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!
