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338 Engineer Summer Intern Science jobs in Saint Louis,MO

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Sales Intern - Summer 2026

Bunzl

Saint Louis, MO 63141

OnsiteRetirement Benefit

Ability to self-motivate and work independently, with minimal supervision
Bachelor's degree in progress, (Junior standing at an accredited University);
Outstanding customer service skills and the ability to work in a team setting with a diverse group of employees, managers, and outside parties
Exceptional analytical, organizational, and oral/written communication skills

SmartExplore AI is experimental.

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Associate Systems Engineer

Boeing

Saint Louis, MO 63134

OnsiteEducation AssistanceHealth InsuranceRetirement Benefit

Applications for this position will be accepted until Mar. 01, 2026
Visa Sponsorship: Employer will not sponsor applicants for employment visa status
An interim and/or final U.S. Secret Clearance Post-Start is required
Relocation based on candidate eligibility
Shift: 1st shift
The ability to obtain a U.S. Security Clearance for which the U.S. Government requires U.S. Citizenship
2 or more years' related engineering experience
Bachelor of Science degree in Engineering, Engineering Technology (including Manufacturing Technology), Computer Science, Data Science, Mathematics, Physics, Chemistry or non-US equivalent qualifications directly related to the work statement
Education: Bachelor's Degree or Equivalent Required

SmartExplore AI is experimental.

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Quality Control Associate Scientist

Merck Group

Saint Louis, MO 63103

OnsiteHealth InsurancePaid Time OffRetirement Benefit

Associate degree in chemistry, Biochemistry, Biology or other life science discipline.
3+ years QC lab experience.
Bachelors degree in Chemistry, Biochemistry, Biology, or other Life Science discipline.

SmartExplore AI is experimental.

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Systems Engineer

BOOZ, ALLEN & HAMILTON

Scott Air Force Base, IL 62225

~ 36 min OnsiteEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

Ability to independently think, plan, and work at a tactical and strategic level
3+ years of experience with DoD aircraft operations and mission execution
Top Secret clearance is required
Top Secret clearance
Bachelor's degree in Engineering or Computer Science
5+ years of experience with DoD Electromagnetic Spectrum Operations
5+ years of experience in EW engineering

SmartExplore AI is experimental.

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Commit to Serve Your City Year! (Full Pay/Benefits – Academic Mentor)

City Year

Saint Louis, MO 63190

OnsiteChildcare AssistanceEducation AssistanceHealth Insurance

Be a U.S. citizen or legal permanent resident (Authorization to work in the U.S. is not sufficient. Those with DACA status unfortunately are not eligible at this time)
Agree to and complete a background check
Be 17-25 by July 1, 2025
Have a GED or high school diploma, some college experience, or college degree
Have served no more than three terms in an AmeriCorps state or national program*
Be able to begin City Year by July/August 2025 (specific start date varies by location)

SmartExplore AI is experimental.

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Advanced Manufacturing Engineering Specialist

Vertiv Group

Saint Louis, MO 63103

Onsite

Bachelor's Degree in: Data Science/Analytics/Statistics, Computer Science, Industrial Engineering, Operations Research, Manufacturing Engineering, Supply Chain / Logistics, Mathematics, Physics, or Economics (quantitative focus)
Strong proficiency in SQL, Python, R, or other data analysis tools.
Experience with ERP/MES systems, BI tools (Power BI, Tableau), and capacity planning software.
Proven experience with global manufacturing operations, footprint optimization, or capacity modeling.
Demonstrated ability to work effectively in a cross-functional environment across a diverse, global team
5 to 10 or more years of experience in data analysis, manufacturing analytics, capacity planning, or operations strategy.
Experience building analytical frameworks, scenario models, or data-driven decision tools for executives or cross-functional teams.
Expertise in statistical analysis, scenario modeling, forecasting, optimization, and KPIs for manufacturing or supply chain

SmartExplore AI is experimental.

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Manufacturing Engineer

Essex Industries

Saint Louis, MO 63143

OnsiteHealth InsurancePaid Time OffRetirement Benefit

Has knowledge of commonly-used concepts, practices, and procedures within manufacturing.
Knowledge equal to a Bachelor's degree in Mechanical, Manufacturing, or Industrial Engineering or related field and up to three years of experience; or equivalent combination of education and experience.

SmartExplore AI is experimental.

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Engineering Technician - Manufacturing

Watlow

Saint Louis, MO 63146

OnsiteEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

Good mechanical aptitude and experience troubleshooting mechanical and electrical systems
Experience in the use of various measurement tools/gauges, electrical equipment, temperature & power controls, temperature sensors, and fluid control devices
Proficiency with Microsoft Word, Excel, Outlook, and PowerPoint
Work Well within Team Environment
Good Written and Verbal Communication Skills
Well organized and maintains a detail-oriented mindset

SmartExplore AI is experimental.

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Assembly Technician

Donaldson Company

Chesterfield, MO 63017

~ 19 min Onsite

Communicate effectively with all plant employees.
Make sound decisions.
Maintain consistent high quality in work habits.
Applicants for this position must be currently and legally authorized to work in the United States without the need for current or future sponsorship (e.g., H-1B, J-1, F-1, CPT, OPT, etc.).
International relocation or remote work arrangements outside of the U.S. will not be considered.
Exhibit mechanical aptitude.
Problem solve efficiently and effectively.
Perform work within acceptable standards
Work effectively with limited supervision.
Retain knowledge of the department of operation.
Donaldson will not offer immigration sponsorship or assume sponsorship of an employment visa for this position.

SmartExplore AI is experimental.

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Owner-Direct National Account Sales Engineer

Upchurch

St Louis, MO

OnsiteHealth InsurancePaid Time Off

5+ years of experience in Mechanical, Plumbing, or Electrical sales, retrofits, or related project management.
Valid driver's license with an insurable driving record.
Comfortable climbing ladders and lifting up to 50 lbs.
Travel expectations – Weekly as needed
Ability to climb ladders and work in rooftop environments with exposure to seasonal temperatures.
Proficient in Microsoft O ice and CRM tools.
Strong organizational and communication skills.
Clear verbal communication and active listening.
Working knowledge of Mechanical, Plumbing, or Electrical systems.
Fine motor skills for typing and handling small tools/materials.
Ability to work independently and manage time effectively.

SmartExplore AI is experimental.