Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Principal Cybersecurity Engineer

$148.2k - $263k

ManTech International Corporation

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.

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.

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 View email address on click.appcast.io and provide your name and contact information.

#J-18808-Ljbffr

Vacancy posted 2 days ago
Similar jobs that could be interesting for youBased on the Principal Cybersecurity Engineer in Chantilly, Loudoun County, VA vacancy
  • $131.3k - $237.35k

    Leidos has a new and exciting opportunity for a Principal Cybersecurity Engineer in our Intel Sector's (IS) Analysis Solutions Business Area (ASBA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical... 
    Suggested
    Full time
    Immediate start
    Flexible hours

    Leidos

    McLean, VA
    4 days ago
  •  ...Job Title: Chief Cybersecurity Engineer Location: Chantilly, VA (Frequent travel to Springfield, VA) Clearance: Active TS/SCI required with ability to obtain Polygraph Overview Our client is seeking a Chief Cybersecurity Engineer to provide technical leadership... 
    Suggested
    Full time
    Contract work

    Oxford Global Resources

    Chantilly, Loudoun County, VA
    3 days ago
  • $95k - $245k

     ...defense and space exploration to biomedical engineering, lives often depend on the solutions we...  ...Summary:Draper is actively seeking a Principal Cyber Effects Engineer that will...  ...requirements.• Subject Matter Expert (SME) in cybersecurity, able to plan, design, and execute... 
    Suggested
    Full time
    Local area

    Draper Laboratory

    Reston, VA
    7 days ago
  •  ...defense, civil, and commercial markets.Principal Cyber EngineerNightwing provides technically...  ...challenges. The team comprises engineers of multiple disciplines including vulnerability...  ...new journey and shape the future of cybersecurity and intelligence together as part of... 
    Suggested
    Full time
    Relocation
    Relocation package

    Nightwing

    Sterling, VA
    3 days ago
  • $122k - $253k

     ...defense, civil, and commercial markets.Senior Principal Cyber EngineerCyber Offense and Defense Experts (CODEX) is seeking a cyber engineer to join our team to solve crucial cyber...  ...new journey and shape the future of cybersecurity and intelligence together as part of the... 
    Suggested
    Full time
    Relocation
    Relocation package

    Nightwing

    Sterling, VA
    3 days ago
  •  ...impacts our nation and improves lives. This is where your skills strengthen national security, cybersecurity, health, transportation, and citizen services. We’re a nonprofit engineering, applied research, and advanced technology organization working in the public interest.... 
    Work experience placement
    Internship
    Local area
    Remote work

    Mitre

    McLean, VA
    6 days ago
  • $184.8k - $277.2k

     ...the contracts be United States citizens (naturalized or native). Do you have a passion for security? The infrastructure cybersecurity engineering team is responsible for building, deploying and operating security tooling, as well as providing consulting to service... 
    Work at office
    Local area
    Remote work
    Home office
    Flexible hours

    HR Tech Job

    Reston, VA
    3 days ago
  • $167.2k - $300k

     ...Our team members have a strong background in cybersecurity, data analysis, AI and machine learning, and detection engineering. We use innovative tools and technologies to...  ...technical anchor for Active Defense. As a Principal Active Defense Engineer, you will set the technical... 
    Work at office
    Local area
    Remote work
    Home office
    Flexible hours

    Workday, Inc.

    Reston, VA
    3 days ago
  •  ...your skills strengthen national security, cybersecurity, health, transportation, and citizen services. We’re a nonprofit engineering, applied research, and advanced technology...  ...Threat Intelligence department is seeking a Principal Cyber Intelligence Engineer to join our... 
    Internship
    Local area

    Mitre

    McLean, VA
    4 days ago
  • $99k - $206k

     ...overcome the most advanced technical challenges. The team comprises engineers of multiple disciplines including vulnerability research,...  ...us as we embark on this new journey and shape the future of cybersecurity and intelligence together as part of the Nightwing team.... 
    Full time
    Relocation
    Flexible hours

    Nightwing

    Sterling, VA
    4 days ago
  • $132.5k - $231k

     ...is seeking an experienced, self-motivated System Architecture Engineer to join the National Security Program Office (NSPO). In this...  ...be responsible for assessing, defining, and establishing core cybersecurity guidelines, guardrails, and technical standards across all... 
    Full time
    Temporary work
    Part time
    Work experience placement
    Work at office
    Work from home
    Shift work
    3 days per week

    Verizon

    Ashburn, VA
    4 days ago
  •  ...impacts our nation and improves lives. This is where your skills strengthen national security, cybersecurity, health, transportation, and citizen services. We're a nonprofit engineering, applied research, and advanced technology organization working in the public interest.... 
    Work experience placement
    Internship
    Local area

    The MITRE Corporation

    McLean, VA
    4 days ago
  • $143.7k - $276.9k

     ...week. No relocation is offered.AT&T is seeking a Deputy Chief Engineer, Network to provide senior technical expertise supporting the...  ..., migration, and transition to operations.· Collaborate with cybersecurity teams to incorporate network security, segmentation, access... 
    Full time
    Temporary work
    For contractors
    Local area
    Relocation

    AT&T

    Chantilly, Loudoun County, VA
    3 days ago
  •  ...your skills strengthen national security, cybersecurity, health, transportation, and citizen services. We're a nonprofit engineering, applied research, and advanced technology...  ...environments. MITRE is seeking a highly technical Principal Cyber Operations Engineer - focusing on... 
    Work experience placement
    Internship
    Local area
    3 days per week

    The MITRE Corporation

    McLean, VA
    2 days ago
  • $150k - $250k

     ...An innovative technology company is seeking a Principal Reverse Engineer. In this role, you will lead interesting and complex security research initiatives focusing on hardware and software integrity. You will collaborate with other elite engineers to identify firmware... 
    Relocation

    Webster & Webster Associates

    Chantilly, Loudoun County, VA
    3 days ago
  •  ...Senior Principal Mission Engineer OASYS, INC., a Leading-Edge Government contractor, is seeking applicants for Senior Principal Mission Engineer to support our customer in Chantilly, VA. Summary Make a difference for national security by joining a team of... 
    Temporary work
    For contractors
    Flexible hours

    Oasys

    Chantilly, Loudoun County, VA
    4 days ago
  • $191.5k - $287.3k

    Principal Cloud IAM Engineer (US Federal)# Careers at Workday## Principal Cloud IAM Engineer (US Federal)Apply: Flex: USA.VA.Reston: Full Time...  ...with other teams in cloud engineering and the broader Cybersecurity organization in Workday Government as we work to build our... 
    Full time
    Work at office
    Remote work
    Home office
    Flexible hours

    Workday, Inc.

    Reston, VA
    2 days ago
  • $200k - $240k

     ...Location: Chantilly, VA, US Date Posted: 2026-09-24 Category: Engineering and Sciences Subcategory: Signal Engineer Schedule:...  ..._SITE Description SAIC is hiring a Senior Principal Radar Signals Engineer to join a mission-driven analysis team... 
    Full time
    Work at office
    Remote work
    Shift work

    SAIC

    Chantilly, Loudoun County, VA
    4 days ago
  • $160k - $200k

    Job ID: 2616995 Location: Chantilly, VA, US Date Posted: 2026-09-18 Category: Engineering and Sciences Subcategory: Modeling/Sim Engr Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: TS.SCI Clearance Level Must Be... 
    Full time
    Remote work
    Shift work

    SAIC

    Chantilly, Loudoun County, VA
    1 day ago
  • $184.8k - $277.2k

     ...you too. About the Team Workday's Cybersecurity & Trust organization exists to inspire...  ...concentrating on security architecture, engineering, and infrastructure. We select,...  ...enterprise environments in cloud software. As a Principal IAM Engineer here, you'll architect... 
    Work at office
    Remote work
    Home office
    Flexible hours

    HR Tech Job

    Reston, VA
    3 days ago
  •  ...Systems delivers solutions to the warfighter for responsive, scalable sensing solutions across all orbital domains. As Principal Machine Learning Engineer for Rocket Lab Optical Systems in Chantilly, VA, you will have the opportunity to support Tranche 3 of the U.S. Space... 
    Full time

    Rocket Lab

    Chantilly, Loudoun County, VA
    9 hours ago
  •  ...your skills strengthen national security, cybersecurity, health, transportation, and citizen services. We’re a nonprofit engineering, applied research, and advanced technology...  ...Systems and Operations Department is seeking a Principal Systems Engineer to support government... 
    Internship
    Local area

    Mitre

    Chantilly, Loudoun County, VA
    3 days ago
  •  ...and related collaboration tools, including Alleo.Apply systems engineering principles across the lifecycle of secure AV/VTC/IT systems,...  ..., and operational reports.Collaborate with IT, facilities, cybersecurity, and other technical teams to resolve issues, address operational... 

    Tenica and Associates

    Chantilly, Loudoun County, VA
    4 days ago
  • $173.3k - $259.85k

     ...get to space — our world class Space Systems team is empowering some of the boldest and most ambitious space missions. PRINCIPAL ELECTRICAL ENGINEER Rocket Lab Optical Systems solves mission-critical space domain and Intelligence, Surveillance, and Reconnaissance (... 
    Permanent employment
    Local area
    Flexible hours

    Rocket Lab Corporation

    Chantilly, Loudoun County, VA
    3 days ago
  • $127k - $315k

     ...Principal Reverse Engineering/Vulnerability Research Engineer Herndon, VA Clarity Innovations is a trusted national security partner, dedicated to safeguarding our nation’s interests and delivering innovative solutions that empower the Intelligence Community (IC)... 
    Contract work
    Flexible hours

    Clarity Innovations, LLC

    Herndon, VA
    2 days ago
  • $198.9k - $318.2k

     ...that help get to space - our Space Systems division is empowering the boldest and most ambitious space missions. PRINCIPAL MACHINE LEARNING ENGINEER Rocket Lab Optical Systems solves mission-critical space domain and Intelligence, Surveillance, and Reconnaissance... 
    Permanent employment
    Local area
    Flexible hours

    Rocket Lab Corporation

    Chantilly, Loudoun County, VA
    1 day ago
  •  ...we are a global leader in delivering cutting-edge technical cybersecurity products and services. As we grow and adapt in an increasingly...  ...Coordinate with proposal, contracts, pricing, security, and engineering teams to deliver compliant, executable offers. Capability... 
    Contract work
    Work at office

    REDLattice, Inc.

    Chantilly, Loudoun County, VA
    2 days ago
  • $134.5k - $265.1k

     ...understands the unique challenges and opportunities businesses face in cybersecurity. Join our team to deliver powerful solutions to help our...  ...Identity and Access Management (IAM) solutions team Saviynt Engineering Manager, you will:Demonstrate advanced understanding of... 
    Local area
    Visa sponsorship

    Deloitte

    McLean, VA
    3 days ago
  • $148.3k - $266.9k

     ...talent and redefine what’s possible.Job Description:Parsons Company, is seeking qualified candidates to fill a Principal Digital Signal Processing Engineer (DSP) positions at our headquarters in Herndon & Chantilly, VA. We are currently searching for full-time Digital... 
    Full time

    Parsons

    Chantilly, Loudoun County, VA
    3 days ago
  • Job TitleSenior Application and System Technologies (AST)/Principal Engineer (PE)LocationMcLean, VA 22102 US (Primary)CategoryResearch, Development, and EngineeringJob TypeFull-TimeCareer LevelStaffEducationMaster's DegreeTravelUp to 25%Security Clearance RequiredTop SecretJob... 
    Internship

    Prescient Edge

    McLean, VA
    4 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Principal Cybersecurity Engineer. Be the first to apply!