IT CYBERSECURITY SPECIALIST (CUSTSPT/INFOSEC)

About the role

Defense Finance and Accounting Services (DFAS) mission is to lead the Department of Defense (DoD) in finance and accounting by ensuring the delivery of efficient, exceptional quality pay and financial information.

What you will do

• Serves as senior Security Control Assessor leading assessments of information systems.
• Applies experience as network engineer, web administrator, developer, or DBA using Nessus, Fortify, or Burp Suite to evaluate security control effectiveness.
• Plans, develops, and executes detailed security assessment plans for management, operational, and technical controls per RMF, NIST 800-53, and DoDI 8510.01.
• Performs hands-on technical testing across networks, web applications, databases, and cloud.
• Identifies system weaknesses and vulnerabilities in complex IT environments through comprehensive testing using eMASS, Tenable Nessus, Fortify, and Burp Suite.
• Analyzes results to determine residual risk and control effectiveness.
• Prepares comprehensive assessment reports, risk documentation, and authorization packages.
• Provides technically sound recommendations to leadership, SCA, Authorizing Officials, and senior leaders on system risk posture.
• Serves as technical authority and mentor to junior assessors and IT staff.
• Provides expert guidance on secure system configuration, RMF processes, security tool usage, and mitigation strategies for complex enterprise systems.

Education

Education is not substitutable for specialized experience at this grade level.

How you will be evaluated

IMPORTANT NOTE - YOU MUST FOLLOW ALL APPLICATION INSTRUCTIONS CAREFULLY.

ERRORS OR OMISSIONS MAY AFFECT YOUR RATING.

You will be evaluated on how well your qualifications, as demonstrated in your application materials (e.g., resume, supporting documents) and your responses on the application, meet the requirements listed in this vacancy announcement.

Criminal History Inquiries - If you apply to this position and are selected, we will not ask about your criminal history before you receive a conditional job offer.

If you believe you were asked about your criminal history improperly, contact the agency @ *** (this call center group box will be the intake for complaints and will forward to appropriate POCs).

Documents you must provide

• you are encouraged to choose only ONE method of submitting your resume.
• (HR will review the resume that the system date stamps as the latest one received and this may not be the resume which best reflects your qualifications for the job and may result in an ineligible rating.) You may submit your resume by: attaching in your USAJOBS account; uploading in your Application Manager account; OR faxing.
• Complete Assessment Questionnaire Other Supporting Documents The following supporting documents are ONLY required if applicable to your personal qualifications or status.
• They must be received by the closing date of the announcement or at the time of application if applying to an announcement with an extended closing date.
• Transcripts and/or Certifications: You must submit documentation if you are substituting education for experience.
• Many applicants must also submit documentation for proof of meeting the basic education requirement.
• For additional information on acceptable documents, click here Transcripts and Certifications.
• You must also document your education and/or certifications in your resume.
• To be creditable, education must have been obtained in an accredited college or university recognized by the U.S. Department of Education.
• Cover Letter: You may submit a cover letter which will be forwarded to the selecting official with your resume.
• Your cover letter will not be used to verify your qualifications or determine eligibility for preference.
• Military Spouse Preference (MSP) Eligible: Military Spouse Preference applicants, must be selected and placed at the highest grade level for which they have applied and been determined best qualified up to and including the full performance level.
• You must include a completed copy of the Military Spouse PPP Self-Certification Checklist dated within 30 days along with the documents identified on the checklist to verify your eligibility for Military Spouse Preference.
• To download the checklist, select "Save" or "Save As" instead of "Open." Save the document to your device then open it as a PDF.
• Once the form is opened, select "Enable All Features" and the form will populate so that it can be completed. *** Military Reserve (MR) and National Guard (NG) Technicians PPP Eligible: MR and NG technicians PPP applicants must be selected and placed at the full performance level if determined well qualified.
• You must include a completed copy of the Military Reserve and National Guard Technician PPP Self-Certification Checklist to verify your eligibility for Military Reserve and National Guard Technician preference.
• Click here to obtain a copy of the Military Reserve and National Guard Technician PPP Self-Certification Checklist.
• Military Reserve (MR) and National Guard (NG) Technicians Receiving Disability Retirement PPP Eligible: MR and NG technicians receiving disability retirement PPP applicants must be selected and placed at the full performance level if determined well qualified.
• You must include a completed copy of the Military Reserve and National Guard Technician Disability PPP Self-Certification Checklist to verify your eligibility for Military Reserve and National Guard Technician Disability preference.
• Click here to obtain a copy of the Military Reserve and National Guard Technician Disability PPP Self-Certification Checklist.
• Retained Grade PPP Eligible: Retained Grade PPP applicants, must be selected and placed at the full performance level if determined well qualified.
• You must include a completed copy of the Retained Grade PPP Self-Certification Checklist to verify your eligibility for Retained Grade preference.
• Click here to obtain a copy of the Retained Grade PPP Self-Certification Checklist.
• WARNING: Failure to submit a complete application package including any required documentation by 11:59 PM (EST) on the 11/11/2026, or at the time of application for announcements with an extended closing date, may result in an ineligible rating and loss of consideration.
• To verify that your application is complete, log into your USAJOBS account, select Application Status and More Information.
• The Details page will display the status of your application.
• It is the applicant's responsibility to verify that information entered, uploaded, or faxed is received, legible and accurate.
• HR will not modify answers submitted by an applicant.

What to expect next

The resume you submit will be used to assess your qualifications for the job and to identify the best-qualified applicants to be referred to the hiring manager for further consideration and possible interviews. We will notify you of the outcome after each of these steps is completed.

After making a tentative job offer, we will conduct a suitability/security background investigation.

Additional information

Moving expenses will be paid. Telework availability will be based upon the mission requirements and supervisory determination. **This Job Opportunity Announcement is using an additional online assessment tool to evaluate applicants. Please review the HOW YOU WILL BE EVALUATED, HOW TO APPLY and WHAT TO EXPECT NEXT sections below for instructions.

This position is being filled under the Direct Hire Authority for Certain Personnel of the Department of Defense via delegated authority by the Office of the Secretary of Defense. Positions may be filled as permanent or term with a full-time or part-time work schedule. Pay will vary by geographic location.

We reserve the right to close this announcement early or to extend, as appropriate, based upon the needs of the Agency. Qualified application packages may be referred to management at various points in the selection process depending on the number and timing of applications received. Selections may be made at any point during the announcement open period.

Employment with DFAS means access to generous benefits such as: health, vision, and dental insurance, retirement benefits, paid time off, and educational benefits. Selections are subject to restrictions resulting from the DoD Program for Stability of Civilian Employment. A one year probationary period may be required.

We may use this announcement to fill additional vacancies within 90 days of the closing date. Travel requirement is Seldom. This position is not covered by a bargaining unit.

Veteran's Preference: Veteran's preference does not apply under this Direct Hire Authority (DHA). This position is Exempt from the Fair Labor Standards Act. DFAS recognizes the value of competencies gained through formal education and professional certifications.

To ensure that consistent credit is given for these credentials in the selection process DFAS has developed standard selection criteria to be used when filling positions in professional and administrative series. Selections for professional and administrative positions will be based on four categories of selection criteria: Experience, Other, Education, and Certifications.

Males born after 12-31-59 must be registered or be exempt from Selective Service (see ***). Retired Civil Service Employee: Employment of retired Federal employees receiving an annuity is subject to the requirements of the Department of Defense (DoD) policy guidance. (See DoD Instruction 1400.25, Volume 300, here).