The first version of Andrew Rostami’s career ran in a basement. As a kid, he has recalled, he programmed in his parents’ house. The setting was ordinary; the habit was not. Programming asks a person to imagine a system, define its rules, find its failures, and keep adjusting until the parts behave together. That same sequence would follow Rostami through software engineering, portfolio analysis, management consulting, consumer banking, embedded finance, and finally the used-car lot.
His résumé can look like a collection of industries. It makes more sense as a progression of systems. Code taught him dependencies. Investment management at Moore Capital Management put risk and portfolio behavior in view. Bain & Company added corporate strategy, growth, sales, and customer experience. Citizens gave him the chance to run the machinery instead of advising from outside. Credit Acceptance placed that machinery inside one of the most consequential consumer purchases: a car.
Across those moves, Rostami kept returning to the same practical problem. Credit is invisible architecture. A consumer notices the monthly payment. A merchant notices whether a sale happens. A dealer notices when cash reaches the account. The lender sees underwriting, servicing, and loss. A good product has to make sense from all four seats without pretending their interests are identical.
An engineer walks into a bank
Rostami earned an engineering and computer science degree from Cornell, then an MBA from Wharton. In between and after those classrooms came the less tidy education of institutions: early software work, the risk desk, consulting engagements, and the internal politics of a large bank. By 2014 he was at Citizens Financial Group. His work there crossed corporate strategy and development before moving deeper into cards, unsecured lending, and point-of-sale finance.
Point-of-sale lending sounds like a narrow feature: put a button near checkout and divide the price. Rostami’s public argument was broader. Merchants did not merely need a pay-in-four widget. Bigger purchases could require longer terms, promotional rates, competitive annual percentage rates, reusable credit, marketing, and sales support. The finance had to fit the product and the relationship around it.
“It’s not just about our brand, it’s about powering the merchant.”Andrew Rostami on point-of-sale lending
That framing helped explain Citizens Pay, the name Citizens gave its expanding platform in 2021. Its programs sat behind purchases from recognizable partners and retailers, including Apple, Microsoft, and BJ’s Wholesale Club. Some were designed around repeat purchases rather than a fresh application every time. Some linked a product subscription or upgrade cycle to financing. The bank supplied underwriting and a balance sheet; the merchant gained another way to shape a customer relationship.
The numbers mattered because they demonstrated that a bank could behave like a product company at checkout. Yet Rostami was careful in interviews to put boundaries around convenience. Predictable installments could be useful for considered, occasional purchases. Financing groceries every month was a different proposition. Transparency did not remove responsibility; it made responsibility easier to see.
From checkout to the car lot
In April 2022, Rostami left Citizens to become Chief Marketing and Product Officer at Credit Acceptance. The Michigan company works through a nationwide network of auto dealers, financing consumers across credit histories and reporting payment activity to the national credit bureaus. The move carried familiar product questions into a less forgiving environment. A phone or television can be postponed. For many Americans, a reliable vehicle is the route to work, school, groceries, and nearly everything that happens beyond home.
Rostami described the dealer as his primary customer. That sounds surprising until the distribution model is visible: the dealer meets the buyer, presents the program, submits the deal, delivers the vehicle, and depends on timely funding. Improve the dealer’s experience and more consumers can reach the product. Ignore the dealer’s workflow and even generous strategic language turns into friction.
His public account of the work was notably operational. Credit Acceptance used market area managers to help dealers grow, backed them with a dealer support center, refined onboarding, and expanded options for consumers nearer the prime boundary. The company’s portfolio program sought to align the dealer’s economics with a satisfied customer and a reliable vehicle. Later, real-time payments gave enrolled dealers access to funding as often as six times a day, weekends and holidays included. For a small operator buying inventory, speed is not decorative. It is working capital.
When a product reaches customers through a partner, treat the partner’s workflow as part of the product. Training, support, funding speed, and incentives are features too.
That is the thread connecting the electronics checkout with the independent dealership. In both places, finance is embedded in somebody else’s moment. The lender does not own the entire experience. It has to earn its place by making the merchant or dealer more useful to the person standing in front of them.
The work beneath the roadmap
Rostami’s language about teams offers another clue to his operating style. After a 2024 offsite for Credit Acceptance’s product and marketing leaders, he wrote that the group discussed the strategic roadmap but spent most of its time on what powered the work: culture, cross-functional partnership, teamwork, test-and-learn execution, and fun. It is easy for a financial company to say “customer” while organizing itself around departments. Putting product and marketing together creates a chance to organize around a journey instead.
The pairing also suits his biography. Engineering asks whether the system works. Marketing asks whether a person understands why it matters. Strategy decides where to place the bet. Risk determines how far it can extend. Rostami has occupied each of those perspectives without presenting them as separate identities.
There are connections here, too. Citizens Pay depended on national brands and retailers. Credit Acceptance depends on thousands of dealerships. Bain trained him to move among functions; engineering gave him fluency with technical teams. On the Used Car Dealer Podcast in 2024, he moved easily from macro lending conditions to dealer onboarding, portfolio incentives, management-system integrations, and economic mobility. The scale changed from a child’s program to millions of accounts. The instinct to trace dependencies stayed put.
The podcast also showed how he defines innovation without reaching for novelty. He pointed to integrations that could reduce manual work for independent dealers, financing choices that could serve customers across more credit tiers, and feedback gathered from the people using the program. None of those ideas depends on a dramatic reveal. They depend on noticing where a dealer pauses, where a customer drops out, or where information has to be entered twice. In that telling, innovation is accumulated relief: fewer seams in a process that already carries plenty of weight.
“We just actively listen to dealers’ needs and concerns and evolve when needed.”Andrew Rostami, 2024
A deliberate handoff
On July 27, 2026, Credit Acceptance announced a change. Siddharth Lal would become Chief Marketing Officer, with marketing and product brought under his leadership. Rostami and Chief Technology Officer Ravi Mohan would step down effective August 14. Both were expected to support the transition for six months.
The announcement closes Rostami’s four-year chapter at the company but does not yet supply the next title. The handoff itself fits the operating story. Complex systems rarely tolerate abrupt exits. Knowledge sits in roadmaps, relationships, exceptions, and decisions that were never important enough to become a slide. Six months gives that hidden architecture time to travel.
What remains visible is a career built around consequential yeses. Yes, the customer can spread a large purchase into predictable installments. Yes, the merchant can create a longer relationship. Yes, the dealer can fund another vehicle. Yes, a consumer with a difficult credit history may still find a route to ownership. Each answer carries conditions, costs, underwriting, and responsibility. Rostami’s work has lived in those conditions.
He has also been willing to describe where a product should stop. In a 2022 conversation about installment lending, he contrasted an occasional, planned purchase with an expense that returns every week. The distinction is useful because a smooth interface can make every transaction look alike. The household budget knows otherwise. Product design can clarify the term, payment, and total obligation; underwriting can test capacity; neither can turn a recurring shortfall into a sustainable purchase. His point was modest but important: convenience is valuable only when it preserves the consumer’s ability to understand the commitment being made.
The useful lesson is not that complexity should disappear. It cannot. The lesson is to decide where it belongs. Good financial products hold complexity inside the institution and present a clear next step outside it. They connect the screen to the support desk, the approval to the funding rail, the merchant’s sale to the consumer’s obligation, and the roadmap to the people expected to ship it.
A child learning to program eventually discovers that the difficult part is not getting one line to run. It is getting the whole system to keep its promises. Rostami’s path through finance is a larger version of that discovery. The interface may change. The promise is still the product.