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Computer Science Internship Jobs in O Fallon, MO

Sargent & Lundy

Civil Engineer - Mid-Level

Clayton, MO · Hybrid

$69K - $99K/yr

Related engineering internship or co-op work experience. * Successful completion of the ... in Computer Science, Artificial Intelligence, Software Engineering, or related fields that helps ...

Sargent & Lundy

Civil Engineer - Mid-Level

Clayton, MO · Hybrid

$69K - $99K/yr

Related engineering internship or co-op work experience. * Successful completion of the ... in Computer Science, Artificial Intelligence, Software Engineering, or related fields that helps ...

Sargent & Lundy

Civil Engineer - Mid-Level

Clayton, MO · On-site

$69K - $99K/yr

Related engineering internship or co-op work experience. * Successful completion of the ... in Computer Science, Artificial Intelligence, Software Engineering, or related fields that helps ...

BJC HealthCare

MT/MLS II - Microbiology

Saint Louis, MO · On-site

$28.30 - $47.03/hr

As a Medical Laboratory Scientist at BJC Healthcare, you play a crucial role in the delivery of ... interns, fellows and other medical professionals. Recognizing its excellence in nursing care ...

Actalent

Intern-Field

Creve Coeur, MO

$16.50/hr

This internship places a strong emphasis on sales, giving interns direct exposure to lead ... sciences consultants and more than 4,500 clients across the U.S., Canada, Asia, and Europe ...

Wood Plc

Junior Water Resources Engineer

Saint Louis, MO · On-site

$76K - $105K/yr

... computer modeling, conducting field investigations, assisting in analysis and design studies ... Master of Science qualification preferred. Classwork or job/internship in the following knowledge ...

Actalent

Intern-Field

Creve Coeur, MO · On-site

$16.50/hr

This internship places a strong emphasis on sales, giving interns direct exposure to lead ... sciences consultants and more than 4,500 clients across the U.S., Canada, Asia, and Europe ...

BJC HealthCare

MT/MLS II - Microbiology

Saint Louis, MO · On-site

$28.30 - $47.03/hr

As a Medical Laboratory Scientist at BJC Healthcare, you play a crucial role in the delivery of ... interns, fellows and other medical professionals. Recognizing its excellence in nursing care ...

Esri

Software Development Engineer I

Saint Louis, MO · On-site

$75K - $129K/yr

Bachelor's degree in Computer Science, Mathematics, Geographic Information Systems (GIS), or STEM related field Recommended Qualifications * Experience with one or more of the following technologies:

Mastercard, Inc.

Software Engineer ||

O Fallon, MO · On-site

All About You - Strong foundation in algorithms, data structures, and core computer science ... Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty ...

MasterCard

Software Engineer ||

O Fallon, MO

All About You - Strong foundation in algorithms, data structures, and core computer science ... Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty ...

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All JobsComputer Science JobsComputer Science Internship JobsComputer Science Internship Jobs in O'Fallon, MO

Computer Science Internship information

What do you do as a computer science intern?

A computer science intern typically assists with software development, coding, testing, and debugging projects. They may work with programming languages like Python, Java, or C++, and often collaborate with teams to gain practical experience in software engineering and problem-solving. Interns may also participate in code reviews and learn about development tools and workflows.

What is the difference between Computer Science Internship vs Software Developer Intern?

AspectComputer Science InternshipSoftware Developer Intern
Required CredentialsTypically pursuing or recent graduate in CS or related fieldSame as CS internship, often students or recent grads
Work EnvironmentVaries across tech companies, research labs, startupsPrimarily software development teams in tech firms
Employer & Industry UsageUsed across academia, industry, research projectsPrimarily in software development companies and tech industry
Common Search & Comparison IntentUnderstanding internship opportunities in CSComparing software development internship roles

Both Computer Science Internships and Software Developer Internships target students or recent graduates interested in tech. While CS internships may include research, data analysis, or broader technical roles, Software Developer Internships focus specifically on coding and software creation. The choice depends on your career goals and the specific skills you want to develop.

Where can I do my internship as a computer science student?

Computer science students can pursue internships at technology companies, startups, research institutions, or through university programs. Internships often involve working with programming languages, software development, or data analysis, and may require prior knowledge of tools like Git or Python.

What are the key skills and qualifications needed to thrive as a Computer Science Intern, and why are they important?

To thrive as a Computer Science Intern, you generally need foundational knowledge in programming, algorithms, and data structures, often supported by progress toward a computer science degree. Familiarity with coding languages such as Python, Java, or C++, as well as experience using version control systems like Git, is typically expected. Strong problem-solving abilities, eagerness to learn, and effective communication skills help interns stand out in collaborative environments. These skills and qualities are essential because they enable interns to contribute meaningfully to projects, adapt to new technologies, and work efficiently within a development team.

What types of projects do Computer Science interns typically work on, and how much autonomy can I expect?

Computer Science interns often contribute to real-world projects such as developing new software features, debugging code, automating processes, or supporting infrastructure. While the level of autonomy varies by company, interns are generally given meaningful tasks and encouraged to collaborate with senior engineers and cross-functional teams. You'll likely participate in code reviews, agile sprints, and team meetings, gaining hands-on experience and feedback. Many organizations assign mentors to guide interns, helping them balance independence with structured learning and support.

Is 23 an hour good for an internship?

For a computer science internship, $23 per hour is generally considered above average, as many internships pay between $15 and $20 an hour. This rate may reflect the level of skills, location, and the company's budget, and it often includes opportunities to gain valuable experience with programming languages and tools like Python or Java. However, internship pay varies widely depending on the industry and region.

What Are Internship Opportunities in Computer Science?

An internship in computer science provides on-the-job training for students who study computer science. Your duties in this program depend on the focus on the internship. Some interns get experiencing coding and developing software, applications, or website user interfaces. As an intern, you work under the direction of programming and development professionals. Your responsibilities include writing lines of code, testing and debugging software, learning computer languages in a realistic setting, and functioning as part of a team. Other computer science internships focus on providing technical support, cybersecurity services, or administration services as part of an IT team.

Which internship is best for a CS student?

The best internship for a CS student depends on their interests and career goals, but generally, internships at reputable tech companies or research institutions that offer hands-on experience in programming, software development, or data analysis are valuable. Look for opportunities that provide mentorship, skill development, and exposure to real-world projects, often requiring proficiency in languages like Python, Java, or C++ and relevant technical certifications. These internships can enhance your resume and prepare you for full-time roles in the tech industry.

What is a computer science internship?

A computer science internship is a temporary position that allows students or recent graduates to gain practical experience in the field of computer science. Interns typically work on real-world projects, assisting with programming, software development, data analysis, or IT support under the supervision of experienced professionals. These internships provide valuable hands-on skills, networking opportunities, and insight into potential career paths within technology industries.
More about Computer Science Internship jobs
What are the most commonly searched types of Computer Science jobs in O'Fallon, MO? The most popular types of Computer Science jobs in O'Fallon, MO are:
What are popular job titles related to Computer Science Internship jobs in O'Fallon, MO? For Computer Science Internship jobs in O'Fallon, MO, the most frequently searched job titles are:
What cities near O'Fallon, MO are hiring for Computer Science Internship jobs? Cities near O'Fallon, MO with the most Computer Science Internship job openings:
Computer Science Internship jobs near you
Infographic showing various Computer Science Internship job openings in O'Fallon, MO as of July 2026, with employment types broken down into 1% As Needed, 83% Full Time, 13% Part Time, and 3% Contract. Highlights an 82% Physical, 1% Hybrid, and 17% Remote job distribution.
Transmission Line Engineer 3 - Grid

Transmission Line Engineer 3 - Grid

Sargent & Lundy

Clayton, MO • On-site

$74K - $113K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 10 days ago

Job description

Description
This position allows for a hybrid work schedule with a mix of work spent in office and working remote from home. This position is based in our Clayton, Missouri office, located within the St. Louis metropolitan area.
This position will offer you the ability to directly apply your knowledge of transmission line engineering including, conductors, hardware, insulation, structures, foundations and electrical principles to:
  • Design transmission lines in the 69kV to 765kV range.
  • Perform structural analysis and design of pole, lattice, framed, and guyed structures.
  • Perform foundation designs.
  • Perform conductor selection studies, shielding, grounding and induction studies.
  • Develop cost estimates and schedules and prepare specifications for the procurement of transmission line materials and construction.
  • Specify transmission line components.
  • Model transmission lines in PLS-CADD, determine right of way requirements, calculate conductor sags, and develop transmission line plan and profile drawings.
  • Review vendor submittals.

Qualifications
We do not sponsor employees for work authorization in the U.S. for this position.
Essential skills and experience:
  • This position requires a degree from an ABET-accredited engineering program.
  • Related engineering, internship or co-op work experience.
  • Proficiency with PLS-CADD and PLS-POLE.
  • Three or more years related experience in transmission line engineering.
  • Knowledge of the practical application of engineering principles including basic transmission line engineering.
  • Knowledge of design techniques, tools, and principles involved in the production of technical plans, drawings, and models.
  • Proficiency with MS Office applications.
  • Excellent written and verbal communication skills.

Valued but not required skills and experience:
  • Successful completion of the Fundamentals of Engineering (FE) exam, and designation as an Engineer in Training.
  • Proficiency with any of the following programs: PLS-TOWER, SAG10, LPILE, MFAD, ArcGIS, CDEGS, AutoCAD, Microstation.
  • Experience in writing and providing support documentation for engineering calculations.
  • Familiarity with design codes and standards such as NESC, IEC, CSA, IEEE, ANSI, IBC, ASCE 7, AISC, and ACI 318.

AI & Automation at Sargent & Lundy
In this role, we expect people to be willing or able to solve problems using modern tools:
  • You are expected to take engineering problems from issue to solution using data and modern tools such as automation and AI to improve workflows, reduce rework, and deliver cost-effective designs.
  • Many engineers in these roles build or use automation to create calculations, summarize technical documents, or draft design documentation, including appropriate use of agentic AI tools, with strong engineering judgment and verification of results.
  • Programming or scripting (e.g., Python, MATLAB, advanced Excel) to automate calculations, design checks, reporting, or data transformation is valued but not required.
  • We also value additional learning, such as a minor, certificate, or other training in Computer Science, Artificial Intelligence, Software Engineering, or related fields that helps you apply automation or agentic AI to real engineering problems.

Award-Winning Benefits
At Sargent & Lundy, we care about the health and well-being of our employees. Our commitment extends beyond the workplace, offering comprehensive healthcare plans and generous paid time off to support our team members in every aspect of their lives. We understand the importance of work-life balance, which is why we are proud to provide competitive, award-winning benefits. Our dedication to employee satisfaction has earned us the prestigious Top Workplaces Culture Excellence Award for compensation and benefits in 2022, 2023, and 2024.
Health & WellnessFinancial BenefitsWork-Life Balance
  • Health Plans: Medical, Dental, Vision
  • Life & Accident Insurance
  • Disability Coverage
  • Employee Assistance Program (EAP)
  • Back-Up Daycare
  • FSA & HSA
  • 401(k)
  • Pre-Tax Commuter Account
  • Merit Scholarship Program
  • Employee Discount Program
  • Corporate Charitable Giving Program
  • Tuition Assistance
  • First Professional Licensure Bonus
  • Employee Referral Bonus
  • Paid Annual Personal/Sick Time (PST)
  • Paid Vacation
  • Paid Holidays
  • Paid Parental Leave
  • Paid Bereavement Leave
  • Flexible Work Arrangements

Compensation Range
$74,353 - $113,595
Transparency Statement
Sargent & Lundy discloses compensation ranges that comply with all local and state regulations. The total compensation package for eligible positions will include a base salary or an hourly rate and a comprehensive benefits package, reflecting our commitment to rewarding performance and supporting the overall well-being of our employees. Individuals may also be eligible to participate in our yearly discretionary bonus.
Equal Opportunity
Sargent & Lundy is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, national origin, disability status, protected veteran status, or any protected status as defined by applicable law.
Sargent & Lundy logo

About Sargent & Lundy

Sourced by ZipRecruiter

Sargent & Lundy is one of the most experienced full-service architect-engineering firms in the world. Founded in 1891, the firm is a global leader in power and energy with expertise in grid modernization, renewable energy, energy storage, nuclear power, and fossil fuels. Sargent & Lundy delivers comprehensive project services--from consulting, design and implementation to construction management, commissioning and operations/maintenance--with an emphasis on quality and safety. The firm serves public and private sector clients in the power and energy, gas distribution, industrial, and government sectors.

Industry

Civil engineering construction

Company size

1,001 - 5,000 Employees

Headquarters location

Chicago, IL, US

Year founded

1891

Social media

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