Programming Language Developer

Blockstream

full-time

Posted on: 9/20/2025

Origin: • 🇺🇸 United States

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Mid-LevelSenior

HaskellRust

About the role

Design and implement a robust unit testing and integration testing framework for SimplicityHL programs.
Develop tooling for modular code organization, dependency management, and distribution of SimplicityHL libraries.
Define and implement versioning schemes for SimplicityHL code, with clear migration and compatibility strategies.
Build command-line tools, editors/IDE integrations, and build scripts to improve the developer experience.
Create automated documentation generators and guidelines for language/library docs.
Work with the research team to plan and manage releases of the SimplicityHL toolchain and associated libraries.
Collaborate with Simplicity language researchers to turn SimplicityHL into a complete, usable platform and impact developer workflows.

Proficiency in Rust, Haskell, or other statically-typed systems programming languages.
Strong understanding of software architecture for modular systems (package managers, dependency graphs, build pipelines).
Experience designing unit testing frameworks or automated testing tools.
Solid understanding of versioning strategies (e.g., semver, language evolution policies).
Strong communication skills and ability to work in a distributed team.
Familiarity with functional programming languages and blockchain/cryptographic concepts.
Prior experience building developer tooling or compiler infrastructure.
Prior experience with smart contract platforms or domain-specific language tooling.
Contributions to programming language ecosystems, open-source developer tools, or CI/CD systems.