Explore senior system information assurance and security engineer jobs and discover a critical career at the intersection of cybersecurity strategy and hands-on technical implementation. Professionals in this high-stakes role are the architects and guardians of an organization's cyber defense posture, specializing in designing, implementing, and managing comprehensive security frameworks that protect sensitive data and critical infrastructure. Typically found within government, defense, and large enterprise sectors, these senior engineers translate high-level security policies into operational reality, ensuring systems are resilient against evolving threats. The core mission of a Senior System Information Assurance and Security Engineer is to embed security into the fabric of IT systems. This involves a blend of strategic governance and deep technical execution. Common responsibilities include developing and enforcing system security plans in accordance with established frameworks like the Risk Management Framework (RMF), NIST standards, and Zero Trust principles. They lead the implementation of cornerstone security technologies such as Privileged Access Management (PAM) to enforce least-privilege and just-in-time access, and Identity, Credential, and Access Management (ICAM) solutions to govern user identities and authentication. A significant part of the role is achieving and maintaining Authority to Operate (ATO) for systems by meticulously implementing security controls, producing required documentation like System Security Plans (SSPs), and managing continuous monitoring processes. On a technical level, these engineers integrate complex security tools—such as SIEM platforms, identity governance systems, and multi-factor authentication solutions—into a cohesive ecosystem. They design secure architectures for both cloud and on-premises environments, conduct vulnerability assessments, and respond to security incidents. The role demands constant collaboration with other IT and cybersecurity teams to ensure security measures align with business objectives and do not impede operational efficiency. Candidates for senior system information assurance and security engineer jobs typically possess a bachelor’s or master’s degree in cybersecurity, computer science, or a related field, coupled with extensive professional experience—often 8-10+ years—in cybersecurity or systems engineering. Industry certifications are paramount, including DoD 8570/8140 compliant certifications like Security+ CE, CISSP, or CISM for IAT/IAM Level II or III roles. Essential skills include deep expertise in security frameworks (RMF, NIST), proficiency with PAM and IGA tools, strong scripting abilities for automation, and a thorough understanding of network protocols and cloud security. For many positions, particularly those supporting national security, eligibility for a high-level government security clearance is a standard requirement. This career path is ideal for analytical problem-solvers who seek to impact enterprise-wide security and thrive in environments where rigor, compliance, and technical excellence are non-negotiable.
