Software Engineer, Product Infrastructure, TypeScript DevEx

Replit

full-time

Posted on: 9/5/2025

Location: California • 🇺🇸 United States

✨ AI Apply

💰 $180,000 - $250,000 per year

Mid-LevelSenior

GraphQLReactTypeScriptWebpack

About the role

Accelerate engineering velocity and reduce friction in the Replit development experience by stewarding the TypeScript monorepo, tooling, and developer workflows.
Maintain and evolve a complex monorepo structure spanning frontend, backend, npm packages, and tooling.
Own and optimize build pipelines to minimize build times and improve developer iteration speed.
Improve and oversee code generation (GraphQL, Protocol Buffers) to ensure type safety.
Set standards for code quality using automation tools (TypeScript, Prettier, ESLint), including building custom rules and plugins.
Streamline local development setup and onboarding experience.
Work with platform teams to improve deployment processes, infrastructure integrations, and external tooling.
Lead migrations to newer, faster tools and keep the codebase modern.
Manage internal and external dependencies and represent the company when interfacing with open-source libraries.
Act as a key decision maker for the Agent’s default stack (Vite + React + Express) and support the AI team.

Expertise in TypeScript build systems such as Vite, TypeScript, webpack, and so on.
Proficiency with ESLint, Prettier, testing frameworks, and code generation tools.
Experience managing monorepos or large-scale codebases
Experience with code generation such as GraphQL and Protocol Buffers to ensure type safety.
Familiarity with Vite, React, and Express (Agent default stack).
Willingness/ability to work from Foster City, CA HQ 3 days per week (Monday, Wednesday, Friday) or relocate near Foster City if not currently in the Bay Area.
Authorization to work in the United States (app asks if legally authorized and about visa sponsorship).