Yaron Shaer

YARON SHAER

Chief Technology Officer
Klarna
Fintech BNPL
2025 TOP 30 EMEA CTOs 2025

Career History

Klarna is a global leader in payments software for e-commerce, offering customers a seamless checkout experience and its well-known “buy now, pay later” (BNPL) service. Once Europe’s most valuable private fintech, it reached a valuation of about $45bn in 2021. Yaron has been Chief Technology Officer since 2022, overseeing the company’s engineering strategy while also serving as Chief Information Security Officer. He has driven Klarna’s expansion of its open-banking platform, Klarna Kosma, and is leading efforts to scale and improve the infrastructure needed for global product launches.

He joined Klarna in 2014 as Senior Engineering Manager, leading teams on the core system, Kred. Over the following years, he took on broader leadership positions, guiding the Platforms domain as it evolved into Servicing and later into DBS. In 2018, he was promoted to Vice President of Engineering, before stepping up as CTO four years later, alongside acting as competence owner for engineering.

Before Klarna, Yaron was Software Delivery Manager at Camelot Strategic Solutions and previously held software development leadership roles at Nokia. He holds a BSc in Software Engineering from Tel Aviv University, completed in 2002.

About Klarna

Founded in Stockholm in 2005, Klarna has grown into one of the world’s largest fintechs, serving over 150 million active users and processing more than 2 million transactions each day. Its checkout technology is embedded across thousands of e-commerce sites, and the company employs over 3,800 people in offices spanning Stockholm, London, New York, Berlin and beyond. Klarna provides a seamless payment system for online stores, handling card payments, direct bank transfers and its own financing options. It also offers a consumer app that lets users browse and buy from thousands of merchants, pay immediately or later, and manage their purchases in one place.

In 2025, Klarna relaunched its US initial public offering (IPO), raising $1.37bn at a valuation of $17bn on its first day of trading. The company has also launched a pilot debit card program in the US, with plans to extend into European markets.

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