Blockstream is seeking a Rust-Simplicity Maintainer to oversee its Rust-based implementation of the Simplicity language and related libraries. The role centers on maintaining multiple interconnected crates—such as rust-simplicity, SimplicityHL, hal-simplicity, rust-elements, and elements-miniscript—ensuring they function cohesively within the broader Simplicity ecosystem.

This position involves architecture, implementation, testing, and long-term maintenance responsibilities, including integration with other Bitcoin-related projects. The maintainer will also review contributions, coordinate with open-source collaborators, and support internal teams building on Simplicity. Clear technical documentation and consistent code quality oversight are core expectations.

🔹 Responsibilities

• Maintain and extend the Rust implementation of Simplicity, including CI and QA improvements.
• Oversee multiple connected Rust crates and ensure consistent functionality across them.
• Provide maintainer-level code reviews to ensure independent signoff for all merges.
• Improve and monitor continuous integration pipelines for automated testing.
• Collaborate with teams integrating Simplicity into projects such as Elements and Liquid.
• Engage with the open-source community through PR reviews, issue management, and contributor guidance.
• Keep internal and external documentation accurate, clear, and up to date.

🔹 Requirements

• Proficiency in Rust with approximately 2+ years of professional experience.
• Understanding of Bitcoin, blockchain systems, or cryptography.
• Strong written communication skills and ability to collaborate remotely across global teams.

🔹 Preferred Qualifications

• Experience maintaining or leading open-source software projects.
• Familiarity with formal methods, theorem provers, or functional languages (e.g., Haskell).
• Knowledge of Simplicity’s architecture and objectives.
• Background with blockchain virtual machines, scripting, or Miniscript tooling.
• Previous contributions to Bitcoin Core, Elements, or similar protocol implementations.

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