Sr. Facilities Mechanical Engineer - Farmers Branch, TX, United States

Originally posted 17 August 2026 by the employer.

About the role

The Sr. Facilities Mechanical Engineer is responsible for the design, operation, reliability, maintenance, and continuous improvement of critical mechanical utility systems supporting semiconductor manufacturing operations.

What you'll do

• Support operation, maintenance, and optimization of facility mechanical systems serving cleanroom and manufacturing environments.
• Develop reliability strategies for chillers, cooling towers, HVAC systems, process cooling water, boilers, pumps, heat exchangers, vacuum systems, and compressed gas distribution systems.
• Lead and execute capital and expense projects involving mechanical utility systems and infrastructure upgrades.
• Support cleanroom environmental performance, including temperature, humidity, pressure relationships, airflow, and contamination control.
• Develop and improve preventive and predictive maintenance programs for mechanical utility equipment.
• Ensure compliance with local, state, and federal regulations, industry standards, and company policies.

What you'll need

• 8+ years of related experience with a Bachelor’s degree, or 6+ years with a Master’s degree, or 3+ years with a PhD in Mechanical Engineering or a related engineering discipline.
• Strong knowledge of HVAC and cleanroom systems, chillers, cooling towers, process cooling water systems, boiler and steam systems, vacuum and compressed gas systems, and pumps, valves, piping, and heat exchangers.
• Experience managing engineering projects, contractors, and facility modifications.
• Strong analytical, troubleshooting, and root-cause problem-solving skills.
• Excellent communication and cross-functional collaboration abilities.
• Experience supporting semiconductor manufacturing facilities or cleanroom environments.

Nice to have

• Knowledge of ASHRAE, NFPA, SEMI, and applicable building codes.
• Experience with BMS/SCADA platforms and facility monitoring systems.
• Professional Engineer (PE) license or progress toward licensure.
• Experience with energy management, sustainability, and utility optimization projects.
• Familiarity with reliability engineering methodologies and predictive maintenance technologies.

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Skills: critical mechanical utility systems, HVAC, cleanroom environmental systems, process cooling water, reliability strategies, preventive maintenance