role involves initiating investigations, completing forms, fingerprint processing, and maintaining clearance records within DISS/NBIS systems.

Applicants should have a high school diploma or GED with relevant security experience and possess a U.S. Government Secret clearance.

Qualifications

• High school diploma or GED with 2+ years of security experience.
• Active U.S. Government Secret clearance required.

Responsibilities

• Initiate security background investigations and processing for various clearance types.
• Process and submit SF4311, CSR, and SAP/SI packages.
• Coordinate with FSO/CSO and OPM on investigations.
• Conduct quality control on investigation packages for completeness.

Skills

Background investigations

DISS NBIS familiarity

SF86 processing

MS Office & Adobe Pro

Independent worker with team

Communication skills

Security documentation handling

Discretion with sensitive data

Education

High School Degree or GED

Tools

DISS

NBIS

Job description

Position Title: Personnel Security Specialist

Relocation Assistance: N/A

Remote/Telework: Yes - Available for this position

Clearance Type: U.S. Government Security Clearance - Secret

Shift: Day shift

Hourly Pay Range: 33.00 - 34.57

We have an exciting opportunity for a Personnel Security Specialist within our Personnel Security (PERSEC) Team. The PERSEC teams conduct personnel security processing actions enterprise wide. The PERSEC teams work in concert with Contract Security Officers (CSOs) and Facility Security Officers (FSOs), who together work with our government clients, employees and candidates to obtain or maintain government clearances, classified space and system access as well as provide other essential security services for the Amentum business areas. As a PERSEC Specialist, you will work independently and interdependently within the PERSEC Teams to initiate clearance actions, periodic reinvestigations, crossovers; conducting clearance checks, review and process Security Pre-Screen checks, Visit Authorization Requests, CAC’s, fingerprint processing, answering questions received from applicants, employees, customers, and other duties as assigned.

Roles and Responsibilities

• Initiate security background investigations and processing for different security clearance types/levels (T3, T3R; T5, T5Rs) utilizing DISS, NBIS, and using the Fillable SF86 version for certain Agencies
• Initiate processing actions for positions requiring Suitability requirements (National Agency Check (NAC), Tier 1; Background Investigation (BI), Moderate Risk Background Investigation (MBI), High Risk Background Investigation, Moderate Risk Positions of Trust (MRPTs), Position of Public Trust. Process Common Access Cards, Homeland Security Presidential Directive-12 (HSPD-12)
• Work closely with FSO's/CSO's and other Security Representatives
• Coordinate with OPM regarding personnel investigations for completion of clearance processing
• Conduct quality control review of investigation packages (Questionnaire for National Security Positions SF86, 85, 85P's, etc.) to ensure they are complete and accurate prior to submittal
• Assist employees/candidates with security paperwork
• Process and submit SF4311 for clearance actions
• Submit CSR's, request reciprocity within DISS
• Initiate, process and submit Sensitive Compartmented Information (SCI) Packages and Special Access Program (SAP) Packages
• Process fingerprints through Secure Web Fingerprint Transmission (SWFT) as applicable and or our third party vendor
• Track and Maintain clearances in DISS and NBIS (until transition is complete)
• Create and maintain records in the Amentum Security Database of Record (Gateway)
• Conduct clearance checks utilizing DISS
• Review Security Pre-Screen Forms as applicable
• Familiarity with PART 147 - Adjudicative Guidelines for Determining Eligibility for Access to Classified Information under TITLE 32 - National Defense. Subtitle A - Department of Defense
• Process outgoing visit requests and certifications
• Other duties as assigned

Minimum Requirements

• Active U.S. Government Secret Security Clearance. Note: US Citizenship is a requirement to maintain a Secret Security Clearance.
• Familiarity in the use of DISS and NBIS
• High School Degree or GED and 2+ years of Personnel Security or Security experience

Required Skills

• Knowledge of NISPOM / 32 CFR Part 117
• Experience processing SF86's (via e-APP and the fillable versions 2008 and 2016)
• Proficiency with software applications such as MS Office, Outlook and Adobe Pro
• Excellent interpersonal skills be a self-starter and possess the ability to work independently in a fast-paced team environment with a 'no fail' mentality
• Strong commitment to excellence and continuous improvement
• Ability to effectively manage individual workflow
• Communicate effectively both orally and in writingAbility to interact positively with all individuals either in-person, over the phone or via teleconferencing applications.
• Ability to use discretion when handling sensitive personal information

Compensation Details

$33.00 - $34.57 Hourly

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

10/07/2026 - 10/12/2026

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.