Information Systems Security Engineer / ISSE (HPC)

Job Description

Overview
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AMERICAN SYSTEMS, a 100% employee-owned federal contractor, is seeking a highly experienced **Information Systems Security Engineer (ISSE)** to support **RHEL** and **Windows systems** in a **High Performance Computing (HPC)** environment in **Arlington, VA**.

**This role includes a $10,000 sign-on bonus in addition to a generous compensation package.**

Responsibilities
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As an **Information Systems Security Engineer (ISSE)**at AMERICAN SYSTEMS, you will:

* Design and implement enterprise-level security architectures for **RHEL systems** in a **High Performance Computing (HPC)** **SAP environment**
* Apply **JSIG** requirements to system authorization, control implementation, and documentation
* Manually**develop RMF/JSIG authorization artifacts** , including **SSPs** , **control narratives** , **POA\&Ms,** and **supporting evidence**
* Perform hands-on security assessments on **Linux** and **Windows systems** , including **command-line audits**, compliance scans, log review, and control validation
* Analyze scan results, identify security gaps, and support remediation planning and execution
* Validate and implement**host-based firewall** and **security configurations** in coordination with system administrators
* Manage and track **POA\&Ms** through mitigation, remediation, or risk acceptance
* Ensure system compliance through **continuous monitoring** of controls, procedures, and documentation
* Identify security deficiencies and provide actionable remediation recommendations
* Support **system recovery** and security oversight following outages or incidents
* Participate in **change management** activities, assessing **security impacts to SAP systems**
* Support security investigations,**incident response** , and **remediation** activities
* Collaborate with engineering teams to integrate security requirements into system design and production releases

Qualifications
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* Active **Top Secret/SCI**with SAP eligibility
* Bachelor's degree in a STEM discipline with **11--12 years** of relevant experience, **or**

* Master's degree with **8--10 years** of relevant experience
* Minimum **5 years of experience** designing and implementing enterprise-scale security solutions with hands-on security assessment experience across **Linux systems** , including **command-line validation**
* **DoD 8140 IAT Level III** --equivalent certification (e.g., **SecurityX** , **CISSP**, CCNP Security, CISA, GCED, GCIH, or CCSP)
* Strong background in **RMF** , ICD 503, **NIST SP 800-53,** DCID 6/3, or current DoD authorization practices
* Working knowledge of the **JSIG** and its application to RMF authorization
* Proven experience **authoring RMF/JSIG artifacts by hand**, without reliance on automated RMF tools (eMASS, Xacta, etc.)
* Experience supporting security tools such as **Splunk** Enterprise, **HBSS** , **McAfee ePO** , **ENS** , and **DLP**
* Demonstrated security engineering experience across **Linux, Windows** , **Cisco** platforms, databases (**SQL** or **Oracle** ), and **virtualized**environments

Pay Transparency Statement
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AMERICAN SYSTEMS is committed to pay transparency for our applicants and employee-owners. The salary range for this position is USD $165,000.00/Yr. - USD $200,000/Yr. Actual compensation will be determined based on several factors permitted by law. AMERICAN SYSTEMS provides for the welfare of its employees and their dependents through a comprehensive benefits program by offering healthcare benefits, paid leave, retirement plans, insurance programs, and education and training assistance.

EEO Statement
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EEO Race/Sex/Disability Status/Veteran Status