Full Stack Firebase + React

CXntury is looking for a Full-Stack Developer who enjoys taking ownership and building features end-to-end — from database to UI.

You’ll work with a production product, improve an existing codebase, and use AI coding tools as a real part of your everyday engineering workflow.

What you’ll work with

• Node.js + React
• JavaScript / TypeScript
• Firebase: Cloud Functions (2nd gen), Firestore, Auth, Hosting, Emulator Suite
• Google Cloud: Cloud Run, Cloud Tasks, Cloud Logging
• Stripe: Connect, PaymentIntents, refunds, webhooks, holds & captures, idempotency

• GitHub Actions and CI/CD

   

What we’re looking for

• 1+ year of commercial experience shipping production software as a Full-Stack Engineer
• Strong Node.js and React skills
• Experience working with and maintaining a large existing codebase
• Ability to make focused improvements instead of rewriting everything from scratch
• Production experience with Firebase and Stripe
• Comfortable owning a feature independently — backend, database, frontend and deployment
• Daily hands-on experience with AI coding tools like Claude Code, Cursor, Copilot or similar
• You know how to use agentic AI workflows and, more importantly, how to review AI-generated code critically

• English B2+ for daily written communication

   

What we offer

• 🌍 International team and product
• 💻 Remote-friendly environment
• 🤖 AI-first engineering culture
• 🚀 Real ownership and autonomy
• 📈 Opportunity to grow with the product

• 🤝 Small team with direct communication and minimal bureaucracy

   

Ready to build, improve and ship? Let’s talk!