Security Control Assessor (SCA)

Oakton, VA

The Security Control Assessor (SCA) plays a critical role in evaluating and validating the implementation of security controls for information systems within the organization. In addition to core SCA responsibilities, this position emphasizes proactive customer engagement and serves as a key liaison between system owners and security stakeholders. This position primarily serves as a strategic bridge between mission stakeholders and security teams to expedite approvals and ensure alignment with agency policies. The ideal candidate understands security governance, policy, and risk posture and can translate technical requests into compliant, risk-informed recommendations. This role ensures technical and policy alignment through strong communication, 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
  • Associates 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)
• US. Citizen with active TS/SCI clearance
• Successfully pass background and drug screening

Knowledge, Skills, and Abilities:

• 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

How you’ll grow  

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 help 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.  

Benefits  

At Chenega MIOS, we know that great people make a great organization. We value our team members and offer them a broad range of benefits.  

Learn more about what working at Chenega MIOS can mean for you.  

Chenega MIOS’s culture  

Our positive and supportive culture encourages our team members to do their best work every day. We celebrate individuals by recognizing their uniqueness and offering them the flexibility to make daily choices that can help them be healthy, centered, confident, and aware. We offer well-being programs and continuously look for new ways to maintain a culture where we excel and lead healthy, happy lives.  

Corporate citizenship  

Chenega MIOS is led by a purpose to make an impact that matters. This purpose defines who we are and extends to relationships with our clients, our team members, and our communities. We believe that business has the power to inspire and transform. We focus on education, giving, skill-based volunteerism, and leadership to help drive positive social impact in our communities.  

Learn more about Chenega’s impact on the world.  

Chenega MIOS News- https://chenegamios.com/news/  

Tips from your Talent Acquisition Team  

We want job seekers exploring opportunities at Chenega MIOS to feel prepared and confident. To help you with your research, we suggest you review the following links:  

Chenega MIOS web site - www.chenegamios.com  

Glassdoor - https://www.glassdoor.com/Overview/Working-at-Chenega-MIOS-EI_IE369514.11,23.htm  

LinkedIn - https://www.linkedin.com/company/1472684/  

Facebook - https://www.facebook.com/chenegamios/ 

#Chenega Systems, LLC