About the role
Job Family: IT Cyber Security Travel Required: None Clearance Required: Active Top Secret (TS) What You Will Do: Our Cybersecurity Consultants are a team of business integrators with extensive consulting and industry experience who help our clients solve their complex business issues from strategy through execution. A career in an integrated team of developers and consultants provides the opportunity to grow and contribute to our clients' business issues every day, applying a collection of security spectrum capabilities, including security strategy and governance, IT risk, security technologies, and cybercrime and breach response. We are seeking a highly experienced Senior Information System Security Officer (ISSO) – to support a major federal initiative. The ISSO serves as a technical and compliance lead, guiding system owners, engineers, and security teams through RMF, ATO, and continuous monitoring activities. This role is responsible for interpreting policy, providing authoritative security guidance, leading audits, and evaluating complex systems across hybrid cloud and on‑premises environments. The ISSO will mentor junior staff and ensure that systems maintain full compliance with federal
requirements, NIST security controls, and agency‑specific governance.
Responsibilities include, but are not limited to: Lead the implementation, assessment, and enhancement of NIST 800‑53 security controls across cloud, hybrid, and on Prem environments. Oversee RMF and ATO package development, review, and approval processes, including SSPs, IRPs, ISCPs, CMPs, and POA&Ms. Serve as a senior security advisor to system owners, program leadership, and regulatory bodies. Lead internal and external audit preparation, documentation, artifact collection, and response strategies. Conduct advanced risk assessments, architecture reviews, and system security analyses. Guide POA&M management and direct the remediation of vulnerabilities identified via ACAS, STIG, SCAP, and agency‑specific scans. Support continuous monitoring programs, change control reviews, and ongoing security lifecycle management. Mentor Junior and Mid‑Level ISSOs; contribute to process standardization and governance improvements. Review emerging threats and provide security recommendations to align systems with evolving federal and agency