Lead Industrial Refrigeration Technician
Platte Valley Protein Co. · Omaha, NE
Mar, 2021 · Present
• Maintain a 3,800 TR two-stage ammonia system with 14 screw compressors, evaporative condensers and 60+ evaporators across a 410,000 sq ft beef plant
• Cut unplanned refrigeration downtime 37% by rebuilding the PM schedule in the CMMS and adding vibration and oil-analysis trending
• Lead PSM mechanical-integrity inspections, valve tagging and relief-valve replacement for OSHA 1910.119 and EPA RMP audits with zero findings in 2023 and 2024
• Commissioned a 450 TR low-charge packaged ammonia unit, reducing plant charge by 6,200 lb
• Train and sign off 8 refrigeration operators on line breaking, oil draining and emergency shutdown procedures
Refrigeration Technician II
Heartland Cold Storage · Council Bluffs, IA
Jun, 2017 · Feb, 2021
• Operated and serviced a 2,100 TR ammonia system serving -20°F blast freezers and 28 docks
• Overhauled reciprocating and screw compressors, replaced shaft seals and calibrated slide-valve controls
• Reduced energy use 11% by resequencing compressors and optimizing condenser fan VFDs
• Responded to ammonia leak alarms as an on-site HAZMAT technician level responder
Refrigeration Apprentice
Midlands Dairy Cooperative · Lincoln, NE
Aug, 2015 · May, 2017
• Logged daily system readings, purged non-condensables and drained oil under journeyman supervision
• Assisted with coil defrost tuning and pump-recirculation system maintenance
• Completed 2,000+ hours of on-the-job training and RETA coursework