diff --git a/config/services.yaml b/config/services.yaml
index 9d4d959..0b54e56 100644
--- a/config/services.yaml
+++ b/config/services.yaml
@@ -10,3 +10,18 @@ services:
         exclude:
             - '../src/Domain/'
             - '../src/Kernel.php'
+
+    App\Domain\Article\Repository\ArticleRepositoryInterface:
+        alias: App\Infrastructure\Persistence\Repository\DoctrineArticleRepository
+
+    App\Domain\Article\Repository\ArticleTypeRepositoryInterface:
+        alias: App\Infrastructure\Persistence\Repository\DoctrineArticleTypeRepository
+
+    App\Domain\Channel\Repository\PlatformRepositoryInterface:
+        alias: App\Infrastructure\Persistence\Repository\DoctrinePlatformRepository
+
+    App\Domain\Order\Repository\CustomerRepositoryInterface:
+        alias: App\Infrastructure\Persistence\Repository\DoctrineCustomerRepository
+
+    App\Domain\Order\Repository\OrderRepositoryInterface:
+        alias: App\Infrastructure\Persistence\Repository\DoctrineOrderRepository
diff --git a/src/Infrastructure/Persistence/Repository/DoctrineArticleRepository.php b/src/Infrastructure/Persistence/Repository/DoctrineArticleRepository.php
new file mode 100644
index 0000000..13fe758
--- /dev/null
+++ b/src/Infrastructure/Persistence/Repository/DoctrineArticleRepository.php
@@ -0,0 +1,67 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Persistence\Repository;
+
+use App\Domain\Article\Article;
+use App\Domain\Article\ArticleStatus;
+use App\Domain\Article\Repository\ArticleRepositoryInterface;
+use Doctrine\ORM\EntityManagerInterface;
+use Symfony\Component\Uid\Uuid;
+
+final class DoctrineArticleRepository implements ArticleRepositoryInterface
+{
+    public function __construct(private readonly EntityManagerInterface $em) {}
+
+    public function findById(Uuid $id): ?Article
+    {
+        return $this->em->find(Article::class, $id);
+    }
+
+    public function findBySku(string $sku): ?Article
+    {
+        return $this->em->getRepository(Article::class)->findOneBy(['sku' => $sku]);
+    }
+
+    public function findByInventoryNumber(string $inventoryNumber): ?Article
+    {
+        return $this->em->getRepository(Article::class)->findOneBy(['inventoryNumber' => $inventoryNumber]);
+    }
+
+    /** @return list<Article> */
+    public function findByStatus(ArticleStatus $status): array
+    {
+        /** @var list<Article> */
+        return $this->em->getRepository(Article::class)->findBy(['status' => $status]);
+    }
+
+    public function decrementStockAtomic(Uuid $articleId): bool
+    {
+        $affected = $this->em->getConnection()->executeStatement(
+            'UPDATE app.articles SET stock = stock - 1 WHERE id = :id AND stock > 0',
+            ['id' => $articleId->toRfc4122()],
+        );
+
+        if ($affected > 0) {
+            $article = $this->em->find(Article::class, $articleId);
+            if (null !== $article) {
+                $this->em->refresh($article);
+            }
+        }
+
+        return $affected > 0;
+    }
+
+    public function save(Article $article): void
+    {
+        $this->em->persist($article);
+        $this->em->flush();
+    }
+
+    public function remove(Article $article): void
+    {
+        $this->em->remove($article);
+        $this->em->flush();
+    }
+}
diff --git a/src/Infrastructure/Persistence/Repository/DoctrineArticleTypeRepository.php b/src/Infrastructure/Persistence/Repository/DoctrineArticleTypeRepository.php
new file mode 100644
index 0000000..ebe67d2
--- /dev/null
+++ b/src/Infrastructure/Persistence/Repository/DoctrineArticleTypeRepository.php
@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Persistence\Repository;
+
+use App\Domain\Article\ArticleType;
+use App\Domain\Article\Repository\ArticleTypeRepositoryInterface;
+use Doctrine\ORM\EntityManagerInterface;
+use Symfony\Component\Uid\Uuid;
+
+final class DoctrineArticleTypeRepository implements ArticleTypeRepositoryInterface
+{
+    public function __construct(private readonly EntityManagerInterface $em) {}
+
+    public function findById(Uuid $id): ?ArticleType
+    {
+        return $this->em->find(ArticleType::class, $id);
+    }
+
+    public function findByName(string $name): ?ArticleType
+    {
+        return $this->em->getRepository(ArticleType::class)->findOneBy(['name' => $name]);
+    }
+
+    /** @return list<ArticleType> */
+    public function findAll(): array
+    {
+        /** @var list<ArticleType> */
+        return $this->em->getRepository(ArticleType::class)->findAll();
+    }
+
+    public function save(ArticleType $articleType): void
+    {
+        $this->em->persist($articleType);
+        $this->em->flush();
+    }
+}
diff --git a/src/Infrastructure/Persistence/Repository/DoctrineCustomerRepository.php b/src/Infrastructure/Persistence/Repository/DoctrineCustomerRepository.php
new file mode 100644
index 0000000..da26ccc
--- /dev/null
+++ b/src/Infrastructure/Persistence/Repository/DoctrineCustomerRepository.php
@@ -0,0 +1,50 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Persistence\Repository;
+
+use App\Domain\Order\Customer;
+use App\Domain\Order\Repository\CustomerRepositoryInterface;
+use Doctrine\ORM\EntityManagerInterface;
+use Symfony\Component\Uid\Uuid;
+
+final class DoctrineCustomerRepository implements CustomerRepositoryInterface
+{
+    public function __construct(private readonly EntityManagerInterface $em) {}
+
+    public function findById(Uuid $id): ?Customer
+    {
+        return $this->em->find(Customer::class, $id);
+    }
+
+    public function findByPlatformId(string $platform, string $platformUserId): ?Customer
+    {
+        return $this->em->getRepository(Customer::class)
+            ->createQueryBuilder('c')
+            ->where("JSON_UNQUOTE(JSON_EXTRACT(c.platformIds, :path)) = :id")
+            ->setParameter('path', '$."'.$platform.'"')
+            ->setParameter('id', $platformUserId)
+            ->setMaxResults(1)
+            ->getQuery()
+            ->getOneOrNullResult();
+    }
+
+    public function findByMatchingKey(string $matchingKey): ?Customer
+    {
+        $customers = $this->em->getRepository(Customer::class)->findAll();
+        foreach ($customers as $customer) {
+            if ($customer->getMatchingKey() === $matchingKey) {
+                return $customer;
+            }
+        }
+
+        return null;
+    }
+
+    public function save(Customer $customer): void
+    {
+        $this->em->persist($customer);
+        $this->em->flush();
+    }
+}
diff --git a/src/Infrastructure/Persistence/Repository/DoctrineOrderRepository.php b/src/Infrastructure/Persistence/Repository/DoctrineOrderRepository.php
new file mode 100644
index 0000000..9340e0e
--- /dev/null
+++ b/src/Infrastructure/Persistence/Repository/DoctrineOrderRepository.php
@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Persistence\Repository;
+
+use App\Domain\Order\Order;
+use App\Domain\Order\Repository\OrderRepositoryInterface;
+use Doctrine\ORM\EntityManagerInterface;
+use Symfony\Component\Uid\Uuid;
+
+final class DoctrineOrderRepository implements OrderRepositoryInterface
+{
+    public function __construct(private readonly EntityManagerInterface $em) {}
+
+    public function findById(Uuid $id): ?Order
+    {
+        return $this->em->find(Order::class, $id);
+    }
+
+    public function findByPlatformOrderId(string $platformOrderId): ?Order
+    {
+        return $this->em->getRepository(Order::class)->findOneBy(['platformOrderId' => $platformOrderId]);
+    }
+
+    public function save(Order $order): void
+    {
+        $this->em->persist($order);
+        $this->em->flush();
+    }
+}
diff --git a/src/Infrastructure/Persistence/Repository/DoctrinePlatformRepository.php b/src/Infrastructure/Persistence/Repository/DoctrinePlatformRepository.php
new file mode 100644
index 0000000..30ab749
--- /dev/null
+++ b/src/Infrastructure/Persistence/Repository/DoctrinePlatformRepository.php
@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Persistence\Repository;
+
+use App\Domain\Channel\Platform;
+use App\Domain\Channel\Repository\PlatformRepositoryInterface;
+use Doctrine\ORM\EntityManagerInterface;
+use Symfony\Component\Uid\Uuid;
+
+final class DoctrinePlatformRepository implements PlatformRepositoryInterface
+{
+    public function __construct(private readonly EntityManagerInterface $em) {}
+
+    public function findById(Uuid $id): ?Platform
+    {
+        return $this->em->find(Platform::class, $id);
+    }
+
+    public function findByType(string $type): ?Platform
+    {
+        return $this->em->getRepository(Platform::class)->findOneBy(['type' => $type]);
+    }
+
+    /** @return list<Platform> */
+    public function findAll(): array
+    {
+        /** @var list<Platform> */
+        return $this->em->getRepository(Platform::class)->findAll();
+    }
+
+    public function save(Platform $platform): void
+    {
+        $this->em->persist($platform);
+        $this->em->flush();
+    }
+}