Senior Full Stack Developer Needed – SaaS Platform Audit, Stripe Bug Fixes & Maintenance

**Senior Full Stack Developer – Existing SaaS Platform Audit, Bug Fixes & Maintenance** We are looking for an experienced Senior Full Stack Developer to help us audit, troubleshoot, improve, and maintain our existing SaaS platform, TODODJS. **About the project** TODODJS is an active subscription-based platform for DJs, with registered users, paying customers, and a large digital music library. Our platform is already developed and running in production. We are NOT looking to rebuild it from scratch. The codebase is hosted on GitHub, the website runs on Hostinger, and we use Stripe for subscription management and payments. **What we need** Our priority is to find a reliable developer who can: - Perform a technical audit of our existing codebase. - Identify and fix bugs affecting subscriptions and user access. - Review Stripe integrations, webhooks, recurring payments, failed payments, and cancellations. - Verify that download permissions correctly reflect subscription and payment status. - Review backend logic, database consistency, API errors, and security. - Improve platform stability and reliability. - Potentially provide ongoing maintenance and technical support. **How we would like to work** We would like to start with a read-only code audit and a clear technical report outlining the issues, their severity, recommended solutions, and estimated costs. Any subsequent code changes should be developed in separate GitHub branches, tested in a staging environment, and reviewed before deployment to production. **Ideal candidate** - Proven experience maintaining existing SaaS or subscription-based platforms. - Strong backend and full-stack development skills. - Demonstrable experience with Stripe Billing, webhooks, and subscription lifecycle management. - Experience with GitHub, debugging, API integrations, and database management. - Ability to understand and improve an existing codebase, including AI-assisted code. - Good communication and availability for ongoing collaboration. **When applying, please tell us:** 1. Have you previously worked with Stripe-based subscription platforms? 2. Can you share examples of SaaS platforms you have maintained or repaired? 3. How would you approach auditing an existing production platform without disrupting current customers? 4. What is your hourly rate or estimated cost for an initial technical audit? 5. Would you be available for a short introductory video call? We are looking for a trustworthy, experienced developer for a potential long-term collaboration. Thank you!