Assistant Maintenance Supervisor

Mangrum Career Solutions LLC; Chicago (IL); On-site; USD 65,000 - 90,000; Full time

Job summary

Mangrum Career Solutions LLC is seeking an Assistant Maintenance Supervisor just outside of Chicago, IL to back up the Maintenance Supervisor and keep injection molding equipment running with hands-on troubleshooting and leadership support.

You will lead daily maintenance activities, diagnose mechanical/electrical/hydraulic/pneumatic issues, support preventive maintenance, mentor technicians, and help prioritize work orders while promoting safe, efficient plant operations.

Qualifications

• Experience repairing and maintaining injection molding machines and related equipment.
• Strong knowledge of mechanical, electrical, hydraulic, and pneumatic systems.
• Proven ability to troubleshoot and perform root cause analysis.
• Welding skills preferred; machining skills a plus.
• Prior lead or senior technician experience is preferred; leadership potential is a plus.
• Ability to balance hands-on work with administrative responsibilities.

Responsibilities

• Act as backup to the Maintenance Supervisor during absences and assist with day-to-day leadership of the maintenance team.
• Coordinate daily maintenance activities to minimize downtime and support production.
• Diagnose and repair mechanical, electrical, hydraulic, and pneumatic issues on injection molding machines and equipment.
• Lead root cause analyses to prevent repeat failures and improve reliability.
• Support preventive maintenance programs to improve uptime and equipment life.
• Provide hands-on maintenance support, including repairs of machines and equipment.
• Mentor and develop maintenance technicians and reinforce standards and problem-solving.
• Review time sheets, work orders, and maintenance priorities with the team.
• Collaborate with production, tooling, and management to align with plant priorities.

Skills

Maintenance leadership

Troubleshooting

Electrical systems

Mechanical systems

Hydraulic systems

Pneumatic systems

Root cause analysis

Leadership potential

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