9 results for Lead Infrastructure Administrator in San Antonio, TX

Systems Administrator

San Antonio, TX
onsite
Temporary
26.19 - 30.33 USD / Hourly
Robert Half is seeking a skilled System Administrator to support a client in San Antonio, Texas, responsible for managing mission‑critical systems, ensuring infrastructure security, and maintaining compliance across a diverse IT environment. The ideal candidate will bring strong expertise in server administration, virtualization, networking, automation, and enterprise hardware/software support. Higher‑Level ResponsibilitiesThe System Administrator will be responsible for advanced infrastructure operations, environment stability, and enterprise‑level configuration management. Key responsibilities include:<ul><li>Developing and deploying Group Policy Objects (GPOs) and scripts to remediate complex or widespread end‑user device (EUD) issues related to vulnerabilities, security requirements, or compliance mandates.</li><li>Maintaining server and networking equipment, performing regular maintenance, addressing vulnerabilities, and ensuring compliance with Department of Defense (DoD) and DoW standards.</li><li>Administering VMware vCenter and ESXi hosts, including license updates, certificate management, patching, troubleshooting, and resource allocation across the virtual environment.</li><li>Managing internal and external security certificates, ensuring proper tracking, renewals, and alignment with organizational security policies.</li><li>Updating and managing critical server functions as the environment evolves—for example:</li><li>Updating WSUS for new Windows OS versions</li><li>Updating WDS for new hardware deployments</li><li>Applying updates to RHEL and other Linux servers</li><li>Supporting additional server roles as needed</li><li>Troubleshooting and maintaining backup servers and Oracle-based devices, resolving issues to ensure system continuity and data integrity.</li></ul> IT Gear Support Responsibilities(General support and configuration; vendor support/maintenance contracts are maintained separately)This role includes support for a broad range of IT equipment and technologies:<ul><li>Palo Alto firewalls</li><li>Cisco switches and routers</li><li>Phone systems (general issues)</li><li>Wireless infrastructure</li><li>Multi‑Function Devices (MFDs)</li><li>VMware platforms</li></ul>
2026-03-11T15:43:44Z

Cost Accounting Manager

Austin, TX
onsite
Permanent
120000.00 - 140000.00 USD / Yearly
My team and I are recruiting for a fast‑growing, highly dynamic client seeking an experienced Cost Accounting Manager to lead the development and transformation of their cost accounting infrastructure. This is a hands‑on, high‑impact leadership role where you’ll partner across Operations, Finance, Supply Chain, and Leadership teams to build scalable processes, enhance cost visibility, and drive profitability across the organization.You’ll have the opportunity to shape strategy, implement modern cost methodologies, and design systems that support a company experiencing rapid expansion. Key Responsibilities<ul><li>Lead the strategy, design, and execution of cost accounting processes and reporting.</li><li>Build and maintain accurate cost models, standard costing methodologies, and variance analysis frameworks.</li><li>Partner cross‑functionally to improve operational efficiency, margin insights, and cost transparency.</li><li>Oversee inventory costing, production analytics, and cost allocations across multiple sites or business units.</li><li>Drive continuous improvement initiatives, process automation, and SOP development.</li><li>Ensure compliance with internal controls, accounting standards, and audit requirements.</li><li>Provide high‑impact reporting and actionable insights to leadership to support data‑driven decisions.</li></ul>
2026-03-01T20:33:42Z

Systems Administrator

San Antonio, TX
onsite
Contract / Temporary to Hire
35.00 - 38.50 USD / Hourly
We are looking for an experienced Systems Administrator to join our team in San Antonio, Texas. This contract position offers an excellent opportunity to manage and maintain essential IT systems while contributing to the overall efficiency of operations. The ideal candidate will have a strong background in system administration and a proven ability to support a variety of platforms and tools. Responsibilities: • Perform daily system administration tasks, including provisioning, installation, configuration, patching, and maintenance of hardware and software systems. • Manage and support Windows Active Directory environments, including storage, network infrastructure, and backup systems. • Operate and maintain monitoring and management tools such as Microsoft system tools. • Communicate complex technical concepts effectively to non-technical team members and stakeholders. • Administer and provide support for virtualization platforms, including Microsoft Hyper-V and VMware vCenter. • Develop and utilize PowerShell scripts to enhance system automation and efficiency. • Ensure system reliability and performance by conducting regular assessments and troubleshooting issues. • Collaborate with other IT professionals to optimize system operations and resolve technical challenges. • Contribute to the planning and implementation of infrastructure upgrades and improvements.
2026-03-03T18:48:42Z

Systems Administrator

Austin, TX
onsite
Temporary
47.00 - 55.00 USD / Hourly
Systems AdministratorOnsite | Austin, TX | Contract Robert Half is partnering with a client in Austin, TX to hire a Systems Administrator on a contract basis. The Systems Administrator will perform complex to highly complex (senior-level) systems administration work supporting critical enterprise infrastructure. This role is responsible for the upkeep, configuration, and reliable operation of core systems, including installing and upgrading hardware and software, troubleshooting system issues, and providing technical guidance to other team members. Responsibilities:<ul><li>Maintain server data integrity through appropriate software and hardware solutions, including implementing and managing scheduled backup and data archiving processes.</li><li>Configure automation routines using scripting and other programming languages.</li><li>Evaluate existing information processing systems to assess effectiveness and identify opportunities to improve productivity and workflow.</li><li>Coordinate, plan, and schedule system installations, upgrades, and end-user or technical training for new or revised systems.</li><li>Define and manage roles and access privileges for users and devices across multiple systems to prevent unauthorized access.</li><li>Assist with technical analysis and documentation for simple to complex projects, migrations, and software upgrades.</li><li>Perform system scans, research identified issues, recommend appropriate resolutions, and validate solutions through testing.</li><li>Support system compliance efforts by aligning environments with applicable standards, frameworks, and best practices while maintaining operational continuity.</li><li>Work closely with external vendors, including those supporting cloud hosting and cloud management environments.</li></ul>
2026-03-16T13:28:44Z

Network Administrator

San Antonio, TX
onsite
Contract / Temporary to Hire
42.75 - 49.50 USD / Hourly
We are looking for a skilled Network Administrator to join our team in San Antonio, Texas. In this Contract to permanent position, you will play a critical role in ensuring the seamless operation and optimization of our network infrastructure. Your expertise will contribute to maintaining high performance and reliability across local and wide area networks. Responsibilities: • Monitor network performance to identify and resolve issues, ensuring optimal operation. • Implement necessary software updates and hardware upgrades for improved network functionality. • Configure and document network components, including firewalls, routers, switches, and hubs, to meet organizational needs. • Provide technical support and assistance to staff, administrators, vendors, and other personnel. • Respond promptly to inquiries and troubleshoot network-related problems. • Collaborate with service providers and external vendors to maintain and enhance network infrastructure. • Manage and deploy Cisco Layer 2 and Layer 3 technologies to support network security and efficiency. • Maintain detailed records and documentation for all network configurations and changes. • Ensure compliance with security protocols and best practices across all network systems.
2026-03-03T18:53:41Z

IT Manager/Director

Seguin, TX
onsite
Permanent
150000.00 - 220000.00 USD / Yearly
IT Manager in the Industrial Power Systems Division (IPSD) segment of the Power & Energy GCIO organization. We are seeking an experienced IT Manager for our IPSD Large Engine facilities in South Texas. In this role, you will lead a team of 7-10 IT professionals who are responsible for providing application and site support for Seguin, Schertz and San Antonio. The role is responsible for supporting operations, technical infrastructure, project/portfolio execution, supporting strategic enterprise programs and leading modernization of systems aligned to strategic roadmaps. The selected candidate must establish and maintain strong relationships with business partners, a global team of IT professionals and software vendors. Additionally, the incumbent will serve as a strategic IT business partner ensuring the delivery of high-quality, innovative solutions that align with business objectives. The scope manages 7-8 Caterpillar staff & 2-3 agency staff across 3 sites, and $6M in technology spend. What You Will Do: Lead and motivate a team overseeing the performance of individual team members and the team, fostering a culture of Lean, innovation and modeling Our Behaviors and Our Values In Action. Drive innovation and solve complex business challenges by deploying new technologies that enable modernization, strengthen digital and AI capabilities, while leading process improvements and automation to improve operational excellence. Manage the development, deployment, maintenance, and integration of IT applications aligned to business-relevant IT strategies, priorities and strategic roadmap. Build and maintain relationships with business partners, vendors, and Caterpillar IT driving alignment in goals, strategy, priorities, and outcomes. Remove roadblocks and prioritize resources to achieve strategic business objectives. What You Will Have: Leadership: Proven experience in leading and managing application or site support teams. Business Acumen: Knowledge of business concepts, tools, and processes that are needed for making sound decisions in the context of the company's business; ability to apply this knowledge appropriately to diverse situations. Information Technology Trends: Knowledge of marketplace experience, developments and trends related to the organization's use of Information Technology (IT); ability to apply knowledge of IT appropriately to benefit the organization. Talent Management: Knowledge of the critical competencies required to achieve intended results; ability to generate consistent approaches for hiring, selection, retaining and leveraging talent across the organization. Vendor/Supplier Management: Knowledge of external provider management processes and ability to effectively manage the business relationship with external providers (e.g. vendors, service providers, contractors, consultants and suppliers). Top Candidates Will Also Have: Bachelor’s Degree in Computer Science, Information Technology, or related field Strong skills in planning, initiating actions, delegation, consensus building, decision-making, and leadership. Experience in industrial manufacturing and digital transformation. Familiarity with multiple technologies (Distributed, Mainframe, Integration, MES, ERP). Strong communication and conflict management skills, accountability, relationship building Project management expertise (scope, cost, time estimation, resource planning). Additional Information: Travel is less than 10%
2026-03-19T15:38:43Z

Systems Administrator

San Antonio, TX
onsite
Temporary
42.75 - 49.50 USD / Hourly
We are looking for an experienced Systems Administrator to join our team in San Antonio, Texas. In this long-term contract position, you will play a pivotal role in managing Linux systems while supporting research initiatives and organizational objectives. The ideal candidate will possess in-depth expertise in system management and demonstrate proficiency in a variety of technologies. Responsibilities:• Manage and maintain Linux-based systems to ensure optimal performance and reliability.• Oversee the deployment and configuration of tools such as Conda and Jupiter• Provide technical leadership in the administration and management of organizational systems.• Collaborate with cross-functional teams to support research efforts and operational goals.• Troubleshoot and resolve system issues to minimize downtime and maximize efficiency.• Implement best practices for system security and data protection.• Monitor system performance and perform regular updates to ensure smooth operation.• Utilize Active Directory to manage user access and permissions.• Support Windows Server environments and Windows 10 systems.• Work with Dell and Citrix technologies to enhance system functionality
2026-03-11T15:33:41Z

IT Manager

San Antonio, TX
onsite
Permanent
125000.00 - 140000.00 USD / Yearly
Maintain essential IT infrastructure, including operating systems, security tools, applications, servers, email systems, laptops, desktops, software, and hardware. • Take responsibility for projects and solutions within the larger business initiative. • Handle business-critical IT tasks and systems administration. • Analyze departmental needs, identify vulnerabilities, and boost productivity, efficiency, and accuracy to inform business decisions. • Ensure network components work together seamlessly to meet business needs, using their full range of capabilities, and stay informed about new features and competitor solutions. • Analyze processes, technologies, and vendors continually to find areas for improvement. • Prepare cost–benefit analyses when upgrades are necessary, and monitor vendors to ensure that they are offering the best possible service and value for business needs. • Train employees to use software and hardware; troubleshoot issues and provide technical support when needed. • Mentors, interviews, hires, trains, reviews, supervises, and discipline employees. • Develop and execute disaster planning and maintain data backups. • Developing and implementing IT policy and best practice guides for the organization • Managing and reporting on allocation of IT budget • Identifying opportunities for team training and skills advancement • Develop and implement policies related to network security, disaster recovery, and IT infrastructure. • Analyze resource utilization and develop strategies to optimize performance. • Establish, measure, and define IT goals and maintain an IT roadmap. • Monitor and analyze the success of IT initiatives and projects and continually develop and evaluate new technologies and tools for the company. • Establish a security policy to protect company information and resources. Required Education and Experience: Bachelor’s degree in IT, computer science, or a related field. A minimum of 5-7 years of experience in IT management Preferred Education and Experience: MST-HR-JD031 Revise Date:2024/03/05 Supervisory Responsibilities: Directly supervises all employees involved in the IT department. activities. Carries out supervisory responsibilities in accordance with the organization’s policies and applicable laws. Responsibilities include training employees; planning, assigning, and directing work; assisting management with appraising performance; rewarding employees; addressing complaints and resolving problems. Travel Required: Up to 25%
2026-03-12T21:53:45Z

Systems Engineer

San Antonio, TX
onsite
Permanent
95000.00 - 120000.00 USD / Yearly
Major Duties and Responsibilities Essential Tasks Perform capacity and resource planning, assess risks with recommendations, design and implement VMware server environments. Plan and execute Infrastructure upgrades and migration projects with existing hardware and/or software. Proactively anticipate, prevent and eliminate data center problems and risks by identifying and creating efficient fixes for any security risks, patches/vulnerabilities, etc. Provide Infrastructure services in all areas needed: storage networking, Operating System, network security, directory services, server virtualization using system backup and restore, system and network monitoring, application installation and configuration Standard system administration duties including server install, System/Application install and patch management, Windows problem determination and resolution, log analysis, etc. Participate in after‐hours upgrades, troubleshooting, and/or on‐call availability as needed. Work closely with a collaborative team, other IT staff, including networking, security, and data center operation teams, to facilitate effective issue resolution. Originate specifications, control documents, verification and validation plans, procedures, reports, and other documentation in support of design and development activities. Perform root cause analysis on complex issues in client environments to identify root causes and identify resolution plans. Review system implementation and performance as to implement system enhancements if needed. Develop standardized deployment documentation where necessary to document build standards. Must be able to mentor and teach other members of ITS as necessary. Perform and assume duties and responsibilities of others as assigned by departmental management. Knowledge of MS 365, internet browsers, LAN/WAN networking, enterprise WiFi, VMWare, storage technologies Expert knowledge of PowerShell Ability to configure, install, and maintain hardware and software for VMWare environment, Windows 10 desktops/laptops, and peripherals. Performs other duties as assigned. Education Requires a high school diploma or general equivalency diploma. Related formal training preferred. Licenses and/or Certifications N/A Experience Requires seven or more years of IT experience. Requires Extensive Active Directory and Virtualization Design skills. Requires experience with VMWare ESXi 6 or greater. Requires experience working with Windows 2003‐2018, VMware, Citrix, SBS Server, various backup technologies (Rubrik). Requires experience of Networking including TCP/IP, Switching, VLAN’s Routing and wireless. Knowledge Must obtain a working knowledge of regulatory/quality requirements and perform within all Standard Operating Procedures (SOPs) and policies. Must have extensive knowledge of Microsoft operating systems, Microsoft Server 2003 and above, Clustering technologies, Active Directory design, Server Virtualization (VMware) File Virtualization, SAN design, High Availability, SCCM, SCOM.
2026-03-11T19:44:04Z