Defensive Cybersecurity Operations Specialist

General information

Requisition #

R69971

Locations

USA-FL-Doral

Posting Date

08/11/2026

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 Defensive Cybersecurity Operations Specialist to join our team in Doral, FL.

Responsibilities include but are not limited to:

• Develops and implements a comprehensive defensive cybersecurity strategy aligned with industry best practices (e.g., NIST Cybersecurity Framework, CIS Controls). This includes defining security architecture, selecting security tools, and establishing Incident Response Plans.
• Proactively monitors threat landscapes, analyzes threat intelligence, and conducts threat hunting activities to identify and mitigate potential threats before they can impact the organization. They also oversee the organization's Security Information and Event Management (SIEM) system and other security monitoring tools.
• Assists leadership in managing incident response efforts, including containment, eradication, recovery, and post-incident analysis. This includes developing and maintaining incident response playbooks. They also establish and manage a thorough vulnerability management program, including regular vulnerability scanning, penetration testing, and remediation tracking.
• Contributes to the design and implementation of secure IT architectures and evaluates and recommends security solutions to address identified vulnerabilities and improve security posture. They also develop and deliver security awareness training programs to educate employees about cybersecurity best practices and promote a security-conscious culture.
• Provides technical expertise and mentorship to other members of the Security Team, fosters a collaborative and high-performing team environment.
• Ensure compliance with relevant industry regulations and security frameworks (e.g., HIPAA, PCI DSS, GDPR) and support internal and external audits related to cybersecurity.

Minimum Qualifications:

• BA/BS degree in Computer Science, Cybersecurity or a related field. Four (4) years of additional relevant experience may be substituted in lieu of degree.
• Five (5) or more years experience in a Defensive Cyber Operations focused position for example incident response analyst, defensive cyber operations planner or cyber defense analyst.
• Deep understanding of cybersecurity concepts, principles, and best practices.
• Extensive experience with security monitoring tools (e.g., SIEM, IDS/IPS), vulnerability management tools, and incident response methodologies. Strong knowledge of network security, endpoint security, and cloud security.
• Experience with threat intelligence platforms and threat hunting techniques.
• Familiarity with relevant industry regulations and security frameworks (e.g., NIST, CIS, ISO 27001).

Desired Qualifications:

• Master's degree in Computer Science, Cybersecurity, or a related field.
• Experience with scripting languages (e.g., Python, PowerShell), cloud security platforms (e.g., AWS, Azure, GCP), and DevSecOps practices. Relevant certifications (e.g., CISSP, CISM, SANS GIAC).
• Experience at a DoD Combatant Command (e.g., SOUTHCOM, NORTHCOM, CENTCOM, CYBERCOM, INDOPACOM, EUCOM, AFRICOM, STRATCOM, TRANSCOM, SOCOM, SPACECOM) or a component is desired.

Clearance Requirements:

• Must have a current/active Secret security clearance
• Must be eligible to obtain and maintain a TS/SCI security clearance

Physical Requirements:

• The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.

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.