Job Description

Leidos is seeking an experienced Systems Engineer (SME) to join our Integrated Information Technology Support Services (I3TS) team who will support an extensive digital modernization program critical to Defense Threat Reduction Agency (DTRA). The Systems Engineer will work closely with the Leidos and Government technical leadership team to help drive innovation growth and efficiencies within the I3TS portfolio.

Primary Responsibilities:

The Commercial Solutions for Classified (CSfC) Systems Engineer SME will architect and maintain mission-criticalPublic Key Infrastructure (PKI)andHardware Security Modules (HSMs) overseeVMware or Nutanix hyperconverged infrastructure (HCI) with vSAN and implement resilient backup and disaster recovery frameworks. This role will also build and administer hardenedWindows Server and Red Hat Enterprise Linux (RHEL)platforms establish robustSyslog aggregation and enforce rigorousDoW vulnerability patching and DISA STIG complianceto sustain full Authorization to Operate (ATO) and assist with automating gold-image provisioning viaSCCM.

Clearance: Active TS/SCI Clearance at time of consideration.

Core Responsibilities:

• Architect deploy and maintain CSfC infrastructure operating within Black/Gray/Red networks.

• Design configure and maintain multi-layered CSfC architectures in alignment with NSA Data-At-Rest (DAR) and Mobile Access (MA) Capability Packages.

• Architect deploy maintain Certificate Authority (CA) Online Certificate Status Protocol (OCSP) responders and hardware-backed key protection via Hardware Security Modules (HSMs) in accordance with CSfC Key Management Requirements.

• Build manage and optimize virtualized compute and storage fabrics utilizing VMware vSphere / ESXi or Nutanix AHV with vSAN/distributed storage. Design resilient air-gapped backup and disaster recovery (DR) pipelines.

• Deploy configure and administer hardened Microsoft Windows Server (Active Directory DNS Group Policy) and Red Hat Enterprise Linux (RHEL) systems.

• Establish centralized tamper-resistant Syslog and audit logging infrastructure across all network and system devices hypervisors and operating systems to support continuous monitoring and SIEM ingestion.

• Understanding of cross-domain systems and forwarding log data through it to a centralized SIEM

• Build and maintain automated OS deployment and gold image pipelines using Microsoft Configuration Manager (MCM/SCCM) for CSfC End User Devices (EUD).

• Apply and validate patching and STIGs across all virtual and physical infrastructure. Execute vulnerability scans track IAVMs and remediate findings to maintain Authorization to Operate (ATO).

Basic Qualifications

• Bachelors degree or higher in Computer Science Information Technology Engineering Engineering Management Management Information Systems or related STEM degree program and 12-15 years of priorrelevant experience or Masters with 10 13 years of prior relevant experience. May possess a Doctorate in technical domain. Specific experience education and training may be considered in lieu of degree.

• 12 years of progressive systems engineering experience within DoD/DoW federal or defense contractor enterprise environments.

• Active TS/SCI Clearance

• Active DoD 8570.01-M / DoD 8140 IAT Level II or III baseline certification (e.g. Security CE CySA CASP or CISSP).

• Active Computing Environment certification including one of: VMware VCP/VCAP Nutanix NCP Red Hat Certified Engineer (RHCE) Microsoft Certified: Windows Server Hybrid Administrator Associate

• Direct experience drafting CSfC Key Management Plans (KMPs) and Continuous Monitoring Plans (CMPs) for NSA CSfC PMO approval.

• Proficiency with PowerShell Bash and Ansible for automated STIG remediation configuration drift detection and certificate deployment

• Advanced configuration of syslog daemons (Rsyslog Syslog-ng) and forwarding architectures to enterprise SIEM platforms (e.g. Splunk Elastic).

Preferred Qualifications

• Experience Designing deploying and maintaining IT infrastructures for DTRA or other DoW organizations

If youre looking for comfort keep scrolling. At Leidos we outthink outbuild and outpace the status quo because the mission demands it. Were not hiring followers. Were recruiting the ones who disrupt provoke and refuse to fail. Step 10 is ancient history. Were already at step 30 and moving faster than anyone else dares.

Original Posting:

For U.S. Positions: While subject to change based on business needs Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job education experience knowledge skills and abilities as well as internal equity alignment with market data applicable bargaining agreement (if any) or other law.

Required Experience:

IC

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