Senior Endpoint Systems Engineer

Basic Function

HF Sinclair is seeking a Senior Endpoint Systems Engineer,specialized in VDI, anywhere in the US or preferably in Dallas,TX as we are embarking on a strategic transformation of our virtual desktop infrastructure, migrating from a traditional on-premises platform to cloud-based solutions. As a Senior Endpoint Systems Engineer, you will serve as a principal architect and administrator for our VDI environment, leading the migration effort, optimizing ongoing operations, and establishing best practices for administration and operational excellence.

You will be responsible for designing, implementing, and supporting scalable VDI solutions that enhance our digital workplace, ensure security and compliance, and deliver exceptional end-user experiences.

Job Duties

- Lead the migration of virtual desktop environments from Citrix to Microsoft AVD and Omnissa Horizon, including planning, execution, and post-migration support.

- Architect, implement, and optimize cloud-based VDI solutions to support diverse workforce needs across multiple sites.

- Administer AVD and Horizon platforms, managing configuration, provisioning, resource allocation, software deployment, and security policies.

- Develop and enforce VDI security policies, including Conditional Access, Zero Trust principles, and integration with Azure AD and other identity solutions.

- Leverage automation tools (PowerShell, REST APIs, etc.) to streamline deployment, patching, and ongoing VDI management.

- Monitor, troubleshoot, and resolve VDI performance and connectivity issues, collaborating with infrastructure and support teams as needed.

- Provide Tier 3 support for VDI-related incidents and escalations, including complex troubleshooting and project implementation.

- Champion operational excellence by continuously improving VDI processes, documenting procedures, and recommending enhancements to ensure optimal performance and reliability.

- Maintain enterprise-wide VDI configurations, including image management, application packaging, and profile solutions.

- Support secure remote access strategies, BYOD policies, and endpoint protection within the VDI environment.

- Collaborate with IT leadership, network/security teams, and vendors to align VDI strategy with business goals and industry best practices.

- Define technical strategy for VDI management, including capacity planning, disaster recovery, and business continuity.

- Mentor teams, share knowledge, and drive innovation in VDI technology adoption and administration.

- Engage with vendors and industry partners to evaluate new technologies and optimize VDI solutions.

- Set performance expectations for operational support and administration within the VDI team.

- Take on additional assignments as needed, based on business priorities and leadership direction.

Experience

A minimum of eight years of experience with VDI engineering and administration in a multi-site, enterprise environment is required, including hands-on expertise with Microsoft AVD, and Omnissa Horizon.

Education Level

A minimum of a Bachelor’s Degree in MIS or Computer Science, or equivalent years of experience in lieu of a degree, is required.

Required Skills

Extensive experience designing, deploying, and administering VDI platforms such as Citrix, Microsoft AVD, and Omnissa Horizon in enterprise environments is complemented by strong troubleshooting skills across VDI performance, connectivity, and application delivery. Proven ability to lead migration projects and drive transformation initiatives is supported by experience in creating technical documentation and training materials. Excellent written and verbal communication skills enable effective translation of complex technical concepts for diverse audiences, while strong organizational capabilities ensure successful project planning, time management, and collaboration within cross-functional teams.

Prior experience leading VDI migration projects from Citrix to Microsoft AVD and Omnissa Horizon, as well as a strong background in designing and enforcing security and compliance policies in cloud-based VDI environments. Familiarity with integrating VDI operations into broader IT initiatives through collaboration with security, networking, and infrastructure teams is valuable, along with hands-on experience using Nerdio for deployment, optimization, and management. Experience with IGEL, Intune, and SCCM is considered advantageous for enhancing endpoint management and user experience. Additional strengths include mentoring technical staff, leading complex problem-solving efforts, and applying IT service management frameworks such as ITIL, with a demonstrated commitment to continuous learning and staying current with emerging VDI technologies.

Supervisory/Managerial Responsibility

None

Work Conditions

Office-based with travel up to 10% required by land or air. Subject to varying road and weather conditions.

Benefits

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.

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

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 other specialty products. HF Sinclair owns and operates refineries located in Kansas, Oklahoma, New Mexico, Wyoming, Washington 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. HF Sinclair supplies high-quality fuels to more than 1,500 branded stations and licenses the use of the Sinclair brand at more than 300 additional locations throughout the country. 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. Through its subsidiaries, HF Sinclair produces renewable diesel at two of its facilities in Wyoming and also at its facility in Artesia, New Mexico. HF Sinclair provides petroleum product and crude oil transportation, terminalling, storage and throughput services to its refineries and the petroleum industry.

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.