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Senior Principal Cyber Support Developer

ManTech

Denver, COJobSeen todaySeen in employer's feed today

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At a glance

Compensation
No compensation found
Location
Denver, CO
Work Authorization
Not specified

Olive lists jobs from US employers, including remote roles you can work from the United States.

Requirements

Credentials this posting asks for.

IAT Level II Certification Or Within 6 MonthsGSEC Or Security+ Or SSCP Or CCNA-SecurityTS/SCI clearance

Job overview

ManTech seeks a Senior Principal Cyber Support Developer to support development efforts and build scalable, high-quality solutions aligned with mission needs. The role maintains enterprise IT and server infrastructure in virtualized environments, supports system availability and security, and collaborates with stakeholders on business and mission requirements. The position is available in Chantilly, Virginia, or Denver, Colorado.

Skills & qualifications

RequiredNice to have

Skills

Software AdministrationSoftware Development ProjectsVirtual EnvironmentsServiceNow AdministrationKubernetes OrchestrationGitLab CI/CDAWS EKS ManagementLinux Server AdministrationTechnical Issue DiagnosisSolution DevelopmentTimely Resolution Delivery

Qualifications

Bachelor's or Equivalent Experience7+ Years Software Administration ExperienceIAT Level II Certification or Within 6 MonthsGSEC or Security+ or SSCP or CCNA-SecurityCertified ServiceNow AdministratorActive TS/SCI With Polygraph

Full job description

MANTECH seeks a motivated, career and customer-oriented Senior Principal Cyber Support Developer to join our team in Chantilly, VA or Denver, CO.

This role supports key development efforts and will contribute to building scalable, high-quality solutions that align with mission needs.

Responsibilities include but are not limited to:

  • Maintain enterprise IT infrastructure, ensure system reliability, and help maintain overall system security in a virtualized environment.

  • Identify and implement best-practice solutions for complex technical problems.

  • Maintain server infrastructure and perform system upgrades to ensure consistent operational performance.

  • Provide technical support to ensure high system availability and robust security posture.

  • Manage user access controls, deploy security patches, configure network infrastructure, and automate pipelines.

  • Collaborate with internal stakeholders and team members to build solutions that support business and mission requirements.

Minimum Qualifications:

  • Bachelors degree or 4+ years of additional work experience in lieu of degree

  • 7+ years of software administration experience.

  • Experience with supporting large, complex software development projects.

  • Experience with configuring and maintaining virtual environments.

  • Experience with maintaining and managing ServiceNow instances.

  • Hold a current IAT Level II certification (GSEC, Security+, SSCP, or CCNA-Security) or possess the ability to obtain one within 6 months of hire.

Preferred Qualifications:

  • Experience with Kubernetes orchestration, GitLab CI/CD pipeline implementation, AWS EKS management, and Linux server administration.

  • Ability to diagnose complex technical issues, develop effective solutions, and provide timely delivery of resolutions.

  • Certified ServiceNow Administrator (CSA) credential.

Clearance Requirements:

  • Must have a current/active TS/SCI with a Polygraph.

Physical Requirements:

  • The person in this position must be able to remain in a stationary position 50% of the time.

  • This position requires occasionally moving about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers via email, phone, or virtual communication, which may involve delivering presentations.

MANTECH International Corporation 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 [email protected] and provide your name and contact information.

How this job compares

Set against the 2,238 open Systems Administrator jobs on Olive Jobs, counted November 4, 2026.

Pay
  • This postingNot listed
  • Colorado median$97–146K/yr123 salary ranges
  • US median$40–48/hr116 hourly ranges
Openings
Olive Jobs lists 168 open Systems Administrator jobs in Colorado and 2,238 across the US. 5% of them nationwide are listed as remote or flexible.
Hiring the most in Colorado
Experience
This posting asks for at least 7 years of experience — more than three in four Systems Administrator postings that state a minimum ask for (median 5 years, across 1,882 postings).
Education
376 of the 2,238 open Systems Administrator jobs (17%) ask for a bachelor's degree or higher.

Counted across the open, public US postings on Olive Jobs on November 4, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.

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