diff --git a/.github/workflows/deploy_functions.yml b/.github/workflows/deploy_functions.yml
new file mode 100644
index 0000000..a85c0b7
--- /dev/null
+++ b/.github/workflows/deploy_functions.yml
@@ -0,0 +1,59 @@
+name: Deploy to Firebase Functions
+
+on:
+  push:
+    branches:
+      - stg
+  workflow_dispatch:
+
+env:
+  FIREBASE_PROJECT_ID: "schemessg-v3-dev"
+  SERVICE_ACCOUNT_KEY: ${{ secrets.FIREBASE_SERVICE_ACCOUNT_SCHEMESSG_V3_DEV }}
+
+jobs:
+  deploy:
+    name: Deploy Functions
+    runs-on: ubuntu-latest
+
+    steps:
+    # Step 1: Checkout the code
+    - name: Checkout Repository
+      uses: actions/checkout@v3
+
+    # Step 2: Set up Node.js environment
+    - name: Setup Node.js
+      uses: actions/setup-node@v3
+      with:
+        node-version: 18
+
+    # Step 3: Set up Python environment (since your backend relies on Python as well)
+    - name: Setup Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: 3.10
+
+    # Step 4: Install Dependencies
+    - name: Install Dependencies
+      run: |
+        npm install -g firebase-tools@13.25.0
+        cd functions
+        python -m venv venv
+        source venv/bin/activate
+        pip install --no-cache-dir -r requirements.txt
+
+    # Step 5: Authenticate Firebase CLI
+    - name: Authenticate Firebase CLI
+      env:
+        FIREBASE_TOKEN: ${{ secrets.FIREBASE_TOKEN_SCHEMES_V3_DEV }}
+      run: |
+        echo "$SERVICE_ACCOUNT_KEY" > ${HOME}/serviceAccountKey.json
+        firebase auth:login:ci --project $FIREBASE_PROJECT_ID --token $FIREBASE_TOKEN
+        firebase use --add $FIREBASE_PROJECT_ID --token $FIREBASE_TOKEN
+
+    # Step 6: Deploy All Functions
+    - name: Deploy Firebase Functions
+      run: |
+        firebase deploy --only functions --project $FIREBASE_PROJECT_ID
+      env:
+        FIREBASE_TOKEN: ${{ secrets.FIREBASE_TOKEN }}
+        GOOGLE_APPLICATION_CREDENTIALS: ${HOME}/serviceAccountKey.json