Information Systems Security Engineer
$99k - $225kBooz Allen Hamilton
- # Information Systems Security EngineerApplylocations: Fort Belvoir, VAtime type: Full timeposted on: Posted Todaytime left to apply: End Date: September 13, 2026 (30+ days left to apply)job requisition id: R0242248Information Systems Security Engineer**The Opportunity:**In this role, you will support a Cyber team working with the Army Intelligence community. We’re looking for a self-starter who is proactive in providing engineering solutions and can be adaptable to changing requirements. The role is not primarily client-facing, but you should expect to have some interface with stakeholders. This position is located in Fort Belvoir, VA.**What You’ll Work On:*** Configure and maintain Nessus Scanners and Tenable Security Center (SC) resources. Manage scan zones to ensure comprehensive coverage across varied network enclaves.* Utilize Axonius to aggregate data from Active Directory, Cisco ISE, and ACAS to identify unmanaged assets or shadow IT missing from standard scanning cycles.* Develop and distribute tailored vulnerability reports and dashboards for ISSOs, focusing on Cyber Tasking Orders (CTOs), Critical and High vulnerabilities, and STIG non-compliance trends.* Audit Cisco ISE policies to enforce 802.1X authentication, ensuring only authorized devices access the production environment.* Optimize Elasticsearch and ingest pipelines to parse logs from network devices, Cisco ISE, and Active Directory for real-time security alerting and historical trend analysis.* Conduct weekly audits of Active Directory logs to identify anomalous account behavior, privilege escalation attempts, or unauthorized changes to Group Policy Objects (GPOs).* Perform manual and automated STIG checks on network infrastructure, using tool-based evidence such as ACAS or ISE to support Risk Management Framework (RMF) authorization packages.* Author technical justifications and remediation plans for vulnerabilities that cannot be immediately mitigated due to operational constraints.* Author and maintain localized "How-To" documentation for tool-specific workflows, such as "Auditing a Cisco Router" or "Configuring a credentialed scan in ACAS."* Audit firewall rules and ACLs for ACAS scanning traffic, ISE RADIUS, and TACACS traffic across internal enclaves.* Present critical or high priority threats and vulnerabilities on the network to stakeholders for awareness, action, and remediation.* Analyze digital evidence and investigate computer security incidents to derive useful information in support of system or network vulnerability mitigation.* Assess the effectiveness of cybersecurity measures utilized by systems.* Assess threats to and vulnerabilities of computer systems to develop a security risk profile by leveraging existing tools and dashboards.* Manage and design the network scanning process end-to-end.* Assist ISSOs in developing vulnerability management processes for applicable systems, coordinate input from ISSOs and ISSMS into scanning processes, and recommend best practices to ISSOS, ISSMS, and PM based on scanning findings.* Build out applicable network architecture leveraging existing and approved tools.* Participate and offer input for policies, standards, procedures, and risk management.* Identify, assess, and recommend cybersecurity or cybersecurity‐enabled products for use within a system.* Recommend security measures that provide confidentiality, integrity, availability, authentication, and nonrepudiation.* Perform security reviews and identify security gaps.* Participate in client deliverables as requested by the ISSM or PM.Join us. The world can’t wait.**You Have:*** 7+ years of experience in information assurance (IA)* Experience with ACAS, CISCO ISE, and Cisco Networking* Experience with Nessus Scanners and Tenable Security Center resources* Experience performing proactive solution engineering with flexibility for changing requirements* Knowledge of how to perform a STIG check on a network* Knowledge of Network Accreditation Processes* Active TS/SCI clearance; willingness to take a polygraph exam* Associate's degree* IAT Level III or IASAE II Certification**Nice If You Have:*** Experience with Axonius* Experience with TACACS+* Experience with Active Directory* Experience with Elasticsearch* Knowledge of CTOs* CASP+ or Security X Certification**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.**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.
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Vacancy posted 2 days ago
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