Rust-Simplicity Maintainer

Responsibilities

• Act as the primary steward of Blockstream’s Rust-based Simplicity implementation and associated libraries.
• Maintain and expand multiple crates, including rust-simplicity, SimplicityHL, hal-simplicity, rust-elements, and elements-miniscript.
• Perform architecture, implementation, review, and maintenance of libraries covering the Simplicity blockchain language.
• Provide high-quality code reviews to ensure all merges have independent sign-off.
• Maintain and improve CI pipelines to ensure robust, automated testing and quick feedback.
• Collaborate with other teams to integrate Simplicity into projects like Elements and Liquid.
• Manage GitHub issues, review pull requests, and guide open-source contributors.
• Maintain clear, developer-friendly documentation for internal and external audiences.

Requirements

• Strong proficiency in Rust (2+ years of professional experience preferred).
• Familiarity with Bitcoin, blockchain protocols, or cryptographic systems.
• Strong written communication skills and the ability to work effectively in a globally distributed team.

Preferred Qualifications

• Proven track record of maintaining or leading open-source projects.
• Knowledge of formal methods, theorem provers, or functional languages like Haskell.
• Understanding of Simplicity’s design goals and architecture.
• Experience with blockchain virtual machines, scripting systems, or transaction policy tools like Miniscript.
• Prior contributions to Bitcoin Core, Elements, or related protocol implementations.

About the Company

Blockstream was founded in 2014 by Dr. Adam Back and a group of cryptographers and engineers passionate about Bitcoin. As a leading Bitcoin company, Blockstream provides cutting-edge infrastructure solutions, including self-custody solutions, financial products, second-layer scaling technologies, and enterprise-grade blockchain infrastructure.