Principal Cybersecurity Engineer

About the role

• General information
• Requisition #
• R71433
• Locations
• USA-VA-Chantilly, USA-AZ-Chandler
• Posting Date
• 10/21/2026
• Security Clearance Required
• Secret
• Remote Type
• Onsite
• Time Type
• Full time

Description & Requirements

• Unlock the secrets of intelligence with MANTECH!
• Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies.
• Since 1968, we’ve been solving the toughest challenges with groundbreaking tech.
• Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development.
• Elevate your career and make a difference.
• Your adventure begins now—unleash your potential with MANTECH!

• *This is for a future opportunity*
• MANTECH seeks a motivated, career, and team-oriented
• Principal Cybersecurity Engineer to support a major federal homeland security program in
• Washington, DC or
• Chandler, AZ.

As part of this mission, you will serve as a senior technical authority driving enterprise-wide threat defense, operational resilience, and advanced security analytics. This is a unique opportunity to mature security operations for a large-scale federal SOC, leveraging continuous threat exposure models, zero trust principles, and next-generation security automation.

Key Responsibilities

• Implement, optimize, and tune comprehensive offensive and defensive security capabilities across complex, enterprise-scale environments.
• Lead end-to-end incident handling, including scoping, timeline reconstruction, root cause analysis, and impact assessment across cloud, network, endpoint, and mobile infrastructures.
• Perform static and dynamic malware reverse engineering (sandboxing, code analysis) to extract Indicators of Compromise (IOCs) and analyze C2 infrastructure.
• Align security architecture, detection tools, and incident telemetry with MITRE ATT&CK and D3FEND frameworks.
• Correlate digital forensics findings with threat intelligence, SOC alerts, and adversary Tactics, Techniques, and Procedures (TTPs).
• Provide expert guidance on network security architecture, operating system hardening, and multi-cloud security posture management.

Minimum Qualifications

• Bachelor’s Degree in Cybersecurity, Computer Science, Information Technology, or a related field.
• Minimum of 5 years of specialized cybersecurity experience in enterprise or federal SOC environments.
• Must hold at least
• ONE primary certification: CISSP (or Associate), CCSP, SSCP, GMON, GCIH, GCIA, CEH, or CASP+.
• Must hold at least
• ONE secondary certification from the DoD 8140 CSSP Analyst, Infrastructure Support, or Incident Responder list.
• Demonstrated hands-on experience with security event correlation tools, digital forensics, and binary analysis.

Preferred Qualifications

• Master’s Degree in a technical discipline.
• Direct experience supporting federal cyber defense operations (DHS, DoD, or IC).
• Practical knowledge of Zero Trust Architecture (ZTA) implementation and cloud-native security controls.

Clearance Requirements

• Active Secret Clearance required; must be eligible to obtain and maintain a Top Secret/SCI Clearance.
• Must be a U.S. Citizen and able to obtain and maintain agency suitability/EOD prior to starting.

Physical Requirements

• 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 and customers.

Pay and benefits

The projected compensation range for this position is $148,200.00-$263,000.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories.

In addition, MANTECH invests in its employees beyond just compensation. MANTECH’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

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