Senior Fullstack Developer (React, Node.js & Python)

Do you build apps and scalable platforms — not just features?

Have you developed React and React Native applications, built Python backends, integrated Stripe subscriptions, and successfully published apps to the App Store and Google Play?

Do you work AI-first and use AI both inside the product and in your development workflow?

Then join Erdbaron as Senior Fullstack SaaS Developer (AI-Focused)

Erdbaron builds AI-driven apps and digital platforms in the field of geotechnics, material flow management and regulatory infrastructure.

We develop web applications, mobile apps and backend systems that combine automation, subscription models, AI-based features and scalable cloud architecture.

We are looking for a strong fullstack developer who understands how to build and ship production-ready apps and platforms — from frontend to backend, billing, publishing and AI integration.

This is not a maintenance role. This is about building real products.

Your Responsibilities

• Build modern web applications using React
  




• Develop and maintain mobile apps with React Native
  




• Develop scalable backend services using Python (e.g. FastAPI)
  




• Design clean and robust API architectures
  




• Implement SaaS structures (user roles, permissions, multi-tenancy)
  




• Integrate and manage Stripe (subscriptions, billing logic, webhooks)
  




• Publish and maintain apps in Apple App Store and Google Play
  




• Integrate AI services (LLM APIs, automation workflows, AI-powered features)
  




• Deploy and maintain cloud-based production systems
  




• Optimize performance across frontend and backend
  




• Integrate with Zoho systems (CRM, Creator, Books, Sprints)
  




• Actively use AI tools in your development workflow
  
  
  

Our Tech Stack

• React (Web)
  




• React Native (Mobile)
  




• Python (Backend & AI integration)
  




• FastAPI / REST APIs
  




• PostgreSQL
  




• Stripe (subscriptions & billing)
  




• Zoho (CRM, Creator, Books, Sprints)
  




• Cloud infrastructure
  




• AI APIs & automation workflows
  

Requirements

• Strong experience with React and React Native, Node.js
  


• Solid backend experience with Python
  


• Experience building and launching apps or digital platforms
  


• Hands-on experience with Stripe (subscriptions, webhooks, payment flows)
  


• Proven experience publishing apps in App Store Connect and Google Play Console
  


• Experience with relational databases (e.g. PostgreSQL)
  


• Experience with cloud deployments and CI/CD
  


• Experience with Zoho integrations is a strong plus
  


• Experience with AI integration or strong interest in AI-driven development
  


• Ability to work independently with high ownership
  


• Strong English communication skills
  

Benefits

• Build real AI-driven apps and platforms
  


• High ownership and technical impact
  


• Direct collaboration with the founder
  


• International setup
  


• Fast decision-making
  


• Long-term growth opportunity