diff --git a/backend-java/pom.xml b/backend-java/pom.xml
index 26e846ae..c8b80ec9 100644
--- a/backend-java/pom.xml
+++ b/backend-java/pom.xml
@@ -7,7 +7,7 @@
   <version>1.0.0-SNAPSHOT</version>
   <properties>
     <compiler-plugin.version>3.16.0</compiler-plugin.version>
-    <maven.compiler.release>23</maven.compiler.release>
+    <maven.compiler.release>21</maven.compiler.release>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
diff --git a/docker-compose.yml b/docker-compose.yml
index fae424b4..40e801f1 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -97,3 +97,24 @@ services:
     depends_on:
       backend-py:
         condition: service_healthy
+
+  backend-java:
+    profiles: ["java", "all"]
+    image: docker.io/library/eclipse-temurin:21-jdk
+    container_name: backend-java
+    working_dir: /project
+    entrypoint: ./mvnw quarkus:dev -Dquarkus.http.host=0.0.0.0
+    volumes:
+      - "./backend-java:/project"
+    healthcheck:
+      test: timeout 10s bash -c 'true > /dev/tcp/127.0.0.1/3000'
+    environment:
+      <<: *postgres-vars
+      QUARKUS_DATASOURCE_DEVSERVICES_ENABLED: "false"
+      QUARKUS_DATASOURCE_JDBC_URL: jdbc:postgresql://database:5432/postgres
+      QUARKUS_DATASOURCE_USERNAME: *POSTGRES_USER
+      QUARKUS_DATASOURCE_PASSWORD: *POSTGRES_PASSWORD
+    ports: ["3001:3000"]
+    depends_on:
+      database:
+        condition: service_healthy