Information Systems Security Engineer at ManTech in USA-IN-Crane
- Company: ManTech
- Location: USA-IN-Crane
- Posted: Sep 17, 2026
- Type: Full-time
- Experience: 10+ years
Overview
Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities…
Job description
- Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with MANTECH!
- MANTECH seeks a motivated, career and customer-oriented Senior Information Systems Security Engineer to join our team working in Crane, IN. This is an onsite position.
Responsibilities
- Systematically integrates security functional requirements into system acquisition, engineering, and development phases.
- Harden application interfaces, data repositories, and cloud environments using systems engineering methodologies.
- Prepare, review, and maintain system security documentation under the Risk Management Framework (RMF), including SSPs, SAPs, SARs, and POA&Ms.
- Support system certification activities to secure and maintain an Interim Authority to Test (IATT) and Authority to Operate (ATO).
- Acts as the primary technical security advisor/SME to Government stakeholders, program managers, and system engineering teams.
- Lead technical walkthroughs, security reviews, and participates in intelligence-community or industry-based technical working groups.
- Conduct threat modeling, vulnerability assessments, and analyzes security logs to proactively harden defenses against adversaries.
- Provide technical expertise to contain and mitigate real or potential system security incidents. Design and architect robust end-to-end security solutions for networks, databases, and enterprise systems.
- Incorporate Zero Trust principles, boundary protection, firewalls, and cryptographic controls to safeguard critical warfighting infrastructure.
Requirements
- Bachelors degree in Information Security, Systems Engineering or a related technical discipline or, a High School Diploma and 4+ additional years of experience as described above in lieu of degree
- 10+ years of progressive experience in system engineering, information assurance, or cybersecurity
- Must possess a SecurityX (previously known as CASP+) or CISSP certification
- U.S. Citizenship required and a current or active Secret clearance or ability to obtain an Interim Secret clearance prior to starting.
- Master’s degree in Computer Science, Computer Engineering, or related technical field
Skills
Required
- SecurityX (CASP+) or CISSP certification
- System engineering
- Information assurance
- Cybersecurity
- Risk Management Framework (RMF)
- Threat modeling
- Vulnerability assessment
- Security log analysis
- Zero Trust principles
- Boundary protection
- Firewalls
- Cryptographic controls