diff --git a/Node/quickstarts/uppercase-firestore/firebase.json b/Node/quickstarts/uppercase-firestore/firebase.json
index ebdda5c7c6..bcf934355e 100644
--- a/Node/quickstarts/uppercase-firestore/firebase.json
+++ b/Node/quickstarts/uppercase-firestore/firebase.json
@@ -1,6 +1,9 @@
 {
   "functions": {
-    "codebase": "uppercase-firestore"
+    "codebase": "uppercase-firestore",
+    "predeploy": [
+      "npm --prefix \"$RESOURCE_DIR\" run compile"
+    ]
   },
   "firestore": {
     "rules": "firestore.rules",
diff --git a/Node/quickstarts/uppercase-firestore/functions/index.js b/Node/quickstarts/uppercase-firestore/functions/index.ts
similarity index 56%
rename from Node/quickstarts/uppercase-firestore/functions/index.js
rename to Node/quickstarts/uppercase-firestore/functions/index.ts
index 6342af285b..1b0dc2e37c 100644
--- a/Node/quickstarts/uppercase-firestore/functions/index.js
+++ b/Node/quickstarts/uppercase-firestore/functions/index.ts
@@ -13,18 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-"use strict";
-
 // [START all]
 // [START import]
 // The Cloud Functions for Firebase SDK to create Cloud Functions and triggers.
-const {logger} = require("firebase-functions");
-const {onRequest} = require("firebase-functions/v2/https");
-const {onDocumentCreated} = require("firebase-functions/v2/firestore");
+import { logger } from "firebase-functions";
+import { onRequest } from "firebase-functions/v2/https";
+import { onDocumentCreated } from "firebase-functions/v2/firestore";
 
 // The Firebase Admin SDK to access Firestore.
-const {initializeApp} = require("firebase-admin/app");
-const {getFirestore} = require("firebase-admin/firestore");
+import { initializeApp } from "firebase-admin/app";
+import { getFirestore } from "firebase-admin/firestore";
 
 initializeApp();
 // [END import]
@@ -33,17 +31,17 @@ initializeApp();
 // Take the text parameter passed to this HTTP endpoint and insert it into
 // Firestore under the path /messages/:documentId/original
 // [START addmessageTrigger]
-exports.addmessage = onRequest(async (req, res) => {
+export const addmessage = onRequest(async (req, res) => {
   // [END addmessageTrigger]
   // Grab the text parameter.
   const original = req.query.text;
   // [START adminSdkAdd]
   // Push the new message into Firestore using the Firebase Admin SDK.
   const writeResult = await getFirestore()
-      .collection("messages")
-      .add({original: original});
+    .collection("messages")
+    .add({ original: original });
   // Send back a message that we've successfully written the message
-  res.json({result: `Message with ID: ${writeResult.id} added.`});
+  res.json({ result: `Message with ID: ${writeResult.id} added.` });
   // [END adminSdkAdd]
 });
 // [END addmessage]
@@ -53,23 +51,26 @@ exports.addmessage = onRequest(async (req, res) => {
 // and saves an uppercased version of the message
 // to /messages/:documentId/uppercase
 // [START makeuppercaseTrigger]
-exports.makeuppercase = onDocumentCreated("/messages/{documentId}", (event) => {
-  // [END makeuppercaseTrigger]
-  // [START makeUppercaseBody]
-  // Grab the current value of what was written to Firestore.
-  const original = event.data.data().original;
+export const makeuppercase = onDocumentCreated(
+  "/messages/{documentId}",
+  (event) => {
+    // [END makeuppercaseTrigger]
+    // [START makeUppercaseBody]
+    // Grab the current value of what was written to Firestore.
+    const original = event.data.data().original;
 
-  // Access the parameter `{documentId}` with `event.params`
-  logger.log("Uppercasing", event.params.documentId, original);
+    // Access the parameter `{documentId}` with `event.params`
+    logger.log("Uppercasing", event.params.documentId, original);
 
-  const uppercase = original.toUpperCase();
+    const uppercase = original.toUpperCase();
 
-  // You must return a Promise when performing
-  // asynchronous tasks inside a function
-  // such as writing to Firestore.
-  // Setting an 'uppercase' field in Firestore document returns a Promise.
-  return event.data.ref.set({uppercase}, {merge: true});
-  // [END makeUppercaseBody]
-});
+    // You must return a Promise when performing
+    // asynchronous tasks inside a function
+    // such as writing to Firestore.
+    // Setting an 'uppercase' field in Firestore document returns a Promise.
+    return event.data.ref.set({ uppercase }, { merge: true });
+    // [END makeUppercaseBody]
+  },
+);
 // [END makeuppercase]
 // [END all]
diff --git a/Node/quickstarts/uppercase-firestore/functions/package.json b/Node/quickstarts/uppercase-firestore/functions/package.json
index acbb76848e..adc6e368c8 100644
--- a/Node/quickstarts/uppercase-firestore/functions/package.json
+++ b/Node/quickstarts/uppercase-firestore/functions/package.json
@@ -1,6 +1,8 @@
 {
   "name": "functions",
   "description": "Cloud Functions for Firebase",
+  "type": "module",
+  "main": "index.ts",
   "dependencies": {
     "firebase-admin": "^13.0.2",
     "firebase-functions": "^6.3.0"
@@ -8,19 +10,20 @@
   "devDependencies": {
     "chai": "^4.3.6",
     "chai-as-promised": "^7.1.1",
-    "eslint": "^8.57.1",
-    "eslint-config-google": "^0.14.0",
+    "firebase-functions-test": "^3.0.0",
     "mocha": "^7.2.0",
-    "sinon": "^9.2.4"
+    "prettier": "^3.6.2",
+    "sinon": "^9.2.4",
+    "typescript": "^5.0.0"
   },
   "scripts": {
-    "lint": "./node_modules/.bin/eslint --max-warnings=0 .",
     "serve": "firebase emulators:start --only functions",
     "shell": "firebase functions:shell",
     "start": "npm run shell",
     "deploy": "firebase deploy --only functions",
     "logs": "firebase functions:log",
-    "compile": "cp ../../../../tsconfig.template.json ./tsconfig-compile.json && tsc --project tsconfig-compile.json"
+    "compile": "tsc",
+    "format": "prettier --write '**/*.ts'"
   },
   "engines": {
     "node": "22"
diff --git a/Node/quickstarts/uppercase-firestore/functions/tsconfig.json b/Node/quickstarts/uppercase-firestore/functions/tsconfig.json
new file mode 100644
index 0000000000..acebcda89b
--- /dev/null
+++ b/Node/quickstarts/uppercase-firestore/functions/tsconfig.json
@@ -0,0 +1,15 @@
+{
+  "compilerOptions": {
+    "module": "esnext",
+    "target": "esnext",
+    "moduleResolution": "node",
+    "strict": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "forceConsistentCasingInFileNames": true,
+    "noEmit": true
+  },
+  "include": [
+    "index.ts"
+  ]
+}