Full-Stack Developer for AI SaaS Improvement -- 2

# Full-Stack Developer Needed for Existing AI SaaS — Inspection, Deployment & Improvements I recently acquired an existing AI SaaS application called **Proxelion** and I'm looking for a reliable full-stack developer who can help me understand, deploy and improve the product. I am a **non-technical founder**, so I need someone who can explain technical issues clearly and work with me long-term. Think of the first task like a **mechanic inspecting a car before purchase**. I don't want someone to immediately rebuild the application. I want someone to first inspect what is already there, test the important functionality, identify problems and tell me what actually needs to be fixed. ## Existing Technology The application is built with technologies including: * Next.js * React * TypeScript * Supabase/PostgreSQL * Vercel * AI APIs / Claude / OpenRouter * SMTP * IMAP * Hunter.io * Polar * Google OAuth * Chrome Extension / Manifest V3 The application is already deployed and has existing functionality. ## PHASE 1 — TECHNICAL INSPECTION I want you to review the existing application and codebase. Please check: * Overall architecture * Frontend * Backend/API * Database * Authentication * User data isolation * AI integrations * SMTP * IMAP reply detection * Automated follow-ups * Stop-follow-up-on-reply functionality * Gmail/OAuth implementation * Microsoft 365 compatibility * Background jobs/cron * Billing * Chrome extension * API integrations * Security basics * Deployment configuration * Third-party dependencies Please actually test the major workflows rather than only looking at the source code. For example: **Create user → find company → find contact → generate email → send → receive reply → detect reply → classify reply → stop follow-up** I want to know whether this actually works end-to-end. ### Chrome Extension The existing extension includes: * Gmail sidebar * AI email generation * Three email variations * Follow-up generation * Pitch templates * Usage/credit information * Insert generated email into Gmail * Proxelion authentication It is Manifest V3 and currently unpublished. Please inspect and test it as well. ## DELIVERABLE I want a short report in plain English explaining: ### Critical Things that should be fixed. ### Important Things that should be addressed soon. ### Improvements Things that can be improved later. ### Working Things that are already functioning properly. For each major issue, please give me: * What is wrong * Why it matters * How you would fix it * Estimated hours I don't need a huge academic report. I need a practical founder-friendly assessment. --- # PHASE 2 — DEPLOYMENT After the inspection, I want help moving the application into **my own accounts/infrastructure**. This may include: * GitHub * Vercel * Supabase * Google Cloud * AI/API accounts * Domain * Email * Other required services The goal is that after handover, I control the product and don't depend on the previous owner. You will help configure the application and verify that it works after deployment. # IMPORTANT **The first milestone is ONLY the technical inspection.** I do not want the developer to make changes to the existing production application during the inspection. Initial access will be provided appropriately for review/testing. If the developer is a good fit, there will be additional paid work for deployment, fixes and new features. I am looking for a long-term developer rather than someone who wants to rewrite everything. --- # IDEAL DEVELOPER Experience with several of the following: * Next.js * React * TypeScript * Node.js * Supabase * PostgreSQL * SaaS applications * REST APIs * Vercel * AI APIs * SMTP * IMAP * OAuth * Chrome Extensions * Google APIs * Microsoft 365 * Production deployment You don't need to be an AI researcher. Strong full-stack SaaS experience is more important. --- # PLEASE ANSWER 1. Have you worked on an existing SaaS application that you took over from another developer? 2. How would you inspect an existing SaaS before taking ownership? 3. Have you worked with Next.js + Supabase? 4. Have you worked with Gmail/OAuth? 5. Have you worked with SMTP/IMAP? 6. Have you built Chrome extensions? 7. Have you deployed applications to Vercel/Supabase? 8. Can you explain technical issues to a non-technical founder? 9. What would you charge for the initial technical inspection? 10. What is your hourly rate for future development? 11. Please provide examples of relevant projects. ## Budget Please provide your fixed price and estimated hours for the inspection. Quality and communication are more important than simply being the lowest bidder.