Maintenance Supervisor

Maintenance Supervisor

Ameristar Perimeter Security, the world’s leading manufacturer of ornamental steel fence, gates, and perimeter security products, is seeking a highly motivated Maintenance Supervisor to join our fast-paced manufacturing team in Tulsa, Oklahoma. This critical leadership role will report directly to the Production Manager and will be responsible for leading a team of maintenance technicians to ensure maximum uptime, equipment reliability, and safety across multiple production lines.

You will play a key role in supporting high-volume steel fabrication, welding, powder coating, and assembly operations by minimizing downtime, driving continuous improvement, and maintaining a culture of proactive maintenance and safety excellence.

What you will be doing:

• Directly supervise, coach, and develop a team of 8–12 maintenance technicians across multiple shifts.
• Plan, schedule, and coordinate preventive, predictive, and corrective maintenance activities for a wide range of industrial equipment (CNC machines, robotic welders, powder coating lines, conveyor systems, hydraulic presses, forklifts, etc.).
• Lead root cause analysis (RCA) and implementation of corrective actions for equipment failures, using tools such as 5-Why, Fishbone, and FMEA.
• Partner closely with Production Manager and other department leaders to prioritize work orders, minimize production interruptions, and meet aggressive OEE targets.
• Manage the CMMS system (work order creation, parts inventory, PM scheduling, and reporting).
• Ensure all maintenance activities comply with OSHA, ANSI, and internal safety standards; lead safety audits and training for the maintenance team.
• Drive cost reduction initiatives through improved spare parts management, vendor negotiations, and reliability-centered maintenance programs.
• Develop and implement training programs to upskill technicians on new equipment, PLC troubleshooting, and advanced maintenance techniques.
• Participate in capital equipment projects, including installation, commissioning, and handover.
• Prepare and present maintenance KPI reports (downtime, MTBF, MTTR, PM compliance, etc.) to senior leadership.
• Foster a culture of continuous improvement, accountability, and teamwork within the maintenance department.

The skills and experience you need:

Experience

• Minimum 5–7 years of industrial maintenance experience in a manufacturing environment (steel fabrication, welding, or metal processing strongly preferred).
• Minimum 3 years in a supervisory or lead technician role.

Technical Skills

• Strong knowledge of mechanical systems, hydraulics, pneumatics, electrical controls, PLCs (Allen-Bradley, Siemens), and welding equipment.
• Proficiency with CMMS software
• Experience with predictive maintenance tools (vibration analysis, thermography, oil analysis) is a plus.

Leadership & Soft Skills

• Proven ability to lead, motivate, and develop a technical team in a high-pressure, 24/7 production environment.

This role is located in Tulsa, OK.

ASSA ABLOY is an Equal Opportunity Employer/Minorities/Females/Disabled/Veteran

We are the ASSA ABLOY Group
Our people have made us the global leader in access solutions. In return, we open doors for them wherever they go. With nearly 63,000 colleagues in more than 70 different countries, we help billions of people experience a more open world. Our innovations make all sorts of spaces – physical and virtual – safer, more secure, and easier to access. 

As an employer, we value results – not titles, or backgrounds. We empower our people to build their career around their aspirations and our ambitions – supporting them with regular feedback, training, and development opportunities. Our colleagues think broadly about where they can make the most impact, and we encourage them to grow their role locally, regionally, or even internationally.

As we welcome new people on board, it’s important to us to have diverse, inclusive teams, and we value different perspectives and experiences.