> Markdown version of [/jobs/ext/2513241-systems-administrator](https://www.wearedevelopers.com/jobs/ext/2513241-systems-administrator). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Systems Administrator - **Company:** MasTec - **Location:** United States - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Microsoft Azure, Backup Devices, Bash Shell, BIND, Computer Networks, System Configuration, Dynamic Host Configuration Protocol, Linux, Domain Name System (DNS), VMware ESX Servers, Monitoring of Systems, Python (Programming Language), Network Security, Network Troubleshooting, Netconf, Network Architecture, Red Hat Enterprise Linux, Ansible, TCP/IP, Virtual Local Area Networks, Virtualization Technology, VMware VSphere, Scripting, Virtual Environment, Reliability of Systems, Firewalls (Computer Science), Infrastructure Automation Frameworks, Puppet, Docker, Vmware - **Published:** August 21, 2026 - **Apply:** https://diversityjobs.com/main/sendform/8/8/28176/1/18005500?backUrl=%2Fcareer%2F18005500%2FSystems-Administrator-New-Mexico-Loving ## About the Role Knowledge, Skills & Abilities: * Proven experience as a Linux System Administrator, preferably with RHEL. * Hands-on experience with VMware ESXi and vSphere. * Basic understanding of networking concepts (TCP/IP, DNS, DHCP, VLANs, firewalls). * Proficiency in scripting languages such as Bash and Python for automation. * Strong problem-solving and communication skills. * Ability to work independently and as part of a team., * Red Hat Certified System Administrator (RHCSA) or higher. * VMware Certified Professional (VCP) certification. * Experience with configuration management tools (e.g., Ansible, Puppet). * Familiarity with Docker containers. * Exposure to cloud platforms (AWS, Azure) is a plus. Licenses, Registrations: Must have, or be able to obtain, and maintain a valid New Mexico state driver's license, have an excellent driving record and be insurable under the Company's insurance policy. ## Description We are seeking a skilled and proactive Linux System Administrator with expertise in Red Hat Enterprise Linux (RHEL), VMware ESXi virtualization, automation scripting, and foundational networking. The ideal candidate will be responsible for maintaining, securing, and optimizing our Linux-based infrastructure while supporting virtualized environments and ensuring reliable system performance and connectivity. Responsibilities Essential Job Functions: * Install, configure, and maintain RHEL systems across physical and virtual environments. * Administer VMware ESXi hosts and vSphere environments. * Develop and maintain automation workflows for RHEL systems using tools such as Ansible, Bash, and Python to enhance system reliability and operational efficiency. * Automate network infrastructure tasks using Ansible, Python, NETCONF/YANG, and CLI scripting. * Create scripts and utilize APIs to integrate systems and extract actionable data for cross-functional automation and reporting. * Monitor system performance and ensure availability and reliability. * Apply OS patches and upgrades regularly; update administrative tools and utilities. * Troubleshoot hardware, software, and network issues in a timely manner. * Implement and enforce system security policies and procedures. * Maintain comprehensive documentation for system configurations, procedures, and troubleshooting. * Collaborate with network and security teams to ensure seamless integration and compliance. * Configure and maintain BIND DNS and KEA DHCP. * Understanding of enterprise backup solutions. * Participate in on-call rotation and respond to incidents as required. * Perform other duties as assigned by management. ## Related Videos - [Remote Driving on Plant Grounds with State-of-the-Art Cloud Technologies](https://www.wearedevelopers.com/videos/251-remote-driving-on-plant-grounds-with-state-of-the-art-cloud-technologies) - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [JavaScript the Grumpy Parts](https://www.wearedevelopers.com/videos/306-javascript-the-grumpy-parts) - [Generating code with Angular schematics](https://www.wearedevelopers.com/videos/129-generating-code-with-angular-schematics) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [The Best Job Search Websites of 2025](https://www.wearedevelopers.com/magazine/368-the-best-job-search-websites-of-2025) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)