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Site Support Engineer - Senior with Security Clearance

ReliaSourceSioux Falls, SD🇺🇸United StatesPosted Sep 23, 2026

Why This Role Stands Out

This Senior Site Support Engineer role offers a fantastic opportunity to leverage your advanced technical skills and security clearance to provide critical IT support within a reputable organization, with the flexibility of a hybrid work model. You'll thrive in this position if you excel at independently resolving complex issues, supporting key stakeholders, and coordinating technical activities, all while growing your expertise in a dynamic environment. Apply today to make a significant impact and advance your career!

Quick Overview

Seniority
Mid Senior
Work mode
Hybrid
Location
Sioux Falls, SD, United States
Posted
6 days ago

Job Description

Site Support Engineer – Senior: ReliaSource is seeking Senior Site Support Engineers to provide advanced technical support and serve as primary IT resources at designated TSA airports and facilities. Senior Engineers perform the responsibilities of a Site Support Engineer while independently resolving complex incidents, supporting priority users, coordinating site-level technical activities, and maintaining operational continuity. • Provide advanced troubleshooting and resolution of complex endpoint, peripheral, connectivity, and infrastructure issues.

  • Serve as the primary technical resource for assigned TSA locations, maintaining detailed knowledge of local infrastructure and operating requirements.
  • Provide priority technical support to TSA leadership, Federal Security Directors, law-enforcement personnel, and other designated users.
  • Coordinate incident resolution with the SPOC, regional management, engineering teams, and other service providers.
  • Lead or coordinate equipment refreshes, infrastructure maintenance, IMAC activities, and other field projects.
  • Maintain site documentation, technical procedures, equipment records, and knowledge-transfer materials.
  • Provide technical guidance and backup support to other field engineers.
  • Prioritize competing service requests, maintenance activities, and project requirements.
  • Support major incidents, service restoration, and continuity activities.
  • Maintain required TSA suitability, facility access, and airport security credentials Qualifications:
  • Substantial experience providing enterprise IT field support, desktop support, or infrastructure support.
  • Demonstrated ability to independently resolve complex technical incidents.
  • Strong knowledge of enterprise computing environments, peripherals, networking, and physical IT infrastructure.
  • Experience coordinating technical activities with remote engineering teams and customer stakeholders.
  • Strong troubleshooting, communication, documentation, and organizational skills.
  • Ability to serve as the primary technical resource at an assigned customer location.
  • Ability to obtain required TSA suitability and facility access credentials.
  • Federal IT support experience, TSA/DHS environments, major airport operations, ServiceNow, and mission-sensitive technical support.

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