Senior Security Analyst - ATO / RMFAWS Professional Services

Location: Chantilly, VA
Work Type: 100% Onsite - Secure Facility
Employment Type: Full-Time
Citizenship: U.S. Citizenship required
Clearance:Active TS/SCI required; CI Polygraph preferred but not required
Certification: Active Security+ or higher (IAT Level II/III) required

The Opportunity

This is a hands-on cybersecurity role supporting technology partners and government customers throughout the Authority to Operate (ATO) and Risk Management Framework (RMF) lifecycle. You'll work directly with customers to understand their technologies, develop security documentation, assess vulnerabilities, implement and document security controls, manage POA&Ms, and help move cloud-based solutions successfully through authorization.

The goal is straightforward: help technology providers navigate the government security authorization process faster while maintaining the security and compliance required for mission environments.

If you have experience developing ATO packages, understand RMF, and enjoy working directly with customers to solve cybersecurity and compliance challenges, this is a strong fit.

What You'll Be Doing

• Support customers through the complete ATO and RMF lifecycle
• Develop and maintain ATO security packages and authorization documentation
• Write clear technical documentation describing how systems are configured, secured, and operated
• Work across the RMF lifecycle, including Categorize, Select, Implement, Assess, Authorize, and Monitor
• Assess security controls against NIST 800-53 requirements
• Analyze STIG and SCAP requirements and document compliance
• Review vulnerability scans and identify security weaknesses within customer environments
• Interpret results from tools such as Tenable Nessus, Checkmarx, and Fortify
• Develop, manage, and update Plans of Action & Milestones (POA&Ms)
• Track vulnerabilities through remediation, mitigation, or risk acceptance
• Identify and help customers remediate open-day vulnerabilities
• Evaluate configuration changes and their impact on the security posture of enterprise cloud solutions
• Recommend mitigating controls and security countermeasures
• Support continuous monitoring following authorization
• Maintain security documentation as customer environments and requirements evolve
• Explain security-control inheritance models and associated resources
• Prepare documentation for system audits and vulnerability assessments
• Communicate cybersecurity risk and remediation recommendations to technical teams and senior leadership

Customer & Technical Delivery

This role involves more than developing security documentation. You'll work directly with SBS technology partners and government customers to help move their solutions through the authorization process.

You'll be expected to:

• Lead technical discussions with customers and technology partners
• Understand customer systems, architectures, and business requirements
• Translate technical environments into appropriate security controls and authorization requirements
• Advise customers on security best practices and required remediation
• Identify technical and cybersecurity risks and recommend mitigation strategies
• Participate in project planning and identify risks, dependencies, and deliverables
• Develop project artifacts and support Work Breakdown Structures (WBS)
• Communicate project status, risks, and technical requirements to project leadership
• Provide guidance and technical leadership to customers and less-experienced security staff

What We're Looking For

ATO / RMF Experience

• Hands-on experience supporting and/or managing ATO packages for cloud-based products
• Experience supporting solutions used by U.S. government agencies and/or military organizations
• Strong experience with ATO writing, security documentation, and package development
• Hands-on knowledge of the Risk Management Framework (RMF)
• Understanding of all RMF lifecycle steps
• Experience assessing security controls against NIST 800-53
• Experience developing and managing POA&Ms
• Ability to understand and explain security-control inheritance

Vulnerability & Compliance Management

• Experience identifying and mitigating open-day vulnerabilities
• Experience reviewing and interpreting vulnerability scans
• Knowledge of STIGs and SCAP
• Experience with vulnerability and application-security tools such as Tenable Nessus, Checkmarx, Fortify, or similar platforms
• Ability to recommend appropriate countermeasures and mitigating controls
• Experience supporting continuous monitoring and compliance reporting

Cloud Security

• Experience assessing the security posture of cloud-based environments and products
• Understanding of cloud security controls, configurations, and compliance requirements
• Ability to evaluate configuration changes and determine their potential security impact
• Familiarity with firewalls, network security, and intrusion detection systems (IDS) in cloud environments is preferred

Customer-Facing Skills

• Strong technical writing and documentation skills
• Ability to explain cybersecurity risks and requirements to both technical and non-technical stakeholders
• Comfortable leading customer meetings and technical discussions
• Ability to translate cybersecurity findings into actionable remediation recommendations
• Self-motivated and comfortable working within a small, agile technical team

Security & Certifications

• Active TS/SCI clearance required
• CI Polygraph preferred but not required
• Active Security+ or higher IAT Level II/III certification required
• CISSP or similar information security certification preferred
• Cloud security or platform certifications are a plus
• Bachelor's degree preferred

COMPENSATION & BENEFITS

SBS offers a comprehensive total-rewards package, including a market competitive salary along with:

• Comprehensive medical, dental, and vision coverage; HSA-eligible plan options available

• 401(k) retirement plan with company match (vesting schedule per Plan Document)

• Paid Time Off, federal holidays, and floating holiday for personal observance

• Annual professional development support for AWS certifications, training, and conferences

• Employee referral program where applicable and documented by program policy

• Life, AD&D, and short- / long-term disability insurance

• Telework and flexible-schedule support where mission and contract permit

• Mission-focused federal contractor supporting national-security customers

Target Salary Range: $140,000-195,000. This range reflects the anticipated compensation for this role. Actual salary will be based on a combination of factors, including the position's scope and level of responsibility, the candidate's relevant experience, education, technical expertise, skills and qualifications, geographic location, and applicable business or contractual requirements.