Assistant Maintenance Supervisor

Keystone Distinction Group; Chicago (IL); On-site; USD 60,000 - 75,000; Full time

Job summary

A manufacturing company located just outside of Chicago is seeking an Assistant Maintenance Supervisor. This role supports the Maintenance Supervisor and focuses on hands-on troubleshooting of injection molding machines. The ideal candidate has extensive experience in maintenance, demonstrates strong leadership qualities, and is interested in advancing in their career. Responsibilities include coordinating maintenance activities, troubleshooting issues, and training technicians. This position offers a challenging yet rewarding environment for professionals looking to grow in leadership within the maintenance field.

Qualifications

• Extensive experience repairing injection molding machines and auxiliary equipment.
• Strong working knowledge of mechanical, electrical, hydraulic, and pneumatic systems.
• Proven troubleshooting skills with ability to perform root cause analysis.

Responsibilities

• Act as backup to the Maintenance Supervisor during absences.
• Support daily maintenance activities to minimize downtime.
• Troubleshoot and diagnose issues on injection molding machines.

Skills

Repairing injection molding machines

Troubleshooting mechanical issues

Leadership experience

Welding skills

Reading technical documentation

Job description

ASSISTANT MAINTENANCE SUPERVISOR

Location: Just outside of Chicago, IL

Title: Assistant Maintenance Supervisor
Department: Maintenance
Reports To: Maintenance Supervisor

OVERALL ROLE

Serves as the primary backup to the Maintenance Supervisor and supports the reliable operation of injection molding machines and auxiliary equipment through hands‑on troubleshooting, preventive maintenance, and leadership support. This role is intended for a maintenance professional seeking growth into leadership while remaining technically hands‑on.

ESSENTIAL RESPONSIBILITIES

• Act as backup to the Maintenance Supervisor during absences and assist with day‑to‑day leadership of the maintenance team
• Support and help coordinate daily maintenance activities to minimize downtime and support production
• Troubleshoot and diagnose mechanical, electrical, hydraulic, and pneumatic issues on injection molding machines and auxiliary equipment
• Lead and support root cause analysis efforts to prevent repeat failures
• Assist with preventive maintenance programs to improve equipment reliability and uptime
• Provide hands‑on maintenance support as needed, including machine and auxiliary equipment repairs
• Support training, development, and mentoring of maintenance technicians
• Help reinforce accountability, work standards, and a problem‑solving mindset within the maintenance team
• Assist with reviewing time sheets, work orders, and maintenance priorities
• Work with tool crib personnel to maintain appropriate inventory of parts, tools, and supplies
• Communicate effectively with production, tooling, and management to support plant priorities
• Promote and enforce safe work practices and maintain a clean, organized maintenance environment
• Perform additional related duties as assigned

EQUIPMENT & SYSTEMS SUPPORTED

• Injection molding machines
• Chillers, thermolators, resin dryers, material handling and loader systems
• Grinders, tower fans, and related auxiliary equipment

PHYSICAL REQUIREMENTS

• Manufacturing environment with moderate noise and frequent movement on the production floor
• Ability to stand and/or walk for the duration of the shift
• Ability to lift up to 55 lbs
• Ability to bend, stoop, twist, kneel, crouch, push, and pull as required
• Ability to climb, work atop molding machines, ladders, and aerial lift equipment
• Ability to work occasionally in confined or tight spaces
• Must wear required PPE, including fire‑retardant apparel

QUALIFICATIONS

• Extensive experience repairing injection molding machines and auxiliary equipment
• Strong working knowledge of mechanical, electrical, hydraulic, and pneumatic systems
• Proven troubleshooting skills and ability to perform root cause analysis
• Ability to read and interpret prints, diagrams, and technical documentation
• Welding skills required; machining skills a plus
• Prior lead, senior technician, or informal leadership experience preferred
• Strong interest in advancing into a formal leadership role
• Ability to balance hands‑on technical work with leadership and administrative responsibilities