Senior DevTools Engineer - AST, CLI, CI/CD

Salary: 27.000 - 32.000 RON net per month Requirements:

• Built a product, npm library, CLI tool, or side project that others have used
• 5+ years of production experience with TypeScript and Node.js
• Hands-on experience building developer tools using AST manipulation (Babel plugins, ESLint plugins, transpilers, or similar) used by others
• Hands-on experience building CLI tools used by others (Commander.js, Ink, oclif, or similar)
• Experience with build tools ecosystem (Babel, SWC, esbuild, Webpack, Vite, source maps, tree-shaking)
• Experience with monorepo tooling (Nx, Turborepo, or similar)
• Expert React knowledge
• CS degree or equivalent - algorithms, data structures, system design
• Prior remote work experience in distributed teams
• Since it's much more fun to brainstorm ideas and solve tricky CS challenges live, we expect you to be available 7-10am San Francisco time daily
• Fluent English
• Deep knowledge of AI coding tools and workflows - you use them daily and know how to get the most out of them

Responsibilities:

• Design and maintain the Lingo.dev Compiler architecture (AST traversal and manipulation for build-time localization) with focus on developer experience
• Build and maintain CI/CD integrations (GitHub Actions, GitLab CI, Bitbucket Pipelines)
• Design and maintain the Lingo.dev CLI - performance, extensibility, and developer experience
• Contribute across the full stack (frontend, backend, databases) when needed to ship features end-to-end
• Take full ownership of features from design to deployment: draft technical designs, review with founders, implement end-to-end with tests and documentation
• 3 sprints of product roadmap work, 1 cooldown sprint (customer feature requests, improvements, bug fixes)
• Weekly Demo Days with the senior engineering team

Technologies:

• AI
• Babel
• Backend
• BitBucket
• CI/CD
• ESLint
• Frontend
• GitHub
• GitLab
• NPM
• React
• TypeScript
• Webpack
• NodeJS
• JavaScript

More:

We started Lingo.dev at a hackathon and, after winning the best dev tool award, we just kept building. It evolved into a developer-loved toolkit with hundreds of active users, 7,000 weekly CLI runs, 5,000 GitHub stars, and over 100 million translated words. We've graduated from the world's best tech accelerator (Y Combinator) and raised venture funding to continue building developer tools that must exist but don't yet.

We're a small, fully remote team of senior engineers who like to work hard on interesting problems. We value computer science craft over corporate politics and love building tools for developers - including ourselves. Recently we started getting more feature requests than we can ship, so we're excited to expand the team.

**Please don't use AI to apply.** We're an AI-native company, so we'll notice if you do. We want to know how you think and write.

last updated 40 week of 2026