diff --git a/packages/test/test-service-load/package.json b/packages/test/test-service-load/package.json
index 3f19850c3308..9c8bba2bb763 100644
--- a/packages/test/test-service-load/package.json
+++ b/packages/test/test-service-load/package.json
@@ -11,16 +11,16 @@
 	"license": "MIT",
 	"author": "Microsoft and contributors",
 	"sideEffects": false,
-	"main": "dist/index.js",
-	"module": "lib/index.js",
-	"types": "dist/index.d.ts",
+	"type": "module",
 	"scripts": {
 		"build": "fluid-build . --task build",
 		"build:commonjs": "fluid-build . --task commonjs",
 		"build:compile": "fluid-build . --task compile",
-		"build:esnext": "tsc --project ./tsconfig.esnext.json",
+		"build:esnext": "tsc --project ./tsconfig.json",
 		"build:genver": "gen-version",
-		"build:test": "tsc --project ./src/test/tsconfig.json",
+		"build:test": "npm run build:test:esm && npm run build:test:cjs",
+		"build:test:cjs": "fluid-tsc commonjs --project ./src/test/tsconfig.cjs.json",
+		"build:test:esm": "tsc --project ./src/test/tsconfig.json",
 		"check:biome": "biome check .",
 		"check:prettier": "prettier --check . --cache --ignore-path ../../../.prettierignore",
 		"clean": "rimraf --glob dist lib \"**/*.tsbuildinfo\" \"**/*.build.log\" nyc",
@@ -51,7 +51,7 @@
 		"test:stress:tinylicious": "cross-env fluid__test__driver=t9s start-server-and-test start:tinylicious:test 7070 test:stress:tinylicious:run",
 		"test:stress:tinylicious:report": "npm run test:stress:tinylicious",
 		"test:stress:tinylicious:run": "npm run test:stress:run",
-		"tsc": "tsc",
+		"tsc": "fluid-tsc commonjs --project ./tsconfig.cjs.json && copyfiles -f ../../../common/build/build-common/src/cjs/package.json ./dist",
 		"typetests:gen": "fluid-type-test-generator",
 		"typetests:prepare": "flub typetests --dir . --reset --previous --normalize",
 		"usePrereleaseDeps": "node ./scripts/usePrereleaseDeps.js"
@@ -115,6 +115,7 @@
 		"@types/mocha": "^9.1.1",
 		"@types/node": "^18.19.0",
 		"c8": "^8.0.1",
+		"copyfiles": "^2.4.1",
 		"cross-env": "^7.0.3",
 		"eslint": "~8.55.0",
 		"mocha": "^10.2.0",
diff --git a/packages/test/test-service-load/src/loadTestDataStore.ts b/packages/test/test-service-load/src/loadTestDataStore.ts
index 76ce486870a4..d11fb30be132 100644
--- a/packages/test/test-service-load/src/loadTestDataStore.ts
+++ b/packages/test/test-service-load/src/loadTestDataStore.ts
@@ -25,7 +25,7 @@ import { ISequencedDocumentMessage } from "@fluidframework/protocol-definitions"
 import { IContainerRuntimeBase } from "@fluidframework/runtime-definitions";
 import { ITaskManager, TaskManager } from "@fluidframework/task-manager";
 import { ITelemetryLoggerExt } from "@fluidframework/telemetry-utils";
-import { ILoadTestConfig } from "./testConfigFile";
+import { ILoadTestConfig } from "./testConfigFile.js";
 
 export interface IRunConfig {
 	runId: number;
diff --git a/packages/test/test-service-load/src/nodeStressTest.ts b/packages/test/test-service-load/src/nodeStressTest.ts
index 0565e0ca5134..10737827cfa1 100644
--- a/packages/test/test-service-load/src/nodeStressTest.ts
+++ b/packages/test/test-service-load/src/nodeStressTest.ts
@@ -13,8 +13,8 @@ import {
 } from "@fluidframework/test-driver-definitions";
 import commander from "commander";
 import ps from "ps-node";
-import { ILoadTestConfig } from "./testConfigFile";
-import { createLogger, createTestDriver, getProfile, initialize, safeExit } from "./utils";
+import { ILoadTestConfig } from "./testConfigFile.js";
+import { createLogger, createTestDriver, getProfile, initialize, safeExit } from "./utils.js";
 
 interface ITestUserConfig {
 	/* Credentials' key/value description:
diff --git a/packages/test/test-service-load/src/optionsMatrix.ts b/packages/test/test-service-load/src/optionsMatrix.ts
index 8f6802142d5e..3337c2c31191 100644
--- a/packages/test/test-service-load/src/optionsMatrix.ts
+++ b/packages/test/test-service-load/src/optionsMatrix.ts
@@ -19,7 +19,7 @@ import {
 import { ConfigTypes } from "@fluidframework/core-interfaces";
 import { LoggingError } from "@fluidframework/telemetry-utils";
 import { TestDriverTypes } from "@fluidframework/test-driver-definitions";
-import { ILoadTestConfig, OptionOverride } from "./testConfigFile";
+import { ILoadTestConfig, OptionOverride } from "./testConfigFile.js";
 
 const loaderOptionsMatrix: OptionsMatrix<ILoaderOptions> = {
 	cache: booleanCases,
diff --git a/packages/test/test-service-load/src/runner.ts b/packages/test/test-service-load/src/runner.ts
index e0eb7166b5ca..8e2185eba702 100644
--- a/packages/test/test-service-load/src/runner.ts
+++ b/packages/test/test-service-load/src/runner.ts
@@ -19,14 +19,14 @@ import {
 	TestDriverTypes,
 } from "@fluidframework/test-driver-definitions";
 import commander from "commander";
-import { FaultInjectionDocumentServiceFactory } from "./faultInjectionDriver";
-import { ILoadTest, IRunConfig } from "./loadTestDataStore";
+import { FaultInjectionDocumentServiceFactory } from "./faultInjectionDriver.js";
+import { ILoadTest, IRunConfig } from "./loadTestDataStore.js";
 import {
 	generateConfigurations,
 	generateLoaderOptions,
 	generateRuntimeOptions,
 	getOptionOverride,
-} from "./optionsMatrix";
+} from "./optionsMatrix.js";
 import {
 	configProvider,
 	createCodeLoader,
@@ -35,7 +35,7 @@ import {
 	getProfile,
 	globalConfigurations,
 	safeExit,
-} from "./utils";
+} from "./utils.js";
 
 function printStatus(runConfig: IRunConfig, message: string) {
 	if (runConfig.verbose) {
diff --git a/packages/test/test-service-load/src/test/tsconfig.cjs.json b/packages/test/test-service-load/src/test/tsconfig.cjs.json
new file mode 100644
index 000000000000..f966e4a2484f
--- /dev/null
+++ b/packages/test/test-service-load/src/test/tsconfig.cjs.json
@@ -0,0 +1,12 @@
+{
+	// This config must be used in a "type": "commonjs" environment. (Use fluid-tsc commonjs.)
+	"extends": "./tsconfig.json",
+	"compilerOptions": {
+		"outDir": "../../dist/test",
+	},
+	"references": [
+		{
+			"path": "../../tsconfig.cjs.json",
+		},
+	],
+}
diff --git a/packages/test/test-service-load/src/test/tsconfig.json b/packages/test/test-service-load/src/test/tsconfig.json
index b58e17f1917f..77c14e7f1f56 100644
--- a/packages/test/test-service-load/src/test/tsconfig.json
+++ b/packages/test/test-service-load/src/test/tsconfig.json
@@ -1,11 +1,9 @@
 {
-	"extends": "@fluidframework/build-common/ts-common-config.json",
+	"extends": "../../../../../common/build/build-common/tsconfig.test.node16.json",
 	"compilerOptions": {
 		"rootDir": "./",
-		"outDir": "../../dist/test",
-		"types": ["node", "mocha"],
-		"declaration": false,
-		"declarationMap": false,
+		"outDir": "../../lib/test",
+		"types": ["mocha", "node"],
 	},
 	"include": ["./**/*"],
 	"references": [
diff --git a/packages/test/test-service-load/src/utils.ts b/packages/test/test-service-load/src/utils.ts
index 6fd636b1d0ae..b808a01eee89 100644
--- a/packages/test/test-service-load/src/utils.ts
+++ b/packages/test/test-service-load/src/utils.ts
@@ -30,15 +30,15 @@ import {
 	TestDriverTypes,
 } from "@fluidframework/test-driver-definitions";
 import { LocalCodeLoader } from "@fluidframework/test-utils";
-import { ILoadTest, createFluidExport } from "./loadTestDataStore";
+import { ILoadTest, createFluidExport } from "./loadTestDataStore.js";
 import {
 	generateConfigurations,
 	generateLoaderOptions,
 	generateRuntimeOptions,
 	getOptionOverride,
-} from "./optionsMatrix";
-import { pkgName, pkgVersion } from "./packageVersion";
-import { ILoadTestConfig, ITestConfig } from "./testConfigFile";
+} from "./optionsMatrix.js";
+import { pkgName, pkgVersion } from "./packageVersion.js";
+import { ILoadTestConfig, ITestConfig } from "./testConfigFile.js";
 
 const packageName = `${pkgName}@${pkgVersion}`;
 
diff --git a/packages/test/test-service-load/tsconfig.cjs.json b/packages/test/test-service-load/tsconfig.cjs.json
new file mode 100644
index 000000000000..773d0806da58
--- /dev/null
+++ b/packages/test/test-service-load/tsconfig.cjs.json
@@ -0,0 +1,7 @@
+{
+	// This config must be used in a "type": "commonjs" environment. (Use fluid-tsc commonjs.)
+	"extends": "./tsconfig.json",
+	"compilerOptions": {
+		"outDir": "./dist",
+	},
+}
diff --git a/packages/test/test-service-load/tsconfig.json b/packages/test/test-service-load/tsconfig.json
index 6c1e0eade983..4085f38ef765 100644
--- a/packages/test/test-service-load/tsconfig.json
+++ b/packages/test/test-service-load/tsconfig.json
@@ -1,11 +1,10 @@
 {
-	"extends": "@fluidframework/build-common/ts-common-config.json",
+	"extends": "../../../common/build/build-common/tsconfig.node16.json",
 	"exclude": ["src/test/**/*"],
 	"include": ["src/**/*"],
 	"compilerOptions": {
 		"rootDir": "./src",
-		"outDir": "./dist",
+		"outDir": "./lib",
 		"types": ["node"],
-		"composite": true,
 	},
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index f9187fd79d0f..dd27cebd5e3b 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -10141,6 +10141,7 @@ importers:
       '@types/node': ^18.19.0
       c8: ^8.0.1
       commander: ^5.1.0
+      copyfiles: ^2.4.1
       cross-env: ^7.0.3
       eslint: ~8.55.0
       mocha: ^10.2.0
@@ -10188,6 +10189,7 @@ importers:
       '@types/mocha': 9.1.1
       '@types/node': 18.19.1
       c8: 8.0.1
+      copyfiles: 2.4.1
       cross-env: 7.0.3
       eslint: 8.55.0
       mocha: 10.2.0