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

Senior Systems Admin, Tier-3 - On-Site San Antonio

Vistronix

A leading government contractor in San Antonio is seeking a Senior System Administrator to provide Tier-3 level support in IT services. This role demands a U.S. citizen with a capacity to obtain a Public Trust clearance and a minimum of 8 years of relevant experience in Information Technology or a related field. The ideal candidate will manage various systems and support encryption services while maintaining compliance with DoD regulations. Attractive benefits and a supportive work environment await the right candidate. #J-18808-Ljbffr

Vacancy posted 4 days ago
Similar jobs that could be interesting for youBased on the Senior Systems Admin, Tier-3 - On-Site San Antonio in San Antonio, TX vacancy
  • A leading government contractor is seeking a Senior Systems Administrator in San Antonio, TX. This role involves managing Tier 2 support and requires 8 years of relevant IT experience. Candidates must be U.S. citizens able to obtain a Public Trust, and have certifications... 
    Senior
    Website
    For contractors

    ASRC Federal Holding Company

    San Antonio, TX
    2 days ago
  •  ...ASRC Federal is currently seeking a Senior Enterprise Management Systems Administrator - Tier-3 Level to support upcoming work located in San Antonio, TX. Summary: This contract will...  ...: This position will require on-site occupancy at or near the Ft Sam Houston... 
    Senior
    Website
    Contract work
    For contractors
    Work experience placement
    Remote work
    Flexible hours
    Shift work

    ASRC Federal Holding Company

    San Antonio, TX
    a month ago
  •  ...currently seeking a Senior Systems Administrator - Tier-2 Level to support...  ...upcoming work located in San Antonio, TX. Position:...  ...Administrator, Tier-3 Level Support...  ...San Antonio, TX (On-Site) Clearance: U.S....  ...customer tenant, User Admin, License Admin, Teams... 
    Senior
    Website
    Contract work
    For contractors
    Work experience placement
    Remote work
    Flexible hours
    Shift work

    ASRC Federal Holding Company

    San Antonio, TX
    1 day ago
  •  ...discover why we are a top veteran employer ( and Certified Great Place to Work™ ( Position: Intermediate System Administrator, Tier-3 Location: San Antonio, TX (On-Site.) Clearance: U.S. Citizen with ability to obtain a Public Trust. Summary: This contract will provide 24... 
    Website
    Contract work
    For contractors
    Work experience placement
    Work at office
    Remote work
    Flexible hours
    Shift work

    ASRC Federal Holding Company

    San Antonio, TX
    3 days ago
  •  ...Regional IT Systems Administrator Harbor Health is seeking a driven...  ...clinic adoptions and ongoing site operations, you will blend...  ...our clinics in Austin, San Antonio, El Paso, and Dallas are seamlessly...  ...Security Handle elevated (Tier 3+) support work routed from... 
    Website
    Shift work

    Harbor Health Services

    San Antonio, TX
    4 days ago
  •  ...( ASRC Federal is seeking a Senior Identity and Endpoint Engineer, Tier-3/4 to support an upcoming award in San Antonio, TX Location: San Antonio, TX (On-Site) Clearance: U.S. Citizen with...  ...position conducts software and systems engineering and software systems... 
    Senior
    Website
    Contract work
    For contractors
    Work experience placement
    Local area
    Remote work
    Flexible hours
    Shift work

    ASRC Federal Holding Company

    San Antonio, TX
    3 days ago
  •  ...Description Job Description AEITS, Inc . a GTSC Company, seeks Systems Administrator, Level 3. ~~~ This position is shift work - Tues-Sat 9pm-5am Location: San Antonio, Texas ~~~ All work is on-site. This is not a hybrid or remote position. Mission :... 
    Website
    Full time
    Temporary work
    Local area
    Shift work

    Advantage Engineering & IT Solutions Inc

    San Antonio, TX
    5 days ago
  •  ...active TS/SCI clearance for a position in San Antonio, TX. This role requires extensive...  ...specifically in back-end technologies and systems integration. The ideal candidate must have...  ...complex systems. The position demands on-site presence five days a week as part of essential... 
    Senior
    Website

    https:/www.scheurer.org/careers/

    San Antonio, TX
    4 days ago
  • Senior Wedding & Event Sales Manager at Hyatt Hotels in San Antonio, TX. About Our Resort With the addition of Rancher...  ...proposals and site tours. Negotiate contracts...  ...sales and event management systems. Ensure compliance with...  ...Minimum of 3‑5 years of experience... 
    Senior
    Website
    Contract work
    Worldwide
    Flexible hours
    Night shift
    Weekend work
    Afternoon shift

    Carlsbad Tech

    San Antonio, TX
    2 days ago
  •  ...Senior Project Engineer - San Antonio Location: San Antonio, TX, US, 78229 Best People + Right Culture....  ...subcontractor proposals. ~ Works on site with the project team to carry out a...  ...will be considered. Experience ~3+ years construction experience.... 
    Senior
    Website
    For contractors
    For subcontractor
    Relocation

    JE Dunn Construction

    San Antonio, TX
    10 days ago
  • ASRC Federal is seeking a Senior System Administrator in San Antonio, TX. This position requires providing Tier-3 level support and will involve managing personnel and coordinating...  ...security protocols. This role mandates on-site support at the Ft Sam Houston location. #J-... 
    Senior
    Website
    Flexible hours

    ASRC Federal

    San Antonio, TX
    4 days ago
  •  ...as they become available. Senior Project Manager - CEI (Austin or San Antonio) Atlas is a trusted...  ...and thrive. With a team of 3,500 employees and offices...  ...automated design and engineering systems. Coordinate with clients,...  ...data at project sites. Ensure successful project... 
    Senior
    Website
    Full time
    For contractors
    Work at office
    Local area

    Atlas

    San Antonio, TX
    4 days ago
  • $90k - $115k

     ...have over 10 years of federal procurement experience, including expertise in FAR and DFARS. This is a full-time, on-site position located in San Antonio, TX, offering competitive compensation with a salary range of $90,000 to $115,000 annually. #J-18808-Ljbffr Ignitec... 
    Senior
    Website
    Full time
    Contract work

    Ignitec Inc

    San Antonio, TX
    5 days ago
  •  ...Description Electrical Senior Superintendent An...  ...or repair of electrical systems, conductors, and associated...  ..., and compliance with site-specific safety...  ...ladder Stairways - 3 or more flights To...  ...Fort Worth, Austin, and San Antonio. We have successfully... 
    Senior
    Website
    For contractors
    Work experience placement
    For subcontractor
    Work at office

    Walker Engineering, Inc.

    San Antonio, TX
    5 days ago
  • $125k - $150k

    HRUCKUS is seeking an experienced Senior Database Engineer (TS/SCI) in San Antonio, TX to support national security and defense programs. The role involves database design, data modeling, and providing analytical skills for process improvement. Candidates must have active... 
    Senior
    Website

    HRUCKUS

    San Antonio, TX
    3 days ago
  • $50k

     ...responsible for activities related to Systems Administration and the...  .... Applicants local to the San Antonio area are highly preferred. Although...  ...the position may require on-site visits as needed....  ...customer accounts. Provides tier 2/3 technical support and serves... 
    Senior
    Website
    Full time
    Bank staff
    Local area
    Remote work
    Flexible hours

    UT Health San Antonio

    San Antonio, TX
    3 days ago
  • $75k - $113.79k

     ...Description Job Title: Systems Administrator III Clearance Required...  ...Work Location: Onsite, San Antonio, TX Key Responsibilities: Analyze...  ...to manage schema extensions, sites and services, domains and trusts...  ...troubleshoot by providing Tier 3 support for Exchange Online-... 
    Senior
    Website
    Contract work
    Work experience placement
    Flexible hours

    Alpha Omega Integration, LLC

    San Antonio, TX
    4 days ago
  •  ...Diesel Technician Tier 1 & Tier 2 - San Antonio, TX (I-35) Job Category: Service Department...  ...5, 2026 Full-Time On-site San Antonio, TX 78233,...  ...skills trained in the Tier 3 job specifications. In...  ...knowledge and can demonstrate systems knowledge of: (Air System, Fuel... 
    Website
    Full time
    Flexible hours

    Bruckner Truck Sales

    San Antonio, TX
    4 days ago
  •  ...partner is seeking candidates for a position requiring active TS/SCI clearance and significant IT systems administrative experience. This fully onsite role in San Antonio, TX demands proficiency in Microsoft and Linux systems, as well as AWS management. The selected individual... 
    Senior

    https:/www.scheurer.org/careers/

    San Antonio, TX
    4 days ago
  •  ...Overview Texas Oncology San Antonio is looking for an Advanced Practice Provider (APP)...  ...has approximately 600+ providers in 220+ sites across Texas and southeastern Oklahoma. Our...  ...level and typically requires a minimum of 0-3 years of experience. Level 2... 
    Senior
    Website
    Full time
    Local area

    US Oncology Network-wide Career Opportunities

    San Antonio, TX
    4 days ago
  • CEI Senior Project Manager - Construction Management - - Roadway/Highway - Austin or San Antonio BGE Inc is looking for a CEI Senior Project Manager - Roadway /Highway in our Construction...  ...Review construction issues that arise on site and work towards recommendation of a... 
    Senior
    Website
    Contract work
    For contractors
    Work at office
    Local area

    Brown & Gay Engineers, Inc. (BGE)

    San Antonio, TX
    3 days ago
  • A leading government contractor in Texas is seeking an Intermediate System Administrator - Tier-3 Level to provide 24/7 operations support. The role requires on-site presence and U.S. citizenship to obtain Public Trust. Responsibilities include managing services like Active... 
    Website
    For contractors

    ASRC Federal Holding Company

    San Antonio, TX
    5 days ago
  •  ...Infusion Department at our Downtown, San Antonio, Tx location. This is a full-...  ...600+ providers in 220+ sites across Texas and southeastern...  ..., BSN preferred. Minimum 0-3 years of RN experience. Willing...  ...to consider an entry, mid, or senior level candidate. Current RN... 
    Senior
    Website
    Full time
    Temporary work
    Monday to Friday

    US Oncology Network-wide Career Opportunities

    San Antonio, TX
    5 days ago
  • A leading government contractor is seeking a Junior Systems Administrator for a role based in San Antonio, TX. This position involves 24/7 operations support,...  ...monitoring, and troubleshooting, specifically within the Tier-2 level. Candidates must provide excellent customer... 
    Website
    For contractors

    ASRC Federal Holding Company

    San Antonio, TX
    5 days ago
  • $85k - $90k

    GovCIO is seeking a System Administrator with a focus on HBSS for the AFSCI network in San Antonio, Texas. The position involves managing computer systems to ensure smooth operations and includes responsibilities like system monitoring, patching, and implementing endpoint... 
    Website
    Flexible hours

    GovCIO

    San Antonio, TX
    4 days ago
  • $150k - $250k

     ...Configuration Management, CI/CD, Automation, AWS, Linux systems administration, Scripting in Bash, Programming in...  ...performed in a hybrid environment (on average 2‑3 days a week) with a great team on customer site in San Antonio, TX. Responsibilities Support development and... 
    Website
    Hourly pay
    Temporary work
    Work at office
    Immediate start
    Flexible hours
    2 days per week
    3 days per week

    Erias Ventures, LLC

    San Antonio, TX
    5 days ago
  • $28 - $38 per hour

     ...Description Job Description About Us The Patch Boys of San Antonio, part of the BELFOR family, the trusted leader in drywall and plaster...  ...; assign tasks and ensure work quality. Perform on-site assessments : evaluate damage, calculate materials, labor, and... 
    Senior
    Website

    The Patch Boys of San Antonio

    San Antonio, TX
    17 days ago
  •  ...or major holidays. The role is located in San Antonio, TX. Texas Oncology is one of the largest...  ..., operating over 600 clinicians in 220 sites across Texas and southeastern Oklahoma. The...  ...experience preferred Level 2 Minimum 3 years of nursing experience, preferably... 
    Senior
    Website
    Full time
    Temporary work
    Monday to Friday

    Texas Oncology

    San Antonio, TX
    4 days ago
  • AGT is looking for a Senior Solutions Architect to work in San Antonio, TX. The Senior Solutions Architect will lead Enterprise...  ...Troubleshoot complex network and system issues, ensuring reliability and...  ...Job ID 2025-20597 Work Type On-Site Company Description Work Where it... 
    Senior
    Website
    For contractors
    Local area
    Remote work

    NANA Regional Corporation

    San Antonio, TX
    3 days ago
  • A government-focused services provider seeks a Linux/UNIX Admin in San Antonio, TX, requiring over 7 years of experience in Unix/Linux Engineering...  ..., and a Secret clearance. The ideal candidate will manage system operations and ensure network security configurations. A... 
    Senior
    Local area

    22nd Century Technologies Inc.

    San Antonio, TX
    4 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Systems Admin, Tier-3 - On-Site San Antonio. Be the first to apply!