Senior Information System Security Engineer

General information

Requisition # R62376 Locations USA-FL-Doral Posting Date 08/06/2025 Security Clearance Required TS/SCI Remote Type Onsite Time Type Full time

Description & Requirements

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 System Security Engineer (ISSE) join our team in Doral, FL.
 

Responsibilities include but are not limited to:

• The Senior Information System Security Engineer (ISSE) is responsible for conducting comprehensive security assessments, including Federal Information Security Management Act (FISMA) reviews, to identify vulnerabilities and ensure compliance with relevant security standards and regulations

• Lead and conduct comprehensive security assessments of information systems, applications, and infrastructure, including FISMA reviews

• Evaluate the effectiveness of security controls and identify vulnerabilities, analyze security risks, and provide recommendations for mitigation

• Develop and maintain security assessment methodologies and tools, and ensure compliance with FISMA requirements and guidelines; develop and maintain FISMA documentation, including System Security Plans (SSP), risk assessments, and Continuous Monitoring Plans

• They conduct FISMA audits and assessments, and provide guidance and support to system owners on FISMA compliance

• They prioritize vulnerabilities based on risk and impact, and develop and implement remediation plans; track and report on vulnerability remediation progress; review and evaluate security architecture designs

• Provide security guidance and recommendations to Architects and Engineers

• They ensure that security controls are integrated into system designs

• The Senior Information System Security Engineer (ISSE) provides direction and mentorship to subordinate staff

Minimum Qualifications:

• BA/BS in field necessary to assume Senior Information System Security Engineer (ISSE) duties or 4 additional years of experience in lieu of a degree

• 9+ years of experience with 5+ years of relevant Senior Information System Security Engineer (ISSE) experience

• Strong understanding of security frameworks, standards, and regulations, such as NIST, ISO 27001, and FISMA.

• Experience conducting vulnerability assessments and penetration testing.

• Knowledge of security technologies, such as firewalls, intrusion detection/prevention systems, and security information and event management (SIEM) tools.<