Sebastian Siemiatkowski and two co-founders conceived Klarna in 2005 while studying at the Stockholm School of Economics. The idea was precise: let shoppers receive goods immediately and settle the bill later, with Klarna handling the credit and payment mechanics between buyer and merchant. Early investors were skeptical. Consumer credit was a regulated, capital-intensive business, and convincing established financial institutions to partner with an unproven student startup was far from straightforward. Siemiatkowski pressed on, and Klarna launched first in Sweden before expanding into other Nordic markets.
Building a Pan-European Platform
From its Swedish base, Klarna pushed into Germany, the Netherlands, the United Kingdom, and eventually the United States, partnering with major retailers along the way. The product evolved well beyond its original core. Klarna repositioned itself as a shopping companion, letting users track deliveries and manage multiple purchases across a single interface. This shift, from purely transactional tool to lifestyle platform, reflected competitive pressure from rivals including Afterpay and Affirm, as well as Siemiatkowski’s attention to consumer behaviour.
Klarna’s private valuations were closely watched in European tech. At its peak in 2021, the company was valued at approximately 45.6 billion US dollars. By mid-2022, in a sharply different interest-rate environment, that figure had contracted to around 6.7 billion dollars following a down round. Siemiatkowski addressed the reversal publicly. He acknowledged the structural shift in capital markets and framed cost discipline as the necessary response.
Regulatory Headwinds and Workforce Reduction
Buy now, pay later products attracted regulatory attention across the United Kingdom and the European Union, where authorities raised concerns about consumer indebtedness and the clarity of short-term credit terms. Klarna adjusted its disclosures and risk practices, engaging with regulatory consultations including those relating to a proposed extension of the UK Consumer Credit Act to deferred payment products.
In 2022, Klarna cut approximately 10 percent of its global workforce. Siemiatkowski communicated the decision in a video message to employees, citing rising inflation and falling consumer confidence, which had made the existing cost structure unsustainable. In that message, Siemiatkowski named the structural causes and accepted responsibility for the timing of hiring decisions made before the economic downturn.
AI and the Labour Market: No Comfortable Answers
Siemiatkowski has spoken publicly and repeatedly about artificial intelligence’s impact on employment. Cited alongside Zoom CEO Eric Yuan and Ford CEO Jim Farley in Fortune’s reporting on AI and the future of work, he acknowledged that some roles within Klarna and the broader economy will be eliminated by automation. He has not framed this as straightforwardly positive transformation.
Klarna has deployed AI tools in customer service and internal operations. The company stated in 2024 that its AI assistant was handling a volume of customer queries equivalent to the output of 700 full-time agents. Siemiatkowski has pointed to this as evidence that the shift is already underway, not a distant scenario.
Polish-Swedish roots and responsibility for automation’s impact
One detail illustrates Siemiatkowski’s approach: his refusal to speak about disruption in abstract terms when its human cost is immediate. He co-founded a company that uses algorithms to assess creditworthiness in seconds, a capability that has reduced the need for certain traditional roles in financial assessment. And he has said, without hedging, that more of this is coming.
He has spoken about his Polish heritage and Swedish upbringing, and about arriving at business school without an established professional network. That distance from the usual corridors of power may help explain the directness of his communications on difficult subjects. For a founder whose platform processes millions of transactions daily and employs thousands of people across multiple markets, the question of what AI does to those people’s working lives is, in his own framing, a direct and personal responsibility rather than an abstraction to be managed from a distance.
