Senior Protocol Engineer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Protocol Engineer based in Germany. We are looking for an experienced Senior Protocol Engineer to contribute to the development and scaling of an innovative Bitcoin-secured Layer 2 blockchain infrastructure. In this hands-on engineering role, you will work on critical protocol components, including sequencing, block derivation, consensus, finality, bridges, and proof systems. You will join a small, highly skilled team of senior engineers where technical ownership, autonomy, and collaboration are essential. From designing and implementing core protocol features to testing and operating upgrades on live networks, you will have a direct impact on the reliability, security, and performance of the blockchain ecosystem. You will also contribute to architectural decisions, open-source development, and continuous improvements across a complex distributed system. This is an exciting opportunity to work with cutting-edge blockchain technology in an international, remote-first environment.