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Cyber / Systems Security Engineering Specialist

Patuxent River, MD, US • Posted 17 hours ago • Updated 7 hours ago

Full Time

On-site

Fitment

Dice Job Match Score™

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Job Details

Skills

Security Operations
System Security
Documentation
Interfaces
SysML
Telecommuting
Vulnerability Management
Collaboration
Reporting
Microsoft Windows
Hypervisor
Evaluation
Network
VPN Administration
Management
Linux
CentOS
Ubuntu
Authentication
VMware
Regulatory Compliance
Security Controls
System Administration
Cyber Security
Linux Administration
Red Hat Enterprise Linux
STIG
Vulnerability Scanning
Workflow
Enterprise Networks
Routing
Switches
VLAN
Firewall
Virtualization
VMware ESXi
VMware vSphere
Backup
Recovery
HBSS
GitLab
Continuous Integration
Continuous Delivery
Scripting
Python
Windows PowerShell
Ansible
RMF
Risk Management Framework
DoD
Security Clearance
ICD
SAP
Access Control

Summary

MTSI is seeking Cyber / Systems Security Engineering Specialist (with MBSE experience) to support cyber engineering and platform/system security activities across platform program environments. The role blends hands-on technical administration/security operations with Systems Security Engineering (SSE) practices, supporting secure configurations, vulnerability management, compliance, and security documentation. Plus, limited MBSE experience (ability to interpret interfaces and architecture intent from program models [SysML] and technical baselines). Some telework authorized.

Primary Responsibilities

Execute cybersecurity compliance and engineering activities across lab, integration, and operational support environments (RDT&E and/or program networks as assigned).
Perform vulnerability management activities including ACAS scanning coordination, patching support, remediation tracking, and security posture reporting.
Apply DISA STIGs/SRGs for Windows, Linux, hypervisors, and network devices; support scripted evaluation where applicable.
Support secure network segmentation concepts (VLANs, trunking, routing boundaries), firewall policy implementation/validation, and VPN administration (as directed).
Administer and maintain Linux-based systems and services (RHEL/CentOS/Ubuntu), including directory integration and authentication controls where required.
Support virtualization platforms (VMware ESXi/vCenter) and backup/recovery practices; help ensure availability and configuration compliance.
Contribute to SSE/RMF-relevant artifacts and periodic submissions (plans, evidence, control implementations, scan outputs, POA&M support).
Read/interpret relevant architecture/interface products WBBB/RIBS-P to ensure security controls align with system boundaries and intended behavior.

Required Experience & Skills:

Minimum Qualifications

10+ years experience in DoD/DoD-adjacent IT, system administration, and/or cybersecurity support
Strong Linux administration background (RHEL preferred) and demonstrated STIG implementation experience
Experience with ACAS vulnerability scanning and remediation workflows
Working knowledge of enterprise networking fundamentals (routing/switching, VLANs, firewall policy concepts)

Experience supporting virtualization (VMware ESXi/vSphere) and backup/recovery

Desired:

Current Top Secret Clearance
HBSS/ePO client product experience
Familiarity with GitLab administration/secure CI/CD support in segmented environments
Basic scripting/automation (Python, PowerShell, Ansible)
Exposure to SSE/RMF processes and artifact preparation in program environments

Experience supporting classified spaces and handling procedures

Clearance Requirement: A current SSBI or Federal Investigative Standard Tier 5 (T5) or Tier 5 Reinvestigation (T5R) within the last 5 years. A final DoD Secret or Top Secret clearance. Eligibility for Top Secret in accordance with Intelligence Community Directive (ICD) 704 and Special Access Program (SAP) in accordance with SAP Nomination Policy (SAPNP) with no disqualifying security issues that will deem a candidate ineligible for access.

#LI-AC1

#LI-Onsite

Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.

Dice Id: RTL041421
Position Id: f663bb8f13995f6e017f9bb256a03e18
Posted 17 hours ago

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