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Senior Python Developer Jobs in Swansea, IL (NOW HIRING)

Senior DevOps Integration Specialist

Hazelwood, MO ยท On-site

$122.60K - $157.50K/yr

Senior DevOps Integration Specialist Company: The Boeing Company The Boeing Company is currently ... Puppet, Ansible, Chef etc.) * 1+ years of experience using PowerShell, Bash, and Python * 1+ years ...

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Senior DevOps Integration Specialist

Hazelwood, MO

$122.60K - $157.50K/yr

Senior DevOps Integration Specialist Company: The Boeing Company The Boeing Company is currently ... Puppet, Ansible, Chef etc.) * 1+ years of experience using PowerShell, Bash, and Python * 1+ years ...

Senior Software Engineer

Saint Louis, MO ยท On-site

$119.10K - $157K/yr

Peerless is searching for an experienced Senior Software Engineer to design, develop, and maintain ... Experience with server-side programming languages such as Go, Node.js, or Python * Experience ...

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Showing results 1-20

Senior Python Developer information

See Swansea, IL salary details

$53.4K

$137.9K

$189.4K

How much do senior python developer jobs pay per year?

As of May 31, 2026, the average yearly pay for senior python developer in Swansea, IL is $137,901.00, according to ZipRecruiter salary data. Most workers in this role earn between $118,000.00 and $158,800.00 per year, depending on experience, location, and employer.

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 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 cities near Swansea, IL are hiring for Senior Python Developer jobs? Cities near Swansea, IL with the most Senior Python Developer job openings:
Senior Associate Full Stack Engineer

Senior Associate Full Stack Engineer

Mastech Digital

Saint Louis, MO โ€ข Remote

$55 - $60/hr

Full-time, Contractor

Medical, Dental, Vision, Life, Retirement

Posted 21 days ago


Job description

Mastech Digital provides digital and mainstream technology staff as well as Digital Transformation Services for all American Corporations. We are currently seeking a Senior Associate Full Stack Engineer for our client in the Professional Services domain. We value our professionals, providing comprehensive benefits and the opportunity for growth. This is a Contract position, and the client is looking for someone to start immediately.

Duration: 6 Months Contract

Location: Remote (St. Louis, MO)

Salary: $55.00-$60.00/Hourly

Role: Senior Associate Full Stack Engineer

Primary Skills: Python

Role Description: The Senior Associate Full Stack Engineer must have 3+ years of experience. For this role, you must be a highly skilled Full Stack Engineer with deep expertise in building secure, scalable, and cloud-native applications. This role demands hands-on experience with modern frameworks, cloud platforms, and DevSecOps practices.

Education:

- Bachelor's Degree or Equivalent Work Experience

Year of Experience:

- 3+ years

Principal Responsibilities:

- Design and implement scalable, secure, and cloud-native software applications using Python, Django REST Framework, FastAPI, React, and Next.js within microservices architecture.

- Develop and maintain REST APIs and integrate with OIDC/OAuth-based authentication systems, ensuring compliance with advanced security concepts for apps in Azure and Entra ID cloud-native app security.

- Lead the deployment and orchestration of containerized applications using Docker, Helm, and Kubernetes, with a focus on developer-centric Kubernetes practices.

- Develop and manage CI/CD pipelines using GitHub Actions, incorporating automated testing, security scanning, and deployment workflows.

- Package and distribute Python applications using modern Python packaging standards and tools.

- Stay current with emerging technologies, including GenAI and LLMs, and contribute to innovative initiatives.

- Act with integrity, professionalism, and personal responsibility to uphold the firmโ€™s respectful and courteous work environment.

Qualifications:

- Minimum of 3 years of full-stack development experience with demonstrated expertise in Python, React, including frameworks like Django REST Framework, and FastAPI.

- Bachelorโ€™s degree in Computer Science, Software Engineering, or a related field.

- Proven experience building and securing cloud-native applications on Azure or GCP, with deep understanding of OIDC, OAuth, and Entra ID security models.

- Proficiency in containerization and orchestration using Docker, Helm, and Kubernetes, especially in developer-focused environments.

- Strong command of CI/CD pipelines using GitHub Actions, and version control with Git.

- Hands-on experience with scripting and automation using Bash, and PowerShell,

- Solid understanding of microservices architecture, REST API design, and Python packaging best practices.

- Familiarity with advanced application security in cloud environments, including threat modeling and secure deployment patterns.

- Experience with GenAI and LLMs is a plus.

- Strong verbal/written communication, problem solving, analytical and independent judgment skills to support an environment driven by customer service and teamwork.

- Ability to positively influence, mentor and be a credible source of knowledge to less experienced team members

Education: Bachelorโ€™s degree in Computer Science, Software Engineering, or relevant field

Experience: Minimum 3+ years of experience

Relocation: This position will not cover relocation expenses

Travel: No

Local Preferred: Yes

Note: Must be able to work on a W2 basis (No C2C)

Recruiter Name: Kajal Vatsa

Recruiter Phone: 484-331-9666

Benefits:

We have various coverages and additional benefits to choose from:

- Medical, Dental (Including Ortho) & Vision Insurance (Option to Enroll).

- Paid Leaves (Wherever applicable).

- Life & Disability Coverage (Upon eligibility).

- 401K Option, Education Assistance Program and more.

Mastech Digital is an Equal Opportunity Employer - All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.

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