Trustly's attack surface is a payment rail. Founded in Stockholm in 2008, the company operates the world's leading Pay by Bank platform - a system that moves money account-to-account across open banking networks, bypassing card schemes entirely. That means the threat model is financial infrastructure at scale: over $93 billion in annual transactions flowing through connections to 12,000 banks in 33 markets, serving more than 9,000 merchants and reaching 650 million consumers. No cards in the middle, but plenty of endpoints to defend.
The core technical domains - open banking technology, payment processing, fraud prevention, and data analytics - converge in the Azura data engine, which personalizes checkout flows and claims fraud rates as low as 0.012%. For security teams, the interesting part is that every transaction is a direct bank-to-bank handoff; authentication, authorization, and fraud detection have to work in real time across thousands of banking integrations with no card-network fallback. The company's mission to eliminate payment intermediaries doesn't simplify the security problem - it sharpens it.
Operating from Stockholm and across 33 global markets, Trustly is hiring into a stack where payment integrity, open banking protocol security, and anti-fraud engineering aren't bolt-on functions. They're the product. If you want to work on financial infrastructure where the blast radius of a vulnerability is measured in billions of dollars of transaction volume, the scope here is real and documented.
