Sr. Information Systems Security Engineer III (6544)

MetroStar•Washington, DC

10h•Onsite

About The Position

As Sr. Information Systems Security Engineer III, you’ll embed Zero Trust principles into system security engineering to maintain acceptable risk posture throughout the system lifecycle. This is a hands‐on, execution‐focused position critical to advancing Zero Trust maturity in air‐gapped and classified environments. MetroStar believes that great technology services require amazing people. The company has a two-decade legacy of building the best and brightest teams, driven by its mission: A passion for our people. Value for our customers.

Requirements

An active TS/SCI clearance
Bachelor’s degree in Cybersecurity, Information Systems, Computer Science, Engineering, or a related field (or equivalent experience)
10–12 years of total professional experience, with 7 years specifically in information systems security engineering, including hands-on RMF / ICD 503 work and exposure to Zero Trust or modern security architectures
Demonstrated experience supporting ICD-based RMF authorization, ATO, and continuous compliance activities
Ability to communicate security risks, risk responses, and recommendations clearly to both technical and non-technical stakeholders
Experience working in classified or Intelligence Community environments, including enclave-based or air-gapped systems

Responsibilities

Partner directly with the Zero Trust Architect to implement Zero Trust designs across identity, device, network, application, and data security domains.
Translate Zero Trust architecture patterns into RMF compliant security controls and system implementations.
Support deployment and integration of Zero Trust capabilities such as identity centric access control, least privilege, segmentation, and continuous verification.
Assess existing system architectures against Zero Trust objectives and recommend engineering changes to reduce risk.
Support modernization efforts by ensuring Zero Trust requirements are incorporated into system upgrades and new solutions.