diff --git a/.github/workflows/deploy_functions_prod.yml b/.github/workflows/deploy_functions_prod.yml
new file mode 100644
index 0000000..9986960
--- /dev/null
+++ b/.github/workflows/deploy_functions_prod.yml
@@ -0,0 +1,78 @@
+name: Deploy firebase functions to PROD
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - "backend/**"
+      - ".github/workflows/deploy_functions_prod.yml"
+  workflow_dispatch:
+
+jobs:
+  build_and_deploy:
+    runs-on: ubuntu-latest
+    steps:
+      # Step 1: Checkout the code
+      - uses: actions/checkout@v3
+
+      # Step 1.5:  Environment variables
+      - name: create env file
+        working-directory: backend
+        run: |
+          cd functions
+          touch .env
+          echo "${{ secrets.FUNCTIONS_ENV_VARS_PROD }}" >> .env
+
+      # Step 2: Set up Python environment
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+
+      # Step 3: Set up Node.js environment
+      - name: Set up Node
+        uses: actions/setup-node@v3
+        with:
+          node-version: 19.7.0
+
+      # Step 3.5: Download the ZIP file from Google Drive
+      - name: Download Models ZIP
+        run: |
+          wget "${{ secrets.LINK_TO_MODEL_FILES_PROD }}" -O models.zip
+
+      - name: List Directory Contents
+        run: ls -lh models.zip
+      - name: Check File Type
+        run: file models.zip
+
+      # Step 3.5.2: Extract the ZIP file
+      - name: Extract Models ZIP
+        run: |
+          unzip models.zip -d backend/functions/ml_logic
+
+      # Step 3.5.3: Clean up
+      - name: Clean Up
+        run: rm models.zip
+
+      # Step 4: Create Service Account Key and Set Env Variables
+      - name: Create SA key and set env variables
+        run: |
+          echo '${{ secrets.FIREBASE_SERVICE_ACCOUNT_SCHEMESSG_V3_PROD }}' > ${{ runner.temp }}/gcloud.json
+          echo "GOOGLE_APPLICATION_CREDENTIALS=${{ runner.temp }}/gcloud.json" >> $GITHUB_ENV
+
+      # Step 5: Prepare the environment
+      - name: Prepare the environment
+        working-directory: backend/functions
+        run: |
+          python3.10 -m venv venv
+          . venv/bin/activate
+          npx firebase-tools --version
+          python3.10 -m pip install -r requirements.txt
+
+      # Step 6: deploy functions
+      - name: Deploy functions
+        working-directory: backend
+        env:
+          GOOGLE_APPLICATION_CREDENTIALS: ${{ runner.temp }}/gcloud.json
+        run: npx firebase-tools deploy --only functions --debug --token "${{ secrets.FIREBASE_TOKEN_SCHEMESSG_V3_PROD }}"