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      521 Ui Engineer jobs in O Fallon, MO

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      Senior Systems Engineer

      Spectrum

      Saint Louis, MO 63131

      ~ 34 min OnsiteUrgently Hiring

      • Bachelor's degree in Computer Science or related field, or equivalent experience
      • 1+ years system administration experience (UNIX & Netcool)
      • 1+ years database support experience
      • 1+ years enterprise application experience
      • Ability to read, write, speak and understand English
      • This role requires the ability to work lawfully in the U.S. without employment-based immigration sponsorship, now or in the future.
      SmartExplore AI is experimental.
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      Nuclear Engineer

      U.S. Navy

      Cottleville, MO 63338

      New, Posted 1 day ago
      Recommended
      iHire
      Field Engineer

      K&K Technical

      Troy, MO 63379

      $55-$60/hr
      New, Posted 1 day ago
      Recommended
      Systems Engineer

      Spectrum Careers

      Town and Country, MO 63017

      New, Posted 1 day ago
      Easy Apply
      Lead Building Engineer

      JLL

      Saint Louis, MO 63134

      ~ 34 min OnsiteHealth InsurancePaid Time OffRetirement Benefit

      • 5+ years of experience in facility/plant engineering maintenance
      • 5+ years of experience in supervision/leadership roles
      • 2+ years of trade schooling in electrical system design, refrigeration, and HVAC
      • Exposure to HVAC, fluid handling/pumping, fluid filtering, mechanical systems, welding, and electrical systems engineering and operation with ability to analyze system operations, determine causes of problems, and take corrective action
      • Ability to effectively use computers and computer programs including Microsoft Office Suite with skill in using the Internet to navigate web-based applications
      • Excellent written and verbal communication skills with physical ability to lift 50 pounds, bend, sit, kneel, squat, stand, reach, and work in various environmental conditions
      SmartExplore AI is experimental.
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      Mechanical Engineer II - Thermal Systems

      Leonardo DRS

      High Ridge, MO 63049

      ~ 42 min OnsiteFlexible ScheduleHealth InsurancePaid Time OffRetirement Benefit

      • Bachelor's Degree in mechanical engineering, chemical engineering, or related technical field
      • Comfortable and competent writing and creating technical documentation
      • Competent using MS Office, especially Excel
      • Experience designing and analyzing mechanical components, systems and equipment, preferably HVAC&R; (air conditioning, air handling, chillers and refrigeration) equipment
      • Experience designing, selecting components and working with fluid handling systems including pumps, control valves, fittings, and/or other fluid handling systems
      • Experience using or designing LabView systems
      • Experience designing defense products, especially for the US Navy
      • U.S. Citizenship required.
      SmartExplore AI is experimental.
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      Senior Full Stack Engineer

      Outlier

      O'Fallon, MO

      $50/hr

      • 2+ years of experience in backend engineering, AI automation, or complex systems integration
      • Proven ability to build and maintain production-grade software with modular separation (e.g., distinct services for data parsing, logic processing, and reporting)
      • Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases
      • Practical experience building for live, non-mocked environments and handling multi-turn system interactions.
      • Outstanding attention to detail and the ability to provide clear, high-density technical feedback on complex system behaviors
      • This is a 1099 contract opportunity on the Outlier.ai platform
      • You must be authorized to work in your country of residence
      • If you are an international student, you may be able to sign up for Outlier if you are on a visa
      SmartExplore AI is experimental.
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      Senior Manufacturing Engineer

      Watlow

      Saint Louis, MO 63146

      ~ 34 min OnsiteEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

      • Bachelor's degree in engineering with 5+ years of related engineering experience OR Technical degree/certificate with 10+ years' related experience.
      • Typically 5+ years of experience in manufacturing engineering or closely related roles, with evidence of increasing scope and impact.
      • Demonstrated track record of reducing scrap, improving throughput, and/or deploying equipment/automation in a production environment.
      • Experience leading cross-functional projects from concept through implementation.
      • Experience with troubleshooting electrical and mechanical issues in manufacturing equipment.
      SmartExplore AI is experimental.
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      New, Posted 12 hours ago
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      Equipment & Tool Designer (Asset Design)

      Boeing

      Saint Louis, MO 63134

      ~ 34 min OnsiteHealth InsuranceRetirement Benefit

      • 3 to 7 years of tool shop or tool fabrication experience.
      • 3 to 5 years of CAD/CAM experience using SolidWorks, Inventor, Siemens NX, or CATIA
      • Fluent in all Microsoft Office applications
      • This position must meet U.S. export control compliance requirements. To meet U.S. export control compliance requirements, a "U.S. Person" as defined by 22 C.F.R. §120.62 is required. "U.S. Person" includes U.S. Citizen, U.S. National, lawful permanent resident, refugee, or asylee.
      • Drug Free Workplace: Boeing is a Drug Free Workplace where post offer applicants and employees are subject to testing for marijuana, cocaine, opioids, amphetamines, PCP, and alcohol when criteria is met as outlined in our policies.
      SmartExplore AI is experimental.
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      New, Posted 1 day ago
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      Assembler - Hiring Now

      SPX

      Pacific, MO 63069

      ~ 42 min OnsiteEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

      • One to three months related experience and/or training
      • Employee is regularly required to stand; use hands to finger, handle, or feel and reach with hands and arms.
      • The employee is frequently required to walk and talk or hear.
      • The employee is occasionally required to sit; climb or balance and stoop, kneel, crouch, or crawl.
      • The employee must regularly lift and /or move up to 10 pounds and occasionally lift and/or move up to 25 pounds.
      • Specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, depth perception and ability to adjust focus.
      • Employee is occasionally exposed to moving mechanical parts; fumes or airborne particles; risk of electrical shock and vibration.
      • The noise level in the work environment is usually very loud.
      SmartExplore AI is experimental.
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