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

CACI

Junior Systems Integrator

Saint Louis, MO · On-site

$58K - $115K/yr

Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph ... Familiarity with scripting (Python, Bash) or automation concepts. Strong attention to detail and ...

Sovereign Technologies

Junior C# Developer

Saint Louis, MO · On-site

$63K - $82K/yr

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 varying difficulty with ...

Sovereign Technologies

Junior C# Developer

Saint Louis, MO · On-site

$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 ...

CEdge Inc.

Jr Software Developer

Saint Louis, MO · On-site

$63K - $82K/yr

CEdge has an opportunity for a Junior Software Developer , located in Saint Louis, MO. If you are ready to work alongside World Renowned Technology experts, and carry the skills below, this is the ...

CEdge Inc

Jr Software Developer

Saint Louis, MO · On-site

$63K - $82K/yr

... Developer , located in Saint Louis, MO. If you are ready to work alongside World Renowned ... Contribute as a Junior Software Developerwithin an Agile/Scrum team to advance the development ...

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 ...

CACI

Senior Application Developer

Saint Louis, MO · On-site

$75K - $158K/yr

Mentor mid-level and junior developers and contribute to engineering standards. Qualifications ... Expert-level development in Java, Python, or both, including modern web frameworks. Experience ...

ITTConnect

Senior AI Engineer (Java)

Saint Louis, MO · On-site

$117K - $154K/yr

Develop integrations between Java applications and Python-based AI/ML or model-serving services ... Mentor junior and offshore engineers and promote engineering best practices. Requirements * 10+ ...

ITTConnect

Senior AI Engineer (Java)

Saint Louis, MO · On-site

$121K - $159K/yr

Develop integrations between Java applications and Python-based AI/ML or model-serving services ... Mentor junior and offshore engineers and promote engineering best practices. Requirements 10+ years ...

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 ...

Wipro Technologies

Kafka Developer

O Fallon, MO · On-site

$60K - $135K/yr

Apply SRE principles to improve reliability, availability, and performance * Drive DevOps & ... Scripting- Shell, Python * Event Management tools -Splunk, Dynatrace, Promethius * Cloud ...

CACI

DevOps Engineer - Senior

Saint Louis, MO · On-site

$98K - $206K/yr

Mentor junior and mid-level engineers while promoting DevOps best practices across the program ... Strong experience with Linux administration, scripting (Python, Bash, or PowerShell), and Git-based ...

Meridian Systematics

Cloud Engineer

Saint Louis, MO · On-site

$52.75 - $70.50/hr

... * DevOps & Automation: Automate service deployments, build CI/CD pipelines, and support ... Go, Python, Ruby, or Java. * Web basics: HTML, CSS, Markdown. * AWS Certified Cloud Practitioner ...

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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 Sep 15, 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?

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 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 key skills and qualifications needed to thrive in the junior Python developer position?

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.

Is there a demand for junior Python developers?

There is strong demand for junior Python developers across various industries, including web development, data analysis, and automation. Companies seek candidates with basic programming skills, knowledge of frameworks like Django or Flask, and familiarity with version control tools such as Git. Entry-level positions are available in both startups and established organizations, reflecting Python's popularity and versatility.

What does a junior Python developer do?

A junior Python developer writes, tests, and maintains Python code for software applications under supervision. They often work on tasks such as debugging, implementing features, and collaborating with team members using tools like version control systems. Basic knowledge of programming concepts and familiarity with frameworks like Django or Flask are typically required.

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
Infographic showing various Junior Python Developer job openings in O'Fallon, MO as of August 2026, with employment types broken down into 1% Internship, 83% Full Time, 11% Part Time, and 5% Contract. Highlights an 76% Physical, 7% Hybrid, and 17% Remote job distribution, with an average salary of $83,198 per year, or $40 per hour.

entry level Java spring boot Developer/Jr. Data Scientist (Remote)

Saint Louis, MO • On-site

SynergisticIT
IT Services • 11 - 50 employees
Learn more about SynergisticITexternal

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

Synergisticit Job Opportunities

Since 2010 SynergisticIT has helped jobseekers get employed in the tech job market by providing candidates the requisite skills, experience, and technical competence to outperform at interviews and at clients. The tech job market has been affected by massive layoffs and since 2021 there have been more than 600,000 tech layoffs. The job market is hyper competitive. For 1 position 500-1000 candidates or more are applying and laid off job seekers are also competing for entry level job positions.

We regularly interact with the top tech companies to give our candidates a competitive advantage. We at Synergisticit understand the problem of the mismatch between employer's requirements and employee skills and that's why since 2010 we have helped 1000's of candidates get jobs at technology clients like apple, google, Paypal, western union, visa, walmart lab s etc to name a few. We are continuously looking for entry-level software programmers, Java full stack developers, Python/Java developers, data analysts/data scientists, data engineers, machine learning engineers for full time positions with clients. Who should apply? Recent computer science/engineering/mathematics/statistics or science graduates or people looking to switch careers or who have had gaps in employment and looking to make their careers in the tech industry.

We need data science/machine learning/data analyst and Java full stack candidates. Preferred skills for Java/full stack/devops positions include a bachelors degree or masters degree in computer science, computer engineering, electrical engineering, information systems, IT knowledge of core Java, javascript, C++ or software programming. Spring boot, microservices, Docker, Jenkins, Github, Kubernates and REST API's experience.

For data science/data analyst/AI/machine learning positions preferred skills include an associate or bachelors degree or masters degree in computer science, computer engineering, electrical engineering, information systems, IT, statistics, mathematics or having good logical aptitude knowledge of statistics, gen AI, LLM, Sagemaker, Python, computer vision, data visualization tools. Candidates lacking technical skills can research our other programs which can assist in landing a job.

If you get emails from our job placement team and are not interested please email them or ask them to take you off their distribution list and make you unavailable as they share the same database with the client servicing team who only connect with candidates who are matching client requirements. No phone calls please. Shortlisted candidates would be reached out. No third party or agency candidates or c2c candidates.

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About SynergisticIT

Sourced by ZipRecruiter

SynergisticIT is a reputable company based in Fremont, California, United States, operating within the prestigious technology industry. The company primarily focuses on tech staffing and IT services, taking pride in mastering the art of procuring the top talents in the industry to meet the diverse needs of its clients. While a testament to its long-standing commitment to excellent service, SynergisticIT was established in 2010, confirming its vast wealth of experience in addressing various tech-related challenges over the years. Their mission revolves around a singular operative phrase: “Understanding follows knowledge”. In line with this, they continually strive to garner more knowledge and understanding about the needs of their clients, thereby providing more personalized and effective solutions.

Industry

It services

Company size

11 - 50 Employees

Headquarters location

Fremont, CA, US

Year founded

2010

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