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Lead System Security Engineer

Parsons Corporation
United Statesfull_timeVerifiedPosted 23 Jun 2025
💰 $260,600/yr($144,800/yr$260,600/yr)

About the role

In a world of possibilities, pursue one with endless opportunities. Imagine Next!

When it comes to what you want in your career, if you can imagine it, you can do it at Parsons. Imagine a career working with exceptional people sharing a common quest. Imagine a workplace where you can be yourself. Where you can thrive. Where you can find your next, right now. We’ve got what you’re looking for.

Job Description:

Parsons is looking for an amazingly talented Lead System Security Engineer to join our team!

What You'll Be Doing:

  • Serve as the technical SME for RMF-based cybersecurity assessments and system authorization strategies.
  • Develop and update RMF artifacts, including some or all of the following:
    • System Security Plans (SSPs)
    • Security Control Traceability Matrices (SCTMs)
    • Configuration Management Plans
    • Incident Response Plans
    • Continuous Monitoring (CONMON) Plans
    • POA&Ms and Security Assessment Reports (SARs)
  • Support the IATT, ATC, and ATO processes, supporting internal engineering teams and external Authorizing Officials (AOs).
  • Perform system-level security control assessments (NIST SP 800-53) and validation of security posture.
  • Evaluate external connection risks and support the ATC approval process with boundary defense configurations and enclave protections.
  • Support vulnerability and compliance scans using tools such as ACAS, Tenable Security Center, STIG Viewer, and Evaluate STIG.
  • Work with development and infrastructure teams to define, validate, and maintain secure configurations and baselines.
  • Maintain and update continuous monitoring (CONMON) processes, collect metrics, track findings, and coordinate with ISSMs and stakeholders.
  • Draft and maintain cyber documentation required for accreditation package submission.
  • Assist in security impact analyses for changes in configuration, new software deployments, or system modifications

What Required Skills You'll Bring:

  • Bachelor’s degree in Software, Computer, Systems, Electrical, Information Technology Engineering, or a related technical field. Additional years of experience can count in lieu of a degree.
  • 15+ years of related experience
  • Experience with RMF-based cybersecurity assessments
  • Experience supporting IATT, ATO, or ATC approval efforts
  • Strong understanding of DoD and NIST cybersecurity frameworks and controls
  • Possess a DoD 8140.03/8570.01 Information Assurance Manager II certification or able to obtain within 6 months of hire: Certified Information Systems Security Professional (CISSP), Certified Information Security Manager (CISM), Certified Authorization Professional (CAP), CompTIA Advanced Security Practitioner Plus (CASP+), GIAC Security Leadership Certification (GSLC), Chief Information Security Officer Certification (CCISO), or Healthcare Information Security and Privacy Practitioner (HCISPP)
  • Knowledge of and hands on experience with Security Technical Implementation Guides (STIGs), Assured Compliance Assessment Solution (ACAS), Host Based Security System (HBSS) / Trellix
  • Must have the ability to work in a dynamic environment and effectively interact with numerous DOD, military/civilian personnel and industry partners
  • Working knowledge of Microsoft Office (Word, PowerPoint, and Excel)

What Desired Skills You Might Bring:

  • Cybersecurity certifications such as CompTIA CASP+, CISSP, OSCP, CISM, CEH, GSEC
  • System administration experience with Linux
  • Network switch and router administration experience or network engineering experience
  • Experience with VMware
  • Experience with Kubernetes and Docker
  • Familiarity with MBSE/SysML system engineering

Security Clearance Requirement:

An active Top Secret SCI security clearance is required for this position.​

This position is part of our Federal Solutions team.

The Federal Solutions segment delivers resources to our US government customers that ensure the success of missions around the globe. Our intelligent employees drive the state of the art as they provide services and solutions in the areas of defense, security, intelligence, infrastructure, and environmental. We promote a culture of excellence and close-knit teams that take pride in delivering, protecting, and sustaining our nation's most critical assets, from Earth to cyberspace. Throughout the company, our people are anticipating what’s next to deliver the solutions our customers need now.

Salary Range: $144,800.00 - $260,600.00

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Company

Parsons Corporation

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