Senior Rust Engineer (80-100%)

Threema is the world's best-selling secure messenger for both private users and businesses. Since 2012, we have been working tirelessly to ensure that our users can communicate freely without worrying about their privacy. Our growing user base includes millions of private customers and thousands of businesses and organizations from all over the world.

We are growing and looking for a new team member to join as a

Senior Rust Engineer Backend (80-100%)

The role

We're looking for a senior engineer to help design and build the core services behind our messaging backend. You'll work on the systems that handle message delivery, real-time presence, and end-to-end encryption at scale. Most of our backend is written in Rust, and we're expanding it further.

You'll join a small team of engineers who care about correctness, performance, and keeping things simple. Expect to write production code, review other people's code, and have a say in architecture decisions from day one.