Sr Computer Systems Administrator

| Springhill, LA, USA
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Are you looking for a career in a dynamic and innovative company that values versatility, growth, and teamwork? Look no further than Delek US Holdings!

What is Delek? What do we do?

We are a boutique-sized diversified downstream energy company with a range of assets, including petroleum refining, logistics, renewable fuels, and convenience store retailing.

  • Our refineries in Texas, Arkansas, and Louisiana have a combined crude capacity of 302,000 barrels per day
  • Our logistics business currently owns and operates 720 miles of crude and product pipelines, a 600-mile crude oil gathering system, and storage tanks and terminals.
  • Our Retail or convenience store part of Delek, runs over 250 stores in Texas and New Mexico. We also have company-branded New-to-Industry DK stores in the southern part of the US!
  • Our three renewables' plants in Texas, Arkansas, and Mississippi combined can produce 40 million gallons of biodiesel fuel a year.

Delek Benefits

We offer fantastic benefits that include up to a 10% match on 401K on your hire start, with a vesting timeline of only one year, along with medical benefits that start on day onewith a 30% premium rebate annually! We value your well-being and all employees now have access to the Calm app for FREE, which is used for meditation, stress management, and better sleep. Through our performance management program, you can earn additional annual incentives as you set and achieve goals. Our pay for performance culture motivates our employees to improve Delek's year-over-year company, business unit, and individual results. With some of the highest bonus payouts in recent years, we know that our success is due to our talented and dedicated team. We are looking for individuals like you to help us continue this momentum and bring new ideas to the table. At Delek, you will have the opportunity to make an impact and grow your career in a supportive and innovative environment.

Job Summary:

The Sr. CI/OT Specialist is a critical role responsible for overseeing the maintenance, support, and optimization of the organization's IT/OT infrastructure. This role requires a seasoned IT professional with extensive experience in managing complex systems, providing advanced technical support, and driving strategic IT initiatives. The Sr. CI/OT Specialist will ensure the reliability, security, and efficiency of the organization's computer systems and networks, supporting both business systems and industrial control system technology.

Roles and Responsibilities:

  • Serve as the primary point of contact and senior authority for the support of Critical Infrastructure, On Site Users, and Operations technology, ensuring seamless functionality and reliability.
  • Lead the development and implementation of strategic initiatives to enhance infrastructure resilience and performance.
  • Oversee and manage the support and maintenance of Industrial Automation & Control Systems (IACS) Hardware and Software, including network switches, firewalls, and servers.
  • Implement robust solutions to optimize the performance and security of IACS components.
  • Provide expert-level technical support and troubleshooting for Windows workstations, Office 365, Collaboration technology, and network connectivity issues on the business network.
  • Mentor and guide junior staff in resolving complex technical issues and improving their technical acumen.
  • Maintain a comprehensive and up-to-date inventory of all devices, ensuring precise records of equipment.
  • Lead Tiers 1-3 troubleshooting for hardware and software issues, utilizing excellent communication skills to guide users and technical staff through complex problem resolution.
  • Efficiently process, prioritize, and manage work requests and escalations, ensuring timely resolution and exceeding user satisfaction standards.
  • Provide strategic recommendations on the lifecycle management of hardware and software, including planning for upgrades, replacements, and decommissioning.
  • Maintain detailed, comprehensive, and current documentation on processes, procedures, and infrastructure for reference and knowledge sharing.
  • Occasionally travel to other facilities to provide on-site support, ensuring consistent and high-quality service across all locations.
  • Assist with on-site support initiatives and projects, coordinating with local teams and stakeholders.
  • Collaborate effectively as a senior team member, fostering communication, cooperation, information sharing, and problem-solving.
  • Assist cross-functional teams in technology projects and initiatives, promoting a culture of collaboration and continuous improvement.
  • Assist in various strategic and operational areas as directed by the manager to support and advance departmental and organizational goals.
  • Be available to participate in an on-call scheduled rotation, providing night and weekend support coverage.

Required Qualifications - Education, Skills & Experience:

  • Bachelor's degree, technical degree, or equivalent experience.

Preferred Qualifications - Education, Skills & Experience:

  • 3-6 years of related experience
  • Oil & Gas industry experience.
  • Knowledge of VMWare, Cisco, Microsoft products, and familiarity with IACS (Honeywell, DeltaV, Schneider, Yokogawa, etc) a plus.
  • Understanding of security concepts, firewall configuration and the Purdue model a plus.


We are an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or national origin, disability status, protected veteran status, or any other characteristic protected by law. Equal Opportunity Employer/Disabled/Veterans.


It's an exciting time to join Delek. We're on a mission to attract, retain, and engage the best and brightest talent - those who are great team players and leaders who make it their first priority to serve.

  • We are performance driven
  • We value a passion for excellence
  • We value teamwork
  • We value and reward hard work and dedication

Delek US offers the opportunity to provide you with more than a job - we want to help you build a career.

Since our inception, our ability to hire the right people for the job has served us well, resulting in an impressive record of consistent growth and profitability. With more than 3,500 employees in nine states, we have brought together a diverse team of professionals passionate about investing their time and expertise in one of the most dynamic downstream energy companies in the market today.

Welcome to Delek US Holdings

More Information on Delek US
Delek US operates in the Energy industry. The company is located in Brentwood, TN. Delek US was founded in 2001. It has 1322 total employees. To see all 9 open jobs at Delek US, click here.
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