Senior Mobile Security Engineer — Offensive iOS/Android

Klarna is seeking an offensive mobile security specialist to test and harden its iOS and Android apps. You will reverse‑engineer binaries, identify sandboxing and permission weaknesses, and drive fixes with engineering teams.

You’ll work using OWASP MASVS/MASTG as your guide, with experience in Frida, MobSF, Burp Suite and related tools. A fintech security background is a bonus; hybrid work is common.