Senior Fullstack Developer – Claude Code Expert

Role Overview

• Support during the launch and post-launch phases by:
• Finalizing development of the feature set for launch
• Establishing best practices within the team
• Transitioning processes from a development to an operations mode
• Benchmarking IT infrastructure and defining the technical roadmap

Requirements

• Extensive experience in AI-based software development — Claude Code experience preferred
• Backend
• TypeScript (advanced level)
• Firebase / Google Cloud Platform ecosystem
• Node.js / Express
• REST API design — deep understanding of HTTP, status codes, and error handling
• OAuth2 / JWT authentication based on the Firebase solution
• Proven ability to implement GitHub-based CI/CD pipelines for Firebase Functions across development, staging, and production environments
• Experience with Twilio integration and Stripe integration
• Nice to have — Backend:
• Experience with Firebase Admin SDK v12+ (including breaking changes from v10)
• Familiarity with webhook-driven architectures (Stripe, Twilio webhooks)
• CORS configuration and cross-origin security aligned with Google Cloud IAM permissions
• Experience with Mailjet or similar email services
• Your skillset — Frontend (supporting role):
• SvelteKit v2
• Svelte 5 (runes such as $state, $derived, $effect)
• TypeScript
• Tailwind CSS
• Responsive design

Tech Stack

• Cloud
• Firebase
• Google Cloud Platform
• JavaScript
• Node.js
• Svelte
• TypeScript

Benefits

• Work in an experienced team that has already built successful platforms
• Involvement in all stages of company development
• Significant scope for creativity and personal responsibility
• Flexible working hours and a dynamic, appreciative work environment
• Access to an inspiring network of interesting professionals