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The Distributed Control System (DCS) Monitoring Specialist delivers advanced, fleetwide oversight of control system performance across all HF Sinclair facilities. The role applies specialized tools and deep expertise in DCS health and system reliability to identify emerging issues, evaluate enterpriselevel operational and technical challenges, and drive consistent adoption of best practices that strengthen DCS stability. Reporting to the Control Systems Automation Lead, this position works closely with OT system teams to lead and support monitoring initiatives, coordinate proactive response strategies, and improve availability, performance, and reliability metrics across the fleet. The expected outcomes include earlier detection of degradation, uniform application of standards, and measurable reliability improvements at the enterprise level.

• Support and administer Microsoft and Linux servers, data protection, and application servers.
• Design and support of server monitoring and patching infrastructure.
• Manage the server security patching and alerting process for the server infrastructure. Participate in server patching in line with security standards, application standards and business practices.
• Supports the server infrastructure based on business needs and requirements.
• Proactive administration and daily operation for server patching and alerting operations.
• Working with Information Security Evaluate and review current releases of OS patches before and after installation in the environment.
• Participate in server security hardening for Microsoft Windows and Linux servers (minor).
• Installs, supports, and administers software and/or custom applications as required, resolving issues at all levels and updating patches.
• Coordinate with customers and stakeholders to collect data, conduct analysis, develop solutions, and implement monitoring strategies based on existing incident tickets or customer requirements.
• Troubleshoots, monitors, and researches solutions to aid peers in operation efficiencies using industry-standard toolsets and custom-coded solutions.
• Provide follow-up reports (technical findings, feedback, resolution steps taken) for root cause analysis, engineering technical assessment, and process improvement initiatives.
• Provides telephone, e-mail, and after-hours support to all sites using various tools.
• Develops and maintains clear, concise, and accurate technical documentation for the application and supporting infrastructure environment, including detailed design documents, and builds procedures, training, and technical support guidelines.
• The ability to work in an office setting.

  Special assignments or tasks assigned to the employee by their supervisor, as determined from time to time in their sole and complete discretion.

A minimum of 7 years of job-related experience is preferred.

A minimum of a four-year degree is preferred with a focus on computer science, MIS, or technical program. PREFERRED EDUCATIONAL LEVEL: Preferred certifications: Microsoft Security, Compliance, and Identity Fundamentals, Microsoft Windows Server Hybrid Administrator Associate, Microsoft Security Operations Analyst, Microsoft Windows Hybrid Server Administration Associate, Industry (A+, Network+).

• Experience in Disaster Recovery and Business Continuity.
• Experience administering IIS server, Tomcat and Apache.
• Additional support experience troubleshooting TCP/IP, WINS, DHCP, SMTP, DNS and anti-virus is preferred.
• Experience with Program Management and methodologies.
• Experience with merger and acquisition infrastructure activities.

• Proficient in scripting languages such as PowerShell, Bash, Python, Ansible, Puppet, or Chef.
• Knowledge in patching using Bigfix, Tanium, SCCM, WSUS or other technologies on Windows and non-Windows-based systems.
• Knowledge and experience in managing alerting platforms such as SCOM, Nagios, ManageEngine, SolarWinds or other like platforms.
• Configuring and supporting Server infrastructure including Windows and non-Windows based systems.
• Experience in managing Active Directory, GPO, File Server, DHCP and DNS roles.
• Experience with security best practices, server hardening.

  PREFERRED SKILLS: Preferred certifications: Microsoft Security, Compliance, and Identity Fundamentals, Microsoft Windows Server Hybrid Administrator Associate, Microsoft Security Operations Analyst, Microsoft Windows Hybrid Server Administration Associate, Industry (A+, Network+).

• Experience in Disaster Recovery and Business Continuity.
• Experience administering IIS server, Tomcat and Apache.
• Additional support experience troubleshooting TCP/IP, WINS, DHCP, SMTP, DNS and anti-virus is preferred.
• Experience with Program Management and methodologies.
• Experience with merger and acquisition infrastructure activities.

Directs or leads the work of others if need/ No direct reports.

Office based with travel up to 10% of time by land and air may be required. From time to time, required to work long hours which may include nights, weekends, holidays for regularly scheduled maintenance and emergency work and support as well as on-call availability. Subject to all temperatures, weather and varying road conditions.  

HF Sinclair offers a comprehensive benefits package designed to support the well-being of our employees and their families. Our benefits include, but are not limited to, the following:

• Medical Insurance
• Vision Insurance
• Dental Insurance
• Paid Time-Off
• 401(k) Retirement Plan with match
• Educational Reimbursement
• Parental Bonding Time
• Employee Discounts

We are committed to fostering a supportive and inclusive work environment, ensuring our employees have the resources needed to thrive professionally and personally. Benefit eligibility is governed by official plan documents, for more details visit Total Rewards.

Job conditions require standing, walking, sitting, twisting, stooping, crouching, kneeling, lifting and/or carrying, pushing and/or pulling up to 50 lbs., climbing up to 15 ft, talking or hearing, making visual inspections, making precise hand and finger movements, reaching or grasping; ability to operate and drive all assigned company vehicles at company standard insurance rates is essential; valid State drivers license and proof of insurance, perceiving color differences, ability to wear personal protective equipment (beards not permitted).

At HF Sinclair, we are united through our One HF Sinclair Culture, which is underpinned by our five core values of Safety, Integrity, Teamwork, Ownership and Inclusion. Developed to empower our people, our five core cultural values are at the heart of everything we do and extend to how we engage our stakeholders. These values influence our decisions, shape our behaviors and keep us connected across the entire organization. We maintain a true Safety culture for our employees, communities, environments and customers. Our goal is to make sure everyone returns home safely each day. We have a long-standing commitment to Integrity and ethical behavior and do what is right for our employees, investors, communities and the environment. We encourage employees to Step Up and Stand Out by championing a culture of Teamwork and Ownership. We foster a culture of Inclusion by encouraging diversity of experiences, viewpoints and backgrounds. What makes each of us different, together makes us stronger.

HF Sinclair Corporation, headquartered in Dallas, Texas, is an independent energy company that produces and markets high-value light products such as gasoline, diesel fuel, jet fuel, renewable diesel and lubricants and specialty products. HF Sinclair owns and operates refineries located in Kansas, Oklahoma, New Mexico, Wyoming, Washington and Utah. HF Sinclair provides petroleum product and crude oil transportation, terminalling, storage and throughput services to our refineries and the petroleum industry. HF Sinclair markets its refined products principally in the Southwest U.S., the Rocky Mountains extending into the Pacific Northwest and in other neighboring Plains states and supplies high-quality fuels to more than 1,750 branded stations and licenses the use of the Sinclair brand to more than 350 additional locations throughout the country. HF Sinclair produces renewable diesel at two of its facilities in Wyoming and also at its facility in New Mexico. In addition, subsidiaries of HF Sinclair produce and market base oils and other specialized lubricants in the U.S., Canada and the Netherlands, and export products to more than 80 countries.