DAVID SIMNING
Saint Paul,MN
Summary
Highly skilled Industrial Maintenance and Electronics Technician with over 25 years of experience in automated equipment maintenance, mechanical repair, and electrical troubleshooting across manufacturing, packaging, and service industries. Proficient in PLC-controlled systems, RF heat sealers, hydraulics, pneumatics, and component-level electronics repair. Strong understanding of electrical systems, pneumatic and mechanical components with ability to read schematics and drawings. Known for his technical versatility, problem-solving skills, and hands-on ability to diagnose and repair complex systems.
Overview
29
29
years of professional experience
Work History
Independent Mechanic / Fabricator
CUSTOM AUTO MECHANIC (Self-Employed)
01.2005 - Current
- Performs full-service automotive repair and engine diagnostics for community clients.
- Skilled in mechanical teardown, part replacement, and performance tuning.
- Conducts welding, fabrication, and troubleshooting on engines and drivetrains.
- Builds a strong reputation for honesty, precision, and mechanical aptitude.
Maintenance Technician
STEINWALL INC.
Coon Rapids, MN
02.2021 - 04.2026
- Perform comprehensive building and automated machine maintenance across a large plastics manufacturing facility.
- Troubleshoot and repair injection molding, hydraulic, and pneumatic systems.
- Execute electrical diagnostics on 120V, 240V, and 480V circuits.
- Conduct preventive maintenance on production machinery and support systems.
- Fabricate replacement parts and modify existing equipment for better reliability.
- Assist with facility systems repair including lighting, HVAC, and compressed air lines.
- Support production by responding to breakdowns and ensuring rapid turnaround.
- Collaborate with supervisors and operators to maintain uptime and safety.
Maintenance Mechanic
ENVIRONMENTAL SEALER SUPPLIES LLC
01.2019 - 01.2020
- Maintained and repaired RF sealing and fluid pumping systems for sealant application.
- Performed facility and machine maintenance on hydraulic, pneumatic, and electrical systems.
- Diagnosed and resolved production equipment malfunctions quickly and efficiently.
- Fabricated and replaced worn or damaged components using welders and shop tools.
- Ensured all systems complied with maintenance schedules and safety standards.
- Assisted with small-scale installations and mechanical upgrades.
- Reported directly to management on repair priorities and PM program results.
Service Technician
TEE-JAY NORTH, INC.
01.2009 - 01.2018
- Serviced and repaired automatic sliding and swing door operators of all major brands.
- Performed top-tier troubleshooting of electrical, control, and mechanical systems.
- Replaced and rewired controls, operators, and power systems.
- Installed new automatic door systems and adjusted components for proper function.
- Maintained strong relationships with commercial clients through reliable field service.
- Managed up to 10 service calls per day, ensuring quality, speed, and accuracy.
- Trained new technicians on proper troubleshooting and repair techniques.
Machine & Shop Maintenance Technician
SUNRISE PACKAGING
01.2006 - 01.2009
- Maintained and repaired plastic vacuum forming and RF heat sealing machines.
- Serviced PLC-controlled robots, rotary turntables, and packaging systems.
- Performed both mechanical and electrical maintenance on custom production machinery.
- Conducted facility maintenance, including HVAC, lighting, and shop repairs.
- Diagnosed and rebuilt defective systems to extend machine lifespan.
- Supported production team through troubleshooting, process improvements, and part fabrication.
- Ensured preventive maintenance logs were up to date and followed safety protocols.
Service Technician
MCGANN ASSOCIATES
01.1999 - 01.2005
- Installed and serviced electronic parking and access control systems.
- Wired and programmed ticket dispensers, gate operators, and card access systems.
- Maintained and configured computer-based software and network systems.
- Troubleshot hardware and control boards to resolve system errors.
- Worked closely with clients to test, install, and repair revenue control equipment.
- Performed both field and shop-level diagnostics and component replacement.
- Recognized for technical precision and customer satisfaction.
Mechanic
UNITED TRAILER LEASING
01.1997 - 01.1999
- Performed complete repair and service on semi-trailers and heavy-duty equipment.
- Handled welding, brake systems, suspension, and lighting repairs.
- Conducted preventive maintenance on fleet trailers.
- Assisted with shop maintenance, ensuring safe and organized operations.
- Supported fleet reliability through mechanical diligence and efficiency.
Education
Associate of Applied Science - Electronics
NEI College of Technology
HS Diploma - undefined
St. Francis High School
Skills
- Electrical & Controls: PLC troubleshooting, schematic reading, wiring, RF heat sealing systems, and component-level repair
- Mechanical Systems: Hydraulics, pneumatics, fabrication, mechanical assembly, and preventive maintenance
- Facilities & Equipment: HVAC, plumbing, conveyor systems, injection molding, rotary tables, and vacuum forming
- Tools & Software: CMMS platforms, hand/power tools, lathes, welders, and diagnostic meters
- Other: Forklift certified (expired), experienced in process improvement and safety compliance
Timeline
Maintenance Technician
STEINWALL INC.
02.2021 - 04.2026
Maintenance Mechanic
ENVIRONMENTAL SEALER SUPPLIES LLC
01.2019 - 01.2020
Service Technician
TEE-JAY NORTH, INC.
01.2009 - 01.2018
Machine & Shop Maintenance Technician
SUNRISE PACKAGING
01.2006 - 01.2009
Independent Mechanic / Fabricator
CUSTOM AUTO MECHANIC (Self-Employed)
01.2005 - Current
Service Technician
MCGANN ASSOCIATES
01.1999 - 01.2005
Mechanic
UNITED TRAILER LEASING
01.1997 - 01.1999
HS Diploma - undefined
St. Francis High School
Associate of Applied Science - Electronics
NEI College of Technology