diff --git a/packages/kbn-optimizer/.babelrc b/packages/kbn-optimizer/.babelrc
new file mode 100644
index 000000000000..1685d1644d94
--- /dev/null
+++ b/packages/kbn-optimizer/.babelrc
@@ -0,0 +1,4 @@
+{
+  "presets": ["@kbn/babel-preset/node_preset"],
+  "ignore": ["**/*.test.js"]
+}
diff --git a/packages/kbn-optimizer/BUILD.bazel b/packages/kbn-optimizer/BUILD.bazel
index ddf2a0551968..7f04aa4b262b 100644
--- a/packages/kbn-optimizer/BUILD.bazel
+++ b/packages/kbn-optimizer/BUILD.bazel
@@ -1,5 +1,6 @@
 load("@npm//@bazel/typescript:index.bzl", "ts_config", "ts_project")
 load("@build_bazel_rules_nodejs//:index.bzl", "js_library", "pkg_npm")
+load("//src/dev/bazel:index.bzl", "jsts_transpiler")
 
 PKG_BASE_NAME = "kbn-optimizer"
 PKG_REQUIRE_NAME = "@kbn/optimizer"
@@ -29,7 +30,7 @@ NPM_MODULE_EXTRA_FILES = [
   "README.md"
 ]
 
-SRC_DEPS = [
+RUNTIME_DEPS = [
   "//packages/kbn-config",
   "//packages/kbn-dev-utils",
   "//packages/kbn-std",
@@ -59,6 +60,22 @@ SRC_DEPS = [
 ]
 
 TYPES_DEPS = [
+  "//packages/kbn-config",
+  "//packages/kbn-dev-utils",
+  "//packages/kbn-std",
+  "//packages/kbn-ui-shared-deps",
+  "//packages/kbn-utils",
+  "@npm//chalk",
+  "@npm//clean-webpack-plugin",
+  "@npm//cpy",
+  "@npm//del",
+  "@npm//execa",
+  "@npm//jest-diff",
+  "@npm//lmdb-store",
+  "@npm//pirates",
+  "@npm//resize-observer-polyfill",
+  "@npm//rxjs",
+  "@npm//zlib",
   "@npm//@types/compression-webpack-plugin",
   "@npm//@types/jest",
   "@npm//@types/json-stable-stringify",
@@ -72,7 +89,11 @@ TYPES_DEPS = [
   "@npm//@types/webpack-sources",
 ]
 
-DEPS = SRC_DEPS + TYPES_DEPS
+jsts_transpiler(
+  name = "target_node",
+  srcs = SRCS,
+  build_pkg_name = package_name(),
+)
 
 ts_config(
   name = "tsconfig",
@@ -84,13 +105,14 @@ ts_config(
 )
 
 ts_project(
-  name = "tsc",
+  name = "tsc_types",
   args = ['--pretty'],
   srcs = SRCS,
-  deps = DEPS,
+  deps = TYPES_DEPS,
   declaration = True,
   declaration_map = True,
-  out_dir = "target",
+  emit_declaration_only = True,
+  out_dir = "target_types",
   source_map = True,
   root_dir = "src",
   tsconfig = ":tsconfig",
@@ -99,7 +121,7 @@ ts_project(
 js_library(
   name = PKG_BASE_NAME,
   srcs = NPM_MODULE_EXTRA_FILES,
-  deps = DEPS + [":tsc"],
+  deps = RUNTIME_DEPS + [":target_node", ":tsc_types"],
   package_name = PKG_REQUIRE_NAME,
   visibility = ["//visibility:public"],
 )
diff --git a/packages/kbn-optimizer/babel.config.js b/packages/kbn-optimizer/babel.config.js
deleted file mode 100644
index e3a412717fb6..000000000000
--- a/packages/kbn-optimizer/babel.config.js
+++ /dev/null
@@ -1,12 +0,0 @@
-/*
- * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
- * or more contributor license agreements. Licensed under the Elastic License
- * 2.0 and the Server Side Public License, v 1; you may not use this file except
- * in compliance with, at your election, the Elastic License 2.0 or the Server
- * Side Public License, v 1.
- */
-
-module.exports = {
-  presets: ['@kbn/babel-preset/node_preset'],
-  ignore: ['**/*.test.js'],
-};
diff --git a/packages/kbn-optimizer/package.json b/packages/kbn-optimizer/package.json
index d23512f7c418..488e1b5dbfde 100644
--- a/packages/kbn-optimizer/package.json
+++ b/packages/kbn-optimizer/package.json
@@ -3,6 +3,6 @@
   "version": "1.0.0",
   "private": true,
   "license": "SSPL-1.0 OR Elastic License 2.0",
-  "main": "./target/index.js",
-  "types": "./target/index.d.ts"
+  "main": "./target_node/index.js",
+  "types": "./target_types/index.d.ts"
 }
\ No newline at end of file
diff --git a/packages/kbn-optimizer/tsconfig.json b/packages/kbn-optimizer/tsconfig.json
index 047c98db8a80..5fbd02106e77 100644
--- a/packages/kbn-optimizer/tsconfig.json
+++ b/packages/kbn-optimizer/tsconfig.json
@@ -1,9 +1,10 @@
 {
   "extends": "../../tsconfig.bazel.json",
   "compilerOptions": {
-    "outDir": "./target/types",
     "declaration": true,
     "declarationMap": true,
+    "emitDeclarationOnly": true,
+    "outDir": "./target_types",
     "rootDir": "./src",
     "sourceMap": true,
     "sourceRoot": "../../../../packages/kbn-optimizer/src",
diff --git a/packages/kbn-test/src/jest/setup/babel_polyfill.js b/packages/kbn-test/src/jest/setup/babel_polyfill.js
index 7dda4cceec65..7981eb668f38 100644
--- a/packages/kbn-test/src/jest/setup/babel_polyfill.js
+++ b/packages/kbn-test/src/jest/setup/babel_polyfill.js
@@ -9,4 +9,4 @@
 // Note: In theory importing the polyfill should not be needed, as Babel should
 // include the necessary polyfills when using `@babel/preset-env`, but for some
 // reason it did not work. See https://github.com/elastic/kibana/issues/14506
-import '@kbn/optimizer/target/node/polyfill';
+import '@kbn/optimizer/target_node/node/polyfill';