System Admin III
Security Service Federal Credit Union
Job DescriptionDiagnoses and resolves z/Series system problems with a focus on extremely high availability. Coordinates outside support resources (vendors) to resolve vendor specific problems in a time-critical environment. Collaborates with other system administrators, systems Programmers, network, and application teams to perform daily activities ranging in complexity and will be responsible for the installation, configuration, upkeep, and reliable operation of the mainframe environment. Installs, tests, and maintains systems software and hardware including operating systems, compilers, utilities, monitoring tools, and network communications components. Evaluate, analyze, diagnose and resolve operating system and program product related issues. Presents statistical utilization and trend analysis, including recommendations to enterprise developers and management. Works with datacenter resources, helps identify CPU reduction opportunities in applications, sub-systems and work with application and system programmers to implement solutions. Reviews, evaluates and makes recommendations on software and hardware changes. Researches system and application problems involving multiple system components and unknown causes, in a time-critical environment. Performs routine and on-call systems programming support and troubleshooting. Performs problem management and resolution for system problems to help application areas, as needed, in troubleshooting, use of tools, information, etc. Completes any other job related duties needed to help drive to our Vision, fulfill our Purpose, and abide by our Organization’s Values.Job RequirementsBachelor's degree in Management, Computer Information Systems or equivalent education and/or experience. Minimum of eight (8) years of Internet-based infrastructure and technology experience. Minimum of 10 years in information technology experience. Strong knowledge of z/OS operating system architecture, installation using SMPE, internals, and recovery scenarios. Networking fundamentals experience, preferably IBM medium to large system mainframes. Thorough knowledge in z/Series, Transaction system products. Strong experience with mainframe automation and monitoring tools. Knowledge and experience with CICS management and administration. Good interpersonal, analytical, written, and verbal communication skills. Able to read and understand complex technical documents and periodicals. Ability to work in a team environment, meet deadlines, and take on a high level of responsibility and accountability. Strong project organizational skills. Provide seven day a week, twenty-four hour a day support. Availability for periodic travel to work-site locations.Job DetailsJob Type: Full-timeCategory: Information Technology (IT)Salaried: Salaried
$75k - $113.79k
Job Details Job Title: Systems Administrator III Clearance Required: Secret Work Location: Onsite, San Antonio, TX Analyze, validate, implement, maintain, and configure current services and tools (examples include Active Directory (AD), System Center Operations Manager...SuggestedContract workWork experience placementFlexible hours$184.4k - $220.3k
...CLEARANCE WITH POLY IS REQUIRED. ~ Having a Bachelor’s degree in a Qualified Engineering Field is a plus! ~ Twenty (20) years of systems engineering experience ~ Expert Linux system administrator proficient in troubleshooting server problems, managing virtual and...SuggestedFull timeContract workWork experience placementLocal area- ...employee onboarding and termination processes as it relates to technology ensuring new users are set up with required access to Mainframe systems/subsystems, and terminated users no longer have access to Mainframe systems/subsystems. Ability to troubleshoot, and resolve issues...SuggestedWork at office
$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... ..., TX $142,000.00-$150,000.00 1 month ago System Administrator III (Microsoft Windows Server) TX System Administrator II (Microsoft...SuggestedPermanent employmentFull timeInterim roleRelocationVisa sponsorshipWork visaRelocation packageFlexible hoursShift workDay shift$96k - $122k
Short Description Bowman has an opportunity for a Civil Engineer III to join our team in the Rio Grande Valley, TX, remotely. At Bowman, we believe in creating opportunities for aspiring people to thrive and achieve ambitious goals. That’s why a career at Bowman is more...SuggestedContract workFor subcontractorWork at officeLocal areaRemote work- ...Description Job Summary: The Customer Service Representative III at Augusta Life Sciences US OpCo I LLC is responsible for... ...services. Job Responsibilities: Create, manage, and maintain ERP system requests to support end-to-end order fulfillment, encompassing...Work at officeRemote workWorldwideShift workDay shift
- ...production environments. Works closely with engineering and operations teams to identify root causes, implement solutions, improve system reliability, and support infrastructure operations. Key Responsibilities: Troubleshoot Linux systems, applications, networking, and...Contract work
- Linux System Administrator LOCATION San Antonio, TX 78208 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a dedicated and skilled Linux Systems Administrator to join our team and play a vital role in...Temporary workFor contractorsImmediate startFlexible hours
- ...difference. Your adventure begins now-unleash your potential with MANTECH! MANTECH seeks a motivated, career and customer-oriented Linux Systems Administrator to join our team in San Antonio, TX. The Linux Orchestration Services (LOS) team which is the standard of excellence...Work at officeLocal area
- ...products, while upholding our core values of honesty, reliability, collaboration, positivity, and excellence.Responsibilities:User & System Account Management:Create and maintain user accounts via Active Directory and Azure AD.Manage access control and security group...Temporary workWork experience placementWork at officeRemote workRelocation
- ...unparalleled banking services.Who you are:As aQuality Automation Engineer III, you are our quality control, ensuring every application is... ...of applications to ensure the quality and stability in every system. You’ll use your strong problem-solving skills to ensure that...Full time
- Title(s): Network Administrator II and III Duration: 6-month contract to hire Start Date: ASAP Requirements: Active secret clearance... ...individuals will be working on a military base doing all network and system support for all of the Air Force. The day to day is as follows:...Contract workImmediate start
$6,676.84 per month
...Systems Administrator IIAgency: Texas Division of Emergency ManagementDepartment: Operations Technology SectionProposed Minimum Salary: $6,676.84 monthlyJob Location: San Antonio, TexasJob Type: StaffJob Description:The Texas Division of Emergency Management (TDEM) is...Work experience placementWork at officeLocal areaRemote workShift workAfternoon shift- ...System Admin L3We are seeking an experienced Telecommunications / Network Support Engineer to support mission-critical infrastructure and operational environments. The selected candidate will provide telecommunications support, infrastructure monitoring, network maintenance...
- ...System Administrator Jr.ASP Web Solutions is searching for a fulltime remote System Administrator Jr. to support an Air Force Medical Command (AFMEDCOM) requirement involving the Defense Medical Logistics Standard Support (DMLSS) system. This is a remote position, subject...Full timeContract workLocal areaRemote workMonday to Friday
- ...System AdministratorWe are seeking a proactive and detail-oriented System Administrator to join our team and help maintain the stability, security, and performance of our IT infrastructure. In this role, you will be responsible for managing servers, networks, and other...Temporary workFor contractorsImmediate start
$101.36k - $109.67k
...For This PositionWhat You'll ExperienceManage and optimize Oracle databases for smooth and secure operation.Administer Red Hat Linux systems and troubleshoot database and system issues.Perform daily backups, monitor server health, and apply security measures.Document...Flexible hours$750 per month
...System AdministratorSeeking experienced System Administrators to grow their knowledge and further their career. Interclypse has numerous openings on a variety of government projects allowing us to find the best fit for your personal skillset.Interclypse provides a uniquely...16 hoursTemporary work$85k - $90k
...System AdministratorGovCIO is currently hiring a System Administrator with HBSS focus in support of the AFSCI network. This position will be located in San Antonio TX and will be an on-site position.Responsibilities:Establishes and maintains smooth operation of computer...Currently hiring$70k - $109.97k
...Systems Administrator IIClearance Required: Secret Work Location: Onsite, San Antonio, TXKey Responsibilities:Maintain and troubleshoot enterprise level products and services, including hardware (servers) firmware, and software for both on-premise and MED365 Cloud/Tenant...Contract workWork experience placementRemote workFlexible hours$10k
...Senior Linux Systems AdministratorAt Wyetech, you'll be at the center of an award-winning corporate culture, breaking technological barriers and solving real-world problems for our federal government customers. We are committed to hiring the best of the best, and in return...Hourly payFull timeContract workWork experience placementSummer workImmediate startRemote work- ...Systems AdministratorAre you ready to enhance your skills and build your career in a rapidly evolving business climate? Are you looking for a career where professional development is embedded in your employer's core culture? If so, Chenega Military, Intelligence & Operations...
- ...computer technical expertise, project management, technical guidance and direction in the implementation and operation of computer systems; used for financial, clinical and/or administrative systems. Organizes and schedules a variety of major and/or complex computer system...Work experience placement
- Frost in Texas is seeking an Administrator II – Endpoint to maintain and enhance endpoint performance across the bank’s IT environment. You will troubleshoot end-user devices, deploy security measures, and work with engineering and support staff on large-scale endpoint...
$115k - $135k
...responsible for theadministration, sustainment, security, automation, and optimization of enterprise Red Hat Enterprise Linux (RHEL) systems supporting the616th Operations Center (616 OC). This position is located in San Antonio, TX and is onsite.ResponsibilitiesThis is a...Local area- ...Senior Systems AdministratorDigital Consultants is seeking a Senior Systems Administrator supporting Tier 1 and Tier 2 help desk operations... ...Server; VMWARE, VCenter, ESX 7.0 and Above; MS Active Directory Admin; Cisco products to include but not limited to 3560 switches,...Work at officeLocal area
- ...VueProficient in backend development using Active Server Pages (ASP.NET), C#, JavascriptExperience with Sitecore Content Management System (CMS) and web development best practices for secure DoD environmentsExperience with SQL, database design, schema development, and...Remote work
$7.5k
...Systems AdministratorThe RealmOne TRIBE is looking for you!RealmOne was built on the principle that people matter first and foremost. We believe in providing a strong work/life balance by investing in our employees and encouraging professional and personal growth. We do...Contract workWork experience placementImmediate startFlexible hours- ...HR Services Representative III Want to help pets live their best lives? We're proud to be where the pets go and where the pet people... ...HR partners with escalated inquiries and requests related to HR systems, compliance, policies, procedures. This role is crucial in driving...Work at officeLocal areaNight shift
- ...Antonio, United States | Posted on 01/29/2026 In this role, you will work with other members to mitigate vulnerabilities on Linux-based systems, implement STIGs, address POAMs, and mitigate Zero-Day vulnerabilities. Other standard Linux administration duties will be included...
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