CSS developed, launched and operates the Common Securitization Platform, the largest and most advanced mortgage securitization service in the world which supports the Uniform Mortgage-Backed Security of Fannie Mae and Freddie Mac.

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Collaboration is the Culture

CSS creates transformative solutions for our clients by building indispensable trust-based relationships, anchored in performance that generate profound, sustainable value.

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One Team

CSS is recruiting premier talent — individuals who are committed to delivering extraordinary results for our clients. We offer a flexible and dynamic work environment with a focus on value creation and results.

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Our Work

Common Securitization Solutions is a joint venture owned by Fannie Mae and Freddie Mac. Under FHFA’s direction, the Common Securitization Platform (CSP) was undertaken as a joint initiative by Fannie Mae and Freddie Mac to develop one common, flexible technological and operational platform to support single-family securitization.

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Our Culture

Since our inception as a company, CSS has fostered a “Work Hard, Play Hard” culture which reflects the intensity of the work that we are accomplishing while also recognizing the need for our team to enjoy a solid work-life balance.

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Our People

With the Common Securitization Platform, CSS has proven that it can run what it built … but bigger things are ahead. Our company offers great career growth opportunities for those interested in being part of one of the most exciting technology projects in the U.S. housing finance sector, a project that will positively impact homeowners for decades to come.

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CSS Video Library

How the CSP Works