Information System Security Engineer

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

Job summary

Booz Allen Hamilton in the United States is seeking an experienced Information System Security Engineer to lead cybersecurity engineering across the full system lifecycle for DoD collateral, SAP and SCI environments. The role ensures security requirements are integrated into architectures, designs, development, testing, and sustainment, supporting accreditation under RMF and JSIG.

The position requires 8+ years in ISSO/ISSM/ISSE/SCA for classified programs, TS/SCI clearance with polygraph, a

Qualifications

• 8+ years as ISSO/ISSM/ISSE/SCAs on classified programs
• Experience supporting RMF activities with EMASS/SNOW/Xacta
• Experience building/maintaining classified networks (SIPRNet/CWAN)
• Ability to build/review Splunk dashboards, searches & audit analysis
• Ability to decompose RMF requirements into technical solutions (JSIG/ICD-503)
• Active TS/SCI clearance; willingness to take a polygraph
• Bachelor’s degree and IAM Level III certification

Responsibilities

• Lead cybersecurity engineering across the full system lifecycle
• Integrate security requirements into architectures, designs & tests
• Conduct security architecture reviews, threat modeling & risk assessments
• Develop security artifacts (STIGs, control traceability, diagrams)
• Assess compliance, evaluate design options & provide mitigations
• Support secure enclave integration including SIPRNet & Type 1 crypto
• Collaborate with ISSOs/ISSMs/program stakeholders throughout development

Skills

ISSO/ISSM/ISSE experience

RMF knowledge

Threat modeling

Security architecture reviews

SPLUNK dashboards & audit analysis

Education

Bachelor’s degree

IAM Level III certification (CISSP/GSLC/CISM)

Tools

EMASS

SNOW

Xacta

SIPRNet architectures

Splunk

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 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.**Compensation**At Booz Allen, we celebrate your contributions, provide you with opportunities and choices, and support your total well-being. Our offerings include health, life, disability, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, work-life programs, and dependent care. Our recognition awards program acknowledges employees for exceptional performance and superior demonstration of our values. Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible to participate in Booz Allen’s benefit programs. Individuals that do not meet the threshold are only eligible for select offerings, not inclusive of health benefits. We encourage you to learn more about our total benefits by visiting the Resource page on our Careers site and reviewing Our Employee Benefits page.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.**Candidate AI Usage Policy**AI is a part of our daily work at Booz Allen, and we are committed to the responsible and ethical use of AI tools. However, we want to ensure a fair candidate process based on **your** own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) or other tools to assist with responses during interviews (whether in-person or virtual) is prohibited **unless permission is explicitly provided**.**Work Model** Our people-first culture prioritizes the benefits of collaboration, whether it occurs in person or virtually. To support engagement and effective communication, employees working virtually are generally expected to have their cameras on during meetings.* **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.