Systems Administrator II
ARS Aleut Construction
Key Responsibilities Systems Administrator
This employer is required to notify all applicants of their rights pursuant to federal employment laws.
For further information, please review the Know Your Rights notice from the Department of Labor.
- Provide overall technical leadership for enterprise systems operations, including hardware, software, networking, and infrastructure components
- Direct and monitor day-to-day operations for enterprise computing environments
- Translate business requirements into enterprise IT designs, architectures, and technical solutions
- Perform engineering analysis and integration of enterprise service alternatives to support modernization initiatives
- Serve as the primary SME for Linux/UNIX environments (RHEL, CentOS, Ubuntu, etc.)
- Administer, configure, and optimize Linux-based systems in physical and virtual environments
- Perform system tuning, performance optimization, and root-cause analysis of complex issues
- Support patching, upgrades, and lifecycle management of Linux systems
- Implement automation using Bash, Python, or similar scripting tools
- Monitor, diagnose, and resolve issues across:
- Servers (Linux & Windows)
- Network systems
- Storage environments (SAN/NAS)
- Applications and enterprise services
- Utilize advanced tools to identify and resolve performance bottlenecks and system failures
- Troubleshoot and resolve complex infrastructure issues affecting production systems
- Provide proactive improvements to enterprise infrastructure design and performance
- Install, configure, and maintain:
- Servers and workstations
- Operating systems (Linux, UNIX, Windows)
- Applications and patches
- Support both physical and virtualized environments
- Operate and maintain backup and recovery systems, including SAN-based solutions
- Conduct routine testing, validation, and integration of enterprise solutions
- Interface with end users and operations personnel to provide technical support and service delivery
- Ensure systems meet operational requirements and service level expectations
- Provide technical guidance and recommendations for system enhancements and modernization
- Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience)
- TS/SCI clearance- must be active.
- 3+ years of experience in enterprise systems engineering or operations
- 3+ years of hands-on experience with Linux/UNIX systems administration
- Strong experience with:
- Enterprise infrastructure (servers, storage, networking)
- SAN technologies and backup systems
- Virtualization platforms (VMware, Hyper-V, or similar)
- System monitoring and diagnostic tools
- Proven ability to troubleshoot and resolve complex system issues
- Security+
- Linux Foundation Certified System Administrator (LFCS)
- CompTIA Linux+
- Deep technical expertise in Linux systems and enterprise infrastructure
- Strong analytical and problem-solving skills
- Ability to integrate business needs with technical execution
- Excellent communication and stakeholder engagement skills
- Commitment to operational excellence and continuous improvement
- Health insurance
- Dental/Vision insurance
- Paid Time Off
- Short- and Long-Term Disability
- Life insurance
- 401k and match
This employer is required to notify all applicants of their rights pursuant to federal employment laws.
For further information, please review the Know Your Rights notice from the Department of Labor.
Vacancy posted 2 days ago
Similar jobs that could be interesting for youBased on the Systems Administrator II in San Antonio, TX vacancy
- ...Systems Administrator II (F5) Job Category: Technology Location: San Antonio, TX, USA Job Details Description Key Responsibilities Enterprise Systems Administration & Integration Provide technical leadership for enterprise hardware, software, and...SuggestedTemporary workLocal areaMonday to FridayWeekend work
- ...Systems Administrator II Job Category: Technology Location: San Antonio, TX, USA Description Key Responsibilities Systems Administrator Provide overall technical leadership for enterprise systems operations, including hardware, software, networking...SuggestedTemporary workLocal areaMonday to FridayWeekend work
$70k - $109.97k
Description Job Title: Systems Administrator II Clearance Required: Secret Work Location: Onsite, San Antonio, TX Key Responsibilities: Maintain and troubleshoot enterprise level products and services, including hardware (servers) firmware, and...SuggestedContract workWork experience placementRemote workFlexible hours- A leader in digital modernization is seeking a System Administrator in San Antonio, TX. The role requires expertise in both Windows and Linux server... ...and holds prerequisites such as DoD 8570.11-IAT Level II certification. The position demands strong troubleshooting skills...Suggested
- Aleut Federal, LLC is seeking a Systems Administrator II in San Antonio, Texas. The ideal candidate will lead technical operations, particularly in Linux environments, and possess expertise in enterprise infrastructure. This role requires an active TS/SCI clearance and...SuggestedFull timeMonday to Friday
- Aleut Federal, LLC in San Antonio, Texas, is seeking a Systems Administrator II to lead enterprise systems administration. The ideal candidate will have a Bachelor's degree in Computer Science and at least 3 years of experience in systems or infrastructure engineering,...Full time
- ELEVI Associates is seeking a qualified Systems Administrator in San Antonio, Texas, with expertise in telecommunications systems installation and maintenance. Candidates must possess a current security clearance and a bachelor's degree in a technical discipline or equivalent...
$84.4k - $100.3k
Elevi Associates, LLC in San Antonio, Texas is seeking a qualified System Administrator with a current security clearance. The role is focused on installation and maintenance of telecommunications systems and requires extensive experience and technical expertise. The successful...Night shift- A public university in Texas is seeking a Customer Relationship Management Project Administrator II to enhance data analytics and CRM optimization for admissions processes. This remote role emphasizes developing Power BI dashboards, automating data processes, and collaborating...Remote job
- Aleut Federal, LLC Systems Engineer II Job Category: Technology. Requisition Number: SYSTE003690. Posted: May 12, 2026. Schedule: Full Time. Location: San Antonio, Texas 78201, United States. You will provide support to all sites, including future expansion and increased...Full timeTemporary workLocal areaMonday to FridayWeekend work
- Overview Insight Global is looking for Network Administrators for a government contract. These... ...on a military base doing all network and system support for all of the Air Force. Responsibilities... ...or equivalent. Secret clearance. IAT-II certification. CCNA certification CCNA....Contract work
- Job Title Network Administrator II (Wide Area Network) Overview Job Description: Information Networks are critical to modern warfare. This... ...the DoD Information Network (DoDIN): Desired Effects Assured System and Network Availability that ensures uninterrupted...Hourly payFull time
- ...System Administrator III We connect our employees with some of the best opportunities around. Time and again, our employees tell us that the... ...experience. Candidate must, at a minimum, meet DoD 8570.11- IAT Level II certification requirements (currently Security+ CE,...Local areaMonday to Friday
- ...Full-time Description Position Summary: The System Administrator career track (Levels I through III) supports the design, deployment... ...Server administration and ticketing. System Administrator II is a mid-level position for technicians who have demonstrated...Full time
$120k
...Maximus is seeking an experienced System Administrator to join our team! Maximus TCS (Technology and Consulting Services) Internal Job Profile... ...practices in AWS Required Certifications: ~ DoD IAT-II (Security+) Preferred Skills and Qualifications: AWS Solution...- ...employer ( and Certified Great Place to Work ( Position : Senior System Administrator, Tier-3 Level Support Services. Location : San Antonio,... ...implementation. Processes tickets received from the Tier II support desk to resolution. Escalation point from Tier II....Contract workFor contractorsWork experience placementWork at officeRemote workFlexible hoursShift work
- ...global level. Perform local database administration for standard database software for common... ...filers including Virtual File Manager system. Identify and replace failed hardware... ...Required) • CompTIA Security+ or IAT Level II baseline certification required. •...Civilian ContractorLocal area
- ...time This is an in-office position. Department: 867 Systems Administration Job Summary: System Administrators upgrade, maintain,... .... Systems Administrators will work with Engineers and Tier II Administrators to monitor and maintain our system...Full timeBank staffWork at officeWeekend work
- ...System Administrator The Digital Modernization Sector within Leidos is seeking a System Administrator to support the DoD Mobility Classified Capability (DMCC) program as part of GSM-O II in San Antonio, TX. We're seeking a candidate experienced with Windows server...Shift workNight shift
- ...System Administrator SAWS is looking for an experienced Systems Administrator. The Systems Administrator is responsible for developing and... .... (User accounts, Group Policy, Network Printing, DDNS, ISA, IIS, Clustered server environments) Manages third party cloud...Work experience placement
- ...Overview System Administrator Location: Hurlburt Field, FL, JBSA, TX, and Keesler AFB, MS Job Status: Fulltime Clearance: Secret... ...). Maintain and apply required IAT/M certification level (II or III) within the scope of assigned duties. Support system...Full timeContract workLocal area
- ...Intermedia System Administrator (Kubernetes/Cloud Infrastructure) Full Time, San Antonio, TX OR Ft. Meade, MD Secret Clearance with TS/SCI... ...upgrade processes) on AWS cloud infrastructure ~ IAT-Level-II Certified ~ Demonstrated experience and/or training in system...Full time
- ...Antonio, TX Clearance Required: Public Trust (ADP/IT-II) or Tier 3 Investigation (NACLC) The Endpoint System Admin is responsible for architecting, developing,... ...Matrices) 1) Microsoft Certified: Azure Administrator Associate or Windows Server Hybrid Administrator Associate...
$73.45k - $132.78k
Description The Digital Modernization Sector within Leidos is seeking a System Administrator to support the GIG Service Management - Operations II (GSM-O II) program in San Antonio, TX. We’re seeking a candidate experienced and proficient with Windows server or Linux server...Local area$88.4k - $119.6k
Join to apply for the Mid-Level Systems Administrator role at Boeing Join to apply for the Mid-Level Systems Administrator role at Boeing Get AI... ...Administrator III (Microsoft Windows Server) TX System Administrator II (Microsoft Windows Server) TX San Antonio, TX $160,000.00-$16...Permanent employmentFull timeInterim roleRelocationVisa sponsorshipWork visaRelocation packageFlexible hoursShift workDay shift$130k - $140k
System Administrator (SA) Skill Level 3 The System Administrator (SA) Skill Level 3 provides support for implementation, troubleshooting and maintenance... ...may be substituted for a Bachelor's degree. DoD 8570 IAT II: CompTIA Security+ CE Cisco Certified Network Associate (...Full timeContract workWork experience placementImmediate startShift work- ...Place to Work ( ASRC Federal is currently seeking a Junior Systems Administrator - Tier-2 Level to support upcoming work located in San... ...months to obtain CompTIA Security+ (DoD 8570/8140 IAT Level II Baseline) Microsoft Certified: Azure Fundamentals or...Contract workFor contractorsWork experience placementRemote workFlexible hoursShift work
- ...System Administration & Technical Support We are STS Government Solutions, LLC (SGS), a government contracting and consulting firm supporting... ...Certifications in CompTIA Security+ CE, Network + CE or IAT Level II System Administrator ~ Active TS/SCI What We Offer:...Permanent employmentTemporary workFor contractorsFlexible hours
- ...Position: Engagement Skills Trainer (EST) Instructor/System Operator (Computer Operator II) Posted: 02/25/2026 Engagement Skills Trainer (EST) Instructor/System Operator (Computer Operator II) Joint Base San Antonio (JBSA), TX ATS is seeking a qualified...Contract workFlexible hoursWeekend work
- Core4ce IT Support Specialist II 1279-383 Core4ce is hiring an IT Support Specialist to join the team in San Antonio, Texas. Responsibilities: Monitor and answer service desk calls and emails to assist customers requiring technical support Handle calls, emails, and tickets...Full timeWork at officeImmediate startFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Systems Administrator II. Be the first to apply!
Related searches
- system admin San Antonio, TX
- IT administrator San Antonio, TX
- IT infrastructure administrator San Antonio, TX
- application system administrator San Antonio, TX
- microsoft systems administrator San Antonio, TX
- systems administrator San Antonio, TX
- remote systems administrator San Antonio, TX
- server administrator San Antonio, TX
- computer systems administrator San Antonio, TX
- enterprise administrator San Antonio, TX

