Manufacturing / Production Jobs in O'Fallon, Missouri

Marlen International in Riverside, MO is seeking an experienced Welder to build stainless steel food processing machinery. You will apply GMAW and GTAW techniques,...

Overview - Find your future at National Beef! - Are you interested in working a full - time work week in only 3 ½ Days, then National Beef Leathers of St. Joseph,...

Smithfield Foods, Inc. is seeking a production supervisor to lead on the plant floor, ensuring safety, quality, and efficiency across shifts. You will supervise hourly...

Position: CNC Manufacturing Engineer – High - Volume Scroll & Component - Copeland, a global climate technologies company, is seeking a Manufacturing Engineer in...

Charles Industries, An Amphenol Company in Missouri is seeking a Manufacturing Engineer to design, develop, and optimize manufacturing processes. This role is crucial...

Prestige Staffing Services is seeking an experienced Manufacturing Engineer for a direct hire opportunity in Missouri. The role focuses on plant and equipment layout...

Jackson, United States | Posted on 10/13/2026 - Prestige Staffing Services is seeking an experienced Manufacturing Engineer for a direct hire opportunity with...

Position: Lead AI Platform Engineer - Open Weight Models & Security - Mastercard Inc. is seeking an experienced AI platform engineer to design and operate...

J&J Snack Foods Corp. is seeking a Shift Supervisor to lead the packing department, ensuring yield, efficiency, safety, and quality in daily operations. You will...

Abb Vie Inc. is seeking a hands - on pharmaceutical manufacturing technician to perform filter and equipment sterilisation, unit dose batch preparation, and related...