Information System Security Engineer

Booz Allen Hamilton; McLean (VA); On-site; USD 99,000 - 225,000; Full time

Job summary

Booz Allen Hamilton is seeking an Information System Security Engineer to lead cybersecurity engineering across the full system lifecycle for DoD collateral, SAP and SCI environments.

You will integrate security requirements into architectures, perform RMF activities, threat modeling, and risk assessments, and develop security artifacts. The role requires active TS/SCI clearance and a Bachelor's degree, with experience in SIPRNet/CWAN and SPLUNK.

Qualifications

• Active TS/SCI clearance; willingness to take a polygraph.
• Bachelor's degree required.
• 8+ years of experience supporting classified programs (ISSO/ISSM/ISSE/SCA).
• Experience RMF activities with EMASS, SNOW or Xacta.
• Experience building or maintaining classified networks such as SIPRNet or CWAN.

Responsibilities

• Lead cybersecurity engineering across full system lifecycle for DoD collateral and SCIF environments.
• Conduct security architecture reviews, threat modeling and risk assessments.
• Develop and maintain security artifacts (STIG checklists, control traceability, architecture diagrams).
• Assess system compliance, evaluate design options, provide mitigations.
• Support secure enclave integration including SIPRNet and Type 1 crypto devices.
• Collaborate with ISSOs, ISSMs, SCAs and stakeholders throughout development.

Skills

Security architecture reviews

Threat modeling

Technical risk assessments

RMF activities

Decompose RMF requirements

Active TS/SCI clearance

Polygraph willingness

Bachelor's degree

Education

Bachelor's degree

Tools

EMASS

SNOW

Xacta

SPLUNK

SIPRNet

CWAN

Job description

Information System Security Engineer

The Opportunity: You will lead cybersecurity engineering efforts across the full system lifecycle for DoD collateral, SAP and SCI environments. This role ensures security requirements are integrated into system architectures, designs, development, testing, and sustainment activities, and supports accreditation under the Risk Management Framework (RMF) and JSIG.

How You’ll Contribute: Integrate and refine cybersecurity requirements within system designs and architecture. Conduct security architecture reviews, threat modeling, and technical risk assessments. Develop and maintain security engineering artifacts such as STIG checklists, control traceability, or architecture diagrams. Assess system compliance, evaluate design alternatives, and provide mitigation recommendations. Support secure enclave integration, including SIPRNet architecture, boundary defenses, and Type 1 crypto devices. Analyze risks associated with emerging tools, technologies, and processes. Collaborate with ISSOs, ISSMs, SCAs, and program stakeholders throughout system development. Join us. The world can't wait.

You Have:

• 8+ years of experience as an ISSO, ISSM, ISSE or SCA supporting classified programs
• Experience supporting RMF activities, including documentation in tools like EMASS, SNOW or Xacta
• Experience building or maintaining classified networks such as SIPRNet or CWAN
• Ability to build and review SPLUNK dashboards, correlation searches and audit analysis
• Ability to decompose RMF security requirements such as DoD JSIG, DAAG, or ICD-503 into technical solutions
• Active TS/SCI clearance; willingness to take a polygraph exam
• Bachelor's degree
• IAM Level III certification including CISSP, GSLC, or CISM Nice

Nice If You Have:

• Experience with DoD cloud environments, such as Azure or AWS IL5/IL6
• Experience with CORA and mission impact processes
• CCSP, CASP+, cloud or network security certifications Clearance: Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information; TS/SCI clearance is required.

Salary at Booz Allen is determined by various factors, including but not limited to location, the individual's particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements. The projected compensation range for this position is $99,000.00 to $225,000.00 (annualized USD). The estimate displayed represents the typical salary range for this position and is just one component of Booz Allen's total compensation package for employees.

This posting will close within 90 days from the Posting Date.

Identity Statement As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during interviews and assessments. We reserve the right to take your picture to verify your identity and prevent fraud.

Work Model

• Remote: If this position is listed as remote, there may still be occasions when you are required to work in person at a Booz Allen or customer facility.
• Hybrid: If this position is listed as hybrid, you will be expected to work from a Booz Allen facility frequently, in alignment with leadership expectations and the needs of the role. You may also be required to work from or visit a customer facility.
• Onsite: If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, local, or international law.

Know Your Rights Poster Accommodations

Applicants who need a reasonable accommodation for any part of the application, hiring, or employment process because of a disability, a sincerely held religious belief, practice, or observance, or as otherwise required by applicable law should contact the Booz Allen Help Desk by calling 1-877-927-8278 or sending an email to [e-mail]. We will review requests on an individualized basis and provide reasonable accommodations consistent with applicable law.

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