About the role

Engineer developing decentralized messaging protocols for the Logos Messaging Team. Collaborating on SDK and technical documentation with a small team focusing on real-world communication systems.

Responsibilities

Implement our messaging protocols in our reference SDK, translating protocol specs into reliable, production-quality Rust
Own the API design and developer experience of the SDK surface — abstractions, ergonomics, and developer-facing documentation
Contribute to messaging protocol specifications alongside the team
As a member of a small team, you'll wear many hats — picking up problems outside your immediate lane, learning as you go, and growing with the team
Write clear technical documentation and participate in async design discussions with collaborators across the project

Deep familiarity with real-world instant messaging systems - you've worked on, contributed to, or spent serious time understanding how systems like Signal, Matrix, XMPP, or similar are built, where they make tradeoffs, and where they struggle
Experience with decentralised computing - peer-to-peer systems, distributed networks, or decentralised application infrastructure
Comfort working directly with cryptographic primitives - signatures, ciphers, and key exchanges and an understanding of secure private messaging principles such as forward secrecy, post-compromise security, and key management
Solid Rust experience: comfortable writing reliable, maintainable code in a team setting
Previous experience with Web3, blockchains, open protocols, and the values that underpin them
A strong alignment to our principles: https://logos.co/manifesto/

The expected compensation range for this role is negotiable, dependent on how we assess your skills and experience throughout our interview process. We are happy to pay in any mix of fiat/crypto.