Senior Python Developer

JPS Tech Solutions; Illinois; On-site; USD 150,000 - 190,000; Full time

Job summary

JPS Tech Solutions is seeking a highly experienced Python Developer to design and build scalable RESTful APIs using Flask or FastAPI. The role requires 12+ years of IT experience with 5+ years of hands-on Python development and a strong foundation in object-oriented programming.

The ideal candidate will develop production-grade backend services, collaborate with cross-functional teams, and contribute to code quality through testing and reviews. AWS familiarity and DevOps practices are a plus.

Qualifications

• 12+ years of IT experience
• 5+ years hands-on Python development
• Proven experience building REST APIs with Flask or FastAPI
• Strong understanding of object-oriented programming (OOP)
• Experience developing production-grade backend services
• Solid debugging and problem-solving skills
• Strong communication and collaboration abilities

Responsibilities

• Design, develop, and maintain RESTful APIs using Python and Flask or FastAPI
• Apply solid object-oriented design principles to build clean, reusable code
• Develop backend services that are scalable, secure, and high-performing
• Collaborate with product owners, architects, and frontend teams to deliver end-to-end solutions
• Write efficient, well-tested, production-ready Python code
• Implement unit and integration tests to ensure code quality and reliability
• Debug, troubleshoot, and resolve complex technical issues
• Participate in code reviews and contribute to best practices
• Maintain technical documentation and support ongoing enhancements

Skills

Python

REST APIs

OOP

Backend design

Tools

Flask

FastAPI

Docker

Kubernetes

Job description

Job Description

We are seeking a highly experienced Python Developer with 12+ years of overall IT experience, including 5+ years of deep, hands-on Python development, to design and build scalable, high-performance RESTful APIs. This role focuses on backend API development using Flask or FastAPI and strong application design principles.

The ideal candidate is a solid problem-solver with a strong foundation in object-oriented programming, experience building production-grade APIs, and the ability to work collaboratively in a fast-paced environment. While cloud exposure is limited in this project, familiarity with AWS and modern DevOps practices is a plus.

Key Responsibilities

• Design, develop, and maintain RESTful APIs using Python and Flask or FastAPI
• Apply strong object-oriented design principles to build clean, reusable, and maintainable code
• Develop backend services that are scalable, secure, and high-performing
• Collaborate with product owners, architects, and frontend teams to deliver end-to-end solutions
• Write efficient, well-tested, and production-ready Python code
• Implement unit and integration tests to ensure code quality and reliability
• Debug, troubleshoot, and resolve complex technical issues
• Participate in code reviews and contribute to best practices
• Maintain technical documentation and support ongoing enhancements

Required Qualifications & Experience

Must Have

• 12+ years of overall IT experience
• 5+ years of strong, hands-on experience in Python development
• Proven experience building REST APIs using Flask or FastAPI
• Strong understanding of object-oriented programming (OOP) concepts
• Experience developing production-grade backend services
• Solid debugging and problem-solving skills
• Strong communication and collaboration abilities

Preferred / Nice to Have

• Experience with Python libraries such as Pandas and NumPy
• Exposure to FinTech or financial domain projects
• Familiarity with AWS cloud services
• Experience with containers (Docker, Kubernetes)
• Experience with testing frameworks (Pytest, Unittest, Behave)