Senior Maintenance Technician – GMP Manufacturing

Thermo Fisher; St. Louis (MO); On-site; USD 65,000 - 95,000; Full time

Job summary

Thermo Fisher Scientific in St. Louis is seeking a Senior Maintenance Technician to maintain and optimize critical GMP facilities and equipment.

You will troubleshoot, repair and perform preventive maintenance on HVAC, water purification, compressed gases, and manufacturing equipment within a fast-paced, safety‑driven environment. You will mentor colleagues and collaborate with engineers and operations teams to ensure regulatory compliance.

Qualifications

• Highschool diploma or GED required.
• 2–3 years of maintenance experience in a pharmaceutical/medical device GMP environment is required.
• 4+ years maintenance experience in GMP environment preferred.
• Strong electrical/electronic troubleshooting including PLCs.
• Experience with Building Management Systems (BMS) and CMMS software.
• Proficient in preventive/corrective maintenance procedures and documentation.
• Excellent problem-solving, analytical and communication skills.
• Ability to lift up to 50–70 lbs and work rotating shifts, weekends, and on-call.

Responsibilities

• Perform preventive, corrective, and emergency maintenance on process and facility equipment.
• Troubleshoot and repair mechanical, electrical, instrumentation, pneumatic, hydraulic, and automated systems.
• Diagnose equipment failures and identify root causes to restore safe operation.
• Complete maintenance work orders and documentation in SAP CMMS accurately.
• Follow cGMP, safety, environmental, quality, and site procedures.
• Collaborate with Operations, Engineering, and Quality to minimize downtime and maintain readiness.
• Identify recurring issues and contribute to root cause analysis and OEE improvements.
• Provide technical guidance to technicians, contractors, and service providers.

Skills

Electrical troubleshooting

PLC systems

BMS experience

CMMS experience

Mechanical systems

Hydraulic systems

Pneumatic systems

Preventive maintenance

Documentation

Problem-solving

Hazardous materials safety

Communication skills

Windows systems

Education

Highschool diploma or GED

Maintenance certification

Tools

BMS

CMMS

SAP CMMS

Job description

Thermo Fisher Scientific in St. Louis is seeking a Senior Maintenance Technician to maintain and optimize critical GMP facilities and equipment.

You will troubleshoot, repair and perform preventive maintenance on HVAC, water purification, compressed gases, and manufacturing equipment within a fast-paced, safety‑driven environment. You will mentor colleagues and collaborate with engineers and operations teams to ensure regulatory compliance.