Sr Cyber Engineer (ISSE

Accelint is a mission-driven technology company focused on strengthening national security and supporting critical industries. We build the technologies that help operators and organizations see what’s happening, make faster and better decisions, take action with confidence, and stay ready for what comes next. Our work includes advanced sensors, autonomous systems, mission command and control software, AI‑enabled training and simulation, and tools that improve logistics, maintenance, and overall readiness.

For nearly 30 years we have supported military and civilian agencies across the Department of Defense, U.S. allies and partners, and essential industries. When you join Accelint, your work directly contributes to protecting national security and strengthening the systems our society depends on.

We are seeking an Information Systems Security Engineer (ISSE)/Cybersecurity Engineer to support Risk Management Framework (RMF), cybersecurity engineering, Assessment & Authorization (A&A), vulnerability management, and compliance activities across multiple Department of the Navy (DON) systems and programs. This position will serve as a key cybersecurity advisor to program leadership, engineers, Information System Security Managers (ISSMs), and stakeholders throughout the system lifecycle to ensure systems achieve and maintain authorization while meeting cybersecurity requirements.

The ideal candidate will possess extensive experience with RMF implementation, cybersecurity engineering, vulnerability assessments, accreditation activities and compliance management within Department of Defense (DoD) environments. This role requires the ability to coordinate across multiple technical teams, manage authorization schedules, evaluate system architectures, and provide cybersecurity expertise through all system development, testing, deployment, and sustainment activities.

• Serve as the Information Systems Security Engineer (ISSE) supporting Risk Management Framework (RMF), Assessment & Authorization (A&A), cybersecurity compliance, and continuous monitoring activities throughout the system lifecycle for DoD programs and systems.
• Develop, maintain, and assess cybersecurity policies, procedures, security documentation, authorization artifacts, and compliance records in accordance with NIST, DoD, NAVWAR, and CNSSI requirements, leveraging tools including eMASS, VRAM, DADMS, and DITPR-DON.
• Conduct cybersecurity risk assessments, vulnerability analyses, security control evaluations, and remediation activities; support IAVM compliance, ACAS scanning, deficiency tracking, corrective action planning, and continuous authorization readiness.
• Collaborate with program managers, ISSMs, engineers, development teams, test organizations, and government stakeholders to integrate cybersecurity requirements into system design, development, testing, configuration management, and operational planning activities.
• Evaluate COTS, GOTS, open-source technologies, Cross Domain Solutions (CDS), PPSM requirements, and engineering changes to determine cybersecurity impacts, authorization requirements, and compliance with RMF and security control standards.
• Coordinate RMF schedules, security assessments, technical baseline reviews, modernization initiatives, and lifecycle cybersecurity activities while providing status reporting, risk mitigation recommendations, and accreditation support to leadership and program stakeholders.

• Bachelor’s degree in Cybersecurity, Information Assurance, Information Technology, Computer Science, Engineering, or a related technical field.
• Minimum of 8+ years of cybersecurity, RMF, information assurance, or cybersecurity engineering experiences supporting DoD or Federal programs.
• Lead Information Systems Security Engineering (ISSE) and Risk Management Framework (RMF) activities across the system lifecycle, including system categorization, security control implementation, Assessment & Authorization (A&A), continuous monitoring, and accreditation support.
• Develop, maintain, and review cybersecurity policies, procedures, CONOPS, SOPs, authorization packages, and compliance documentation while ensuring alignment with DoD, NIST, NAVWAR, and Information Assurance requirements.
• Conduct cybersecurity risk assessments, vulnerability analyses, security control evaluations, and remediation planning; manage vulnerability tracking and compliance activities using tools and repositories including eMASS, VRAM, ACAS, DADMS, and DITPR-DON.
• Collaborate with program managers, ISSMs, engineers, development teams, and assessment organizations to integrate cybersecurity requirements into system design, testing, configuration management, and operational planning activities.
• Coordinate security assessments, authorization schedules, corrective action plans, and compliance milestones, providing regular status updates and recommendations to program leadership and government stakeholders.
• Evaluate COTS, GOTS, and…