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It Support Engineer

Wentzville,MO

521 It Support Engineer jobs in Wentzville,MO

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Senior Site Reliability Engineer, Performance Engineering

Mastercard

O Fallon, MO 63368

~ 14 min OnsiteEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

  • Advanced knowledge of web applications and distributed systems infrastructure.
  • Excellent verbal and written communication skills for audiences with varying levels of technical acumen.
  • Experience with performance bottleneck analysis and system design for scale.
  • Experience with Java Virtual Machine internals and garbage collection tuning.
  • Experience with one or more of the following: database internals, server or operating system internals, storage system internals, or performance scaling for related platforms.
  • Experience implementing automated performance regression test suites for low-latency, high-throughput financial applications.
  • Experience analyzing performance bottlenecks across application code, databases, cache layers, data stores, servers, networks, messaging queues, and streaming platforms.
  • Experience analyzing issues holistically, from edge components through application tiers and databases.
  • Experience working directly with internal customers, resolving issues and providing performance engineering leadership.
  • Working knowledge of AI-assisted development and analysis techniques, including prompt-driven script generation, automation workflow creation, test result summarization, and root cause analysis support.
  • Bachelor's degree in Computer Science, Computer Systems, Information Technology, or a related field, or equivalent practical experience.
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New, Posted 22 hours ago
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Real-Time Software Engineers (Associate or Experienced)

Boeing

Saint Charles, MO 63302

~ 25 min OnsiteHealth InsuranceRetirement Benefit

  • Ability to obtain a U.S. secret security clearance
  • Bachelor's degree
  • 3+ years of experience programming in C, C++ or Ada
  • 3+ years of experience in real-time embedded software development
  • 3+ years of experience in developing software using Object Oriented principles
  • 3+ years of experience working in a team environment
  • Export Control Requirements: 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.
  • Security Clearance: This position requires the ability to obtain a U.S. Security Clearance for which the U.S. Government requires U.S. Citizenship. An interim and/or final U.S. Secret Clearance Post-Start is required.
  • Visa Sponsorship: Employer will not sponsor applicants for employment visa status.
  • Education: Bachelor's Degree or Equivalent Required
  • Shift: This position is for 1st shift
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New, Posted 23 hours ago
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Flex Truck Driver - Class A - Penske Logistics

Penske Logistics

Bridgeton, MO 63044

$120,000/yr
$10,000 bonus
Requires TravelHealth InsurancePaid Time OffRetirement Benefit

  • Valid Class A CDL
  • Applicants must be domiciled in the U.S. and licensed in their state of residence
  • Currently hold, or ability to obtain, a non-excepted interstate DOT medical card
  • 1 year of documented tractor-trailer experience in the last 3 years required, or 2 years of documented tractor-trailer experience in the last 5 years
  • 3 years DMV/MVR record with two or fewer moving violations or accidents
  • English language proficiency
  • Work the required schedule, work at the specific location required, complete Penske employment application, submit to a background investigation (to include past employment, education, and criminal history) and drug screening required
  • This position is regulated by the Department of Transportation or designated as safety sensitive by the company, and the ability to work in a constant state of alertness and in a safe manner is required
  • The associate must be able to see and hear
  • The associate must be able to lift and/or move up to 50lbs/23kg and may occasionally lift and/or move up to 100lbs/45kg
  • The associate must be able to legally operate a motor vehicle and safely and frequently enter/exit the vehicle as well as the rear cargo area
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Avionics Installer III

Gulfstream Aerospace Corporation

Chesterfield, MO 63006

$27.15-$33.51/hr
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Direct Support Professional

Help at Home

Moscow Mills, MO 63362

$17/hr
~ 20 min OnsiteFlexible ScheduleHealth InsurancePaid Time Off

  • A HS Diploma or GED
  • A valid driver's license
  • CPR/First Aid certified or willing to obtain prior to employment
  • Access to insured and reliable transportation
  • Recognition of the needs of others, and the ability to build relationships with people from different backgrounds
  • Flexibility, adaptability, and willingness to spend evenings and weekends caring for your clients with dignity, patience, and compassion
  • Dedication to professional development, including organizational and state-required training
  • Caregivers must comply with state background screening requirements.
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Side gig: Earn at least $1455 in your first 135 trips driving, guaranteed.

Uber

Brussels, IL 62013

Flexible Schedule

  • 21 years old or older
  • A 4-door vehicle
  • A valid U.S. driver's license and vehicle insurance
  • At least one year of driving experience in the U.S. (3 years if you're under 23 years old)
SmartExplore AI is experimental.
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seasoned.co
Shift Leader - $16.00-$17.50/hr - Ellisville - Urgently Hiring

Taco Bell

Ballwin, MO 63011

$16-$17.50/hr
Urgently HiringFlexible Schedule
New, Posted 8 hours ago
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Customer Support Representative

Spectrum

Bridgeton, MO 63044

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Entry-level Lube Tech/Technician

Valvoline Instant Oil Change

Saint Charles, MO 63304

$16.75/hr
~ 25 min OnsiteHealth InsurancePaid Time OffRetirement Benefit

  • An eagerness to learn, a friendly attitude, and a desire to be part of a customer-focused team
  • Schedule flexibility (Weekend availability is likely, but we ensure you don't work late nights or holidays)
  • This role requires the ability to review, read, and understand written and digital training materials, safety procedures, labels, and operational instructions
  • English fluency in reading, writing, and speaking
  • Stand for up to 8 hours, climb stairs, and occasionally lift up to 50 pounds
  • Crouch, bend, twist, and work with your hands above your head
  • Be comfortable working in a non-climate-controlled environment
SmartExplore AI is experimental.
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New, Posted 15 hours ago
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Personal Care Attendant

Americare Senior Living

Moscow Mills, MO 63362

~ 20 min OnsiteFlexible ScheduleEducation AssistanceHealth InsurancePaid Time Off

  • Must be at least 18 years of age
  • High school diploma or equivalent
  • CPR and BLS certifications are a plus — training available
SmartExplore AI is experimental.
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