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Python Application Developer Jobs in Saint Louis, MO

ArchKey Solutions

Senior Python Developer

Fenton, MO · On-site

$116K - $156K/yr

... application performance and troubleshoots complex production issues. • Ensures adherence to ... Developer, Python certifications) preferred. Company : ArchKey Solutions is an electrical and ...

Archkey Solutions LLC

Senior Python Developer

Fenton, MO · On-site

$116K - $156K/yr

Description SR. PYTHON DEVELOPER This position is based out of our S t Louis, MO office About ... Optimizes application performance and troubleshoots complex production issues. * Ensures adherence ...

ArchKey Solutions LLC

Senior Python Developer

Fenton, MO

$116K - $156K/yr

Description SR. PYTHON DEVELOPER This position is based out of our St Louis, MO office About ... Optimizes application performance and troubleshoots complex production issues. * Ensures adherence ...

Stifel

AI-Application Security Engineer

Saint Louis, MO · On-site

$57 - $76.25/hr

What You'll Be Doing The AI-Application Security Engineer is responsible for implementing and ... developer enablement through technologies such as Python, AWS services, and CI/CD pipelines.

Stifel

AI-Application Security Engineer

Saint Louis, MO · On-site

$57 - $76.25/hr

What You'll Be Doing The AI-Application Security Engineer is responsible for implementing and ... developer enablement through technologies such as Python, AWS services, and CI/CD pipelines.

Stifel

AI-Application Security Engineer

Saint Louis, MO · On-site

$57 - $76.25/hr

The AI-Application Security Engineer is responsible for implementing and scaling technical security ... developer enablement through technologies such as Python, AWS services, and CI/CD pipelines.

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Python Application Developer information

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How much do python application developer jobs pay per hour?

As of Aug 11, 2026, the average hourly pay for python application developer in Saint Louis, MO is $51.18, according to ZipRecruiter salary data. Most workers in this role earn between $41.15 and $58.89 per hour, depending on experience, location, and employer.

What is the difference between Python Application Developer vs Python Software Engineer?

AspectPython Application DeveloperPython Software Engineer
Required CredentialsBachelor's in CS or related field, Python certificationsBachelor's or higher in CS, Python certifications often preferred
Work EnvironmentDevelops specific applications, often client-focusedDesigns and develops software solutions, broader scope
Employer & Industry UsageTech companies, startups, enterprise softwareTech firms, software companies, consulting
Common Search & ComparisonFocuses on application development tasksEncompasses broader software engineering roles

Python Application Developers primarily focus on creating specific applications using Python, often working closely with clients or project teams. Python Software Engineers typically have a broader role, including designing, developing, and maintaining complex software systems. While both roles require similar credentials and work environments, the Application Developer role is more targeted towards application creation, whereas the Software Engineer may handle a wider range of software development tasks.

What are some common challenges Python application developers face when working on large-scale projects?

Python Application Developers often encounter challenges such as managing complex codebases, ensuring consistent code quality, and optimizing application performance as projects grow in size. Collaborating with cross-functional teams and integrating various third-party libraries can also introduce compatibility issues or technical debt. To address these challenges, developers typically follow best practices like using version control, implementing thorough testing strategies, and participating in regular code reviews to maintain project stability and scalability.

What jobs can a Python application developer get?

A Python application developer can pursue roles such as software engineer, backend developer, data analyst, data scientist, automation engineer, or machine learning engineer. These positions often require knowledge of frameworks like Django or Flask, and familiarity with databases, version control, and cloud platforms is beneficial.

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

To thrive as a Python Application Developer, you need proficiency in Python programming, a solid understanding of software development principles, and experience with frameworks like Django or Flask, typically supported by a degree in computer science or related field. Familiarity with version control systems such as Git, databases like PostgreSQL or MongoDB, and cloud platforms is often required, along with optional certifications such as PCEP or PCAP. Strong problem-solving abilities, effective communication, and teamwork skills help you collaborate efficiently and adapt to evolving project requirements. These skills ensure you can build robust, maintainable applications and contribute effectively to development teams.

Are Python application developers still in demand?

Python application developers are currently in high demand due to Python's versatility in web development, data analysis, machine learning, and automation. Employers seek professionals skilled in frameworks like Django and Flask, as well as proficiency with related tools and libraries, making it a valuable skill set in the tech industry.

What is a Python application developer?

Python Application Developers are software professionals who design, build, test, and maintain applications using the Python programming language. They work on a variety of projects, ranging from web and desktop applications to data analysis tools and automation scripts. These developers are skilled in Python frameworks and libraries and often collaborate with other developers, designers, and stakeholders to deliver functional and efficient software solutions.

How much do Python application developers get paid?

Python application developers typically earn a median annual salary ranging from $70,000 to $120,000, depending on experience, location, and industry. Developers with expertise in frameworks like Django or Flask and proficiency in related tools may command higher salaries, especially in tech hubs or for senior roles.
What are popular job titles related to Python Application Developer jobs in Saint Louis, MO? For Python Application Developer jobs in Saint Louis, MO, the most frequently searched job titles are:
What job categories do people searching Python Application Developer jobs in Saint Louis, MO look for? The top searched job categories for Python Application Developer jobs in Saint Louis, MO are:
What cities near Saint Louis, MO are hiring for Python Application Developer jobs? Cities near Saint Louis, MO with the most Python Application Developer job openings:
Python Application Developer jobs near you
Infographic showing various Python Application Developer job openings in Saint Louis, MO as of August 2026, with employment types broken down into 61% Full Time, 35% Part Time, and 4% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $106,449 per year, or $51.2 per hour.

Application Developer II

McCarthy Building Companies, Inc.

Saint Louis, MO • On-site

Full-time

Re-posted yesterday

McCarthy Building Companies rating

7.8

Company rating: 7.8 out of 10

Based on 26 frontline employees who took The Breakroom Quiz

Job description

POSITION SUMMARY
McCarthy is seeking a full-time Application Developer located in St. Lous, MO who as part of the Enterprise Solutions and Analytics team, will play a crucial role in building our application and integration portfolio, supporting our existing systems and driving innovation following modern DevSecOps practices.
RESPONSIBILITIES
Solution Design and Development
  • Design and develop integration solutions by applying best practices and standard patterns in data model design, data transfer and event-based processing. Leverage integration capabilities such as Rest APIs, message queues and remote process execution in developing solutions. Implement solutions that process both structured and unstructured data (images, videos, model files etc.).
  • Design and develop custom applications on AI platform Palantir, integrating them into McCarthy's ecosystem of applications.
  • Develop solutions for maximum reusability, using components available in enterprise applications and platforms. Promote modular approach in solution design and development. Maintain a robust integration application and integration environment to promote long-term flexibility and growth.
  • Support the procurement of new applications and platforms by evaluating technical capabilities and providing insight.
Support and Administration
  • Provide technical support and guidance for efficient and effective resolution of issues. Respond to queries from application teams in a timely manner to reduce disruption to end users.
Security
  • Ensure integration and application solutions follow McCarthy's security practices and guidelines.
  • Enforce input validation and output encoding, avoid hardcoded secrets and credentials, apply least privilege logic in API and service interactions, use strong modern cryptography, sanitize logs, and perform threat modeling early and regularly.
  • Adhere to and promote a shift-left security mindset for pipeline, secrets management and supply chain functions.
Project Execution, Task Management
  • Follow best practices and support organizational effort in managing projects and tasks effectively. Demonstrate an agile mindset in planning and execution of tasks.
Continuous Learning and Improvement
  • Constantly seek to improve current solutions. Identify opportunities to improve performance, automate workflows and improve end-user experience.
  • Keep up with the latest on tools and platforms by attending vendor events and leveraging learning opportunities.
Internal Relationship Management
  • Develop strong partnerships with internal IT staff to ensure solutions address McCarthy's needs effectively and requests are addressed in a timely and effective manner. Work closely with business system analysts and product owners in understanding requirements and building solutions that implement user stories effectively.
QUALIFICATIONS
  • Minimum 3 years of experience with an enterprise iPaas (integration platform as a service) such as Boomi, Mulesoft or Snaplogic. Boomi experience would be preferable.
  • Strong knowledge of database capabilities and API-driven integration frameworks. Strong knowledge of SQL. Solid understanding of data formats including JSON and XML.
  • Experience developing solutions on an AI platform such as Palantir is a plus.
  • 3 - 5 years of application development experience on a modern stack (e.g., .NET 6+/C#, Node.js/TypeScript, Python, Ruby - Ruby on Rails/Sinatra/ActiveRecord) building RESTful services, event-driven components, and CI/CD-backed deployments; familiarity with containers and cloud services is a plus.
  • Working knowledge of DevSecOps practices and tools (DAST/SAST/SCA/secrets scanning) and severity-based remediation workflows in CI/CD. Examples of tools include Checkmarx, OWASP, GitHub, Snyk, Terrasan and Terraform
  • Practical experience with secure file transfer (SFTP), key management, and PGP encryption in automated pipelines.
  • Knowledge of cloud platforms such as AWS, Azure and Microsoft Office 365.
  • Experience working on projects using an Agile approach and the Scrum framework.
  • Constant learner with a passion for continuous growth and improvement.
  • Strong interpersonal and communication skills. Strong team player with a collaborative mindset.

McCarthy is proud to be an equal opportunity employer, including disability and protected veteran status.
NOTICE TO EXTERNAL SEARCH FIRMS: McCarthy's Talent Acquisition Team is the only authorized representative permitted to engage with external search firms, staffing agencies, or other third-party recruiting partners. McCarthy maintains an Approved Agency List for recruiting partners, which is reviewed and updated annually.
McCarthy will only consider submissions from agencies with a signed fee agreement in place for the current year. McCarthy does not accept unsolicited resumes, candidate submissions, or referrals from agencies that do not meet these requirements.
If a candidate is submitted without an active agreement, McCarthy will have no obligation to pay any fees and reserves the right to contact, engage, interview, or hire such candidate(s) without any financial or other responsibility to the submitting agency. Unsolicited resumes, including those sent directly to hiring managers or other employees, will be considered the property of McCarthy.

What McCarthy Building Companies employees say

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About McCarthy Building

Sourced by ZipRecruiter

McCarthy Building, headquartered in Saint Louis, MO, US, is a leading construction company primarily offering general contracting, design-build and construction management services throughout the United States. Its prominent industry presence can be explored in detail on its official website, mccarthy.com. Founded in 1864, the company has built a robust legacy marked by significant contributions to the U.S. construction industry. McCarthy Building engages a broad range of sectors, including healthcare, education, commercial, renewable energy, and advanced technology.

Industry

Construction

Company size

1,001 - 5,000 Employees

Headquarters location

Saint Louis, MO, US

Year founded

1864

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