This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Principal Software Engineer based in Germany. This is an opportunity to join a high-impact engineering team building security solutions used by millions of people worldwide. In this role, you will lead the technical direction of innovative browser-based security products, solving complex engineering challenges and delivering scalable features that protect users from evolving digital threats. You will have significant autonomy to influence architecture, design decisions, and engineering practices while collaborating with talented teams across product, UX, QA, and development. The position is ideal for a senior technical leader who enjoys building reliable software, mentoring engineers, and applying modern technologies to create meaningful customer impact. You will work in a collaborative environment where innovation, ownership, and engineering excellence are highly valued.