Senior Product Engineer - React, Node.js, UX

Salary: 27.000 - 32.000 RON net per month Requirements:

• Built a product, app, or side project that others have used - could be a tool for a friend, a small SaaS, anything real people relied on
• 5+ years of production experience with TypeScript and Node.js
• Expert React knowledge - Suspense-first patterns, skeleton loaders, loading states
• Experience with SSR, CSR, and SSG
• Deep expertise with React routing libraries
• Built or contributed to design systems / component libraries used by others
• Experience designing navigation, onboarding flows, and user journeys
• Backend experience with Node.js (Express.js or similar) and PostgreSQL
• Experience designing production-ready APIs
• Experience with authentication and authorization systems
• 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, develop, and grow the Lingo.dev web application - routing, navigation, onboarding flows, user experience, performance
• Design, develop, and scale the backend API - encapsulation, API design, security
• Design and maintain the database layer (PostgreSQL)
• Contribute across the full stack when needed to ship features end-to-end
• Build and maintain third-party integrations
• Contribute to our open-source devtools (CLI, AST-based compiler) when needed
• 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
• API
• Backend
• GitHub
• PostgreSQL
• React
• Security
• TypeScript
• Web
• NodeJS
• ExpressJS
• 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