Senior System Security Engineer

Job Description

Parsons is seeking a talented Senior Cyber Security Engineer to join our growing team!

While this position is primarily on-site, there will be opportunities to work remote when planning and documenting.

• 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

• Active Secret Clearance
• 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.
• 8+ years of related experience
• CompTIA Sec+
• Experience with RMF-based cybersecurity assessments
• Experience supporting IATT, ATO, or ATC approval efforts
• Strong understanding of DoD and NIST cybersecurity frameworks and controls

• 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

An active Secret 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: $ - $

We value our employees and want our employees to take care of their overall wellbeing, which is why we offer best-in-class benefits such as medical, dental, vision, paid time off, 401(k), life insurance, flexible work schedules, and holidays to fit your busy lifestyle! This position will be posted for a minimum of 3 days and will continue to be posted for an average of 30 days until a qualified applicant is selected or the position has been cancelled.

Parsons is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status or any other protected status.

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