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Entry Level Computer Science Jobs in O Fallon, MO

Pwc

CTIO-AI Engineer-Sr Associate

Saint Louis, MO · On-site

$55K - $187K/yr

... in Computer Science, Data Processing/Analytics/Science, Artificial Intelligence and Robotics - 3 ... PwC does not intend to hire experienced or entry level job seekers who will need, now or in the ...

Accenture

Data Protection Sr. Analyst

Saint Louis, MO · Hybrid

$84K - $100K/yr

... Computer Science, or related field (or equivalent experience). * Exposure to Microsoft 365 or Azure environments preferred. * Prior internship, academic project, or entry-level experience in security ...

Pwc

AI & GenAI Data Scientist - Manager

Saint Louis, MO

$99K - $232K/yr

Management Information Systems, Computer and Information Science, Systems Engineering, Mathematics ... PwC does not intend to hire experienced or entry level job seekers who will need, now or in the ...

CannonDesign

Electrical - Entry Level

Saint Louis, MO · On-site

... science and technology. HERE'S WHAT YOU'LL DO * Under supervision, design lighting, power ... Experience in computer applications for engineering design programs (i.e. Revit, Navisworks or ...

MasterCard

Software Engineer II

O Fallon, MO

$92K - $147K/yr

A Software Engineer II is an earlycareer or entrylevel engineer who contributes to the design ... computer science, Engineering, Information Technology, or equivalent experience Foundational ...

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All JobsEntry Level Computer Science JobsEntry Level Computer Science Jobs in O'Fallon, MO

Entry Level Computer Science information

See O Fallon, MO salary details

$19.3K

$43.2K

$86.5K

How much do entry level computer science jobs pay per year?

As of Jun 9, 2026, the average yearly pay for entry level computer science in O'Fallon, MO is $43,226.00, according to ZipRecruiter salary data. Most workers in this role earn between $30,557.00 and $49,362.00 per year, depending on experience, location, and employer.

What Are Entry-Level Jobs in Computer Science?

Entry-level computer science jobs include positions that involve programming, software and app development, database administration, and the engineering of software and computer systems. You can also provide technical support, develop specialized programs for mobile phones or embedded computer systems, and work in areas such as cloud computing and machine learning. Entry-level computer science professionals typically operate as part of software development or IT teams, or they report to senior personnel and submit their work for testing and approval. Your duties and responsibilities often focus on developing, testing, or engineering a specific part of a computer-related project.

What are entry level computer science jobs?

Entry level computer science jobs are positions designed for individuals who have recently graduated with a computer science degree or have basic programming and technical skills. These roles typically require little to no prior professional experience and may include job titles such as software developer, IT support specialist, web developer, or quality assurance tester. Entry level positions offer opportunities to gain hands-on experience, learn from more experienced team members, and develop practical skills in areas like coding, debugging, and software development processes.

What types of projects or tasks can I expect to work on as an entry level computer science professional?

As an entry level computer science professional, you will typically work on tasks such as debugging code, writing simple programs or scripts, assisting with software testing, and supporting senior developers with larger projects. You may also be responsible for maintaining documentation, collaborating with team members during code reviews, and learning new technologies as needed. These experiences help you build a strong foundation and gain practical skills, setting the stage for more complex responsibilities and career advancement in the future.

What is the difference between Entry Level Computer Science vs Software Developer?

AspectEntry Level Computer ScienceSoftware Developer
Required CredentialsBachelor's in CS or related fieldBachelor's in CS or related field; coding bootcamps
Work EnvironmentTech companies, startups, IT departmentsTech firms, software companies, startups
Employer & Industry UsageEntry-level roles in various industriesDeveloping software applications across industries
Common Search & ComparisonYesYes

Entry Level Computer Science roles typically focus on foundational knowledge and may involve a variety of IT tasks, while Software Developer positions emphasize designing, coding, and maintaining software applications. Both roles often require similar educational backgrounds, but Software Developers usually have more specialized coding skills and project responsibilities.

What are the key skills and qualifications needed to thrive as an Entry Level Computer Science professional, and why are they important?

To thrive as an Entry Level Computer Science professional, you need a solid understanding of programming languages (such as Python, Java, or C++), algorithms, and data structures, typically supported by a bachelor’s degree in computer science or a related field. Familiarity with version control systems like Git, basic software development tools, and potentially certifications like CompTIA IT Fundamentals can be beneficial. Strong problem-solving abilities, attention to detail, and effective communication skills help you collaborate and adapt to new challenges. These skills are crucial for efficiently developing, testing, and maintaining software solutions in a team-oriented and rapidly evolving technical environment.
More about Entry Level Computer Science 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 Entry Level Computer Science jobs in O'Fallon, MO? For Entry Level Computer Science jobs in O'Fallon, MO, the most frequently searched job titles are:
What cities near O'Fallon, MO are hiring for Entry Level Computer Science jobs? Cities near O'Fallon, MO with the most Entry Level Computer Science job openings:
Entry Level Computer Science jobs near you
Infographic showing various Entry Level Computer Science job openings in O'Fallon, MO as of June 2026, with employment types broken down into 79% Full Time, and 21% Part Time. Highlights an 100% In-person job distribution, with an average salary of $43,226 per year, or $20.8 per hour.
Systems Programmer Analyst

Systems Programmer Analyst

Essex Industries, Inc.

Saint Louis, MO • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 11 days ago

Job description

Essex Industries is a multi-site aerospace and defense manufacturer serving military and commercial customers worldwide. The Systems Program Analyst role analyzes and resolves system issues, implements cost-effective solutions, and supports daily information systems operations while collaborating with users and enhancing systems to support decision-making.
Essential Duties:
  • Works closely with supervision or project lead.
  • Light ERP system administration, including new users, security, menus, training access, etc.
  • Monitor and helpdesk tickets to appropriate personnel.
  • Perform simple software maintenance tasks on supported systems and applications.
  • Testing and debugging of systems or software to eliminate errors.
  • Maintain and meet schedule deadline dates.
  • Act as a liaison between IS and user departments to foster and develop participation and cooperation.
  • Makes improvement suggestions for department processes and procedures.
  • Identifies and escalates issues.
  • Review and/or contribute to departmental process documentation.
  • Reads manuals, periodicals, and technical reports to stay current in industry.
  • Creates implementation support documents.
  • Works effectively with outside consultants as part of an ERP implementation.

Requirements:
  • Bachelor's degree in computer science, related software engineering/IT, or suitable degree with IT/ERP experience. Entry level to 0-2 year of related experience and/or training in application development, basic SaaS ERP system administration; or equivalent combination of education and experience.

Why Choose Essex:
  • Base Pay and Overtime Pay Eligible
  • Bonus Opportunity
  • Paid time off
  • 10 company holidays
  • Training & Development
  • Retirement Benefits - 401k matching
  • Tax-Advantaged Accounts
  • Medical, dental, vision coverage
  • Flexible Spending Account
  • Life Insurance
  • Parental Leave
  • Pet Insurance
  • Employee Assistance Program

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.

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