DoD RMF ISSE Security Engineer (TS/SCI)

cFocus Software Incorporated; United States; On-site; USD 120,000 - 180,000; Full time

Job summary

cFocus Software Incorporated seeks an Information System Security Engineer (ISSE) to support USAF. This on-site role in Linthicum Heights, MD requires an active TS/SCI clearance and focuses on implementing and validating security controls across systems, networks, and cloud services.

Responsibilities include engineering secure configurations, integrating security into CI/CD, and maintaining RMF/ATO support documentation with a strong emphasis on collaboration with architecture, cybersecurity,

Qualifications

• Active TS/SCI clearance is required.
• Bachelor's degree in CS/IT or related field.
• Experience implementing and validating security controls for enterprise systems.
• Knowledge of RMF, authorization boundaries, control assessments, and compliance evidence.
• Experience with STIGs, secure configurations, vulnerability analysis, and remediation validation.
• Ability to engineer security across networks, operating systems, applications and cloud services.
• Experience scripting, IaC/CaC, source control, and security integration in CI/CD.
• Experience configuring logging, monitoring, alerting, and security tool integrations.
• Ability to document designs, test results, configurations, and remediation recommendations clearly.
• Strong collaboration skills across architecture, cybersecurity, development, and operations teams.

Responsibilities

• Translate security architecture, system requirements and DoD compliance into actionable controls.
• Implement and validate controls enforcing government-defined boundaries across infrastructure, apps and cloud.
• Engineer secure configurations for networks, servers, applications, and supporting services.
• Develop and maintain automation scripts applying STIGs and document configurations and diagrams.
• Integrate cybersecurity controls into CI/CD pipelines.
• Implement IaC and CaC using centralized repos and approved baselines; support automated security evaluation.
• Configure and validate logging, monitoring, observability, and alerting across boundaries.
• Analyze findings, recommend fixes, implement approved actions, verify remediation.
• Support security testing by defining validation steps and collecting evidence.
• Provide evidence, configuration records, test results, and monitoring data for RMF/ATO/cATO.

Skills

Active TS/SCI clearance

Security engineering across networks/O

Scripting / IaC / CaC / CI/CD security

RMF / DoD compliance knowledge

STIGs / secure configurations / vuln.

Logging / monitoring / alerting / tool

Documentation of designs / test data

Cross-team collaboration

Education

B.S. Computer Science / Information Technology / related field

Job description

cFocus Software Incorporated seeks an Information System Security Engineer (ISSE) to support USAF. This on-site role in Linthicum Heights, MD requires an active TS/SCI clearance and focuses on implementing and validating security controls across systems, networks, and cloud services.

Responsibilities include engineering secure configurations, integrating security into CI/CD, and maintaining RMF/ATO support documentation with a strong emphasis on collaboration with architecture, cybersecurity,