System Administrator

Linux System AdministratorWe 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.Essential Job FunctionsInstall, 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.Knowledge, Skills & AbilitiesProven 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.Preferred QualificationsRed 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.Physical RequirementsSeeing: 75-100% Must be able to read computer screen and various reports.Hearing: 75-100% Must be able to hear well enough to communicate with employees and industry contacts.Working ConditionsUsually good working conditions. Climate controlled buildings with adequate lighting and space. While performing the duties of this job, the employee is exposed to risk of electrical shock. Occasional exposure to elements such as noise, dust, cold/heat, and traffic or interruptions. Some elements present which make conditions less desirable than usually found in an office. The normal noise level is quiet in the office environment and may be moderate to loud in outside conditions.Note: To perform this job successfully, an individual must be able to perform the essential duties satisfactorily. Reasonable accommodation may be made to enable qualified individuals with disabilities to perform the essential functions.Disclaimer: The statements herein are intended to describe the general nature and level of work being performed by employees and are not to be construed as an exhaustive list of responsibilities, duties and skills required of personnel so classified. Furthermore, they do not establish a contract for employment and are subject to change at the discretion of the employer.PVT is an equal opportunity employer that is committed to diversity and inclusion in the workplace. We prohibit discrimination and harassment of any kind based on race, color, sex, religion, sexual orientation, national origin, disability, genetic information, pregnancy, or any other protected characteristic as outlined by federal, state, or local laws.This policy applies to all employment practices within our organization, including hiring, recruiting, promotion, termination, layoff, recall, leave of absence, compensation, benefits, training, and apprenticeship. PVT makes hiring decisions based solely on qualifications, merit, and business needs at the time.