Information Systems Security Engineer All Levels

Secure the Systems That Matter: Join us as an Information Systems Security Engineer!At Adaptic, our ISSEs don't just check compliance—they design, engineer, and strengthen the security of mission-critical systems. Supporting the DoD and Intelligence Community, you'll help ensure systems are resilient, compliant, and built to withstand evolving threats.Whether you're early in your career or leading security engineering efforts, we're looking for Information Systems Security Engineers at all levels who understand how to balance security, performance, and mission needs._Your Impact _You'll work across the system lifecycle—design, assessment, authorization, and sustainment—ensuring security is built in from the ground up. Day-to-day, that can look like:Performing and reviewing security assessments of complex systems and environmentsDesigning and integrating secure system, network, and enclave architecturesApplying RMF and other risk frameworks to support system authorization and complianceDeveloping and maintaining security documentation (e.g., SSPs, RMF artifacts, ATO packages)Identifying vulnerabilities and recommending mitigation strategiesSupporting security planning, risk analysis, and system hardening effortsEnsuring compliance with NIST, NSA, and DoD security policies and standardsCollaborating with system engineers, network engineers, and program teams to implement secure solutionsSupporting continuous monitoring and ongoing system security improvementsAdvising stakeholders on security requirements, trade-offs, and best practices_Qualifications _All positions require an active TS/SCI with polygraphExperience in information systems security engineering, cybersecurity, or related rolesStrong understanding of RMF and security frameworks (e.g., NIST 800-37, 800-53)Experience developing or supporting security documentation and authorization processesFamiliarity with system hardening, vulnerability management, and compliance toolsAbility to communicate security concepts clearly across technical and non-technical teamsA degree in Computer Science, Information Assurance, Cybersecurity, or a related field (or equivalent experience)_Nice to Have _DoD 8570/8140 compliance (e.g., CISSP, CASP+, CAP, or similar certifications)Experience with tools such as Nessus, STIG Viewer, SCAP Compliance Checker, or XactaExperience supporting ATO processes or continuous monitoring programsFamiliarity with system architecture, networking, or cloud environmentsExperience supporting mission or operational environments within the IC/DoDEngineer security. Reduce risk. Apply now to learn more about our extensive benefits and customizable compensation packages.