diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..a642a2c
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,39 @@
+image: docker:20.10@sha256:2967f0819c84dd589ed0a023b9d25dcfe7a3c123d5bf784ffbb77edf55335f0c
+
+include:
+  - local: 'backend/.gitlab-ci-backend.yml'
+  - local: 'frontend/.gitlab-ci-frontend.yml'
+
+stages:
+  - sync
+  - deploy
+  - backend_build
+  - frontend_build
+
+sync_branches:
+  stage: sync
+  rules:
+    - if: '$CI_COMMIT_BRANCH == "production"'
+  before_script:
+    - git config --global user.email "gitlab-ci@rhein-software.dev"
+    - git config --global user.name "GitLab CI"
+  script:
+    - git remote set-url origin "https://oauth2:${CI_JOB_TOKEN}@${CI_SERVER_HOST}/${CI_PROJECT_PATH}.git"
+    - git checkout dev
+    - git pull origin dev
+    - git merge --no-ff origin/production
+    - git push origin dev
+
+deploy_dev:
+  stage: deploy
+  rules:
+    - if: '$CI_COMMIT_BRANCH == "dev"'
+  script:
+    - echo "Deploying DEV environment"
+
+deploy_production:
+  stage: deploy
+  rules:
+    - if: '$CI_COMMIT_BRANCH == "production"'
+  script:
+    - echo "Deploying PROD environment"
diff --git a/backend/.gitlab-ci-backend.yml b/backend/.gitlab-ci-backend.yml
new file mode 100644
index 0000000..36bcc18
--- /dev/null
+++ b/backend/.gitlab-ci-backend.yml
@@ -0,0 +1,7 @@
+stages:
+  - backend_build
+
+backend_build_job:
+  stage: backend_build
+  script:
+    - echo "Building backend project on branch: $CI_COMMIT_BRANCH"
diff --git a/frontend/.gitlab-ci-frontend.yml b/frontend/.gitlab-ci-frontend.yml
new file mode 100644
index 0000000..1cc5590
--- /dev/null
+++ b/frontend/.gitlab-ci-frontend.yml
@@ -0,0 +1,7 @@
+stages:
+  - frontend_build
+
+frontend_build_job:
+  stage: frontend_build
+  script:
+    - echo "Building frontend project on branch: $CI_COMMIT_BRANCH"