diff --git a/backend/.eslintrc.json b/backend/.eslintrc.json
new file mode 100644
index 00000000..1a8461be
--- /dev/null
+++ b/backend/.eslintrc.json
@@ -0,0 +1,63 @@
+{
+  "plugins": [
+    "@typescript-eslint",
+    "unicorn",
+    "jsdoc",
+    "import",
+    "promise",
+    "sonarjs"
+  ],
+  "extends": [
+    "eslint:recommended",
+    "plugin:n/recommended",
+    "plugin:@typescript-eslint/recommended",
+    "plugin:unicorn/recommended",
+    "plugin:jsdoc/recommended",
+    "plugin:import/recommended",
+    "plugin:promise/recommended",
+    "plugin:sonarjs/recommended",
+    "plugin:security/recommended"
+  ],
+  "root": true,
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": {
+    "project": "./tsconfig.json",
+    "ecmaVersion": "latest",
+    "sourceType": "module"
+  },
+  "rules": {
+    "@typescript-eslint/no-unused-vars": [
+      "error",
+      {
+        "argsIgnorePattern": "^_",
+        "varsIgnorePattern": "^_",
+        "ignoreRestSiblings": true
+      }
+    ],
+    "@typescript-eslint/no-misused-promises": [
+      "error",
+      {
+        "checksVoidReturn": false
+      }
+    ],
+    "@typescript-eslint/no-var-requires": "off",
+    "@typescript-eslint/ban-ts-comment": "off",
+    "jsdoc/require-jsdoc": ["warn", { "publicOnly": true }],
+    "jsdoc/require-description": "off",
+    "import/no-unresolved": "off",
+    "unicorn/no-empty-file": "off",
+    "unicorn/consistent-function-scoping": [
+      "error",
+      {
+        "checkArrowFunctions": false
+      }
+    ],
+    "unicorn/prefer-module": "off",
+    "unicorn/prevent-abbreviations": "off",
+    "unicorn/catch-error-name": "off",
+    "unicorn/prefer-ternary": "off",
+    "unicorn/prefer-event-target": "off",
+    "security/detect-object-injection": "off",
+    "security/detect-non-literal-fs-filename": "off"
+  }
+}
diff --git a/backend/app.js b/backend/app.js
index 037ba245..9e5d75cc 100644
--- a/backend/app.js
+++ b/backend/app.js
@@ -36,6 +36,7 @@ if (
   process.env.NODE_ENV === "production" &&
   process.env.ZU_SECURE_HEADERS !== "false"
 ) {
+  // @ts-ignore
   app.use(helmet());
 }
 
diff --git a/backend/global.d.ts b/backend/global.d.ts
new file mode 100644
index 00000000..fc1ca3a2
--- /dev/null
+++ b/backend/global.d.ts
@@ -0,0 +1 @@
+declare module "axios";
diff --git a/backend/jsconfig.json b/backend/jsconfig.json
deleted file mode 100644
index 011412e5..00000000
--- a/backend/jsconfig.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "exclude": ["node_modules", "**/node_modules/*"],
-  "typeAcquisition": {
-    "exclude": ["dotenv"]
-  }
-}
diff --git a/backend/package.json b/backend/package.json
index 448b4538..b2abce88 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -2,20 +2,36 @@
   "name": "backend",
   "private": true,
   "scripts": {
-    "start": "node ./bin/www"
+    "start": "node ./bin/www",
+    "lint": "eslint . --report-unused-disable-directives --max-warnings 0",
+    "typecheck": "tsc --pretty --noEmit -p tsconfig.json"
   },
   "dependencies": {
     "axios": "^0.27.2",
     "compression": "^1.7.4",
-    "debug": "~4.3.4",
-    "dotenv": "^16.0.1",
-    "express": "~4.18.1",
+    "debug": "^4.3.4",
+    "dotenv": "^16.3.1",
+    "express": "^4.18.2",
     "express-bearer-token": "^2.4.0",
     "helmet": "^5.1.1",
     "lodash": "^4.17.21",
     "lowdb": "^1.0.0",
-    "morgan": "~1.10.0",
+    "morgan": "^1.10.0",
     "node-cron": "^3.0.2",
     "pbkdf2-wrapper": "^1.3.4"
+  },
+  "devDependencies": {
+    "@types/express": "^4.17.18",
+    "@typescript-eslint/eslint-plugin": "^6.7.4",
+    "@typescript-eslint/parser": "^6.7.4",
+    "eslint": "^8.50.0",
+    "eslint-plugin-import": "^2.28.1",
+    "eslint-plugin-jsdoc": "^46.8.2",
+    "eslint-plugin-n": "^16.1.0",
+    "eslint-plugin-promise": "^6.1.1",
+    "eslint-plugin-security": "^1.7.1",
+    "eslint-plugin-sonarjs": "^0.21.0",
+    "eslint-plugin-unicorn": "^48.0.1",
+    "typescript": "^5.2.2"
   }
 }
diff --git a/backend/routes/member.js b/backend/routes/member.js
index 1ee33ed5..8c3c0120 100644
--- a/backend/routes/member.js
+++ b/backend/routes/member.js
@@ -8,6 +8,7 @@ const api = require("../utils/controller-api");
 
 // get all members
 router.get("/", auth.isAuthorized, async function (req, res) {
+  // @ts-ignore
   const nwid = req.params.nwid;
   api
     .get("controller/network/" + nwid + "/member")
@@ -23,6 +24,7 @@ router.get("/", auth.isAuthorized, async function (req, res) {
 
 // get member
 router.get("/:mid", auth.isAuthorized, async function (req, res) {
+  // @ts-ignore
   const nwid = req.params.nwid;
   const mid = req.params.mid;
   const data = await member.getMembersData(nwid, [mid]);
@@ -35,6 +37,7 @@ router.get("/:mid", auth.isAuthorized, async function (req, res) {
 
 // update member
 router.post("/:mid", auth.isAuthorized, async function (req, res) {
+  // @ts-ignore
   const nwid = req.params.nwid;
   const mid = req.params.mid;
   member.updateMemberAdditionalData(nwid, mid, req.body);
@@ -56,6 +59,7 @@ router.post("/:mid", auth.isAuthorized, async function (req, res) {
 
 // delete member
 router.delete("/:mid", auth.isAuthorized, async function (req, res) {
+  // @ts-ignore
   const nwid = req.params.nwid;
   const mid = req.params.mid;
   member.deleteMemberAdditionalData(nwid, mid);
diff --git a/backend/services/member.js b/backend/services/member.js
index fc919906..3f9f2d64 100644
--- a/backend/services/member.js
+++ b/backend/services/member.js
@@ -71,6 +71,7 @@ async function getMemberAdditionalData(data) {
     networkId: data.nwid,
     nodeId: data.id,
     controllerId: ZT_ADDRESS,
+    // @ts-ignore
     lastOnline: lastOnline,
     ...additionalData,
     ...peerData,
diff --git a/backend/tsconfig.json b/backend/tsconfig.json
new file mode 100644
index 00000000..beb0bca4
--- /dev/null
+++ b/backend/tsconfig.json
@@ -0,0 +1,18 @@
+{
+  "compilerOptions": {
+    "rootDir": ".",
+    "baseUrl": ".",
+    "allowJs": true,
+    "checkJs": true,
+    "noEmit": true,
+    "skipLibCheck": true,
+    "module": "CommonJS",
+    "moduleResolution": "Node",
+    "target": "ESNext",
+    "lib": ["ESNext", "dom"],
+    "strict": true,
+    "noImplicitAny": false,
+    "allowSyntheticDefaultImports": true
+  },
+  "include": ["."]
+}
diff --git a/backend/utils/zt-address.js b/backend/utils/zt-address.js
index c91b0523..07ba7835 100644
--- a/backend/utils/zt-address.js
+++ b/backend/utils/zt-address.js
@@ -6,6 +6,7 @@ module.exports = async function () {
     return res.data.address;
   } catch (err) {
     console.error(
+      // @ts-ignore
       "Couldn't connect to the controller on " + err.config.baseURL
     );
   }
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 00000000..7d2c9df2
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,14 @@
+{
+  "compilerOptions": {
+    "allowJs": true,
+    "checkJs": true,
+    "noEmit": true,
+    "skipLibCheck": true,
+    "target": "ESNext",
+    "lib": ["ESNext", "dom"],
+    "strict": true,
+    "noImplicitAny": false,
+    "allowSyntheticDefaultImports": true
+  },
+  "include": ["backend", "frontend"]
+}