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Service Desk Specialist III

Strategic Systems Inc
Phoenix, AZ Contractor
POSTED ON 4/14/2026
AVAILABLE BEFORE 5/8/2026

Service Desk Specialist III (Tier 3 Support)

We are seeking a senior-level Service Desk Specialist III to provide advanced Tier 3 technical support across hardware, software, and enterprise systems. This is a highly hands-on role focused on endpoint management, SCCM administration, and the full end-user compute lifecycle.

This position is ideal for someone who thrives in complex environments, enjoys deep technical troubleshooting, and takes ownership of delivering high-quality IT services.


Key Responsibilities

  • Provide Tier 3 support for hardware, software, and enterprise systems
  • Manage the end-user compute lifecycle, including imaging, deployment, and device refresh
  • Administer SCCM (MECM) for software deployment, patching, and compliance
  • Perform endpoint vulnerability management, including remediation and security updates
  • Support the application lifecycle, including deployment, updates, and retirement
  • Maintain and enhance knowledge base documentation and technical procedures
  • Collaborate with internal teams to ensure efficient service delivery
  • Perform other related duties as needed


Required Qualifications

  • 6 years of progressive IT support experience
  • At least 3 years of experience in endpoint management and SCCM administration
  • Strong troubleshooting skills across hardware, operating systems, and enterprise applications
  • Experience managing device imaging, deployment, and lifecycle processes
  • Hands-on experience with patch management and compliance
  • Knowledge of endpoint vulnerability management and remediation
  • Experience supporting application deployment and lifecycle management
  • Familiarity with PowerShell scripting for automation
  • Strong communication, customer service, and problem-solving skills
  • Ability to manage priorities and work effectively in a fast-paced environment


Preferred Qualifications

  • Associate-level education or coursework in Information Technology or related field
  • Bachelor’s degree in IT or a related discipline
  • Experience in financial services environments
  • Relevant certifications such as:
  • CompTIA A
  • ITIL Foundation
  • Microsoft 365 Endpoint Administrator


Work Environment & Physical Requirements

  • Ability to sit or stand for extended periods (up to 8 hours)
  • Regular use of standard office equipment (computer, phone, etc.)
  • Occasional lifting of up to 15 pounds
  • Frequent typing, writing, and document handling
  • Ability to communicate effectively and participate in meetings


Equal Opportunity Employer

We are committed to creating an inclusive and diverse workplace. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic.

Hourly Wage Estimation for Service Desk Specialist III in Phoenix, AZ
$34.00 to $48.00
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