Decentralised Messaging Engineer - Rust

About this role

Join Logos' messaging team to engineer decentralized communication infrastructure using Rust. You'll implement cutting-edge messaging protocols, design developer-friendly SDKs, and contribute to open specifications that enable permissionless, privacy-first communication networks.

What you'll do

• Implement messaging protocols in Rust SDK, converting protocol specifications into production-grade code
• Design and own the SDK's public API, documentation, and developer experience
• Contribute to messaging protocol specification development with the team
• Handle diverse technical problems across the project in a small team environment
• Create technical documentation and participate in async design discussions

What they're looking for

• Rust programming (production-quality, team-oriented code)
• Deep knowledge of instant messaging systems (Signal, Matrix, XMPP, etc.)
• Decentralized and peer-to-peer systems architecture
• Cryptographic primitives (signatures, ciphers, key exchanges)
• Secure messaging principles (forward secrecy, post-compromise security)
• Message Layer Security (MLS) or OpenMLS
• P2P transport layers (Waku, libp2p)
• Post-quantum cryptography (bonus)

Benefits

• Remote, worldwide position with async work flexibility
• Work on frontier cryptography and decentralized protocol problems
• Real ownership over SDKs enabling open communication
• Small team environment with significant growth opportunities
• Flexible compensation in fiat or crypto
• Alignment with Web3 and open internet principles