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# Senior Python Developer - McLean, VA (Onsite) - Ex-Capital One

- **Company:** ARROWMINDS INC
- **Location:** Chantilly, VA, United States
- **Experience:** Expert
- **Contract:** Contract
- **Skills:** Clean Code Principles, Application Performance Management, Unit Testing, Code Review, Computer Programming, Databases, Continuous Integration, Relational Databases, Software Debugging, Software Design Patterns, Distributed Systems, Python (Programming Language), Object-Oriented Software Development, Scrum Methodology, Cloud Services, Application Data, SQL Databases, Backend, Pytest, Integration Tests, Kubernetes, Information Technology, Restful APIs, Docker, Microservices
- **Published:** October 16, 2026
- **Apply:** https://www.dice.com/job-detail/82f81642-ae13-4d61-a1ed-5cc6e25e6ea0

## About the Role

Prior Capital One experience is mandatory - (Are you eligible and comfortable with being rehired at Capital One? Also, are you aware of any red flags or issues from your previous employment that could affect your rehire eligibility?), * 11+ years of overall IT experience, with strong hands-on Python development experience.

 * Previous experience working with Capital One is mandatory.
 * Strong knowledge of Python programming, object-oriented programming, and common design patterns.
 * Experience developing RESTful APIs and backend applications.
 * Experience with SQL and relational databases., * Experience with AWS cloud services.
 * Familiarity with CI/CD pipelines, Docker, and Kubernetes.
 * Experience with automated testing frameworks such as PyTest.
 * Experience working in financial services or banking environments.
 * Knowledge of microservices architecture and distributed systems.

## Description

We are seeking an experienced Senior Python Developer with strong hands-on Python development skills and prior experience working with Capital One. The ideal candidate will have a solid background in developing, designing, testing, and maintaining scalable applications, along with experience working in enterprise environments., * Design, develop, test, and maintain scalable applications using Python.

 * Write clean, reusable, efficient, and maintainable code following development best practices.
 * Develop and integrate REST APIs and backend services.
 * Work with databases to write and optimize queries and support application data processing.
 * Troubleshoot application issues, perform debugging, and implement solutions.
 * Participate in code reviews, unit testing, integration testing, and deployment activities.
 * Collaborate with cross-functional teams, including developers, architects, QA engineers, and business stakeholders.
 * Follow Agile/Scrum methodologies and established software development standards.
 * Support application performance optimization, production issue resolution, and continuous improvement.