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

Boeing

Senior DevOps Developer

Berkeley, MO · On-site

$122K - $156K/yr

Senior DevOps Developer Company: The Boeing Company The Boeing Company is currently seeking a ... Bachelor's degree or higher * 3+ years of strong scripting and automation skills (Bash, Python ...

Boeing

Senior DevOps Developer

Saint Charles, MO · On-site

$122K - $157K/yr

Senior DevOps Developer Company: The Boeing Company The Boeing Company is currently seeking a ... Bachelor's degree or higher * 3+ years of strong scripting and automation skills (Bash, Python ...

Boeing

Senior DevOps Developer

Hazelwood, MO · On-site

$122K - $157K/yr

Senior DevOps Developer Company: The Boeing Company The Boeing Company is currently seeking a ... Bachelor's degree or higher * 3+ years of strong scripting and automation skills (Bash, Python ...

Boeing

Senior DevOps Developer

Saint Charles, MO · On-site

$122K - $157K/yr

Senior DevOps Developer Company: The Boeing Company The Boeing Company is currently seeking a ... Bachelor's degree or higher * 3+ years of strong scripting and automation skills (Bash, Python ...

Boeing

Senior DevOps Developer

Berkeley, MO · On-site

$122K - $156K/yr

Senior DevOps Developer Company: The Boeing Company The Boeing Company is currently seeking a ... Bachelor's degree or higher * 3+ years of strong scripting and automation skills (Bash, Python ...

Boeing

Senior DevOps Developer

Hazelwood, MO · On-site

$122K - $157K/yr

Senior DevOps Developer Company: The Boeing Company The Boeing Company is currently seeking a ... Bachelor's degree or higher * 3+ years of strong scripting and automation skills (Bash, Python ...

GDIT

DevOps Engineer, Sr

Saint Louis, MO · On-site

$51.25 - $70.25/hr

As a DevOps Engineer, Sr. 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 ...

New

Navtech, Inc.

Sr AWS Developer

Saint Louis, MO · On-site

Job Title: Sr AWS Developer Location: St Louis, MO - Remote Start Duration: 6+ Months Contract then ... Java/Python/Scala * Strong notions of security best practices (e.g. using IAM Roles, KMS, etc.

MasterCard

Senior Software Engineer

O Fallon, MO

$114K - $151K/yr

Strict Must-Haves (Non-Negotiable) Python - Proven experience building and operationalizing ... native and DevOps technologies (e.g., Docker, CI/CD pipelines, PCF or other cloud platforms ...

teKnoluxion

Senior DevOps Engineer

Saint Louis, MO · On-site

$126K - $162K/yr

Overview Senior DevOps Engineer Springfield, VA or St. Louis, MO Active TS (SCI eligibility ... Understanding of Python, Bash, and Shell scripting * Knowledge of network technologies, common ...

Mastercard, Inc.

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Strict Must-Haves (Non-Negotiable) • Python - Proven experience building and operationalizing ... and DevOps technologies (e.g., Docker, CI/CD pipelines, PCF or other cloud platforms) • ...

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Senior Python Developer information

See O Fallon, MO salary details

$51.5K

$132.8K

$182.4K

How much do senior python developer jobs pay per year?

As of Jul 12, 2026, the average yearly pay for senior python developer in O'Fallon, MO is $132,815.00, according to ZipRecruiter salary data. Most workers in this role earn between $113,700.00 and $153,000.00 per year, depending on experience, location, and employer.

What are the main responsibilities of a Senior Python Developer?

A Senior Python Developer is responsible for designing, developing, and maintaining complex software applications using the Python programming language. They lead the technical aspects of projects, mentor junior developers, and ensure code quality through code reviews and best practices. Additionally, they collaborate with cross-functional teams to gather requirements, solve technical challenges, and deploy scalable and efficient solutions. Senior Python Developers are also expected to stay updated with the latest trends and advancements in Python and related technologies.

What is the difference between Senior Python Developer vs Python Developer?

AspectSenior Python DeveloperPython Developer
Required ExperienceTypically 5+ years, with leadership and complex project experienceUsually 1-3 years, focusing on core Python skills
ResponsibilitiesDesigning architecture, mentoring, handling complex systemsWriting code, debugging, implementing features
CertificationsOptional but beneficial (e.g., Python certifications, cloud certs)Often not required
Work EnvironmentCollaborative teams, project planning, code reviewsDevelopment-focused, task-oriented

The main difference between a Senior Python Developer and a Python Developer lies in experience, responsibilities, and leadership. Senior developers handle complex projects, mentor others, and often participate in architecture decisions, while Python Developers focus on coding and feature implementation. Both roles are essential in tech companies, but the senior role requires more experience and broader skills.

What are the key skills and qualifications needed to thrive as a Senior Python Developer, and why are they important?

To thrive as a Senior Python Developer, you need advanced proficiency in Python programming, experience with software architecture, and a solid understanding of algorithms and data structures, usually backed by a degree in computer science or related fields. Familiarity with frameworks like Django or Flask, version control systems such as Git, and containerization tools like Docker are typically required, alongside knowledge of modern CI/CD pipelines. Strong problem-solving abilities, effective communication, and leadership skills help you collaborate with teams and mentor junior developers. Mastery of these skills ensures the delivery of scalable, maintainable software solutions and the ability to drive technical excellence within development teams.

What are some common challenges faced by Senior Python Developers when leading a development team?

Senior Python Developers often encounter challenges such as balancing hands-on coding with mentoring junior team members and ensuring code quality across the team. They are also responsible for making architectural decisions, which requires staying updated on best practices and emerging Python frameworks. Additionally, coordinating collaboration between cross-functional teams (like DevOps, QA, and front-end developers) can be complex, especially in agile environments where requirements may shift rapidly. Overcoming these challenges helps foster a productive and innovative team culture.
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 Senior Python Developer jobs in O'Fallon, MO? For Senior Python Developer jobs in O'Fallon, MO, the most frequently searched job titles are:
What cities near O'Fallon, MO are hiring for Senior Python Developer jobs? Cities near O'Fallon, MO with the most Senior Python Developer job openings:
Senior Python Developer jobs near you

Backend Developer Senior 564

Freedom Technology Solutions Group

Saint Louis, MO • Remote

$117K - $152K/yr

Other

Re-posted 6 days ago

Job description

Freedom Technology Solutions Group is seeking a Software Engineer (Backend Developer) to support our client's intelligence analysis products and capabilities. This position involves providing software development capabilities to enhance existing and emerging client capabilities, including design and development, modernization of existing applications and services, and operations and sustainment. The role focuses on driving the client's adaptation of higher levels of automation and operational efficiency through agile development methodologies, rapid prototyping, and modern technology stacks. The Senior Backend Developer provides comprehensive knowledge across multiple backend and cloud technologies, leading major assignments and guiding project outcomes. Functions as a technical expert and may lead teams of developers.

Responsibilities: 
  • Lead the design, development, and deployment of enterprise-scale backend services. 
  • Architect and optimize secure DevSecOps pipelines and automated testing frameworks. 
  • Direct the migration, scaling, and modernization of applications in AWS environments. 
  • Drive geospatial solution integration across enterprise applications. 
  • Define technical standards, coding guidelines, and best practices. 
  • Supervise development teams and provide technical mentorship. 
  • Evaluate performance results and recommend project-wide improvements. 
  • Support proposal writing, technical white papers, and client briefings. 
Qualifications: 
  • 9-13 years of backend development experience. 
  • Expert proficiency in Java, JavaScript, and/or Python. 
  • Proven leadership in DevSecOps adoption and Agile/SAFe development frameworks. 
  • Advanced AWS expertise, including architecture and deployment of containerized applications. 
  • Deep experience with geospatial systems and enterprise integration. 
  • Strong ability to plan, manage, and deliver complex technology assignments. 
  • Using GitLab for code source repository and using GitLab CI/CD.
  • Developing customized code, scripts, modules, macro procedures, or libraries for specialized spatial analysis functions using languages such as Python, Java, JavaScript, PHP, C, C++, C#, Perl, or similar.
  • Experience working independently with clients or stakeholders to develop user stories for full-service consumer and business applications.
  • Experience with government and/or commercial imagery products, including SAR or related RADAR imaging technologies.
  • Developing geospatial information systems (GIS) and working with open-source and proprietary geospatial formats.
  • Using and developing common geospatial tools, data, and operating platforms such as:

    Tools: Boundless Spatial suite, Remote View, PostGRES/PostGIS, Oracle Spatial, ArcGIS Desktop, ArcGIS Server, Image Server, File Geodatabases

    Data Formats: KML, KMZ, NITF, TIFF, JPEG, GeoPDF, and similar geo-related formats and data structures

  • Abstracting new or legacy systems via standards-based APIs, including Open Geospatial Consortium standards
  • Developing terrain analysis visualization and algorithms
  • Developing automated detection algorithms
  • Experience with Argo Workflows

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