Job Description

Position:   Senior Full Stack Python Developer

Location: Hybrid – 2 days onsite Reston, VA or Washington, DC (candidates preference)

They need a highly experienced software engineer and full stack developer with strong skills in Python and Flask that brings deep expertise in software design and architecture. This person will guide the Clearinghouse development team by leading design reviews and writing hands-on reference code that others can follow.  

Here's how it works in simple terms:

Buying Mortgages : Fannie Mae buys home loans from banks and other lenders. This gives those lenders more money to make new loans to other people.

Guaranteeing Loans : Fannie Mae guarantees these loans, which means if a borrower can't pay back the loan, Fannie Mae will cover it. This reduces the risk for lenders.

Creating Mortgage-Backed Securities : Fannie Mae bundles these loans into mortgage-backed securities (MBS) and sells them to investors. This process helps to keep the mortgage market stable and ensures there's always money available for new home loans.

By doing all this, Fannie Mae helps more people get mortgages, which supports the housing market and makes it easier for people to buy homes.

Qualifications

Minimum Required Experiences:

Experienced software engineer, a full stack developer with Python and Flask expertise and strong software design skills. This would be the more experienced and skilled developer with software engineering experience that can guide the rest of the Clearinghouse developers with design reviews and also hands-on coding to develop reference code for others to adopt.  

• Bachelor's degree in Computer Science, Engineering, or related field.
  
• Full Stack Developer with expertise in UI frameworks Angular, React, JavaScript and backend in Python.
  
• Excellent problem-solving skills and strong verbal & written communication skills.
  
• Ability to work independently as well as part of a team.
  
• Strong proficiency in Python, HTML, CSS, JavaScript, and TypeScript.
  

• Experience with RESTful Web Services and Web APIs using back-end technologies using flask, python, and redshift.
  
• Ability to leverage Fannie Mae DevOps tool stack to build, inspect, deploy, test and promote new or updated features
  
• Proficiency with Continuous Integration/Continuous Delivery (Jenkins, Go) and experience with build tools such as Gradle, Maven, Nexus, etc.
  
• Knowledge of containerization technologies like Docker and orchestration tools like Kubernetes is a plus.
  
• Product Testing including testing and evaluating software, usability testing, UAT, and using relevant product testing technology/frameworks such as Selenium.
  
• Skilled in use of AWS technologies for building, deploying, and operating applications.
  
• Skilled in establishing and maintaining consistency of a product's performance, functional, and physical attributes with its requirements, design, and operational information
  
• Experience identifying measures, or indicators of system performance, and the actions needed to improve or correct performance to achieve desired outcomes
  

Requirements

Interview Process/# of Rounds:

Interview Process/# of Rounds:

• Direct manager contact
  
• 2 rounds
  

Benefits

Key Qualities they are looking For

• Deep experience in software engineering (not just coding—look for architecture and design thinking).
  
• Fluency in Python and Flask , with examples of real-world projects.
  
• Full stack capability : backend focus, but comfortable across the stack.
  
• Strong communicator who can lead design reviews and explain technical decisions clearly.
  
• Mentorship mindset : has led or guided other developers in a team setting.
  
• Hands-on : not just a strategist—this person should be writing reference code others can build on.
  

• Ask for examples of  design decisions they’ve made and how they influenced a team.
  
• Look for  code samples or GitHub contributions that show clean, scalable architecture.
  
• Use a  technical scenario to see how they’d guide a junior developer through a problem.
  
• Validate their ability to  balance leading with hands-on work .
  

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