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Entry Level Developer Jobs in O Fallon, MO (NOW HIRING)

HiFyve

Manufacturing Engineer Entry Level

Saint Louis, MO · On-site

$65K - $80K/yr

HiFyve is hiring a Manufacturing Engineer (Entry-Level / New Grads) in St. Louis, MO! Salary: $65-80K/yr Shift: 1st Shift M-F Location: St. Louis, MO Job Duties and Responsibilities Design, implement ...

Boeing

Entry-Level Manufacturing Engineer

Berkeley, MO · On-site

Entry-Level Manufacturing Engineer Company: The Boeing Company Boeing Test & Evaluation (BT&E) is seeking an Entry-Level Manufacturing Engineer to join our Production Test team in Berkeley, MO . This ...

New

Maritz

Software Engineer I

Fenton, MO · On-site

What You'll Be Doing We are looking for an entry level engineer who is eager to learn and build strong technical foundations. You will work alongside senior engineers across codebases, cloud ...

Maritz

Software Engineer I

Fenton, MO · On-site

What You'll Be Doing We are looking for an entry level engineer who is eager to learn and build strong technical foundations. You will work alongside senior engineers across codebases, cloud ...

Nooter/Eriksen

Internship Application - Summer 2027

Fenton, MO · On-site

$14.25 - $18.50/hr

Lunch with entry-level engineers to get integrated with the culture * Top Golf event with entry-level engineers * Paid holidays (Memorial Day, Juneteenth, 4th of July) * ½ day Virtual Fridays , work ...

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All JobsDeveloper JobsEntry Level Developer JobsEntry Level Developer Jobs in O'Fallon, MO

Entry Level Developer information

See O Fallon, MO salary details

$27.6K

$93.8K

$225.8K

How much do entry level developer jobs pay per year?

As of Aug 7, 2026, the average yearly pay for entry level developer in O'Fallon, MO is $93,755.00, according to ZipRecruiter salary data. Most workers in this role earn between $59,400.00 and $99,100.00 per year, depending on experience, location, and employer.

What is the difference between Entry Level Developer vs Junior Software Engineer?

AspectEntry Level DeveloperJunior Software Engineer
Required CredentialsAssociate degree or coding bootcamp certificationSimilar; often an associate degree or equivalent experience
Work EnvironmentEntry-level projects, supervised tasksCollaborative team settings, basic coding tasks
Employer & Industry UsageTech companies, startups, IT departmentsSoftware firms, tech departments, consulting firms
Common Search & ComparisonYesYes

Both roles typically require similar foundational skills and certifications, with slight differences in job responsibilities. Entry Level Developers focus on learning and supporting projects, while Junior Software Engineers often have more technical responsibilities. The terms are often used interchangeably, but understanding these nuances helps in job search and career planning.

What are the key skills and qualifications needed to thrive as an entry level developer, and why are they important?

To thrive as an Entry Level Developer, you need a solid understanding of programming languages (such as Java, Python, or JavaScript), problem-solving abilities, and a relevant degree or coding bootcamp certification. Familiarity with version control systems like Git, basic knowledge of databases, and exposure to development environments or frameworks are typically required. Strong communication, teamwork, and a willingness to learn new technologies help set candidates apart. These skills and qualities are essential for contributing effectively to projects, adapting to evolving technical requirements, and collaborating within development teams.

What are some common challenges faced by entry level developers during their first year on the job?

Entry level developers often encounter challenges such as adapting to new codebases, learning company-specific development workflows, and collaborating effectively with more experienced team members. Balancing the need to ask questions with the desire to solve problems independently can also be tricky. Additionally, keeping up with frequent technology updates and understanding project requirements thoroughly are important hurdles. Most organizations offer mentorship, code reviews, and regular feedback to help new developers overcome these challenges and grow their skills quickly.

What does an entry level developer do?

As an entry-level developer, your duties are to work as part of a team to develop a piece of software or an application for a computer or web browser. Your responsibilities vary depending on your specific assignment. As an entry-level developer, you may assist in multiple aspects of the project while you determine a more specific career path. Your duties include working with QA testers to troubleshoot bugs in your programs, programming specific portions of the app or software, and collaborating with programmers, developers, and other technical professionals to understand and clarify the goals of the application.

What is an entry level developer?

Entry level developers are individuals who are starting their careers in software development, typically with less than two years of professional experience. They are responsible for writing, testing, and maintaining code under the guidance of more experienced developers. Entry level developers often work on basic coding tasks, bug fixes, and learning new technologies as part of a development team. Their role is crucial for gaining practical experience and building foundational skills needed for advancement in the tech industry.
More about Entry Level Developer jobs
What are the most commonly searched types of Developer jobs in O'Fallon, MO? The most popular types of Developer jobs in O'Fallon, MO are:
What are popular job titles related to Entry Level Developer jobs in O'Fallon, MO? For Entry Level Developer jobs in O'Fallon, MO, the most frequently searched job titles are:
What cities near O'Fallon, MO are hiring for Entry Level Developer jobs? Cities near O'Fallon, MO with the most Entry Level Developer job openings:
Entry Level Developer jobs near you
Infographic showing various Entry Level Developer job openings in O'Fallon, MO as of July 2026, with employment types broken down into 78% Full Time, 9% Part Time, and 13% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution, with an average salary of $93,755 per year, or $45.1 per hour.

Entry level C# Developer

The Timberline Group

Saint Louis, MO • On-site, Remote

Full-time

Medical, Dental, Vision, PTO

Re-posted 20 days ago

Job description

We are seeking an entry level developer (less than 2 years of full stack development experience).
The candidate should be familiar with developing web applications using:
  • C#
  • .NET
  • SQL Server
  • Entity
  • JQuery
Knowledge of MVC is a plus.
What can we offer?
  • 100% premium-paid medical insurance for employee-only-coverage
  • 100% premium-paid dental insurance for employee-only-coverage
  • 100% premium-paid vision insurance for employee-only-coverage
  • Premium assistance for dependent medical/dental/vision insurance
  • Paid Time Off (PTO)
  • Paid Holidays
  • Educational assistance, some certifications and professional memberships paid
  • Professional Referral Program

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