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Junior Python Developer Jobs in O Fallon, MO (NOW HIRING)

Sovereign Technologies

Junior C# Developer

Saint Louis, MO

$65K - $84K/yr

Company Description The individual in the Programmer Analyst role is responsible for using technical skills and programming experience to define and program solutions to problems and requests of ...

GDIT

Jr DevOps Engineer

Saint Louis, MO · On-site

$51.25 - $70.25/hr

As a Jr. DevOps Engineer you will help ensure today is safe and tomorrow is smarter. Our work ... Understanding of Python, Bash, and Shell scripting * Knowledge of network technologies, common ...

Stifel

AI-Application Security Engineer

Saint Louis, MO · On-site

$57 - $76.25/hr

... developer enablement through technologies such as Python, AWS services, and CI/CD pipelines ... Contribute to a strong security engineering culture by mentoring junior engineers, sharing ...

Leidos

Entry Level Software Developer

Saint Louis, MO · On-site

$57K - $104K/yr

The Leidos Maritime ASET team has an opening for a junior (entry level) software developer to work ... Applicant must possess competence with Python and JavaScript/TypeScript. Other duties include ...

Leidos

Entry Level Software Developer

Saint Louis, MO · On-site

$57K - $104K/yr

The Leidos Maritime ASET team has an opening for a junior (entry level) software developer to work ... Applicant must possess competence with Python and JavaScript/TypeScript. Other duties include ...

nimble

Data Engineer

Chesterfield, MO · On-site +1

$113K - $136K/yr

... Python or Scala code for complex transformations and data processing Support Power BI and analytics ... Maintain 99.5%+ pipeline uptime; mentor junior engineers; drive architectural improvements for ...

Nimble Solutions

Data Engineer

Chesterfield, MO · On-site

$113K - $136K/yr

... Python or Scala code for complex transformations and data processing • Support Power BI and ... Maintain 99.5%+ pipeline uptime; mentor junior engineers; drive architectural improvements for ...

Nimble Solutions

Data Engineer

Chesterfield, MO · On-site +1

$113K - $136K/yr

... Python or Scala code for complex transformations and data processing • Support Power BI and ... Maintain 99.5%+ pipeline uptime; mentor junior engineers; drive architectural improvements for ...

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Junior Python Developer information

See O Fallon, MO salary details

$22.4K

$83.2K

$128.6K

How much do junior python developer jobs pay per year?

As of Jul 13, 2026, the average yearly pay for junior python developer in O'Fallon, MO is $83,198.00, according to ZipRecruiter salary data. Most workers in this role earn between $62,600.00 and $81,400.00 per year, depending on experience, location, and employer.

What is a Junior Python Developer job?

A Junior Python Developer is an entry-level software developer who specializes in writing, testing, and maintaining code using the Python programming language. They typically work under the guidance of senior developers and assist in building applications, fixing bugs, and improving performance. Their responsibilities may include writing scripts, working with databases, and integrating third-party services. Strong problem-solving skills, knowledge of Python frameworks like Django or Flask, and familiarity with version control systems like Git are often required. Junior developers are expected to learn quickly and contribute to the development team while gaining hands-on experience.

What are the key skills and qualifications needed to thrive in the Junior Python Developer position, and why are they important?

To thrive as a Junior Python Developer, you need a solid foundation in Python programming, an understanding of computer science fundamentals, and often a relevant degree or coursework. Familiarity with version control systems like Git, basic experience with web frameworks such as Flask or Django, and knowledge of databases are commonly expected, while certifications like PCEP can be advantageous. Attention to detail, a willingness to learn, effective problem-solving, and strong communication skills are essential soft skills for this role. These competencies ensure you can contribute efficiently to software development projects, adapt to new challenges, and collaborate well within a development team.

What are the typical daily responsibilities of a Junior Python Developer?

As a Junior Python Developer, your daily tasks may include writing and testing code, fixing bugs, and participating in code reviews alongside more experienced developers. You'll often work on modules or features under the guidance of senior team members, attend stand-up meetings, and update project documentation as needed. Collaboration with frontend developers, QA testers, and project managers is common, especially when integrating systems or implementing new features. Over time, you can expect to take on more complex tasks and gradually build your expertise through mentorship and hands-on project work.

What are the most commonly searched types of Python Developer jobs in O'Fallon, MO? The most popular types of Python Developer jobs in O'Fallon, MO are:
What are popular job titles related to Junior Python Developer jobs in O'Fallon, MO? For Junior Python Developer jobs in O'Fallon, MO, the most frequently searched job titles are:
What cities near O'Fallon, MO are hiring for Junior Python Developer jobs? Cities near O'Fallon, MO with the most Junior Python Developer job openings:
Junior Python Developer jobs near you

AI Engineer

Automotive Product Consultants LLC

O Fallon, MO

Full-time

Posted 15 hours ago

Job description

Job Title: AI Developer

Location: O’Fallon, MO (On-site)

Company: Milestone Marketing Solutions

Position Overview:

We are seeking a talented and motivated AI Developer to design, build, and deploy AI-driven solutions that enhance marketing performance, automate workflows, and generate actionable insights. This role will work closely with our marketing, data, and development teams to integrate AI into client campaigns and internal systems.

Key Responsibilities:

  • Design, develop, and deploy AI/ML models for marketing applications (e.g., customer segmentation, predictive analytics, personalization engines)
  • Build and maintain data pipelines to support AI initiatives
  • Integrate AI solutions into existing marketing platforms and tools
  • Collaborate with marketing strategists to identify opportunities for AI-driven improvements
  • Optimize model performance and ensure scalability
  • Stay current with emerging AI trends, tools, and best practices
  • Document processes, models, and workflows for internal use

Required Qualifications:

  • Bachelor’s degree in Computer Science, Data Science, AI, or a related field (or equivalent experience)
  • 2+ years of experience in AI/ML development
  • Proficiency in Python and Common AI/ML frameworks (e.g., TensorFlow, PyTorch, scikit-learn)
  • Experience with data processing and analysis (SQL, Pandas, etc)
  • Understanding of APIs and system integration
  • Strong problem solving and analytical skills

Preferred Qualifications:

  • Experience in marketing technology or digital marketing analytics
  • Familiarity with NLP, recommendation systems, or generative AI
  • Experience with cloud platforms (AWS, Azure, or GCP)
  • Knowledge of MLOps and model deployment practices