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Computer Science Internship Jobs in O Fallon, IL

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 ...

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 ...

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 ...

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 ...

Wood Plc

Junior Water Resources Engineer

Saint Louis, MO

$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 ...

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

Computer Science Internship information

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.

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.

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.

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, IL? The most popular types of Computer Science jobs in O'Fallon, IL are:
What cities near O'Fallon, IL are hiring for Computer Science Internship jobs? Cities near O'Fallon, IL 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, IL as of June 2026, with employment types broken down into 7% Internship, 50% Full Time, and 43% Part Time. Highlights an 86% In-person, 7% Hybrid, and 7% Remote job distribution.

Mid Level Software Engineer

Freedom Technology Solutions Group

Saint Louis, MO • On-site

Other

Medical, Life, Retirement, PTO

Posted 16 days ago

Job description

Freedom Technology Solutions Groups is looking to add a mid level Software Engineer to the team! This position is fully onsite in St. Louis, MO.
Required Experience:

  • Demonstrated firsthand experience in at least two of the following:
    • Java, JavaScript or Python enterprise application development
    • Web services architecture, design, and development
    • Relational database design
    • Spatial database design
    • NoSQL database design
    • Micro-service architecture, design and development
    • Containerization and/or Orchestration
    • API Development
    • Cloud Native Development, AWS, Azure, Google Cloud or similar Cloud Service providers
Desired Experience:
  • Demonstrated experience in the development of customized code, scripts, modules, macro procedures, or libraries to implement specialized spatial analysis functions using languages such as Python, Java, JavaScript, PHP, C, Perl, or similar scripting and development languages.
  • Demonstrated experience in integration and tailoring of geospatial Commercial Off-The-Shelf (COTS) software applications; specialized software and database development and maintenance; integration of related specialized hardware; engineering studies to identify and remedy geodata processing bottlenecks.
  • Demonstrated experience with government and/or commercial imagery products, to include SAR or related RADAR imaging technologies.
  • Demonstrated experience working with and developing geospatial information systems (GIS) to include open-source and proprietary geospatial formats
  • Demonstrated experience in use and development with common geospatial tools, data, and operating platforms. These may include, but are not limited to:
    • Tools - Boundless Spatial suite, Remote View, PostGRES/PostGIS, Oracle Spatial and/or other geospatial databases, ArcGIS Desktop, ArcGIS Server, Image Server, and File Geodatabases.
    • Data formats including KML, KMZ, NITF, TIFF, JPEG, GeoPDF, and similar geo-related formats and data structures.
    • Operating Platforms - ESRI, OpenGeo Suite, or similar.
  • Demonstrated experience abstracting new or legacy systems via standards-based APIs to include web services. Including but not limited to Open Geospatial Consortium standards
  • Demonstrated experience in at least one of the following:
    • Developing terrain analysis visualization and algorithms.
    • Developing automated detection algorithms.
Education:
  • A Master of Science or equivalent degree in Computer Science, Engineering, Mathematics, Information Systems, Cybersecurity, or equivalent technical degree and a minimum of 2 years of experience in full stack development to include Java, Web services, Database, and micro-service development software, engineering/development, or a related area that demonstrates the ability to successfully perform the duties associated with this work.
  • Or, a Bachelor of Science or equivalent degree in Computer Science, Engineering, Mathematics, Information Systems or equivalent technical degree and a minimum of 4 years of experience in full stack development to include Java, Web services, Database, and micro-service development software, engineering/development, or a related area that demonstrates the ability to successfully perform the duties associated with this work.
  • Or, a minimum, as equivalent to education, of 6 years of experience in software engineering/development, or a related area that demonstrates the ability to successfully perform the duties associated with this work may be substituted for a technical degree.

What's in It for You?
Flexible work environment
A team mentality - work with friendly, like-minded professionals
Work with innovative, cutting edge technologies
Enjoy extremely competitive compensation and benefits
A work-life balance you can count on
Opportunities to grow and advance your career on our dime
The Benefits You Get with Freedom
Amazing benefits including matching 401k, fully paid medical, and more
Generous paid time off - including paid site closure days
Competitive salary offerings
Paid training and tuition reimbursement
Referral bonuses
Fully paid life and disability
Annual logo wear allowance
Company sponsored events (game nights, holiday party, summer party, happy hours)
Interested in learning more about Freedom and our culture? Contact us today! We're constantly hosting hiring events in our office and elsewhere, to help you get a sense of what life is like at Freedom before joining the team.
As an Equal Opportunity Employer, we do not discriminate on the basis of race, color, religion, sex, age, marital status, disability or veteran status
Applicant Federal & E-Verify Postings
VEVRAA Federal Contractor
Accessibility: If you need an accommodation as part of the employment process, please contact Human Resources at
Phone: 410-290-9035
Email: recruiting@goftsg.com
Equal Opportunity Employer, including disabled and veterans.
If you want to view the EEO Law poster, please choose your language: English - Spanish - Arabic - Chinese
If you want to view the EEO Law Supplement poster, please choose your language: English - Spanish - Chinese
If you want to view the Pay Transparency Policy Statement, please click the link: English

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