Top 3 Junior software developer Jobs in O'fallon, Mo

Junior Developer
Secure24 —Earth City, MO
- $58,000 - $65,000 a year
- Full-time
- Experience equivalent to degree accepted
- Linux
- In-person
- Health insurance
- Dental insurance
Quick Apply
8d
JUNIOR SOFTWARE DEVELOPER
MyBrand —St. Louis, MO
- Full-time
- 3 years
- Entry level
- Health insurance
- 401(k)
Quick Apply

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Junior Developer
Secure24 —Earth City, MO
Understanding of object-oriented programming principles. Interest in application modernization and software architecture. Basic Git version control knowledge.
$58,000 - $65,000 a year
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8d

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Junior Developer

Secure24 -
Earth City, MO

Quick Apply

Job Details

Full-time
$58,000 - $65,000 a year
8 days ago

Benefits

Health insurance
Dental insurance
401(k)
Paid time off
Vision insurance
401(k) matching
Opportunities for advancement
Life insurance

Qualifications

Jira
Teamwork
Node.js
Git
Version control systems
Implementing APIs
Linux
Technical troubleshooting support

Full Job Description

We are seeking a motivated Junior PHP Developer to join our team and help modernize our internal CRM platform. Our application is actively being migrated to CodeIgniter 4, providing an excellent opportunity to gain hands-on experience working with both legacy and modern PHP applications.

You will work closely with senior developers and report directly to the Director of Technology while contributing to meaningful projects that impact daily business operations.

Responsibilities

Assist in modernizing legacy PHP applications using CodeIgniter 4
Help refactor existing code into a maintainable MVC architecture
Develop and maintain internal CRM features and functionality
Support REST API integrations and development
Work with MySQL/MariaDB databases to improve application performance
Troubleshoot bugs and resolve issues in production systems
Participate in code reviews and collaborative development efforts
Learn and contribute to architectural improvements and new feature development
Support business automation and operational workflow enhancements

Required Qualifications

1–2 years of professional PHP development experience (or equivalent internship/project experience)
Basic experience with PHP frameworks such as CodeIgniter, Laravel, or similar MVC frameworks
Understanding of object-oriented programming principles
Familiarity with MySQL or MariaDB databases
Experience working with REST APIs
Basic Git version control knowledge
Strong problem-solving and troubleshooting skills
Eagerness to learn and work within complex business systems

Nice to Have

Experience with CodeIgniter or CodeIgniter 4
Exposure to legacy PHP applications
JavaScript and jQuery experience
React or Vue experience
Familiarity with Node.js and NPM
Basic Linux command-line experience
Exposure to Agile development processes or Jira
Interest in application modernization and software architecture

What You'll Gain

Hands-on experience modernizing a large-scale business application
Mentorship from experienced developers
Exposure to modern PHP development practices and architecture
Experience working with APIs, databases, and business automation systems
Opportunities for technical growth and career advancement

If you're a developer who enjoys learning, solving problems, and improving existing systems, we'd love to hear from you.

Pay: $58,000.00 - $65,000.00 per year

Benefits:

401(k)
401(k) matching
Dental insurance
Health insurance
Life insurance
Paid time off
Vision insurance

Work Location: In person

Quick Apply

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junior software developer jobs in o'fallon, mo

Junior Developer

JUNIOR SOFTWARE DEVELOPER

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