Protocol Engineer

1 week ago


Tel Aviv, Tel Aviv, Israel Ethosia Full time ₪90,000 - ₪120,000 per year

We're looking for a Protocol Engineer to join our core engineering team and help shape the next generation of privacy-first blockchain infrastructure. You'll work on low-level protocol design, FHE integration, and the tooling that powers secure computation at scale.

This role is ideal for someone who thrives in deep technical systems, cares about clean architecture, and is excited to bring novel cryptography to production-grade network

Requirements:

● 4+ years of experience in backend software development.

● Proficient in at least one system-level or backend-focused language such as Go, Rust, C++.

● Strong computer science fundamentals - data structures, algorithms, concurrency, operating systems, and networking.

● Strong background in system design, performance tuning, and testing

● Comfort-owning services end-to-end: from design and implementation to monitoring and maintenance.

● Comfortable operating in uncharted territory - able to ramp up on new languages and concepts rapidly and solve problems where no clear path exists.

● Experience working in high trust, async, globally distributed team

Bonus Points:

● Solid understanding of blockchain fundamentals (Ethereum and EVM or equivalent, L2s, bridges, rollups) or experience building distributed systems.

● Experience with Rust, Go or C++.

● Contribution to open-source projects, research collaborations or relevant technical blogs/public talks.

● Familiarity with zero-knowledge proofs, multi-party computation, or FHE



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