diff --git a/.github/workflows/backend-cicd_ArgoCD.yaml b/.github/workflows/backend-cicd_ArgoCD.yaml
new file mode 100644
index 0000000..2cfd9fb
--- /dev/null
+++ b/.github/workflows/backend-cicd_ArgoCD.yaml
@@ -0,0 +1,254 @@
+name: Backend Services CI/CD
+
+on:
+  push:
+    branches: [ main, develop ]
+    paths:
+      - 'api-gateway/**'
+      - 'user-service/**'
+      - 'bill-service/**'
+      - 'product-service/**'
+      - 'kos-mock/**'
+      - 'common/**'
+      - '.github/**'
+  pull_request:
+    branches: [ main ]
+  workflow_dispatch:
+    inputs:
+      ENVIRONMENT:
+        description: 'Target environment'
+        required: true
+        default: 'dev'
+        type: choice
+        options:
+          - dev
+          - staging
+          - prod
+      SKIP_SONARQUBE:
+        description: 'Skip SonarQube Analysis'
+        required: false
+        default: 'true'
+        type: choice
+        options:
+          - 'true'
+          - 'false'
+
+env:
+  REGISTRY: acrdigitalgarage01.azurecr.io
+  IMAGE_ORG: phonebill
+  RESOURCE_GROUP: rg-digitalgarage-01
+  AKS_CLUSTER: aks-digitalgarage-01
+
+jobs:
+  build:
+    name: Build and Test
+    runs-on: ubuntu-latest
+    outputs:
+      image_tag: ${{ steps.set_outputs.outputs.image_tag }}
+      environment: ${{ steps.set_outputs.outputs.environment }}
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v3
+        with:
+          java-version: '21'
+          distribution: 'temurin'
+          cache: 'gradle'
+
+      - name: Determine environment
+        id: determine_env
+        run: |
+          # Use input parameter or default to 'dev'
+          ENVIRONMENT="${{ github.event.inputs.ENVIRONMENT || 'dev' }}"
+          echo "environment=$ENVIRONMENT" >> $GITHUB_OUTPUT
+
+      - name: Load environment variables
+        id: env_vars
+        run: |
+          ENV=${{ steps.determine_env.outputs.environment }}
+
+          # Initialize variables with defaults
+          REGISTRY="acrdigitalgarage01.azurecr.io"
+          IMAGE_ORG="phonebill"
+          RESOURCE_GROUP="rg-digitalgarage-01"
+          AKS_CLUSTER="aks-digitalgarage-01"
+          NAMESPACE="phonebill-dg0500"
+
+          # Read environment variables from .github/config file
+          if [[ -f ".github/config/deploy_env_vars_${ENV}" ]]; then
+            while IFS= read -r line || [[ -n "$line" ]]; do
+              # Skip comments and empty lines
+              [[ "$line" =~ ^#.*$ ]] && continue
+              [[ -z "$line" ]] && continue
+
+              # Extract key-value pairs
+              key=$(echo "$line" | cut -d '=' -f1)
+              value=$(echo "$line" | cut -d '=' -f2-)
+
+              # Override defaults if found in config
+              case "$key" in
+                "resource_group") RESOURCE_GROUP="$value" ;;
+                "cluster_name") AKS_CLUSTER="$value" ;;
+              esac
+            done < ".github/config/deploy_env_vars_${ENV}"
+          fi
+
+          # Export for other jobs
+          echo "REGISTRY=$REGISTRY" >> $GITHUB_ENV
+          echo "IMAGE_ORG=$IMAGE_ORG" >> $GITHUB_ENV
+          echo "RESOURCE_GROUP=$RESOURCE_GROUP" >> $GITHUB_ENV
+          echo "AKS_CLUSTER=$AKS_CLUSTER" >> $GITHUB_ENV
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
+      - name: Build with Gradle
+        run: |
+          ./gradlew build -x test
+
+      - name: SonarQube Analysis & Quality Gate
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+          SONAR_HOST_URL: ${{ secrets.SONAR_HOST_URL }}
+        run: |
+          # Check if SonarQube should be skipped
+          SKIP_SONARQUBE="${{ github.event.inputs.SKIP_SONARQUBE || 'true' }}"
+
+          if [[ "$SKIP_SONARQUBE" == "true" ]]; then
+            echo "⏭️ Skipping SonarQube Analysis (SKIP_SONARQUBE=$SKIP_SONARQUBE)"
+            exit 0
+          fi
+
+          # Define services array
+          services=(api-gateway user-service bill-service product-service kos-mock)
+
+          # Run tests, coverage reports, and SonarQube analysis for each service
+          for service in "${services[@]}"; do
+            ./gradlew :$service:test :$service:jacocoTestReport :$service:sonar \
+              -Dsonar.projectKey=phonebill-$service-dg0500 \
+              -Dsonar.projectName=phonebill-$service-dg0500 \
+              -Dsonar.host.url=$SONAR_HOST_URL \
+              -Dsonar.token=$SONAR_TOKEN \
+              -Dsonar.java.binaries=build/classes/java/main \
+              -Dsonar.coverage.jacoco.xmlReportPaths=build/reports/jacoco/test/jacocoTestReport.xml \
+              -Dsonar.exclusions=**/config/**,**/entity/**,**/dto/**,**/*Application.class,**/exception/**
+          done
+
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: app-builds
+          path: |
+            api-gateway/build/libs/*.jar
+            user-service/build/libs/*.jar
+            bill-service/build/libs/*.jar
+            product-service/build/libs/*.jar
+            kos-mock/build/libs/*.jar
+
+      - name: Set outputs
+        id: set_outputs
+        run: |
+          # Generate timestamp for image tag
+          #IMAGE_TAG=$(date +%Y%m%d%H%M%S)
+          IMAGE_TAG=dg0500
+          echo "image_tag=$IMAGE_TAG" >> $GITHUB_OUTPUT
+          echo "environment=${{ steps.determine_env.outputs.environment }}" >> $GITHUB_OUTPUT
+
+  release:
+    name: Build and Push Docker Images
+    needs: build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+
+      - name: Download build artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: app-builds
+
+      - name: Set environment variables from build job
+        run: |
+          echo "REGISTRY=${{ env.REGISTRY }}" >> $GITHUB_ENV
+          echo "IMAGE_ORG=${{ env.IMAGE_ORG }}" >> $GITHUB_ENV
+          echo "ENVIRONMENT=${{ needs.build.outputs.environment }}" >> $GITHUB_ENV
+          echo "IMAGE_TAG=${{ needs.build.outputs.image_tag }}" >> $GITHUB_ENV
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Docker Hub (prevent rate limit)
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+
+      - name: Login to Azure Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ secrets.ACR_USERNAME }}
+          password: ${{ secrets.ACR_PASSWORD }}
+
+      - name: Build and push Docker images for all services
+        run: |
+          # Define services array
+          services=(api-gateway user-service bill-service product-service kos-mock)
+
+          # Build and push each service image
+          for service in "${services[@]}"; do
+            echo "Building and pushing $service..."
+            docker build \
+              --build-arg BUILD_LIB_DIR="$service/build/libs" \
+              --build-arg ARTIFACTORY_FILE="$service.jar" \
+              -f deployment/container/Dockerfile-backend \
+              -t ${{ env.REGISTRY }}/${{ env.IMAGE_ORG }}/$service:${{ needs.build.outputs.environment }}-${{ needs.build.outputs.image_tag }} .
+
+            docker push ${{ env.REGISTRY }}/${{ env.IMAGE_ORG }}/$service:${{ needs.build.outputs.environment }}-${{ needs.build.outputs.image_tag }}
+          done
+
+  update-manifest:
+    name: Update Manifest Repository
+    needs: [build, release]
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Set image tag environment variable
+        run: |
+          echo "IMAGE_TAG=${{ needs.build.outputs.image_tag }}" >> $GITHUB_ENV
+          echo "ENVIRONMENT=${{ needs.build.outputs.environment }}" >> $GITHUB_ENV
+
+      - name: Update Manifest Repository
+        run: |
+          # 매니페스트 레포지토리 클론
+          REPO_URL=$(echo "https://github.com/cna-bootcamp/phonebill-manifest.git" | sed 's|https://||')
+          git clone https://${{ secrets.GIT_USERNAME }}:${{ secrets.GIT_PASSWORD }}@${REPO_URL} manifest-repo
+          cd manifest-repo
+
+          # Kustomize 설치
+          curl -s "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh" | bash
+          sudo mv kustomize /usr/local/bin/
+
+          # 매니페스트 업데이트
+          cd phonebill/kustomize/overlays/${{ env.ENVIRONMENT }}
+
+          # 각 서비스별 이미지 태그 업데이트
+          services="api-gateway user-service bill-service product-service kos-mock"
+          for service in $services; do
+            kustomize edit set image acrdigitalgarage01.azurecr.io/phonebill/$service:${{ env.ENVIRONMENT }}-${{ env.IMAGE_TAG }}
+          done
+
+          # Git 설정 및 푸시
+          cd ../../../..
+          git config user.name "GitHub Actions"
+          git config user.email "actions@github.com"
+          git add .
+          git commit -m "🚀 Update phonebill ${{ env.ENVIRONMENT }} images to ${{ env.ENVIRONMENT }}-${{ env.IMAGE_TAG }}"
+          git push origin main
+
+          echo "✅ 매니페스트 업데이트 완료. ArgoCD가 자동으로 배포합니다."
\ No newline at end of file
diff --git a/deployment/cicd/Jenkinsfile_ArgoCD b/deployment/cicd/Jenkinsfile_ArgoCD
new file mode 100644
index 0000000..4a91a31
--- /dev/null
+++ b/deployment/cicd/Jenkinsfile_ArgoCD
@@ -0,0 +1,244 @@
+def PIPELINE_ID = "${env.BUILD_NUMBER}"
+
+def getImageTag() {
+    def dateFormat = new java.text.SimpleDateFormat('yyyyMMddHHmmss')
+    def currentDate = new Date()
+    return dateFormat.format(currentDate)
+}
+
+podTemplate(
+    label: "${PIPELINE_ID}",
+    serviceAccount: 'jenkins',
+    slaveConnectTimeout: 300,
+    idleMinutes: 1,
+    activeDeadlineSeconds: 3600,
+    podRetention: never(),  // 파드 자동 정리 옵션: never(), onFailure(), always(), default()
+    yaml: '''
+        spec:
+          terminationGracePeriodSeconds: 3
+          restartPolicy: Never
+          tolerations:
+          - effect: NoSchedule
+            key: dedicated
+            operator: Equal
+            value: cicd
+    ''',
+    containers: [
+        containerTemplate(
+            name: 'podman',
+            image: "mgoltzsche/podman",
+            ttyEnabled: true,
+            command: 'cat',
+            privileged: true,
+            resourceRequestCpu: '500m',
+            resourceRequestMemory: '2Gi',
+            resourceLimitCpu: '2000m',
+            resourceLimitMemory: '4Gi'
+        ),
+        containerTemplate(
+            name: 'gradle',
+            image: 'gradle:jdk21',
+            ttyEnabled: true,
+            command: 'cat',
+            resourceRequestCpu: '500m',
+            resourceRequestMemory: '1Gi',
+            resourceLimitCpu: '1000m',
+            resourceLimitMemory: '2Gi',
+            envVars: [
+                envVar(key: 'DOCKER_HOST', value: 'unix:///run/podman/podman.sock'),
+                envVar(key: 'TESTCONTAINERS_DOCKER_SOCKET_OVERRIDE', value: '/run/podman/podman.sock'),
+                envVar(key: 'TESTCONTAINERS_RYUK_DISABLED', value: 'true')
+            ]
+        ),
+        containerTemplate(
+            name: 'azure-cli',
+            image: 'hiondal/azure-kubectl:latest',
+            command: 'cat',
+            ttyEnabled: true,
+            resourceRequestCpu: '200m',
+            resourceRequestMemory: '512Mi',
+            resourceLimitCpu: '500m',
+            resourceLimitMemory: '1Gi'
+        ),
+        containerTemplate(
+            name: 'git',
+            image: 'alpine/git:latest',
+            command: 'cat',
+            ttyEnabled: true,
+            resourceRequestCpu: '100m',
+            resourceRequestMemory: '256Mi',
+            resourceLimitCpu: '300m',
+            resourceLimitMemory: '512Mi'
+        )
+    ],
+    volumes: [
+        emptyDirVolume(mountPath: '/home/gradle/.gradle', memory: false),
+        emptyDirVolume(mountPath: '/root/.azure', memory: false),
+        emptyDirVolume(mountPath: '/run/podman', memory: false)
+    ]
+) {
+    node(PIPELINE_ID) {
+        def props
+        //def imageTag = getImageTag()
+        def imageTag = "dg0500"
+        def environment = params.ENVIRONMENT ?: 'dev'
+        def skipSonarQube = (params.SKIP_SONARQUBE?.toLowerCase() == 'true')
+        def services = ['api-gateway', 'user-service', 'bill-service', 'product-service', 'kos-mock']
+
+        try {
+            stage("Get Source") {
+                checkout scm
+                props = readProperties file: "deployment/cicd/config/deploy_env_vars_${environment}"
+            }
+
+            stage("Setup AKS") {
+                container('azure-cli') {
+                    withCredentials([azureServicePrincipal('azure-credentials')]) {
+                        sh """
+                            az login --service-principal -u \$AZURE_CLIENT_ID -p \$AZURE_CLIENT_SECRET -t \$AZURE_TENANT_ID
+                            az aks get-credentials --resource-group ${props.resource_group} --name ${props.cluster_name} --overwrite-existing
+                            kubectl create namespace phonebill-dg0500 --dry-run=client -o yaml | kubectl apply -f -
+                        """
+                    }
+                }
+            }
+
+            stage('Build') {
+                container('gradle') {
+                    sh """
+                        chmod +x gradlew
+                        ./gradlew build -x test
+                    """
+                }
+            }
+
+            stage('SonarQube Analysis & Quality Gate') {
+                if (skipSonarQube) {
+                    echo "⏭️ Skipping SonarQube Analysis (SKIP_SONARQUBE=${params.SKIP_SONARQUBE})"
+                } else {
+                    container('gradle') {
+                        withSonarQubeEnv('SonarQube') {
+                            // 각 서비스별 테스트 및 SonarQube 분석
+                            services.each { service ->
+                                sh """
+                                    ./gradlew :${service}:test :${service}:jacocoTestReport :${service}:sonar \\
+                                        -Dsonar.projectKey=phonebill-${service}-dg0500 \\
+                                        -Dsonar.projectName=phonebill-${service}-dg0500 \\
+                                        -Dsonar.java.binaries=build/classes/java/main \\
+                                        -Dsonar.coverage.jacoco.xmlReportPaths=build/reports/jacoco/test/jacocoTestReport.xml \\
+                                        -Dsonar.exclusions=**/config/**,**/entity/**,**/dto/**,**/*Application.class,**/exception/**
+                                """
+                            }
+
+                            // Quality Gate 확인
+                            timeout(time: 10, unit: 'MINUTES') {
+                                def qg = waitForQualityGate()
+                                if (qg.status != 'OK') {
+                                    error "Pipeline aborted due to quality gate failure: ${qg.status}"
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+
+            stage('Build & Push Images') {
+                timeout(time: 30, unit: 'MINUTES') {
+                    container('podman') {
+                        withCredentials([
+                            usernamePassword(
+                                credentialsId: 'acr-credentials',
+                                usernameVariable: 'ACR_USERNAME',
+                                passwordVariable: 'ACR_PASSWORD'
+                            ),
+                            usernamePassword(
+                                credentialsId: 'dockerhub-credentials',
+                                usernameVariable: 'DOCKERHUB_USERNAME',
+                                passwordVariable: 'DOCKERHUB_PASSWORD'
+                            )
+                        ]) {
+                            // Docker Hub 로그인 (rate limit 해결)
+                            sh "podman login docker.io --username \$DOCKERHUB_USERNAME --password \$DOCKERHUB_PASSWORD"
+
+                            // ACR 로그인
+                            sh "podman login acrdigitalgarage01.azurecr.io --username \$ACR_USERNAME --password \$ACR_PASSWORD"
+
+                            services.each { service ->
+                                sh """
+                                    podman build \\
+                                        --build-arg BUILD_LIB_DIR="${service}/build/libs" \\
+                                        --build-arg ARTIFACTORY_FILE="${service}.jar" \\
+                                        -f deployment/container/Dockerfile-backend \\
+                                        -t acrdigitalgarage01.azurecr.io/phonebill/${service}:${environment}-${imageTag} .
+
+                                    podman push acrdigitalgarage01.azurecr.io/phonebill/${service}:${environment}-${imageTag}
+                                """
+                            }
+                        }
+                    }
+                }
+            }
+
+            stage('Update Manifest Repository') {
+                container('git') {
+                    withCredentials([usernamePassword(
+                        credentialsId: 'github-credentials-dg0500',
+                        usernameVariable: 'GIT_USERNAME',
+                        passwordVariable: 'GIT_TOKEN'
+                    )]) {
+                        sh """
+                            # 매니페스트 레포지토리 클론
+                            REPO_URL=\$(echo "https://github.com/cna-bootcamp/phonebill-manifest.git" | sed 's|https://||')
+                            git clone https://\${GIT_USERNAME}:\${GIT_TOKEN}@\${REPO_URL} manifest-repo
+                            cd manifest-repo
+
+                            # Kustomize 설치
+                            curl -s "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh" | bash
+                            mkdir -p \$HOME/bin && mv kustomize \$HOME/bin/
+                            export PATH=\$PATH:\$HOME/bin
+
+                            # 환경별 매니페스트 업데이트
+                            cd phonebill/kustomize/overlays/${environment}
+
+                            # 각 서비스별 이미지 태그 업데이트
+                            services="api-gateway user-service bill-service product-service kos-mock"
+                            for service in \$services; do
+                                \$HOME/bin/kustomize edit set image acrdigitalgarage01.azurecr.io/phonebill/\$service:${environment}-${imageTag}
+                            done
+
+                            # Git 설정 및 푸시
+                            cd ../../../..
+                            git config user.name "Jenkins CI"
+                            git config user.email "jenkins@example.com"
+                            git add .
+                            git commit -m "🚀 Update phonebill ${environment} images to ${environment}-${imageTag}"
+                            git push origin main
+
+                            echo "✅ 매니페스트 업데이트 완료. ArgoCD가 자동으로 배포합니다."
+                        """
+                    }
+                }
+            }
+
+            // 파이프라인 완료 로그 (Scripted Pipeline 방식)
+            stage('Pipeline Complete') {
+                echo "🧹 Pipeline completed. Pod cleanup handled by Jenkins Kubernetes Plugin."
+
+                // 성공/실패 여부 로깅
+                if (currentBuild.result == null || currentBuild.result == 'SUCCESS') {
+                    echo "✅ Pipeline completed successfully!"
+                } else {
+                    echo "❌ Pipeline failed with result: ${currentBuild.result}"
+                }
+            }
+
+        } catch (Exception e) {
+            currentBuild.result = 'FAILURE'
+            echo "❌ Pipeline failed with exception: ${e.getMessage()}"
+            throw e
+        } finally {
+            echo "🧹 Cleaning up resources and preparing for pod termination..."
+            echo "Pod will be terminated in 3 seconds due to terminationGracePeriodSeconds: 3"
+        }
+    }
+}
\ No newline at end of file