Mechanical Supervisor

Job Summary

Mechanical Supervisor is responsible for leading the mechanical maintenance team to ensure safe, reliable, and efficient execution of all mechanical work across the facility. This role directly supervises mechanics and contractors, sets clear expectations, and holds the team accountable for results. This position requires a highly engaged, field-focused leader who drives work execution, reinforces standards, and fosters a strong team culture aligned with Vistra’s “One Team” philosophy.

Key Responsibilities

• Drive Safe, Disciplined Execution
• Ensure all mechanical work is performed safely and in compliance with site procedures and regulatory requirements
• Maintain a strong field presence to observe work, reinforce expectations, and intervene when needed
• Drive adherence to maintenance standards, procedures, and quality expectations
• Lead, Engage, and Hold the Team Accountable
• Set clear expectations for safety, performance, and work execution
• Hold mechanics and contractors accountable for meeting those expectations
• Provide direct, timely feedback—both positive recognition and corrective coaching
• Address performance gaps promptly and consistently
• Own and Drive Work Execution
• Actively drive daily work activities, not just coordinate them
• Ensure work is executed according to plan, while adapting to changing plant conditions
• Remove barriers and escalation issues that impact schedule, safety, or quality
• Deliver results during both routine maintenance and outage conditions
• Foster a “One Team” Culture
• Promote collaboration across Mechanical, Operations, Electrical, and support teams
• Reinforce shared ownership of plant performance, not siloed responsibilities
• Support peers and other departments to ensure overall site success
• Build a team environment based on trust, respect, and accountability
• Execute Maintenance and Outage Work Plan, coordinate, and oversee mechanical maintenance activities
• Support outage planning and execution with a focus on schedule adherence and efficient resource utilization
• Ensure work orders are completed accurately and closed out in a timely manner
• Drive Continuous Improvement
• Identify and act on opportunities to improve equipment reliability and team effectiveness
• Engage the team in improvement initiatives (e.g., OPI or similar programs)
• Use performance data and observations to drive better outcomes

Qualifications & Experience

• 6–10 years of mechanical maintenance experience in power generation or heavy industrial environments required.
• Supervisory or lead experience with direct responsibility for team performance preferred.
• Highschool diploma or GED equivalent required.
• Strong knowledge of rotating equipment, pumps, valves, and mechanical systems required.
• Experience with work management systems (SAP, Maximo, etc.) preferred.
• Proven ability to set expectations, enforce standards, and drive accountability.

Key Leadership Attributes

• Engaged Leader – Visible in the field and actively involved in work execution
• Accountability-Driven – Sets expectations and consistently holds the team to them
• Execution-Focused – Drives work to completion with discipline and urgency
• Team-Oriented (“One Team”) – Breaks down silos and promotes shared success
• Decisive – Takes action and addresses issues directly

What Success Looks Like

• Supervisor is consistently engaged in the field, driving work—not observing from a distance
• Team clearly understands expectations and is held accountable for results
• Mechanical work is completed safely, on schedule, and to quality standards
• Strong collaboration exists across all disciplines, reflecting a true “One Team” culture
• Equipment reliability and team performance show measurable improvement
• Issues, risks, and schedule impacts are communicated early and proactively to management, with a focus on no surprises and timely resolution

Job Family Plant Operations Company Luminant Generation Company LLC

Locations Sunnyvale, Texas Texas

Employer Commitment

We are a company of people committed to: Exceeding Customer Expectations, Great People, Teamwork, Competitive Spirit and Effective Communication.

Equal Employment Opportunity

It is the policy of the Company to comply with all employment laws and to afford equal employment opportunity to individuals in all aspects of employment, including in selection for job opportunities, without regard to race, color, religion, sex, sexual orientation, gender identity, pregnancy, national origin, age, disability, genetic information, military service, protected veteran status, or any other consideration protected by federal, state or local laws.

Equal Employment Opportunity (duplicate)

It is the policy of the Company to comply with all employment laws and to afford equal employment opportunity to individuals in all aspects of employment, including in selection for job opportunities, without regard to race, color, religion, sex, sexual orientation, gender identity, pregnancy, national origin, age, disability, genetic information, military service, protected veteran status, or any other consideration protected by federal, state or local laws.

Accessibility Statement

If you are an individual with a disability and need assistance submitting an application or would like to request an accommodation, please email us at to make a request.

If you are an individual with a disability and need assistance submitting an application or would like to request an accommodation, please email us at to make a request.

About Vistra

Vistra (NYSE: VST) is a leading Fortune 500 integrated retail electricity and power generation company based in Irving, Texas, that provides essential power resources to customers, businesses, and communities from California to Maine. Vistra is the largest competitive power generator in the U.S., with a capacity of approximately 41,000 megawatts, or enough to power 20 million homes, operating in all of the major competitive wholesale markets in the country.

Vistra is a leader in the energy transformation and expansion with an unyielding focus on reliability, affordability, and sustainability, powered by a diverse portfolio that includes natural gas, nuclear, coal, solar, and battery energy storage facilities. The company continues to grow its zero-carbon resources, operating the second-largest fleet of competitive nuclear power plants in the country, substantial battery energy storage capacity, and a growing number of solar facilities.

Vistra is one of the largest competitive electricity providers in the country and takes an innovative, customer‑centric approach to retail, offering solutions to meet customers’ needs, including more than 50 renewable energy plans. Through its family of retail brands, Vistra serves approximately 5 million residential, commercial, and industrial retail customers.

As a leader in the responsible transformation of the country’s energy supply, Vistra has made significant progress towards its 2030 and 2050 targets. The company has committed to a 60% reduction of Scope 1 and 2 greenhouse gas emissions by 2030, as compared to our 2010 baseline, and net‑zero carbon emissions by 2050, assuming necessary technological advancements and public policy incentives are achieved. Learn more about our environmental, social, and governance efforts and read the company’s sustainability report at

Vistra’s hardworking team is committed to its purpose, “lighting up lives, powering a better way forward” and is guided by four core principles: we do business the right way, we work as a team, we compete to win, and we care about our stakeholders, including our customers, our communities where we work and live, our employees, and our investors. Learn more about how Vistra is powering a better way forward at vistracorp.com.

Come join us and be part of something special! Click here to learn more about Vistra!