Demo

IT Systems Administrator

Lewis Energy Group
San Antonio, TX Full Time
POSTED ON 4/21/2026
AVAILABLE BEFORE 5/21/2026
Lewis Energy Group is a vertically integrated E&P Company. We are one of the top natural gas producers in South Texas and in the nation. We operate in South Texas and have international operations. We are proud of the family-oriented work culture we have built over the decades. This culture carries into the pride we take in our work and in the communities, we operate in.

Under general supervision of the Infrastructure Manager, the IT Systems Administrator primary job purposes are to maintain and ensure the IT environment including in-house and cloud systems, supports Level II help desk functions and collaborates with vendors and the Network Administrator and Cyber Security Team.

Key Responsibilities

  • Responsible for the setup, configuration, installation, and maintenance of all physical and virtual servers. Position will be assisted by other department resources with respect to configuration, set up and installation of servers and associated computers/devices.
  • Proactively manage, maintain, monitor, patch, and problem resolution of all servers and applications that reside on the servers.
  • Implement, configure and maintain server operating systems, network and client protocols, remote access, including applications unique to various departments.
  • Responsible for backup and restore of files, programs, snapshots, logs, databases, and emails.
  • Responsible for the setup, configuration, installation, and maintenance of the Citrix Cloud and VDA environment.
  • Participate in a variety of specialized projects, i.e. micro segmentation, disaster recovery, and transit scheduling applications.
  • Maintains accurate records and files related to work performed; maintains inventory records and documents equipment installations and configurations.
  • Maintains user access, including adding and deleting users, modifying their configurations, security rights, and access rights.
  • Maintain cloud applications and mobile device management applications such as Mosyle, Azure, AWS
  • Monitor anti-virus, malware, and resolve issues.
  • Establishes and maintains effective working relationships with LEG employees, customers, vendors, third party SOC and all others contacted during work using principles of excellent customer service
  • Performs additional related duties as assigned.


Minimum Qualifications

  • Associate degree (A. A.) or equivalent from two-year college or technical school
  • Minimum of 3 years of related experience


Certificates, License, Registrations

  • Security
  • Network
  • Microsoft 365 Certified Enterprise Administrator
  • Microsoft 365 Certified Azure Solutions Architect


Other Skills and Abilities

  • Hands-on experience with LAN and WAN networks as well as a good understanding of network switches
  • Good understanding of system security and different techniques
  • Excellent problem-solving skills with the ability to break down problems from the root cause
  • Excellent communication skills with the ability to communicate with users of all levels and explain complex technical information into simple and understandable terms
  • Great leadership abilities with experience of managing/supervising a small team
  • Excellent analytical skills with the ability to analyze large volumes of data and identify trends and patterns


Your Benefits

Lewis Energy Group appreciates the hard work and dedication you bring to our team every day. To do our part, we are committed to keeping your benefits affordable and beneficial for you and your eligible family members. Lewis Energy Group strives to provide benefits that meet your needs, are easy to understand and use, and provide excellent value for affordable costs.

  • Insurance Medical/Dental/Vision/ Basic Life and AD&D/and other benefit options to meet your personal needs
  • Retirement 401K with immediate matching contribution
  • Annual Discretionary Bonus
  • Generous Paid Time Off and Paid Holidays
  • Employee Assistance Program (EAP) - Free, confidential support for you and your dependents
  • Career Progression Program - Opportunities for growth and development
  • On-Site fitness center
  • Wellness & Company Events throughout the year


Equal Opportunity Employer

Lewis Energy Group is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, age, sexual orientation, gender identity, national origin, citizenship status, protected veteran status, genetic information, or physical or mental disability.

Salary.com Estimation for IT Systems Administrator in San Antonio, TX
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