Onsite Senior ISSE: Classified Systems & RMF Expert

DAn Solutions; Reston (VA); On-site; USD 120,000 - 170,000; Full time

Job summary

DAn Solutions in Reston, VA seeks a Sr. ISSE with active TS/SCI clearance and CI poly to support classified programs onsite. You will ensure DIA C&A and IA compliance, design secure systems, and assist in RMF-based authorization tasks across the lifecycle.

The role requires advanced Windows and Linux skills, hands-on security tool experience, and compliance with 8570 IAT Level 2. On-site work only, with no telework.

Qualifications

• Advanced Windows administration and Linux proficiency.
• Security credentials and experience commensurate with the job description.
• Practical experience deploying and troubleshooting security tools.
• Ability to critically assess practices and implement improvements.
• Excellent problem-solving and attention to detail.
• Familiar with ACAS, Trellix, Splunk, STIGs.
• Bachelor's degree with 4 years' relevant experience (or 8 years).
• 8570 compliant (IAT Level 2) by security indoctrination.

Responsibilities

• Provides technical expertise to ensure network systems meet DIA C&A and IA requirements and are properly certified.
• Responsibilities are full-time on customer's onsite; no telework.
• Designs, develops, and recommends integrated security systems to protect data.
• Supports RMF A&A process to obtain/maintain IATT, ATC, and ATO.
• Assists in incident response and remediation efforts as needed.
• Collaborates with stakeholders to align security with organizational goals.
• Develops test plans to assess security posture and validates controls.

Skills

Windows administration

Linux proficiency

Powershell scripting

Security tools knowledge

On-site security operations

Education

Bachelor's degree in a relevant field

4 years of relevant experience in lieu of degree

8570 compliance (IAT Level 2) by security indoctrination

Tools

ACAS

Trellix

Splunk

STIGs

Job description

DAn Solutions in Reston, VA seeks a Sr. ISSE with active TS/SCI clearance and CI poly to support classified programs onsite. You will ensure DIA C&A and IA compliance, design secure systems, and assist in RMF-based authorization tasks across the lifecycle.

The role requires advanced Windows and Linux skills, hands-on security tool experience, and compliance with 8570 IAT Level 2. On-site work only, with no telework.