Fannie Mae, established in 1938, is a cornerstone of the United States housing finance system. The company purchases mortgages from lenders, bundles them into mortgage-backed securities, and sells them to investors, sustaining a continuous flow of capital into the housing market. Its work directly supports access to affordable housing: in 2025 alone, Fannie Mae provided $409 billion in funding, helping approximately 1.5 million households.
The company's product portfolio includes the 30-year fixed-rate mortgage, a loan structure it helped popularise to give families predictable monthly payments. Its Multifamily business finances quality, affordable rental housing through the Delegated Underwriting and Servicing (DUS) model and Low-Income Housing Tax Credit investments.
Fannie Mae's technology teams build and maintain the platforms and data systems that underpin mortgage securitisation, risk assessment, and capital markets operations at national scale. Engineering and data-science roles at the firm involve working with large-scale financial data pipelines, machine-learning models for credit and market risk, and digital tools used by lenders and servicers across the country.
