Share this Job
Apply now

Apply for Job

Title:  Infrastructure Datacenter Syst Engineer

Date:  Sep 23, 2022

Dallas, TX, US, 75201

Basic Function

HF Sinclair in Dallas, TX is seeking an Infrastructure Datacenter System Admin who will conduct server related technical assignments and projects for the Information Technology Department. Responsible for a wide variety of technical tasks in virtualized infrastructure for Windows and Linux servers, consistent with established security guidelines. Assist with recommendations to address business requirements and improve workflow to ensure consistency and effective involvement of support resources throughout all project phases.

Job Duties

  • Provides proactive administration and daily operation for server and application virtualization solutions (i.e. VMware ESXi 6.x)
  • Participates in creating & planning server deployment, explains plan to management, assists in the decision making of computer hardware and layout, and plan implementation
  • Configures provisions Server Service Profiles for Cisco Unified Computing System using native utilities
  • Uses best practice methodologies for managing data backup, disaster recovery and replication throughout the enterprise
  • Monitors virtualized server environment and resolves host system issues to provide the highest level of availability
  • Configures and tests server and datacenter infrastructure
  • Supports datacenter infrastructure including racking and cabling
  • Performs day-to-day administration of DHCP and DNS infrastructure
  • Troubleshoots, researches solutions, and monitors server and virtualized environment activity using industry standard toolsets as well as custom coded solutions
  • Researches and resolves complex issues regarding operations, installations, on-line transactions, system status and downtime
  • Regularly consults with management/business and end users on needs and requests related to corporate systems applications and connectivity issues
  • Assists with identifying opportunities and design solutions to address business requirements and improve workflow to ensure consistency and effective involvement of support resources throughout all project phases
  • Installs, supports and administers software and/or custom applications as required, resolving issues at all levels and updating patches
  • Provides telephone, e-mail, and after-hours support to all sites using various tools
  • Maintains clear, concise, and accurate technical documentation for the application and supporting infrastructure environment, including detailed design documents, and assist in building procedures, training and technical support guidelines
  • Analyzes usage and trends, and evaluates vendor products in hardware and software
  • Monitors system health, performance tunes, and troubleshoots virtualization and other software environments and evaluates all in-place systems and applications
  • Documents activities such as down time, problems, and system configurations
  • Relocates technical equipment to and from an assigned location

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 5 years of job-related experience.

Education Level

A Bachelor’s Degree in Computer Science, MIS, related discipline or equivalent working experience is required.

Required Skills

Design and implementation of virtual server infrastructure using VMWare ESXi. Advanced daily administration of VMWare ESXi. Experience configuring and operating data protection solutions and Cisco Unified Computing System blades. Ability to plan, rack and cable datacenter hardware (servers, storage, switches and pow). Advanced knowledge of file/print servers, security and permissions using active directory. Strong use of Microsoft PowerShell for daily configuration and automation. Strong understanding of TCP/IP,DNS, DHCP, DFS, and SMTP. Strong working knowledge of MS Visio for documentation. Ability to document and evaluate current environment and use best practice methodologies to ensure highest-level investment utilization. Experience with ITIL methodology for Service, Change and Incident management. Advanced reading and writing skills, and ability to effectively communicate with others, both written and verbal communication, ability to perform intermediate mathematical calculations, and excellent interpersonal skills.



  • Preferred certifications: VMWare VCP, Microsoft MCSE, MCSA or equivalent. Industry (A+, Network+).
  • Experience with server backup and recovery systems (Rubrik, BackupExec, Veeam, etc.)
  • Experience with Privileged Access management and multi-factor authentication.
  • Working knowledge of MS SQL server supporting applications.
  • Experience with merger and acquisition infrastructure activities.
  • Working knowledge of Storage Systems
  • Basic network switch configuration and Fiber Channel Configuration.

Supervisory/Managerial Responsibility

Work Conditions

Office based with travel up to 25% 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.

Physical Requirements

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 and hearing, making visual inspections, perceiving color differences, making precise hand and finger movements, reaching and grasping.

Our One HF Sinclair Culture:

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.

About HF Sinclair Corporation


HollyFrontier Corporation, headquartered in Dallas, Texas, is an independent petroleum refiner and marketer that produces high value light products such as gasoline, diesel fuel, jet fuel and other specialty products. HollyFrontier owns and operates refineries located in Kansas, Oklahoma, New Mexico, and Utah and markets its refined products principally in the Southwest U.S., the Rocky Mountains extending into the Pacific Northwest and in other neighboring Plains states. In addition, HollyFrontier produces base oils and other specialized lubricants in the U.S., Canada and Netherlands, and exports products to more than 80 countries. HollyFrontier also owns a 57% limited partner interest and a non-economic general partner interest in Holly Energy Partners, L.P., a master limited partnership that provides petroleum product and crude oil transportation, terminal line, storage and throughput services to the petroleum industry, including HollyFrontier Corporation subsidiaries.

Equal Opportunity Employer

HF Sinclair Corporation is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status or any other prohibited ground of discrimination.

Nearest Major Market: Dallas
Nearest Secondary Market: Fort Worth

Apply now

Apply for Job