IT Service Desk Specialist III

San Antonio, TXvia CompTech Computer Technologies CareersPosted Sep 28, 2026
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Technical skills

NetworkingIT supportCybersecurityTechnical writing

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Project managementOperations

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Customer supportHR

Welcome To Comptech

Good people. Dedicated People. Hard-working people.

CompTech is a service-oriented program management and technical company working to build lasting relationships with small and large companies, municipalities, and Government agencies. Headquartered in Dayton, OH, our clients nationwide are provided with services in client-focused practice areas resulting in solutions to organizational challenges.

Job Description

Job Title: IT Service Desk Specialist – Level III

Location: Joint Base San Antonio–Lackland (JBSA-Lackland), San Antonio, TX (on-site)

Supporting: The Defense Health Agency (DHA) Secret Security Clearance

Overview

Put Your IT Troubleshooting Experience to Work Supporting the Military Healthcare Mission!

Are you an experienced IT professional who enjoys solving challenging technical problems, working directly with users, and being the person others turn to when an issue isn't easily resolved?

CompTech Computer Technologies is seeking a Senior IT Support Specialist (Tier 3) to join our team supporting the Defense Health Agency (DHA) at Joint Base San Antonio–Lackland.

This is an excellent opportunity for a seasoned IT support professional who enjoys hands-on technical work and wants to apply their troubleshooting expertise in a mission-focused Department of Defense environment.

You'll serve as a trusted technical resource, tackling complex workstation, software, application, and connectivity issues while collaborating with other IT specialists to keep critical systems and users supported.

Work Scope

Key responsibilities include:

  • Serve as a Tier 3 escalation resource, troubleshooting and resolving complex technical issues that go beyond routine help desk support.
  • Diagnose and resolve hardware, software, workstation, application, connectivity, and user-access problems.
  • Investigate recurring technical issues, identify root causes, and implement effective solutions.
  • Work alongside systems administrators, network engineers, cybersecurity specialists, and other technical teams to resolve challenging incidents.
  • Manage and document incidents using enterprise ticketing systems, ensuring issues are tracked through resolution.
  • Share technical knowledge, contribute to troubleshooting documentation, and help improve support processes.
  • Provide responsive, professional technical support to users in a mission-critical DoD environment.

Experience, Education, and Certification

Requirements

  • Experience:
  • Six (6) years of progressive experience in IT support, desktop support, service desk operations, or a closely related IT discipline.
  • Strong hands-on experience diagnosing and resolving complex hardware, software, application, and workstation issues.
  • Experience supporting users in an enterprise IT environment.
  • Familiarity with IT service management and ticketing systems.
  • Ability to troubleshoot independently, collaborate with technical teams, and communicate effectively with end users.
  • Experience documenting technical solutions and contributing to process improvements.
  • Education:
  • Bachelor's degree or applicable equivalency of four (4) additional years of relevant experience.
  • Certifications: one is required to be considered.
  • Commercial baseline certifications applicable to this advanced role may include:
  • CompTIA CASP+ / SecurityX

- (Isc)² Cissp

Additional advanced certifications relevant to cybersecurity, systems administration, networking, enterprise technical support, or DoD cyber workforce requirements are a plus.

Security Clearance

Requirements

  • Active Secret Clearance
  • Salary:
  • $60,000 - $64,000, plus full benefits, PTO, 401k+, Tuition Reimbursement, Professional Development Support
  • Equal Employment Opportunity

CompTech is committed to building a diverse and inclusive environment in which we recognize and value each other’s differences as well as fostering a culture that promotes its core values: Commitment, Innovation, and Customer Satisfaction. As an equal opportunity employer, all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, genetic information, national origin, age, disability, or status as a protected veteran.

If you require assistance or an accommodation due to a disability, please call Human Resources at (937) 228-2667 or email stefanie.wallace@comptech.com. A CompTech associate will respond to your message as soon as reasonably possible.

Before you apply

  • 1Which parts of your CV prove experience with Networking, IT support, and Cybersecurity?
  • 2Which recent work examples would make your application stronger for this role?
  • 3What details from the original source listing should you confirm before applying?

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