Senior Python Developer

Benefits :

Onsite

Competitive salary

Opportunity for advancement

Title : Senior Python Developer

Location : McLean, VA – 100% Onsite (Monday to Friday)

Duration : Long Term

Interview Mode : In-Person

We are seeking a Senior Software Developer with strong Python expertise to support mission-critical applications built on modern software development frameworks.

The developer will contribute to new feature development, defect resolution, technical debt reduction, enhancements, and migration efforts across both customer-facing and internal applications. The role spans full lifecycle development including server operations, backend and frontend work, testing, validation, and ongoing maintenance.

Key Requirements

• 10+ years of hands-on professional experience in Python development

Strong experience building scalable applications using :

• Pandas
• Pytest
• NumPy

Flask

Solid understanding of :

• Design patterns
• OOP principles
• Data structures

Algorithm optimization

Experience with build and integration tools :

• Python workflow tools
• Jenkins
• Git

Docker

Familiarity with databases such as :

• SQL Server
• Sybase
• Redis

MongoDB

• Prior experience in Financial / Mortgage / Fintech domain is required

Strong financial or accounting acumen to understand business requirements and validate feature implementations

Responsibilities

• Design, develop, test, and support financial engineering applications and services
• Resolve defects and address technical debt while maintaining best development practices
• Write clean, maintainable, high-quality code with strong unit and integration test coverage
• Collaborate across infrastructure layers and cross-functional teams
• Support infrastructure upgrades and new technology adoption

Contribute to collaborative problem-solving and high-quality system design