diff --git a/conformance-test/libraryMethods.ts b/conformance-test/libraryMethods.ts
index 99d201042..6dfa7e284 100644
--- a/conformance-test/libraryMethods.ts
+++ b/conformance-test/libraryMethods.ts
@@ -183,7 +183,10 @@ export async function bucketUploadResumable(bucket: Bucket) {
     bucket.instancePreconditionOpts.ifGenerationMatch = 0;
   }
   await bucket.upload(
-    path.join(__dirname, 'test-data', 'retryStrategyTestData.json'),
+    path.join(
+      __dirname,
+      '../../conformance-test/test-data/retryStrategyTestData.json'
+    ),
     {resumable: true}
   );
 }
@@ -194,7 +197,10 @@ export async function bucketUploadMultipart(bucket: Bucket) {
     bucket.instancePreconditionOpts.ifGenerationMatch = 0;
   }
   await bucket.upload(
-    path.join(__dirname, 'test-data', 'retryStrategyTestData.json'),
+    path.join(
+      __dirname,
+      '../../conformance-test/test-data/retryStrategyTestData.json'
+    ),
     {resumable: false}
   );
 }
diff --git a/conformance-test/v4SignedUrl.ts b/conformance-test/v4SignedUrl.ts
index fc9384985..2bc20d1c8 100644
--- a/conformance-test/v4SignedUrl.ts
+++ b/conformance-test/v4SignedUrl.ts
@@ -88,7 +88,7 @@ interface BucketAction {
 }
 
 const testFile = fs.readFileSync(
-  path.join(__dirname, 'test-data', 'v4SignedUrl.json'),
+  path.join(__dirname, '../../conformance-test/test-data/v4SignedUrl.json'),
   'utf-8'
 );
 
@@ -100,8 +100,7 @@ const v4SignedPolicyCases: V4SignedPolicyTestCase[] =
 
 const SERVICE_ACCOUNT = path.join(
   __dirname,
-  'fixtures',
-  'signing-service-account.json'
+  '../../conformance-test/fixtures/signing-service-account.json'
 );
 
 const storage = new Storage({keyFilename: SERVICE_ACCOUNT});
diff --git a/package.json b/package.json
index 0855e7b70..d92ec6773 100644
--- a/package.json
+++ b/package.json
@@ -26,16 +26,15 @@
     "google storage",
     "storage"
   ],
-  "mocha": {
-    "require": "ts-node/register",
-    "extension": "ts"
-  },
   "scripts": {
     "predocs": "npm run compile",
     "docs": "jsdoc -c .jsdoc.js",
-    "system-test": "mocha system-test --timeout 600000 --exit",
-    "conformance-test": "mocha --parallel --require ts-node/register --require conformance-test/globalHooks.ts conformance-test/",
-    "test": "c8 mocha test",
+    "system-test": "mocha build/system-test --timeout 600000 --exit",
+    "conformance-test": "mocha --parallel build/conformance-test/ --require build/conformance-test/globalHooks.js",
+    "preconformance-test": "npm run compile",
+    "presystem-test": "npm run compile",
+    "test": "c8 mocha build/test",
+    "pretest": "npm run compile",
     "lint": "gts check",
     "samples-test": "npm link && cd samples/ && npm link ../ && npm test && cd ../",
     "all-test": "npm test && npm run system-test && npm run samples-test",
@@ -111,7 +110,6 @@
     "proxyquire": "^2.1.3",
     "sinon": "^14.0.0",
     "tmp": "^0.2.0",
-    "ts-node": "^10.7.0",
     "typescript": "~3.9.10",
     "uuid": "^8.0.0",
     "yargs": "^16.0.0"
diff --git a/src/gcs-resumable-upload.ts b/src/gcs-resumable-upload.ts
index d64d6f522..8d5bd18bb 100644
--- a/src/gcs-resumable-upload.ts
+++ b/src/gcs-resumable-upload.ts
@@ -28,13 +28,12 @@ import {Readable, Writable} from 'stream';
 import retry = require('async-retry');
 import {RetryOptions, PreconditionOptions} from './storage';
 import * as uuid from 'uuid';
-import {getPackageJSON} from './util';
 
 const NOT_FOUND_STATUS_CODE = 404;
 const TERMINATED_UPLOAD_STATUS_CODE = 410;
 const RESUMABLE_INCOMPLETE_STATUS_CODE = 308;
 const DEFAULT_API_ENDPOINT_REGEX = /.*\.googleapis\.com/;
-const packageJson = getPackageJSON();
+const packageJson = require('../../package.json');
 
 export const PROTOCOL_REGEX = /^(\w*):\/\//;
 
diff --git a/src/nodejs-common/util.ts b/src/nodejs-common/util.ts
index b1fd1e206..3008f187b 100644
--- a/src/nodejs-common/util.ts
+++ b/src/nodejs-common/util.ts
@@ -29,8 +29,7 @@ import {Duplex, DuplexOptions, Readable, Transform, Writable} from 'stream';
 import {teenyRequest} from 'teeny-request';
 import {Interceptor} from './service-object';
 import * as uuid from 'uuid';
-import {getPackageJSON} from '../util';
-const packageJson = getPackageJSON();
+const packageJson = require('../../../package.json');
 
 // eslint-disable-next-line @typescript-eslint/no-var-requires
 const duplexify: DuplexifyConstructor = require('duplexify');
diff --git a/src/storage.ts b/src/storage.ts
index 3d815bf0f..2298544b6 100644
--- a/src/storage.ts
+++ b/src/storage.ts
@@ -21,7 +21,7 @@ import {Readable} from 'stream';
 import {Bucket} from './bucket';
 import {Channel} from './channel';
 import {File} from './file';
-import {getPackageJSON, normalize} from './util';
+import {normalize} from './util';
 import {HmacKey, HmacKeyMetadata, HmacKeyOptions} from './hmacKey';
 
 export interface GetServiceAccountOptions {
@@ -614,8 +614,6 @@ export class Storage extends Service {
       maxRetryValue = options.retryOptions.maxRetries;
     }
 
-    const packageJson = getPackageJSON();
-
     const config = {
       apiEndpoint: options.apiEndpoint!,
       retryOptions: {
@@ -647,7 +645,7 @@ export class Storage extends Service {
         'https://www.googleapis.com/auth/cloud-platform',
         'https://www.googleapis.com/auth/devstorage.full_control',
       ],
-      packageJson,
+      packageJson: require('../../package.json'),
     };
 
     super(config, options);
diff --git a/src/util.ts b/src/util.ts
index ffe9a4323..89ba6a2d5 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -166,27 +166,3 @@ export function formatAsUTCISO(
 
   return resultString;
 }
-
-/**
- * Attempts to retrieve package.json from either the typescript or build context.
- * @returns {object} object representation of package.json
- */
-export function getPackageJSON(): ReturnType<JSON['parse']> {
-  let packageJson: ReturnType<JSON['parse']> = undefined;
-  const possiblePaths = ['../../package.json', '../package.json'];
-
-  for (const path of possiblePaths) {
-    try {
-      packageJson = require(path);
-      break;
-    } catch {
-      packageJson = undefined;
-    }
-  }
-
-  if (packageJson) {
-    return packageJson;
-  }
-
-  throw new Error('Unable to find package.json');
-}
diff --git a/system-test/storage.ts b/system-test/storage.ts
index 6d64a78a5..19bb9a489 100644
--- a/system-test/storage.ts
+++ b/system-test/storage.ts
@@ -58,7 +58,6 @@ describe('storage', () => {
   const USER_ACCOUNT = 'user-spsawchuk@gmail.com';
   const TESTS_PREFIX = `storage-tests-${shortUUID()}-`;
   const RETENTION_DURATION_SECONDS = 10;
-  const DATA_ROOT = path.join(__dirname, 'data');
 
   const storage = new Storage({
     retryOptions: {idempotencyStrategy: IdempotencyStrategy.RetryAlways},
@@ -73,14 +72,17 @@ describe('storage', () => {
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   const FILES: {[index: string]: any} = {
     logo: {
-      path: path.join(DATA_ROOT, 'CloudPlatform_128px_Retina.png'),
+      path: path.join(
+        __dirname,
+        '../../system-test/data/CloudPlatform_128px_Retina.png'
+      ),
     },
     big: {
-      path: path.join(DATA_ROOT, 'three-mb-file.tif'),
+      path: path.join(__dirname, '../../system-test/data/three-mb-file.tif'),
       hash: undefined,
     },
     html: {
-      path: path.join(DATA_ROOT, 'long-html-file.html'),
+      path: path.join(__dirname, '../../system-test/data/long-html-file.html'),
     },
   };
 
diff --git a/test/acl.ts b/test/acl.ts
index 5cdb79234..9339b6377 100644
--- a/test/acl.ts
+++ b/test/acl.ts
@@ -43,7 +43,7 @@ describe('storage/acl', () => {
   const ENTITY = 'user-user@example.com';
 
   before(() => {
-    const aclModule = proxyquire('../src/acl.ts', {
+    const aclModule = proxyquire('../src/acl.js', {
       '@google-cloud/promisify': fakePromisify,
     });
     Acl = aclModule.Acl;
diff --git a/test/bucket.ts b/test/bucket.ts
index eae482be6..1129b2d33 100644
--- a/test/bucket.ts
+++ b/test/bucket.ts
@@ -201,7 +201,7 @@ describe('Bucket', () => {
   const BUCKET_NAME = 'test-bucket';
 
   before(() => {
-    Bucket = proxyquire('../src/bucket.ts', {
+    Bucket = proxyquire('../src/bucket.js', {
       fs: fakeFs,
       'p-limit': fakePLimit,
       '@google-cloud/promisify': fakePromisify,
@@ -210,11 +210,11 @@ describe('Bucket', () => {
         ServiceObject: FakeServiceObject,
         util: fakeUtil,
       },
-      './acl.ts': {Acl: FakeAcl},
-      './file.ts': {File: FakeFile},
-      './iam.ts': {Iam: FakeIam},
-      './notification.ts': {Notification: FakeNotification},
-      './signer.ts': fakeSigner,
+      './acl.js': {Acl: FakeAcl},
+      './file.js': {File: FakeFile},
+      './iam.js': {Iam: FakeIam},
+      './notification.js': {Notification: FakeNotification},
+      './signer.js': fakeSigner,
     }).Bucket;
   });
 
@@ -2607,7 +2607,7 @@ describe('Bucket', () => {
 
   describe('upload', () => {
     const basename = 'testfile.json';
-    const filepath = path.join(__dirname, 'testdata', basename);
+    const filepath = path.join(__dirname, '../../test/testdata/' + basename);
     const metadata = {
       metadata: {
         a: 'b',
diff --git a/test/channel.ts b/test/channel.ts
index 701187fdb..e14d4ed1f 100644
--- a/test/channel.ts
+++ b/test/channel.ts
@@ -54,7 +54,7 @@ describe('Channel', () => {
   let channel: any;
 
   before(() => {
-    Channel = proxyquire('../src/channel.ts', {
+    Channel = proxyquire('../src/channel.js', {
       '@google-cloud/promisify': fakePromisify,
       './nodejs-common': {
         ServiceObject: FakeServiceObject,
diff --git a/test/file.ts b/test/file.ts
index 2e8ddda63..01e935604 100644
--- a/test/file.ts
+++ b/test/file.ts
@@ -205,7 +205,7 @@ describe('File', () => {
   let BUCKET: any;
 
   before(() => {
-    File = proxyquire('../src/file.ts', {
+    File = proxyquire('../src/file.js', {
       './nodejs-common': {
         ServiceObject: FakeServiceObject,
         util: fakeUtil,
diff --git a/test/gcs-resumable-upload.ts b/test/gcs-resumable-upload.ts
index f28222d77..6369d30ea 100644
--- a/test/gcs-resumable-upload.ts
+++ b/test/gcs-resumable-upload.ts
@@ -107,7 +107,7 @@ describe('gcs-resumable-upload', () => {
     retryableErrorFn: RETRYABLE_ERR_FN_DEFAULT,
   };
   let REQ_OPTS: GaxiosOptions;
-  const keyFile = path.join(__dirname, 'fixtures', 'keys.json');
+  const keyFile = path.join(__dirname, '../../test/fixtures/keys.json');
 
   before(() => {
     mockery.registerMock('abort-controller', {default: AbortController});
diff --git a/test/iam.ts b/test/iam.ts
index 2e3cd11c4..6d4c693be 100644
--- a/test/iam.ts
+++ b/test/iam.ts
@@ -37,7 +37,7 @@ describe('storage/iam', () => {
   };
 
   before(() => {
-    Iam = proxyquire('../src/iam.ts', {
+    Iam = proxyquire('../src/iam.js', {
       '@google-cloud/promisify': fakePromisify,
     }).Iam;
   });
diff --git a/test/index.ts b/test/index.ts
index 3ae0a6d08..782fb9e61 100644
--- a/test/index.ts
+++ b/test/index.ts
@@ -103,7 +103,7 @@ describe('Storage', () => {
       './nodejs-common': {
         Service: FakeService,
       },
-      './channel.ts': {Channel: FakeChannel},
+      './channel.js': {Channel: FakeChannel},
       './hmacKey': hmacKeyModule,
     }).Storage;
     Bucket = Storage.Bucket;
@@ -145,7 +145,7 @@ describe('Storage', () => {
       assert.deepStrictEqual(
         calledWith.packageJson,
         // eslint-disable-next-line @typescript-eslint/no-var-requires
-        require('../package.json')
+        require('../../package.json')
       );
     });
 
diff --git a/test/notification.ts b/test/notification.ts
index b9812a969..e986f69db 100644
--- a/test/notification.ts
+++ b/test/notification.ts
@@ -56,7 +56,7 @@ describe('Notification', () => {
   const ID = '123';
 
   before(() => {
-    Notification = proxyquire('../src/notification.ts', {
+    Notification = proxyquire('../src/notification.js', {
       '@google-cloud/promisify': fakePromisify,
       './nodejs-common': {
         ServiceObject: FakeServiceObject,