Senior Python Developer

Job Category: Python

Job Type: Onsite

Job Location: McLean, Virginia

Compensation: Depends on Experience

W2: W2-Contract Only;
Kindly note that applications on a C2C basis will not be considered for this role.

Eligible Visa: GC, GC-EAD, H4 EAD, L2S, U.S. Citizen (USC)

This position is open only to candidates authorized to work in the United States under the following visa categories:
H4-EAD, Green Card Holder, GC-EAD, U.S. Citizen, L2s, L2-EAD. No other visa types are eligible for this role.

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 Dev Ops practices is a plus.

• 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

• 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

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