On-Site Cybersecurity Lead — Top Secret Clearance Required

Private Company, LLP; Arlington (VA); On-site; USD 190,000 - 230,000; Full time

Job summary

Private Company, LLP is seeking a Cybersecurity Lead with CISO potential to act as a hands-on builder, problem solver, and effective communicator. The role requires pivoting between risk mitigation, incident response, and driving compliance initiatives across federal requirements.

The position is on-site with five days in the Arlington office and eligibility for Top Secret clearance. You will collaborate with executives, guide secure architectures, and lead program teams to align security with

Qualifications

• Active TS/SCI clearance or ability to obtain.
• Bachelor’s degree or equivalent experience.
• 10+ years of progressive cybersecurity experience.
• Experience in a government contracting environment.
• Strong knowledge of NIST frameworks, RMF, and federal compliance requirements.
• Hands-on experience with network, cloud, and endpoint security.
• Ability to operate independently without direct reports, and execute the responsibilities with a hands-on approach.
• Excellent communication and stakeholder engagement skills.

Responsibilities

• Serve as the organization’s senior authority on cybersecurity and advise executive leadership on risk and strategy
• Develop, implement, and maintain enterprise-wide security policies, standards, and controls
• Ensure compliance with NIST 800-53, NIST 800-171, CMMC, CMMI, ISO 9K, ISO 20K, ISO 27K, RMF, and other federal requirements
• Manage Authority to Operate (ATO) processes and interface with auditors and assessors
• Conduct risk assessments, vulnerability analysis, and risk mitigation activities
• Oversee incident response planning and execution
• Review proposed system architectures to ensure "Security by Design"
• Guide secure architecture across network, cloud, and endpoint environments
• Collaborate with program teams and support security requirements for proposals

Skills

Hands-on security

Executive communication

Threat assessment

Stakeholder engagement

Education

Bachelor’s degree or equivalent experience

Tools

NIST RMF

ISO 27001

CMMC

Job description

Private Company, LLP is seeking a Cybersecurity Lead with CISO potential to act as a hands-on builder, problem solver, and effective communicator. The role requires pivoting between risk mitigation, incident response, and driving compliance initiatives across federal requirements.

The position is on-site with five days in the Arlington office and eligibility for Top Secret clearance. You will collaborate with executives, guide secure architectures, and lead program teams to align security with