Score WhatsApp PDF resumes with OpenAI GPT-4o-mini and Supabase

WhatsApp Resume Ranking Bot — AI-Powered Career Score via PDF Upload

Let job seekers check their resume strength directly on WhatsApp — no app, no sign-up, no friction. Users send a keyword, answer 2 quick questions, upload their PDF resume, and receive a personalized career score, ATS feedback, and rejection analysis in under 60 seconds.

Who is this for?

Career coaches, job portals, HR-tech startups, or recruitment agencies who want to offer a self-serve resume evaluation tool directly inside WhatsApp — where their audience already is.

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What this workflow does

1. Listens for incoming WhatsApp messages via the WhatsApp Business Cloud API 2. Manages multi-turn conversation state in Supabase — tracks each user's progress through the flow (idle → name → role → resume → processing) 3. Guides the user step-by-step to provide their name, target job role, and PDF resume 4. Downloads the resume PDF from WhatsApp's media server using the Business API 5. Extracts resume text for analysis 6. Runs a Scoring Engine that calculates a career score (0–100) based on resume content and target role 7. Calls OpenAI (GPT-4o-mini) in parallel to generate rejection reasons and actionable improvement tips 8. Merges both results and formats a final WhatsApp message 9. Sends the personalized report back to the user — score, weaknesses, and what to fix

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