Security Control Assessor; SCA

Security Control Assessor (SCA)

Oakton, VA

Are you ready to enhance your skills and build your career in a rapidly evolving business climate? If so, Chenega Military, Intelligence & Operations Support (MIOS) could be the place for you! Join our team of professionals who support large‑scale government operations by leveraging cutting‑edge technology and take your career to the next level.

The Security Control Assessor (SCA) plays a critical role in evaluating and validating the implementation of security controls for information systems within the organization. This position emphasizes proactive customer engagement and serves as a key liaison between system owners and security stakeholders, acting as a strategic bridge between mission stakeholders and security teams to expedite approvals and ensure alignment with agency policies.

The role supports the Authorization & Accreditation (A&A) process and helps maintain momentum across mission initiatives with security implications.

• Act as the primary security liaison for IT and mission teams seeking to initiate, modify, or approve systems and activities with security implications
• Guide customer requests through the A&A and RMF processes, ensuring compliance with all applicable policies and frameworks (e.g., CNSSI, NIST SP 800‑53)
• Interpret and communicate security policies, SOPs, and agency processes to facilitate alignment and reduce approval delays
• Assist in obtaining AFT approvals, submitting exceptions or deviations, and resolving one‑off security requests
• Work with ISSMs, AOs, and engineering teams to explain risk mitigation strategies, support risk acceptance discussions, and balance mission value with risk profiles
• Provide day‑to‑day support for security‑related activities and initiatives that require deeper analysis or coordination
• Review technical requests and assess their security implications; help package materials for review boards or approval bodies
• Track status of open requests, RMF packages, and associated documentation
• Help mature internal processes to streamline recurring or high‑friction security tasks
• Other duties as assigned

• Bachelor’s degree in a related field OR
• Associate’s degree with an additional 2+ years of relevant IT experience OR
• High school diploma or GED equivalent with an additional 4+ years of directly related IT experience in lieu of a degree
• 5+ years of experience in cybersecurity compliance, RMF support, or system accreditation
• Must hold a current DoD 8140 (or 8570) baseline certification at the IAM Level II or higher (e.g., CAP, CISSP)
• U.S. Citizen with active TS/SCI clearance

• Working knowledge of the RMF process, NIST SP 800‑53 controls, and agency‑specific A&A policies
• Experience interacting with security stakeholders, such as ISSMs, AOs, or security governance teams
• Ability to communicate security requirements clearly to technical and non‑technical personnel
• Familiarity with submitting or managing AFTs, POA&Ms, security exception requests, and waiver packages
• Understanding of cybersecurity risk evaluation and mitigation principles
• Strong documentation and coordination skills; comfortable managing multiple ongoing efforts simultaneously
• Professional demeanor with a customer service‑oriented mindset and attention to detail

At Chenega MIOS, our professional development plan focuses on helping our team members at every level of their careers to identify and use their strengths to do their best work every day. From entry‑level employees to senior leaders, we believe there’s always room to learn. We offer opportunities to sharpen skills in addition to hands‑on experience in the global, fast‑changing business world.

From on‑the‑job learning experiences to formal development programs, our professionals have a variety of opportunities to continue to grow throughout their careers.