Maintenance Supervisor

FIXX Energy is a battery manufacturer headquartered in Smyrna, Tennessee, operating one of the most established LFP battery production facilities in the United States. The site’s history traces back over a decade as a cornerstone of early U.S. EV battery manufacturing, representing a foundation of deep technical expertise and large-scale operational experience. Building on this heritage, FIXX Energy is evolving the platform into a modern, flexible manufacturing business serving the fast-growing energy storage market.

The company is focused on delivering high-performance battery cells and solutions and modernizing the American grid—delivering resilient, intelligent power infrastructure that enables the next era of human connection, AI, and advanced manufacturing. By combining proven manufacturing capability with a forward-looking product and market strategy, FIXX Energy is positioned to be a key enabler of the electrified, resilient energy systems of the future.

FIXX Energy is seeking a Maintenance Supervisor. The Maintenance Supervisor leads a multi-craft team of skilled technicians to ensure maximum uptime and reliability of production equipment. This role is a blend of hands-on technical guidance and strategic planning. You will be responsible for scheduling corrective and preventative maintenance (PM), overseeing new equipment installations, and fostering a culture of safety and continuous improvement.

You will manage daily maintenance operations, drive departmental KPIs, and ensure strict adherence to global standards (IATF
16949, ISO
14001) in a structured, mature operational environment.

• Plan and schedule all maintenance activities (Corrective, PM, and Project-based). Maintain an accurate maintenance log and utilize KPI reporting to track equipment downtime and team efficiency.
• Supervise, train, and mentor a team of multi-craft technicians. Manage employee records, including attendance, performance reviews, overtime, and safety certifications.
• Interface with Section Managers to set daily priorities. Lead the implementation of One Point Lessons (OPL) and Standard Operating Sheets (SOS) to standardize technical tasks.
• Interface with non-production stores (MRO) to look up and check out parts and supplies needed for daily activities, track scrap costs, and order materials for machinery repairs while adhering to budget constraints.
• Oversee the modification of hardware and software, maintain CAD drawings, and manage technical documentation. Partner with Engineering for new equipment installations and signoffs.
• Ensure 100% adherence to IATF
  16949, VDA 6.3, and ISO
  14001 standards. Actively identify safety hazards and implement proactive measures to reach zero-incident goals.

• Minimum 3 years of experience leading maintenance professionals in a high-volume manufacturing environment.
• High School Diploma or equivalent required.
• Strong fundamental knowledge of industrial multi-craft maintenance (Electrical, Mechanical, Fluid Power, and Robotics).
• Ability to interpret downtime data and communicate technical trends to cross-functional teams and non-technical stakeholders.
• General knowledge of Automated Systems and calibration requirements.
• Preferred:
  Proficiency in Omron PLC programming and robotics.
• Familiarity with Quality & Environmental standards (IATF
  16949/ISO
  14001).

Neither domestic nor international travel are required for this position.

Welcome to FIXX Energy, where you will have the opportunity to tackle the world's most fascinating challenges alongside exceptionally talented individuals who are driven to make a difference. We strive to ensure that our employees are well taken care of, enabling them to focus on their work and contribute to our collective mission.

We offer:

• Comprehensive compensation packages including a competitive salary and a bonus.
• An inclusive work environment that fosters professional and personal development.
• Medical, Dental and Vision Insurance
• HSA and Flexible Spending Accounts
• 401K with company match
• Life Insurance (Company paid and additional voluntary life available)
• Paid Vacation and 14 Paid Holidays
• Short term and…