Full-Time

Personnel Security Specialist – Senior

Posted on 12/13/2025

Amentum

Amentum

10,001+ employees

Global engineering and mission-support services contractor

No salary listed

No H1B Sponsorship

Huntsville, AL, USA

In Person

US Top Secret Clearance Required

Category
Legal & Compliance (1)
Required Skills
Data Analysis
Requirements
  • Must have an Active Top Secret US Government Clearance. Note: US Citizenship is required to maintain a Top Secret Clearance.
  • Bachelor’s degree
  • 10 years of experience in federal law enforcement or 15 years of experience in the personnel security investigative or investigative analyst field. Alternative: Associate’s degree with 12 years of experience in federal law enforcement or 17 years of experience in the personnel security investigative or investigative analyst field).
  • Technical training/certification as an investigator and/or adjudicator is required.
  • Prior security management experience preferred.
Responsibilities
  • Independently develops various types of manuals, forms, instructions, and the like, to facilitate operation of the FBI Security Program. Participates in special projects such as planning the implementation of new or revised programs.
  • Conducts exhaustive and extensive checks in accordance with the FISs, Federal guidelines, policies and procedures. Demonstrates innovative and imaginative approaches to problem solving that adds to the quality and quantity of relevant data recovered in assigned cases.
  • Provides direct support and service to the administration of the FBI Security Program by participating in the direction, from inception to completion, of highly sensitive and complex security assessment investigations conducted by the FBI Field Offices and rendering appropriate adjudication recommendations regarding the same. Acts as the technical expert in one or more security programs, serve as an assistant to a program manager and provide expert advice and assistance in formulating and implementing policies and procedures.
  • Requests, receives, scrutinizes and analyzes FBI Investigative files and related material to determine, isolate, develop and extract all possible identifying or linking information, matching records, questionable/overlapping elements, and viable avenues of investigative pursuit which could have a bearing on individual's ability to hold a security clearance.
  • Analyzes material to develop and detect misrepresentations of facts, any criminal, immoral, or suspicious conduct, any signs of mentally disabling illness, indications of any type of association with hostile intelligence individuals, organizations, or persons of known or suspected questionable character, or fragments of information which furnish reason to sustain suspicion that the subject could be a security risk and/or significant target for coercion.
  • Conducts critical analysis of incoming material/correspondence outlining possible serious and/or very sensitive security concerns relating to the most complex security assessment issues for the purpose of determining merit for granting, continuing, and/or revoking security clearances and access authorizations.
  • Provides on–the-job training, instruction, guidance and advice to lower-level specialists; assists in the resolution of issues and other problems being encountered during processing of cases. Assists UCs, supervisors, and/or the GPM to provide continuing direction and assistance to other specialists for case(s) particularly sensitive and/or complex in nature; such cases may be reassigned to incumbent to resolve and complete.
  • Reviews cases and routine correspondence to the FOs and/or outside agencies prepared by specialists for transmittal authorization by Government lead.
  • Prepares in-depth summaries of data obtained and determined to be pertinent or relevant to a case at hand and compose necessary correspondence to appropriate FO(s) for initiation of an investigation. Provides detailed outlines of background of individual case and information developed from extensive initial research and of the subsequent analysis of same. Defines security vulnerabilities, set forth specific recommendations for the initiation of investigations, recommend leads which are to be addressed and followed, and advise of any restricting regulations, instructions, or information which may hamper the investigation.
  • Coordinates with FBI Divisions on foreign nexus/concerns to exploit intelligence for the purpose of making adjudicative determination recommendations.
  • Provides an in-depth, high-risk analysis of high risk investigations so that the Government lead can make a security and suitability determination.
  • Evaluates reports of investigations, personnel files, and other records to recommend suitability/security determinations.
  • Provides a recommendation regarding the adequacy and completeness of the investigation and of other means by which data were collected, and evaluate the authenticity, veracity, and pertinence of the data to the case, and request additional information as required.
  • Recommends whether a security clearance should be granted, denied, revoked, or suspended, as appropriate.
  • Recommends and then coordinates the execution of polygraph examinations and/or interviews to be conducted based upon acute analysis of all data developed. Composes appropriate communications to pertinent FBI HQ Divisions and FOs to initiate same, providing detailed justification as to recommendations that same be carried out and setting forth any specific instructions which should be followed in regard to same.
  • Correlates and assimilates all data obtained and developed, prepares a formal written analysis of the security concerns, vulnerabilities, risks, and their resolutions.
  • Coordinates and correlates investigative activity, information gathering, and matters of mutual interest between FOs, Legal Attaches, other Government agencies, and private industry.
  • Advises of the need for follow-on actions and/or participates in and/or conducts security briefings as individual situations require.
  • Receives and follows guidance from Government lead who assigns cases and projects. Processes assignments independently for all aspects of the investigations and preparation of finished reports.
  • Analyzes the results of investigations to include results of interviews and polygraph examinations to ensure that all issues have been resolved, that gaps in information have adequately covered, and that areas of concern have been completely addressed in order to efficiently and effectively support a determination of an individual's eligibility for access to national security information as defined in the SEAD 4 or access to FBI spaces.
  • Ensure cases are handled in compliance with FBI policies and legal requirements. Determines the adequacy of reporting information to develop and set forth leads and provides guidance to the field during course of investigations.
  • Adheres to DOJ Orders and FBI regulations and instructions affecting the conduction of background investigations.
Desired Qualifications
  • Advanced degree in any field of study.
  • Knowledge of DOJ and FBI regulations regarding the personnel security process.
  • Experience conducting interviews and security briefings, discussing analysis and opinion in a concise, logical and objective manner, and preparing written communications setting forth analyses and recommendations.
  • Previous experience in security leadership role.
  • Strong understanding of security disciplines.
  • Demonstrated understanding of the following security – related / investigative guidelines: Federal Investigative Standards (FISs), Security Executive Agent Directives (SEADs), Executive Orders (EOs), U.S. Code of Federal Regulations (US CFR).

Amentum provides engineering, technology, and critical mission support for government and commercial clients in defense, space, intelligence, and environmental sectors. It works by combining services such as aviation and logistics, engineering, systems integration, cyber and intelligence support, and environmental solutions across a global workforce. The company grew by acquiring DynCorp International and PAE, then merged with Jacobs’ Critical Mission Solutions and Cyber & Intelligence units to become a large, publicly traded contractor (AMTM) on the NYSE. Compared with competitors, Amentum leverages a broad scale, diversified capabilities, and long-standing relationships with national security and space programs to handle complex, multi-domain missions. Its goal is to solve major national and global challenges by delivering integrated engineering, technology, and mission-support solutions at scale for governments and allied nations.

Company Size

10,001+

Company Stage

Post IPO Equity

Headquarters

Germantown, Maryland

Founded

2020

Simplify Jobs

Simplify's Take

What believers are saying

  • $48B record backlog grows 7% YoY with $4B Q2 2026 bookings across sectors.
  • Digital Solutions segment surges from AI data centers and cybersecurity demand.
  • Jacobs merger in 2024 expands cyber intelligence capabilities for recurring revenue.

What critics are saying

  • Trump FY2027 budget cuts 15% from DoD logistics, slashing 40% of Amentum revenue.
  • Lockheed Martin erodes defense share post-$360M Rapid Solutions acquisition June 2025.
  • Jacobs integration overruns cause $500M costs and Q1 2026 profit miss of 15.4%.

What makes Amentum unique

  • Amentum leads in contested logistics via Hawaii Center launched March 2026.
  • Oak Ridge Nuclear Center positions Amentum for global nuclear projects since 2025.
  • AI-driven predictive maintenance differentiates aviation services in $425M CAL FIRE contract.

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Benefits

Hybrid Work Options

Company News

Wash100
Apr 9th, 2026
Amentum CEO John Heller receives 10th Wash100 Award.

Amentum CEO John Heller receives 10th Wash100 Award. John Heller, CEO of Amentum, has accepted the 2026 Wash100 Award, marking his 10th win and fourth consecutive selection to Executive Mosaic's annual list of the most influential leaders in government contracting. The award was presented by Jim Garrettson, CEO of Executive Mosaic and founder of the Wash100 Award, during a visit to Amentum's office. Why did John Heller win the 2026 Wash100 Award? Executive Mosaic recognized Heller for driving Amentum's expansion across nuclear energy, digital infrastructure and space systems while guiding the company through its first full year as a public entity. His leadership secured major 2025 contracts supporting national security and global operations, including: * Counter-threat finance: A $247.6 million contract award. * MQ-9 Reaper maintenance: A $995 million Air Force award for fleet support. * Digital infrastructure: A $120 million Z-series chipset processor capacity services contract from the Defense Information Systems Agency. This momentum continued into 2026 with expanded work under the Navy's WEXMAC TITUS program and a $656.4 million base operations support contract at Naval Support Facility Diego Garcia. Heller has been instrumental in expanding Amentum's nuclear capabilities, overseeing a major 2025 strategic push across U.S. and European markets. A key milestone in this expansion was the establishment of the Oak Ridge Nuclear Center of Excellence, which provides the engineering and operational foundation for the company's global power projects. Who is John Heller? As CEO and a board member of Amentum, John Heller leads a global workforce of approximately 53,000 employees across 80 countries. A veteran executive in the government services sector, he previously served as CEO and president of PAE, where he guided the company through its public listing. His career includes leadership roles at Engility, Harris and Netco, complemented by early experience as a U.S. Army logistics officer and a management consultant at Deloitte. Heller is a graduate of the U.S. Military Academy at West Point and holds a master's degree in business administration from the University of Pittsburgh. What is the Wash100 Award? The Wash100 Award honors executives and officials whose leadership, innovation and strategic direction shape federal priorities and deliver measurable mission impact. Widely regarded as one of the GovCon sector's most prestigious recognitions, the award highlights individuals driving progress across national security and technology modernization. Heller's 10th Wash100 recognition underscores his long-standing influence and his role in positioning Amentum for sustained growth across energy, defense and digital infrastructure. Executive Mosaic congratulates John Heller on his 2026 Wash100 Award. Share the Post:

Daily Advance
Apr 7th, 2026
Amentum secures $425 million contract to support California's aerial firefighting operations.

Amentum secures $425 million contract to support California's aerial firefighting operations. * Business Wire * 1 hr ago CHANTILLY, Va.-(BUSINESS WIRE)-Apr 7, 2026- Amentum (NYSE: AMTM) has been awarded a $425 million contract by the California Department of Forestry and Fire Protection (CAL FIRE) to deliver aerial firefighting support to the state. The initial three-year contract includes two option years. California Department of Forestry and Fire Protection (CAL FIRE) The partnership underscores the company's commitment to supporting California in its battle against wildfires. "Amentum is uniquely positioned to manage the training, scheduling and mobilization of pilots and mechanics to deliver aviation solutions that protect California's environment and critical infrastructure," said Dr. Karl Spinnenweber, president of Amentum's Mission Solutions business. "Amentum brings advanced technical solutions, including AI-driven predictive maintenance, repair and overhaul services, as well as world-class logistics and deployment expertise to help the state safeguard communities and its economy." Amentum will deliver a full spectrum of aviation expertise, ranging from program management and training to the operational deployment of 350 elite pilots and mechanics. Their mission is to bolster California's firefighting capabilities in the face of an escalating wildfire crisis, ensuring the state's fleet of specialized aircraft remains fully operational and ready to deploy. "Today's fire season is no longer seasonal. It's a year-round battle that grows more dangerous with each passing year," said Spinnenweber. "With decades of aviation excellence, we are committed to ensuring aircraft and crews are ready at a moment's notice, both here at home and globally, for the toughest, most vital operations." About Amentum Amentum is a global leader in advanced engineering and innovative technology solutions, trusted by the United States and its allies to address their most significant and complex challenges in science, security and sustainability. Its people apply undaunted curiosity, relentless ambition and boundless imagination to challenge convention and drive progress. Its commitments are underpinned by the belief that safety, collaboration and well-being are integral to success. Headquartered in Chantilly, Virginia, The Daily Advance has approximately 50,000 employees in more than 70 countries across all 7 continents. Visit The Daily Advance at amentum.com to learn how The Daily Advance advance the future together. Follow Amentum on LinkedIn Forward-Looking Statements This press release contains or incorporates by reference statements by Amentum Holdings, Inc. (the "Company") that relate to future events and expectations and, as such, constitute "forward-looking statements" as that term is defined in the Private Securities Litigation Reform Act of 1995 and other federal securities laws. These forward-looking statements may be characterized by terminology such as "believe," "project," "expect," "anticipate," "estimate," "forecast," "outlook," "target," "endeavor," "seek," "predict," "intend," "strategy," "plan," "may," "could," "should," "will," "would," "will be," "will continue," "will likely result," or the negative thereof or variations thereon or similar terminology generally intended to identify forward-looking statements. All statements, other than historical facts, including, but not limited to, statements regarding the anticipated work and revenue under the awarded contract, and the Company's objectives, expectations and intentions, applicable legal, economic and regulatory conditions, and any assumptions underlying any of the foregoing, are forward-looking statements. A number of important factors could cause actual results to differ materially from those contained in or implied by these forward-looking statements, including those factors discussed in its filings with the Securities and Exchange Commission (SEC), including, among others: the occurrence of an accident or safety incident; the ability of the Company to control costs, meet performance requirements or contractual schedules; and other factors set forth under Item 1A, Risk Factors in its Annual Report on Form 10-K for the fiscal year ended September 27, 2024, which can be found at the SEC's website at www.sec.gov or the Investor Relations portion of its website at www.amentum.com. Any forward-looking statement speaks only as of the date on which it is made, and the Company assumes no obligation to update or revise such statement, whether as a result of new information, future events or otherwise, except as required by applicable law. Kristin Jones Nathan Rutledge KEYWORD: CALIFORNIA VIRGINIA UNITED STATES NORTH AMERICA INDUSTRY KEYWORD: ENVIRONMENT CONTRACTS HOMELAND SECURITY CONSULTING OTHER ENERGY PROFESSIONAL SERVICES PUBLIC POLICY/GOVERNMENT ENERGY STATE/LOCAL DEFENSE PUB: 04/07/2026 08:30 AM/DISC: 04/07/2026 08:30 AM Special editions.

Yahoo Finance
Apr 2nd, 2026
Amentum misses revenue estimates by 2.5% as government consulting stocks drop 10.5% in Q4

Booz Allen Hamilton led government and technical consulting stocks in Q4, despite revenues of $2.62 billion missing estimates by 3.8%. The sector overall posted a weak quarter, with the seven tracked companies missing revenue consensus by 0.8% on average. Amentum reported revenues of $3.24 billion, down 5.2% year on year and missing analysts' expectations by 2.5%. The company delivered weaker-than-expected results with revenue guidance also falling short. Its shares have declined 28.1% since reporting. The sector faces uncertainty as the Trump administration signals potential cuts to government spending, though demand for cybersecurity, AI-driven defence solutions and sustainability consulting is expected to provide long-term growth. Share prices across the sector have averaged a 10.5% decline since latest earnings results.

Yahoo Finance
Mar 30th, 2026
Amentum quadruples Hawaii HQ, launches contested logistics centre for USINDOPACOM

Amentum has relocated its Hawaii office to a significantly larger facility in Honolulu, quadrupling its local headquarters size to enhance support for US Indo-Pacific Command. The expansion includes establishing a new Center for Contested Logistics to address supply chain vulnerabilities in modern warfare. The move reflects Amentum's commitment to the Indo-Pacific region, where anti-access/area-denial strategies pose risks to communication networks and supply lines. The company manages over 1,000 personnel across the Hawaiian Islands, providing services including intelligence analysis, logistics and aircraft maintenance. Key programmes include the INDOPACOM Technology, Experimentation, Analysis and Management Services initiative and the Pacific Missile Range Facility contract. The expansion aims to centralise regional operational teams alongside Hawaii-based customers, enabling greater agility in addressing evolving security dynamics.

Business Wire
Mar 30th, 2026
Amentum expands operations in Hawaii, enhances support for USINDOPACOM, and launches the Center for Contested Logistics.

Amentum expands operations in Hawaii, enhances support for USINDOPACOM, and launches the Center for Contested Logistics. Image credit: Captain Jared McCully, U.S. Army HONOLULU-(BUSINESS WIRE)-Amentum (NYSE: AMTM) announces the relocation of its Hawaii office from Aiea to a new, significantly larger facility at 3375 Koapaka Street in Honolulu. This strategic move quadruples the size of Amentum's local headquarters and reflects the company's commitment to bolstering U.S. Indo-Pacific Command (USINDOPACOM) mission delivery in the region. The expansion also includes the establishment of a new Center for Contested Logistics, a cutting-edge hub aimed at addressing one of modern warfare's most critical challenges. "This investment enhances our ability to scale operations, rapidly develop solutions and adapt to the evolving security dynamics in the Asia-Pacific region." Share "Our mission is to transform contested logistics from a strategic vulnerability into a decisive advantage," said Mark Walter, president of Amentum's Engineering and Technology Group. "By expanding our local headquarters, we are centralizing our regional operational and solutions development teams alongside our Hawaii-based customers and teams to enable greater agility and responsiveness. This investment enhances our ability to scale operations, rapidly develop solutions and adapt to the evolving security dynamics in the Asia-Pacific region." The Indo-Pacific region has emerged as one of the United States' highest strategic priorities. Anti-access/area-denial (A2/AD) strategies in the region pose significant risks to communication networks, supply lines, and cyber infrastructure. Maintaining mission readiness in this complex environment requires resilient systems capable of adapting to long-range disruptions while ensuring operational independence. As the U.S. military's oldest and largest unified command, USINDOPACOM plays a pivotal role in defending U.S. interests, deterring aggression, and promoting regional security and stability. "This move is a clear signal of our long-term commitment to the Indo-Pacific and to the warfighters we sit with and support every day, strengthening our ability to operate, innovate, and prevail in contested environments," said Brian Bethea, vice president of Amentum's Indo-Pacific Mission Integration Program. Amentum's contributions to USINDOPACOM's mission are broad and multifaceted, managing over 1,000 people across the Hawaiian Islands. The company's key programs in the region include: * INDOPACOM Technology, Experimentation, Analysis, and Management Services (ITEAMS): This initiative drives advanced analysis, experimentation, and testing to optimize Department of Defense operations and align with USINDOPACOM's priorities. * Pacific Missile Range Facility (PMRF) Contract: Partnering with a Native Hawaiian-owned firm, Amentum delivers leading-edge technological solutions and sustainment capabilities to support PMRF operations. * Comprehensive Support Services: From intelligence analysis and logistics to supply chain management and aircraft maintenance, Amentum provides critical services to ensure operational readiness across the region. With these programs and its newly expanded regional headquarters, Amentum continues to serve as a trusted partner, delivering innovative solutions to advance USINDOPACOM's vital mission in the Indo-Pacific. The relocation underscores the company's investment in the region's security and stability while reinforcing its ability to adapt to the challenges of the future. About Amentum Amentum is a global leader in advanced engineering and innovative technology solutions, trusted by the United States and its allies to address their most significant and complex challenges in science, security and sustainability. Our people apply undaunted curiosity, relentless ambition and boundless imagination to challenge convention and drive progress. Our commitments are underpinned by the belief that safety, collaboration and well-being are integral to success. Headquartered in Chantilly, Virginia, we have approximately 50,000 employees in more than 70 countries across all 7 continents. Visit us at amentum.com to learn how we advance the future together. Follow @Amentum_corp on X Follow Amentum on LinkedIn Forward-Looking Statements This press release contains or incorporates by reference statements by Amentum Holdings, Inc. (the "Company") that relate to future events and expectations and, as such, constitute "forward-looking statements" as that term is defined in the Private Securities Litigation Reform Act of 1995 and other federal securities laws. These forward-looking statements may be characterized by terminology such as "believe," "project," "expect," "anticipate," "estimate," "forecast," "outlook," "target," "endeavor," "seek," "predict," "intend," "strategy," "plan," "may," "could," "should," "will," "would," "will be," "will continue," "will likely result," or the negative thereof or variations thereon or similar terminology generally intended to identify forward-looking statements. All statements, other than historical facts, including, but not limited to, statements regarding the anticipated work and revenue under the awarded contract, and the Company's objectives, expectations and intentions, applicable legal, economic and regulatory conditions, and any assumptions underlying any of the foregoing, are forward-looking statements. A number of important factors could cause actual results to differ materially from those contained in or implied by these forward-looking statements, including those factors discussed in our filings with the Securities and Exchange Commission (SEC), including, among others: the occurrence of an accident or safety incident; the ability of the Company to control costs, meet performance requirements or contractual schedules; and other factors set forth under Item 1A, Risk Factors in our Annual Report on Form 10-K for the fiscal year ended September 27, 2024, which can be found at the SEC's website at www.sec.gov or the Investor Relations portion of our website at www.amentum.com. Any forward-looking statement speaks only as of the date on which it is made, and the Company assumes no obligation to update or revise such statement, whether as a result of new information, future events or otherwise, except as required by applicable law.

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