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Sei

About Sei

Mortgage operations, built the way highly regulated systems need to be built.

We built PayPal’s and Wise’s payment rails & data infrastructure, shipped large scale recommendation systems at Amazon and managed credit products inside Deutsche Bank and the World Bank. We started Sei because the mortgage borrower experience is outdated because of legacy systems inside lenders.

Our Mission

Every desk on a mortgage floor, run by software that cites itself.

Not a copilot waiting to be asked. The desks hold the goal and does not stop until it is accomplished: borrower calls, document review, income, conditions, closing, QC, servicing and default. Each one leaves behind the document page or the call timestamp its decision rests on, inside the LOS you already run.

Founders

The people who built the rails

Pranay's portrait

Pranay

Co-founder & CEO

  • World Bank
  • PayPal
  • Deutsche Bank
  • CloudKitchens

Pranay built credit and payments products at Deutsche Bank, PayPal and the World Bank.

Ramkumar's portrait

Ramkumar

Co-founder & CTO

  • PayPal
  • Wise
  • Amazon

Ramkumar built payment, risk and high-scale data infrastructure at PayPal, Wise and Amazon — platforms that move billions of dollars with no downtime.

How We Work

Values that make us

Care, agency and taste - that's all that matters in the age of AI

You need to care enough about customer problems to resolve issues at 2AM. Nobody here tells you what and how to do, it is all your individual agency. Great products are built by people with great taste.

Nobody here is too senior to do the job

The CTO writes code every day, the CEO sells every day, and customer support is everyone in the team. We take the time to pick a direction, then execute hard on it.

A deep ten, then a real zero

Josh Waitzkin’s line is that most people sit at a simmering six all the time. We would rather swing — intense work, then genuine rest, then again. A permanent six is not commitment.

If it is not written down, it did not happen

Code agudelines, customer calls, partnership terms, design decisions and tasks all get written down. For humans and agents to learn from.

The idea wins, not the person behind it

Everyone gives everyone else constructive, critical feedback — founders included — on a cycle of weeks rather than quarters. Every idea is given respect and good ideas win.

There is a person at the other end of the agent

We sell AI to businesses, but the product ends up in front of a borrower having a difficult month. Kindness is expected here, and empathy is what we hire for.

Careers

Everyone here is a partner — not a resource.

We’re hiring across product, engineering, and customer success. If you want to ship in an inclusive, ambitious team building for mortgage lenders and servicers, we’d love to talk.

View Open Roles

You Ain't Seen Nothin' Yet

Book a Demo

Pack up some of your complex historical files — any loan type, any investor. We run them through intake, income and condition clearing, and in 30 minutes you see every condition we created and cleared efficiently for your own team, and why.

  • Any loan type, any agency guideline or custom investor overlays.
  • Every finding cited to the guideline or document it came from

Please provide your full name so we know how to address you.

Tell us which company you represent so we can personalise our response.

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Which desks would you like to discuss?*

Choose the desks you’d like us to cover. Pick “Not sure yet” if you’d rather we worked it out on the call.

Roughly, so we bring the right person to the call.

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