Senior Security Control Assessor

General information

Requisition #

R71794

Locations

USA-FL-Doral

Posting Date

11/05/2026

Security Clearance Required

Secret

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 Security Controls Assessor to join our team in Doral, FL.

Responsibilities include but are not limited to:

• Determines the effectiveness of security controls within Information Systems (IS), ensuring compliance and identifying vulnerabilities.
• Lead Mission Assurance (MA) activities that identify, assess, and reduce cyber-related risks to mission execution, critical capabilities, operational dependencies, and supporting information systems.
• Manage and maintain Mission Assurance Decision Support System (MADDS) data, ensuring mission dependencies, critical assets, risk information, assessments, and mitigation actions are accurately documented, current, and available to support leadership decision-making.
• Lead the identification, mapping, validation, and lifecycle management of Mission-Relevant Terrain in Cyberspace (MRT-C) and Key Terrain-Cyber (KT-C). Coordinate with mission owners, system owners, network operators, cybersecurity personnel, and other stakeholders to identify mission-critical systems, services, applications, infrastructure, dependencies, and cyber terrain.
• Rates the severity of weaknesses and recommends corrective actions, while overseeing Collateral, SCI, and SAP activities for sensitive information security. Oversee IS security program policy, specifically SAP network infrastructure integration, and assesses Risk Management Framework (RMF) methodologies in accordance with the Joint SAP Implementation Guide (JSIG).
• Advises ISO, IDO, PSO, and DAO/AO on security issues, evaluates authorization packages, and recommends authorization. Ensures security assessments are completed, prepares Security Assessment. Reports (SAR), assesses proposed changes to Authorization Boundaries, and creates Plans of Action and Milestones (POA&M) for identified weaknesses.

Minimum Qualifications:

• Bachelor's degree in cybersecurity, information technology, mathematics or a related field of study and Five (5) or more years of experience working as a Security Control Assessor or in a similar role.

• OR a master's degree in a related field of study and three (3) or more years of relevant experience.

• OR an associates degree and seven (7) or more years of relevant experience

• OR a high school diploma and nine (9) or more years of relevant experience

• DoD 8570.01-M IAT Level III or DoD 8570.01-M IAM Level III certification, for example Security+ or SecurityX.

• Experience supporting Mission Assurance activities, including mission dependency analysis, mission-based risk assessments, and the identification or management of MRT-C and KT-C.

Preferred Qualifications:

• Master's degree in Cybersecurity, Computer Engineering, Computer Science, or other closely related IT discipline.
• Experience with ServiceNow, Microsoft TechCenter, or Jira ticketing systems. Experience with military/diplomatic operations working within a J-6/G-6/S-6/A-6 Directorate or with Special Operations Forces (SOF) or the Department of State (DoS) leading and performing cybersecurity risk assessments for and across multiple commands, agencies, and regionally distributed locations in a Security Operations Center (SOC).
• Experience using MADDS and managing or maintaining Mission Assurance, MRT-C, KT-C, critical-asset, mission-dependency, or risk data within an authoritative system of record.
• Experience leading MRT-C and KT-C identification, mapping, validation, risk analysis, and mitigation activities across enterprise, joint, interagency, or geographically distributed environments.

Clearance Requirements:

• Must have an active Secret clearance

Physical Requirements:

• Must be able to remain in a stationary position 50%
• Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer
• The person in this position frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.