Senior ISSE — RMF/ATO Expert for Linux Infra (TS/SCI)

Elevate Technology Group; Fairfax (VA); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Competitive base salary

Generous 401(k) contributions

Individual Benefits Account (IBA)

Medical, dental, vision

Generous paid time off

Life insurance

Tuition reimbursement

Flexible working hours in on-site环境

Job summary

Elevate Technology Group is seeking an Information System Security Engineer (ISSE) to operate in Fairfax, VA or Denver, CO. You will lead RMF/AT0 activities, build SSPs, and implement security controls across Linux environments with DevOps collaboration.

The role demands an Active TS/SCI clearance with CI Polygraph, extensive RMF/A&A experience, and hands-on Linux security expertise to support mission-critical DoD/IC programs.

Qualifications

• Active TS/SCI clearance with CI Polygraph is required.
• Experience developing and maintaining SSPs, POA&Ms, and security assessments.
• Strong RMF/A&A knowledge and ATO processes for DoD/IC environments.
• Hands-on Linux system administration experience and scripting.

Responsibilities

• Lead RMF activities including A&A and ongoing ATO maintenance.
• Develop, review, and maintain SSPs and accreditation docs.
• Implement security controls across Linux-based infrastructure, virtualized and bare-metal.
• Conduct vulnerability assessments, scanning, audits, and continuous monitoring.
• Collaborate with systems teams to remediate vulnerabilities and ensure compliance.
• Support system hardening, patching, configuration management, and log reviews.
• Evaluate architectures for IC requirements and provide security guidance.
• Coordinate security assessments and risk management across the lifecycle.
• Work with development and infra teams to embed security in design and operations.
• Maintain DoD/IC cybersecurity policy and standards compliance.

Skills

RMF/ATO processes

Linux/Unix expertise

Vulnerability management

Security accreditation knowledge

Education

Bachelor's Degree in Computer Science, Information Technology, Cybersecurity, Engineering

Tools

Kubernetes

Docker

Ansible

Puppet

Foreman

Nessus

Nmap

Rapid7

VMware

RHEL/Linux admin

Job description

Elevate Technology Group is seeking an Information System Security Engineer (ISSE) to operate in Fairfax, VA or Denver, CO. You will lead RMF/AT0 activities, build SSPs, and implement security controls across Linux environments with DevOps collaboration.

The role demands an Active TS/SCI clearance with CI Polygraph, extensive RMF/A&A experience, and hands-on Linux security expertise to support mission-critical DoD/IC programs.