diff --git a/installer/Migration/V5_4_0/TranslationHelper.php b/installer/Migration/V5_4_0/TranslationHelper.php
new file mode 100644
index 0000000..db25eab
--- /dev/null
+++ b/installer/Migration/V5_4_0/TranslationHelper.php
@@ -0,0 +1,151 @@
+<?php
+/**
+ * OrangeHRM is a comprehensive Human Resource Management (HRM) System that captures
+ * all the essential functionalities required for any enterprise.
+ * Copyright (C) 2006 OrangeHRM Inc., http://www.orangehrm.com
+ *
+ * OrangeHRM is free software; you can redistribute it and/or modify it under the terms of
+ * the GNU General Public License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * OrangeHRM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program;
+ * if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301, USA
+ */
+
+namespace OrangeHRM\Installer\Migration\V5_4_0;
+
+use Doctrine\DBAL\Connection;
+use Doctrine\DBAL\Exception;
+use Doctrine\DBAL\Query\QueryBuilder;
+use OrangeHRM\Installer\Util\V1\Dto\TransUnit;
+use Symfony\Component\Yaml\Yaml;
+
+class TranslationHelper
+{
+    protected ?LangStringHelper $langStringHelper = null;
+    private Connection $connection;
+
+    /**
+     * @param Connection $connection
+     */
+    public function __construct(Connection $connection)
+    {
+        $this->connection = $connection;
+    }
+
+    /**
+     * @return Connection
+     */
+    protected function getConnection(): Connection
+    {
+        return $this->connection;
+    }
+
+    /**
+     * @param string $language
+     * @return void
+     */
+    public function addTranslations(string $language): void
+    {
+        $filepath = __DIR__ . '/translation/' . $language . '.yaml';
+        $yml = Yaml::parseFile($filepath);
+        $translations = array_shift($yml);
+        foreach ($translations as $translation) {
+            $sourceObj = new TransUnit($translation['target'], $translation['unitId']);
+            $this->saveTranslationRecord($translation['group'], $sourceObj, $language);
+        }
+    }
+
+    /**
+     * @param string $groupName
+     * @param TransUnit $source
+     * @param string $language
+     * @return void
+     */
+    private function saveTranslationRecord(string $groupName, TransUnit $source, string $language): void
+    {
+        $groupId = $this->getLangStringHelper()->getGroupId($groupName);
+        $langStringId = $this->getLangStringHelper()->getLangStringIdByUnitIdAndGroup($source->getUnitId(), $groupId);
+        if ($langStringId == null) {
+            throw new Exception(
+                'Cannot add a translation to a non existent lang string: ' . $source->getUnitId()
+            );
+        }
+        $langId = $this->getLanguageId($language);
+        $existTranslation = $this->getTranslationRecord($langStringId, $langId);
+        if ($existTranslation != null) {
+            // TODO hanldle customized translations
+        } else {
+            $insetQuery = $this->createQueryBuilder();
+            $insetQuery->insert('ohrm_i18n_translate')
+                ->values(
+                    [
+                        'lang_string_id' => ':langStringId',
+                        'language_id' => ':langId',
+                        'value' => ':target',
+                    ]
+                )
+                ->setParameter('langStringId', $langStringId)
+                ->setParameter('langId', $langId)
+                ->setParameter('target', $source->getTarget())
+                ->executeQuery();
+        }
+    }
+
+    /**
+     * @return LangStringHelper
+     */
+    private function getLangStringHelper(): LangStringHelper
+    {
+        if (is_null($this->langStringHelper)) {
+            $this->langStringHelper = new LangStringHelper($this->getConnection());
+        }
+        return $this->langStringHelper;
+    }
+
+    /**
+     * @param string $langCode
+     * @return int
+     * @throws Exception
+     */
+    private function getLanguageId(string $langCode): int
+    {
+        $searchQuery = $this->createQueryBuilder();
+        $searchQuery->select('language.id')
+            ->from('ohrm_i18n_language', 'language')
+            ->where('language.code = :langCode')
+            ->setParameter('langCode', $langCode);
+        return $searchQuery->executeQuery()->fetchOne();
+    }
+
+    /**
+     * @return QueryBuilder
+     */
+    protected function createQueryBuilder(): QueryBuilder
+    {
+        return $this->getConnection()->createQueryBuilder();
+    }
+
+    /**
+     * @param array $langStringId
+     * @param int $langId
+     * @return string
+     * @throws Exception
+     */
+    private function getTranslationRecord(int $langStringId, int $langId): string
+    {
+        $searchQuery = $this->createQueryBuilder();
+        $searchQuery->select('translate.id')
+            ->from('ohrm_i18n_translate', 'translate')
+            ->where('translate.language_id = :langCode')
+            ->andWhere('translate.lang_string_id = :langStringId')
+            ->setParameter('langCode', $langId)
+            ->setParameter('langStringId', $langStringId);
+        return $searchQuery->executeQuery()->fetchOne();
+    }
+}