A computer engineer who spent a decade at Facebook came home one day and decided that America's $1 trillion credit card debt problem was solvable - with a 15-minute application and the equity already sitting in your walls.
Somewhere between your 1990s Sears card and your 2025 Chase Sapphire, American household debt quietly crossed a trillion dollars. Not over a recession. Not over a financial crisis. Steadily, almost monotonically, as Sadi Khan describes it, from zero to a number that most people can't write without googling how many zeros come after "trillion."
Khan noticed. Then he did something about it. He built Aven - a company that turns the equity sitting dormant in your home into a credit card you can apply for in 15 minutes, at roughly half the interest rate of anything else in your wallet. The concept sounds simple. The execution is not. And the reception from Vinod Khosla, Lawrence Summers, the former heads of Fannie Mae and Freddie Mac, and hundreds of thousands of American homeowners suggests Khan got the execution right.
"Since the 1950s, we have steadily, almost monotonically, gone up from zero to a trillion dollars of credit card debt."
Aven's thesis is direct: homeowners with equity are chronically overpaying for credit. The traditional home equity line of credit (HELOC) takes 4 to 6 weeks and a stack of paperwork. The average credit card charges 20-plus percent APR. Aven collapses both. Apply with your smartphone. Close in minutes. Spend anywhere Visa is accepted. Pay HELOC rates. The mechanics are new. The savings are immediate. The 4.9-star Trustpilot rating across 5,000 reviews suggests customers are not being tricked into thinking so.
Before Aven, Khan was a product director at Facebook for nearly a decade. His fingerprints are on Internet.org - the initiative to bring internet access to billions of people who had none - as well as Maps (computer vision-based), Search, and Ads. It is the kind of resume that makes you quietly formidable at everything you touch.
Before Facebook, he was at Microsoft, where he managed ownership and development of software components for products including Visual Studio and Xbox. He lists them all casually in his Twitter bio, which reads like an engineer's greatest hits: "Helped build Internet.org, Maps, Search, Ads, Visual Studio, and Xbox." Eight words. Twenty years of context.
He graduated from the University of Waterloo with a degree in Computer Engineering in 2008. Waterloo is quietly one of the best engineering schools in North America - alumni include the founders of Blackberry and a disproportionate share of Silicon Valley engineering leaders. Khan fit the mold precisely.
When he left Facebook after 11 years, he took a year off. Not to decompress. Not to travel. To think. To identify a problem worth spending decades on. He found it in the quiet inefficiency of how Americans borrow money against their own homes.
Aven launched its first product in California in 2022. By the time it raised its Series D in July 2024, it had crossed $1 billion in valuation and expanded across all 50 states. By September 2025, a $110 million Series E at a $2.2 billion post-money valuation signaled something more than a credit card company: Aven was becoming what Khan calls a "machine banking" platform.
The phrase is deliberate. Khan's vision is automation, patented robotics, and large-scale machine learning applied not to trading algorithms or consumer data - but to the mechanical work of underwriting, origination, and servicing that keeps consumer credit so expensive. Strip out the cost of the process. Pass the savings to the borrower. Repeat at scale.
"Our goal is to build a product with the lowest cost of capital for consumers after your primary mortgage."
The company has issued over $3 billion in aggregate credit lines and saved consumers more than $215 million in interest. Those are not projections. Those are the numbers from 250,000-plus customers who chose a 15-minute HELOC card over a 20-percent APR piece of plastic.
In August 2025, Aven achieved a first AAA securitization rating at an unprecedented speed - a signal that institutional capital markets take its underwriting quality seriously. In 2025, the company expanded into mortgage refinancing. In April 2026, it launched a Bitcoin-backed Visa Card with up to $1 million in credit lines and rates starting at 7.99% APR. Khan is not building a single product. He is building a platform under every financial line a homeowner might have.
Khan runs his life on a set of principles that make most lifestyle-optimization content look noisy by comparison. He wears the same outfit every day - a black long-sleeved shirt and a Patagonia vest - to eliminate decision fatigue. He does not drink. He goes to the gym regularly. He cooks at home. He runs Sunday 6 PM leadership meetings to lock in the weekly roadmap before the week begins.
He calls this love of predictability by its name: "If I were to know everything that will happen to me between today and my death, I'll be very happy. I have no need for surprises or excitement. I love boring: Boring is great."
This is not a pose. It is a system - one that he extends to how he runs Aven. He describes his preferred decision-making mode as "maximally rational," believing rational decisions scale better than emotional ones because they are predictable and easier for teams to execute. A boring CEO running a maximally rational company turns out to be a very good fit for a product that solves a 50-year-old structural problem with math.
When Khan hires, he looks for three things in technical talent: intelligence at the top percentile, work ethic that can sustain over years, and mission alignment - personal ambition that matches the company's. The company's team of 160 includes alumni from Goldman Sachs, Capital One, Square, Meta, Microsoft, Google, Uber, and Tesla. The boring CEO runs a very non-boring team.
Vinod Khosla personally led Aven's Series E round. That is worth pausing on. Khosla Ventures has backed companies like Square, OpenAI, and Stripe. Vinod Khosla personally stepping in to lead a fintech's growth round is an endorsement from someone who has seen what "building something that matters" actually looks like from the inside.
Aven's advisory board reads like a who's-who of American financial regulation: Kevin Warsh, a former Federal Reserve governor. Michael DeVito, former CEO of Freddie Mac. Tim Mayopoulos, former CEO of Fannie Mae. Lawrence Summers, former U.S. Treasury Secretary. Patrick McHenry, former Chair of the House Financial Services Committee. Jim Messina, former White House deputy chief of staff.
The common thread is institutional knowledge of how the American housing and credit system actually works - and how it can be changed. Khan did not just build a product. He assembled the network of people most qualified to help him navigate the regulatory, capital markets, and political infrastructure that governs consumer lending at scale.
Sadi Khan on leadership, building Aven, and why conviction matters more than timing when you're solving a $1 trillion problem.
Watch on YouTubeRational decisions scale better than emotional ones - they're predictable and easier for teams to execute. Khan applies this from his daily outfit (same one, every day) to how he runs leadership meetings.
Same black shirt, same Patagonia vest, daily. No alcohol. Home cooking. The fewer decisions you make about small things, the more decision-making bandwidth you have for large things.
Intelligence, work ethic, and mission alignment - in that order. Not just "smart" in a room, but capable of sustaining effort over years and personally invested in the outcome.
"If I were to know everything that will happen to me between today and my death, I'll be very happy." Predictability is not a bug. It is the feature. Boring companies that solve real problems outlast exciting ones that don't.
Entrepreneurs need "an extreme level of conviction that the problem you're working on is worth decades of your life." Khan spent a year thinking after Facebook before founding Aven. That year was part of the strategy.
Fixed weekly leadership meetings to lock in the roadmap before Monday. Predictable cadence creates predictable output. The ritual is the infrastructure.
Our goal is to build a product with the lowest cost of capital for consumers after your primary mortgage.
Rational decisions scale better than emotional ones because they're predictable and easier for teams to execute.
I love boring: Boring is great. I have no need for surprises or excitement.
Since the 1950s, we have steadily, almost monotonically, gone up from zero to a trillion dollars of credit card debt.
In as fast as 15 minutes, save 50% or more on your monthly interest rate.
I do think some strong and healthy regulations were passed post-'08 that try to protect consumers - and frankly, lenders as well.
Khan wears the same black shirt and Patagonia vest every day - Silicon Valley's answer to Steve Jobs' black turtleneck, but with a spreadsheet about decision fatigue behind it.
Aven's application takes 15 minutes. A traditional HELOC from a bank takes 4 to 6 weeks. Khan compressed a month of bank process into a lunch break.
His Twitter bio lists Internet.org, Maps, Search, Ads, Visual Studio, and Xbox in one breath - the career of someone who solves different problems using the same mental model.
Khosla Ventures' Vinod Khosla personally led Aven's Series E. That's not typical. It signals a level of conviction that goes beyond routine portfolio management.
Aven's advisory board includes the former governor of the Federal Reserve and the former Secretary of the Treasury. Khan assembled the people who built the system he's trying to make cheaper.
Aven has a 4.9-star rating on Trustpilot across 5,000-plus reviews. Getting that kind of score from credit card customers is genuinely rare - most credit card companies hover around 1-2 stars.