diff --git a/.ci/jobs.yml b/.ci/jobs.yml
index a55c3fc587fe79..37218d4429dc34 100644
--- a/.ci/jobs.yml
+++ b/.ci/jobs.yml
@@ -1,4 +1,4 @@
-# This file is needed by functionalTests:ensureAllTestsInCiGroup for the list of ciGroups. That must be changed before this file can be removed
+# This file is needed by node scripts/ensure_all_tests_in_ci_group  for the list of ciGroups. That must be changed before this file can be removed
 
 JOB:
   - kibana-intake
diff --git a/scripts/ensure_all_tests_in_ci_group.js b/scripts/ensure_all_tests_in_ci_group.js
new file mode 100644
index 00000000000000..d189aac8f62e86
--- /dev/null
+++ b/scripts/ensure_all_tests_in_ci_group.js
@@ -0,0 +1,21 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+require('../src/setup_node_env');
+require('../src/dev/run_ensure_all_tests_in_ci_group');
diff --git a/tasks/function_test_groups.js b/src/dev/run_ensure_all_tests_in_ci_group.js
similarity index 65%
rename from tasks/function_test_groups.js
rename to src/dev/run_ensure_all_tests_in_ci_group.js
index 0b456dcb0da13b..b5d36c405cbbbe 100644
--- a/tasks/function_test_groups.js
+++ b/src/dev/run_ensure_all_tests_in_ci_group.js
@@ -21,32 +21,28 @@ import { readFileSync } from 'fs';
 import { resolve } from 'path';
 
 import execa from 'execa';
-import grunt from 'grunt';
 import { safeLoad } from 'js-yaml';
 
-const JOBS_YAML = readFileSync(resolve(__dirname, '../.ci/jobs.yml'), 'utf8');
+import { run } from '@kbn/dev-utils';
+
+const JOBS_YAML = readFileSync(resolve(__dirname, '../../.ci/jobs.yml'), 'utf8');
 const TEST_TAGS = safeLoad(JOBS_YAML)
   .JOB.filter((id) => id.startsWith('kibana-ciGroup'))
   .map((id) => id.replace(/^kibana-/, ''));
 
-grunt.registerTask(
-  'functionalTests:ensureAllTestsInCiGroup',
-  'Check that all of the functional tests are in a CI group',
-  async function () {
-    const done = this.async();
-
-    try {
-      const result = await execa(process.execPath, [
-        'scripts/functional_test_runner',
-        ...TEST_TAGS.map((tag) => `--include-tag=${tag}`),
-        '--config',
-        'test/functional/config.js',
-        '--test-stats',
-      ]);
-      const stats = JSON.parse(result.stderr);
-
-      if (stats.excludedTests.length > 0) {
-        grunt.fail.fatal(`
+run(async ({ log }) => {
+  try {
+    const result = await execa(process.execPath, [
+      'scripts/functional_test_runner',
+      ...TEST_TAGS.map((tag) => `--include-tag=${tag}`),
+      '--config',
+      'test/functional/config.js',
+      '--test-stats',
+    ]);
+    const stats = JSON.parse(result.stderr);
+
+    if (stats.excludedTests.length > 0) {
+      log.error(`
           ${stats.excludedTests.length} tests are excluded by the ciGroup tags, make sure that
           all test suites have a "ciGroup{X}" tag and that "tasks/functional_test_groups.js"
           knows about the tag that you are using.
@@ -55,12 +51,11 @@ grunt.registerTask(
 
           - ${stats.excludedTests.join('\n          - ')}
         `);
-        return;
-      }
-
-      done();
-    } catch (error) {
-      grunt.fail.fatal(error.stack);
+      process.exitCode = 1;
+      return;
     }
+  } catch (error) {
+    log.error(error.stack);
+    process.exitCode = 1;
   }
-);
+});
diff --git a/test/scripts/jenkins_build_kibana.sh b/test/scripts/jenkins_build_kibana.sh
index 55eb06a43864c3..0211c0f82e5026 100755
--- a/test/scripts/jenkins_build_kibana.sh
+++ b/test/scripts/jenkins_build_kibana.sh
@@ -10,7 +10,7 @@ fi
 export KBN_NP_PLUGINS_BUILT=true
 
 echo " -> Ensuring all functional tests are in a ciGroup"
-yarn run grunt functionalTests:ensureAllTestsInCiGroup;
+node scripts/ensure_all_tests_in_ci_group;
 
 echo " -> building and extracting OSS Kibana distributable for use in functional tests"
 node scripts/build --debug --oss