Compliance / Security Engineer TS SCI

How We're Different

We believe the highest-impact work in national security and technology is a team sport. At Aperio Global, we operate as a single, cohesive force aligned on a handful of mission-critical efforts where our work truly moves the needle. We don't chase small wins. We solve for next.

We view the intersection of cybersecurity, artificial intelligence, and data analytics as an empirical discipline as rigorous and consequential as any field in science or engineering. That means we bring intellectual honesty, accountability, and transparency to every problem we take on. Our team includes tech innovators, Intelligence Community veterans, and security professionals who know that the best solutions come from diverse minds working toward a common mission. We value our people, those working quietly behind the scenes, doing the hard work that keeps our nation secure.

The best way to understand how we think is to see what we've built. From full-spectrum cyber operations and de-biased AI platforms to quantum networking and cloud-native software systems, our work speaks for itself.

Come solve with us

We offer competitive compensation and a comprehensive benefits package — including medical, dental, and vision coverage, a 401(k) retirement plan, life insurance, generous paid time off, short and long-term disability, professional development, and much more. We invest in our people because they are our most important asset — and because the mission demands the best.

We are seeking a highly experienced Compliance / Security Engineer to lead Authorization to Operate (ATO) and Interim Authority to Test (IATT) workstreams within a high-security DoD program environment. This dedicated role is embedded directly with the program team and requires an expert-level practitioner capable of operating across classification boundaries. The ideal candidate brings deep practical experience operationalizing security frameworks in deployed, classified environments.

• Lead end-to-end ATO and IATT workstreams, coordinating with government stakeholders, ISSOs, and program leadership to ensure timely authorization milestones.
• Operationalize DISA STIGs across system components; develop and maintain STIG checklists, deviation requests, and risk acceptance documentation.
• Map security controls to deployment architectures, ensuring continuous compliance alignment with NIST RMF steps (Categorize → Authorize → Monitor).
• Design and support Cross-Domain Solutions (CDS) implementations; liaise with accreditation authorities for cross-domain data transfer approvals.
• Develop, review, and maintain System Security Plans (SSP), Security Assessment Reports (SAR), Plans of Action & Milestones (POA&M), and related RMF artifacts.
• Conduct continuous monitoring activities and coordinate vulnerability remediation with engineering teams.
• Interface directly with DISA and other DoD oversight bodies throughout the authorization lifecycle.
  
  

REQUIRED:

• Active TS/SCI clearance (no exceptions).
• 5 years of hands-on experience leading ATO/IATT workstreams in DoD or IC environments.
• Expert-level knowledge of NIST Risk Management Framework (RMF) — SP 800-37, SP 800-53, and related publications.
• Demonstrated experience operationalizing DISA STIGs across Linux, Windows, and network infrastructure.
• Working knowledge of Cross-Domain Solutions (CDS) architecture, accreditation, and operational requirements.
• Proficiency with eMASS or equivalent DoD authorization tools.
  
  

NICE TO HAVE:

• CISSP, CAP (Certified Authorization Professional), or equivalent DoD 8570/8140 IAM Level III certification.
• Experience supporting DISA programs or working within the DISA RMF process directly.
• Familiarity with cloud-based deployment environments (AWS GovCloud, Azure Government) and associated security frameworks.
• Experience with zero-trust architecture concepts and implementation in classified environments.
  
  

Salary Range; 200k-220k

Benefits

At Aperio Global, we understand the value of investing in our most important asset—our employees. That's why we have crafted a comprehensive benefits package designed to help you make the best decision for yourself, your family and your lifestyle. For additional details, contact our talent acquisition team.

• Health Care Plan (Medical, Dental & Vision)
• Retirement Plan (401k, IRA) with 100% employer match up to 6%
• Life Insurance (Basic, Voluntary & AD&D)
• Paid Time Off (Vacation, Sick & Public Holidays)
• Short Term & Long Term Disability
• Professional Development
• (and much more)
  
  

Aperio Global is an equal opportunity employer. We are committed to building an inclusive workforce where all employees and applicants are treated with respect and fairness. Employment decisions are based solely on qualifications, merit, and business needs — never on race, color, religion, sex, national origin, age, disability, genetic information, military or veteran status, pregnancy/childbirth, sexual orientation, gender identity, marital status, ethnicity, or any other characteristic protected by applicable federal, state, or local law.