MLH Fellowship Active 2026

Stripe Open Source

Developer Tooling & Compilers6 Program Years

Stripe Open Source

About the Organization

Stripe develops open source tools for payments, developer ergonomics, Sorbet Ruby typechecker, and Markdoc content engines.

Primary Technologies & Languages

c++rubytypescriptjavascript

Technical Topics & Focus Areas

compilertypecheckerdocumentationpayments

Participation Years

Draft Project Proposal for Stripe Open Source

Completed Projects Distribution

Annual Completed Projects History

Stripe Open Source

Hover over bars to view completed counts

202120222023202420252026

Projects2

Years Active6

Stackc++

TierTier 1

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Past Projects

Showing 2 of 2 projects. Click any project card for scope, mentors, and proposal studio.

2 total projects

Sorbet Ruby Typechecker Fast Incremental Type Checking

Advanced

Mentors: Jake Zimmerman, Dmitry Petrashko

Enhance the C++ LSP server to support parallel file re-indexing during live editor typing in large monorepos.

350h (Large)$6k–$13.2k

c++rubylsp

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Markdoc Schema-Driven Interactive Component Extensibility

Intermediate

Mentors: Michael Shapiro

Extend the Markdoc abstract syntax tree engine with dynamic custom tags and AST validation hooks.

175h (Medium)$3k–$6.6k

typescriptreactjavascript

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Stripe Open Source