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Junior Python Developer Jobs in Berkeley, MO (NOW HIRING)

Phase2 Technology

Agentic AI Developer

O Fallon, IL · On-site

$99K - $225K/yr

Experience with programming languages such as Python or Java * Experience with software design patterns * Knowledge of embedding models, vector databases, and semantic search * Knowledge of AI safety ...

Interco

Junior Software Developer

Saint Louis, MO · On-site

$60K - $65K/yr

Interco is seeking a talented Junior Software Developer with a strong background in JavaScript and React.js to contribute to an innovative Enterprise Resource Planning (ERP) project. In this role ...

Interco Trading

Junior Software Developer

Saint Louis, MO · On-site

$60K - $65K/yr

Interco is seeking a talented Junior Software Developer with a strong background in JavaScript and React.js to contribute to an innovative Enterprise Resource Planning (ERP) project. In this role ...

Interco

Junior Software Developer

Saint Louis, MO · On-site

$60K - $65K/yr

Interco is seeking a talented Junior Software Developer with a strong background in JavaScript and React.js to contribute to an innovative Enterprise Resource Planning (ERP) project. In this role ...

APC Integrated Services

Junior SQL Developer

O Fallon, MO · On-site

$62K - $81K/yr

Position: Jr. SQL Developer Location: O'Fallon, MO (On-Site) Reports to: Implementation Manager Position Status: Exempt About Us: Automotive Product Consultants (APC) provides an array of services in ...

CACI

Junior Systems Integrator

Saint Louis, MO

$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 ...

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All JobsPython Developer JobsJunior Python Developer JobsJunior Python Developer Jobs in Berkeley, MO

Junior Python Developer information

See Berkeley, MO salary details

$22.5K

$83.5K

$129.1K

How much do junior python developer jobs pay per year?

As of Sep 14, 2026, the average yearly pay for junior python developer in Berkeley, MO is $83,513.00, according to ZipRecruiter salary data. Most workers in this role earn between $62,900.00 and $81,700.00 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 job categories do people searching Junior Python Developer jobs in Berkeley, MO look for?

The top searched job categories for Junior Python Developer jobs in Berkeley, MO are:

What cities near Berkeley, MO are hiring for Junior Python Developer jobs?

Cities near Berkeley, MO with the most Junior Python Developer job openings:

Junior Python Developer jobs near you
Infographic showing various Junior Python Developer job openings in Berkeley, MO as of August 2026, with employment types broken down into 1% Internship, 87% Full Time, 8% Part Time, and 4% Contract. Highlights an 76% Physical, 6% Hybrid, and 18% Remote job distribution, with an average salary of $83,513 per year, or $40.2 per hour.

Agentic AI Developer

O Fallon, IL • On-site

Phase2 Technology
Software Development • 51 - 200 employees
Learn more about Phase2 Technologyexternal

$99K - $225K/yr

Other

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

Job description

Job Number: R0241538

Agentic AI Developer Opportunity

As an experienced engineer, you know that machine learning is critical to understanding and processing massive datasets. Your ability to conduct statistical analyses on business processes using ML techniques makes you an integral part of delivering a customer-focused solution. We need your technical knowledge and desire to problem‑solve to support critical advancements in the Department of War. As a machine learning engineer on our Defense Technology team, you'll train, test, deploy, and maintain models that learn from data to create real‑world, mission‑critical impacts.

In this role, you'll own and define the direction of mission‑critical solutions by applying best‑fit ML algorithms and technologies and through the development, deployment, and management of AI agents. You'll be part of a talented team of machine learning engineers across the company and collaborate with data engineers and product owners to deliver world‑class solutions to develop cutting‑edge AI agents capable of solving our military's most challenging missions. Your skills and extensive technical expertise will guide clients as they navigate the landscape of ML algorithms, tools, and frameworks.

Work with us to solve real‑world challenges and define ML strategy for the Department of War.

Required Qualifications
  • 3+ years of experience within Machine Learning engineering, data science, data engineering, or software development
  • Experience developing applications using Large Language Models (LLMs)
  • Experience with programming languages such as Python or Java
  • Experience with software design patterns
  • Knowledge of embedding models, vector databases, and semantic search
  • Knowledge of AI safety, guardrails, and responsible AI practices
  • Knowledge of agent planning, reasoning, and execution loops
  • Ability to obtain a Secret clearance
  • Bachelor's degree
Preferred Qualifications
  • Experience working with Department of War data or on systems with advanced cyber security requirements
  • Experience with Retrieval‑Augmented Generation (RAG) architectures
  • Experience with LangGraph
  • Experience with model evaluation and AI quality metrics
  • Secret clearance
  • Master's degree in AI or a related field
Security Clearance

Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information.

Compensation

Salary range: $99,000.00 to $225,000.00 (annualized USD).

This posting will close within 90 days from the Posting Date.

Equal Opportunity

All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, local, or international law.

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