diff --git a/.coderabbit.yaml b/.coderabbit.yaml
new file mode 100644
index 0000000..2eb0506
--- /dev/null
+++ b/.coderabbit.yaml
@@ -0,0 +1,18 @@
+# yaml-language-server: $schema=https://coderabbit.ai/integrations/schema.v2.json
+language: "ko-KR"
+ignored_branch: ""
+early_access: false
+reviews:
+  profile: "chill"
+  request_changes_workflow: false
+  high_level_summary: true
+  poem: true
+  review_status: true
+  collapse_walkthrough: false
+  auto_review:
+    enabled: true
+    drafts: false
+    base_branches:
+      - test
+chat:
+  auto_reply: true
\ No newline at end of file
diff --git a/.github/workflows/spring-boot-cicd.yml b/.github/workflows/spring-boot-cicd.yml
index 22250a0..a52590b 100644
--- a/.github/workflows/spring-boot-cicd.yml
+++ b/.github/workflows/spring-boot-cicd.yml
@@ -43,13 +43,13 @@ jobs:
       - name: Gradle Wrapper 실행권한 부여
         run: chmod +x gradlew
 
-      # application-prod.yml 파일을 빌드 전에 생성
-      - name: Create application-prod.yml from secret
+      - name: application-prod.yml 파일 생성
         run: |
-          mkdir -p src/main/resources
-          cat << 'EOF' > ./src/main/resources/application-prod.yml
-          ${{ secrets.APPLICATION_PROD_YML }}
-          EOF
+          echo "${{ secrets.APPLICATION_PROD_YML }}" > CT-web/src/main/resources/application-prod.yml
+
+      - name: config-imports.yml 파일 생성
+        run: |
+          echo "${{ secrets.CONFIG_IMPORTS_YML }}" > CT-web/src/main/resources/config-imports.yml
 
       # 브랜치 별 active profile 설정
       - name: Decide active profile
diff --git a/.gitignore b/.gitignore
index 50b60a4..73aa13d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,4 +40,6 @@ out/
 .kotlin
 
 ### ENV ###
-application-*.yml
+CT-web/src/main/resources/application-*.yml
+CT-web/src/main/resources/config-imports.yml
+CT-web/src/main/resources/springdoc.yml
diff --git a/CT-auth/build.gradle.kts b/CT-auth/build.gradle.kts
new file mode 100644
index 0000000..b5c05c1
--- /dev/null
+++ b/CT-auth/build.gradle.kts
@@ -0,0 +1,20 @@
+plugins {
+  id("java-library")
+}
+
+tasks.bootJar {
+  enabled = false
+}
+
+tasks.jar {
+  enabled = true
+  archiveClassifier.set("")
+}
+
+dependencies {
+  implementation(project(":CT-common"))
+
+  api(libs.spring.boot.starter.security)
+  api(libs.spring.security.test)
+}
+
diff --git a/CT-common/build.gradle.kts b/CT-common/build.gradle.kts
new file mode 100644
index 0000000..ff31113
--- /dev/null
+++ b/CT-common/build.gradle.kts
@@ -0,0 +1,31 @@
+plugins {
+  id("java-library")
+}
+
+tasks.bootJar {
+  enabled = false
+}
+
+tasks.jar {
+  enabled = true
+  archiveClassifier.set("")
+}
+
+// common 모듈 api 의존성은 모든 모듈에 적용
+dependencies {
+  // Spring Starter Web
+  api(libs.spring.boot.starter.web)
+
+  // JPA
+  api(libs.spring.boot.starter.data.jpa)
+
+  // Validation
+  api(libs.spring.boot.starter.validation)
+
+  // Jackson
+  api(libs.jackson.module.kotlin)
+
+  api(libs.kotlin.reflect)
+  api(libs.kotlin.stdlib)
+}
+
diff --git a/CT-common/src/main/kotlin/com/chuseok22/ctcommon/core/util/CommonUtil.kt b/CT-common/src/main/kotlin/com/chuseok22/ctcommon/core/util/CommonUtil.kt
new file mode 100644
index 0000000..da84520
--- /dev/null
+++ b/CT-common/src/main/kotlin/com/chuseok22/ctcommon/core/util/CommonUtil.kt
@@ -0,0 +1,13 @@
+package com.chuseok22.ctcommon.core.util
+
+/**
+ * null 또는 빈 문자열을 기본값으로 대체
+ */
+fun String?.nvl(fallback: String): String {
+  return when {
+    this == null -> fallback
+    this == "null" -> fallback
+    this.isBlank() -> fallback
+    else -> this
+  }
+}
\ No newline at end of file
diff --git a/CT-member/build.gradle.kts b/CT-member/build.gradle.kts
new file mode 100644
index 0000000..c5a1c62
--- /dev/null
+++ b/CT-member/build.gradle.kts
@@ -0,0 +1,19 @@
+plugins {
+  id("java-library")
+}
+
+tasks.bootJar {
+  enabled = false
+}
+
+tasks.jar {
+  enabled = true
+  archiveClassifier.set("")
+}
+
+dependencies {
+  implementation(project(":CT-common"))
+
+  // Postgres
+  api(libs.postgresql)
+}
diff --git a/CT-web/build.gradle.kts b/CT-web/build.gradle.kts
new file mode 100644
index 0000000..9826098
--- /dev/null
+++ b/CT-web/build.gradle.kts
@@ -0,0 +1,15 @@
+plugins {
+  id("java-library")
+  id("org.springframework.boot")
+}
+
+dependencies {
+  implementation(project(":CT-auth"))
+  implementation(project(":CT-common"))
+  implementation(project(":CT-member"))
+
+  implementation(libs.swagger.ui)
+  implementation(libs.http.logging)
+  implementation(libs.api.change.log)
+}
+
diff --git a/src/main/kotlin/com/chuseok22/campustableserver/CampusTableServerApplication.kt b/CT-web/src/main/kotlin/com/chuseok22/ctweb/CampusTableServerApplication.kt
similarity index 86%
rename from src/main/kotlin/com/chuseok22/campustableserver/CampusTableServerApplication.kt
rename to CT-web/src/main/kotlin/com/chuseok22/ctweb/CampusTableServerApplication.kt
index 2c38939..6583231 100644
--- a/src/main/kotlin/com/chuseok22/campustableserver/CampusTableServerApplication.kt
+++ b/CT-web/src/main/kotlin/com/chuseok22/ctweb/CampusTableServerApplication.kt
@@ -1,4 +1,4 @@
-package com.chuseok22.campustableserver
+package com.chuseok22.ctweb
 
 import org.springframework.boot.autoconfigure.SpringBootApplication
 import org.springframework.boot.runApplication
diff --git a/CT-web/src/main/kotlin/com/chuseok22/ctweb/infrastructure/config/ComponentScanConfig.kt b/CT-web/src/main/kotlin/com/chuseok22/ctweb/infrastructure/config/ComponentScanConfig.kt
new file mode 100644
index 0000000..c619122
--- /dev/null
+++ b/CT-web/src/main/kotlin/com/chuseok22/ctweb/infrastructure/config/ComponentScanConfig.kt
@@ -0,0 +1,11 @@
+package com.chuseok22.ctweb.infrastructure.config
+
+import org.springframework.context.annotation.ComponentScan
+import org.springframework.context.annotation.Configuration
+
+@Configuration
+@ComponentScan(basePackages = [
+  "com.chuseok22.*"
+])
+class ComponentScanConfig {
+}
\ No newline at end of file
diff --git a/CT-web/src/main/kotlin/com/chuseok22/ctweb/infrastructure/config/DatabaseScanConfig.kt b/CT-web/src/main/kotlin/com/chuseok22/ctweb/infrastructure/config/DatabaseScanConfig.kt
new file mode 100644
index 0000000..50222e6
--- /dev/null
+++ b/CT-web/src/main/kotlin/com/chuseok22/ctweb/infrastructure/config/DatabaseScanConfig.kt
@@ -0,0 +1,11 @@
+package com.chuseok22.ctweb.infrastructure.config
+
+import org.springframework.boot.autoconfigure.domain.EntityScan
+import org.springframework.context.annotation.Configuration
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories
+
+@Configuration
+@EntityScan(basePackages = ["com.chuseok22.*"])
+@EnableJpaRepositories(basePackages = ["com.chuseok22.*"])
+class DatabaseScanConfig {
+}
\ No newline at end of file
diff --git a/CT-web/src/main/kotlin/com/chuseok22/ctweb/infrastructure/config/SwaggerConfig.kt b/CT-web/src/main/kotlin/com/chuseok22/ctweb/infrastructure/config/SwaggerConfig.kt
new file mode 100644
index 0000000..82fbf78
--- /dev/null
+++ b/CT-web/src/main/kotlin/com/chuseok22/ctweb/infrastructure/config/SwaggerConfig.kt
@@ -0,0 +1,53 @@
+package com.chuseok22.ctweb.infrastructure.config
+
+import com.chuseok22.ctweb.infrastructure.properties.SpringDocProperties
+import io.swagger.v3.oas.annotations.OpenAPIDefinition
+import io.swagger.v3.oas.annotations.info.Info
+import io.swagger.v3.oas.models.Components
+import io.swagger.v3.oas.models.OpenAPI
+import io.swagger.v3.oas.models.security.SecurityRequirement
+import io.swagger.v3.oas.models.security.SecurityScheme
+import io.swagger.v3.oas.models.servers.Server
+import org.springdoc.core.customizers.OpenApiCustomizer
+import org.springframework.boot.context.properties.EnableConfigurationProperties
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+
+@OpenAPIDefinition(
+  info = Info(
+    title = "캠퍼스 테이블 CampusTable"
+  )
+)
+@Configuration
+@EnableConfigurationProperties(SpringDocProperties::class)
+class SwaggerConfig(
+  private val properties: SpringDocProperties
+) {
+
+  @Bean
+  fun OpenAPI(): OpenAPI {
+    val apiKey: SecurityScheme = SecurityScheme()
+      .type(SecurityScheme.Type.HTTP)
+      .scheme("bearer")
+      .bearerFormat("JWT")
+      .`in`(SecurityScheme.In.HEADER)
+      .name("Authorization")
+
+    return OpenAPI()
+      .components(Components().addSecuritySchemes("Bearer Token", apiKey))
+      .addSecurityItem(SecurityRequirement().addList("Bearer Token"))
+  }
+
+  @Bean
+  fun serverCustomizer(): OpenApiCustomizer {
+    return OpenApiCustomizer { openApi ->
+      properties.servers.forEach { server ->
+        openApi.addServersItem(
+          Server()
+            .url(server.url)
+            .description(server.description)
+        )
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/CT-web/src/main/kotlin/com/chuseok22/ctweb/infrastructure/properties/SpringDocProperties.kt b/CT-web/src/main/kotlin/com/chuseok22/ctweb/infrastructure/properties/SpringDocProperties.kt
new file mode 100644
index 0000000..2494a1b
--- /dev/null
+++ b/CT-web/src/main/kotlin/com/chuseok22/ctweb/infrastructure/properties/SpringDocProperties.kt
@@ -0,0 +1,20 @@
+package com.chuseok22.ctweb.infrastructure.properties
+
+import jakarta.validation.Valid
+import jakarta.validation.constraints.NotBlank
+import org.springframework.boot.context.properties.ConfigurationProperties
+import org.springframework.validation.annotation.Validated
+
+@Validated
+@ConfigurationProperties(prefix = "springdoc")
+data class SpringDocProperties(
+  @field:Valid
+  val servers: List<Servers>
+) {
+  data class Servers(
+    @field:NotBlank
+    val url: String,
+    @field:NotBlank
+    val description: String
+  )
+}
diff --git a/CT-web/src/main/resources/application.yml b/CT-web/src/main/resources/application.yml
new file mode 100644
index 0000000..5e06972
--- /dev/null
+++ b/CT-web/src/main/resources/application.yml
@@ -0,0 +1,30 @@
+spring:
+  profiles:
+    active: prod
+  config:
+    import: classpath:config-imports.yml
+  jpa:
+    open-in-view: false
+    properties:
+      hibernate:
+        jdbc:
+          time_zone: UTC
+        dialect: org.hibernate.dialect.PostgreSQLDialect
+        show_sql: false
+        format_sql: true
+        use_sql_comments: true
+  flyway:
+    enabled: true
+    locations: classpath:db/migration
+    baseline-on-migrate: false
+    validate-on-migrate: true
+    out-of-order: false # 과거 버전이 뒤늦게 들어오는 경우 방지
+    clean-disabled: true # 실수로 clean 되는 경우 방지
+  jackson:
+    time-zone: Asia/Seoul
+  servlet:
+    multipart:
+      enabled: true # 파일 업로드 허용
+      max-file-size: 200MB # 업로드 파일 최대 크기
+      max-request-size: 1000MB # 요청 전체 최대 크기
+      file-size-threshold: 10MB
diff --git a/build.gradle.kts b/build.gradle.kts
index 5bc473b..2299c8d 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,82 +1,59 @@
-plugins {
-  kotlin("jvm") version "1.9.25"
-  kotlin("plugin.spring") version "1.9.25"
-  id("org.springframework.boot") version "3.5.9"
-  id("io.spring.dependency-management") version "1.1.7"
-  kotlin("plugin.jpa") version "1.9.25"
-}
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
-group = "com.chuseok22"
-version = "0.0.1-SNAPSHOT"
-description = "campus-table-server"
+plugins {
+  alias(libs.plugins.kotlin.jvm) apply false
+  alias(libs.plugins.kotlin.spring) apply false
+  alias(libs.plugins.kotlin.jpa) apply false
+  alias(libs.plugins.kotlin.allopen) apply false
+  alias(libs.plugins.spring.boot) apply false
+  alias(libs.plugins.spring.dependency.management) apply false
 
-java {
-  toolchain {
-    languageVersion = JavaLanguageVersion.of(21)
-  }
 }
 
-configurations {
-  compileOnly {
-    extendsFrom(configurations.annotationProcessor.get())
-  }
-}
+allprojects {
+  group = "com.chuseok22"
+  version = "0.0.1-SNAPSHOT"
+  description = "campus-table-server"
 
-repositories {
-  maven {
-    url = uri("https://nexus.chuseok22.com/repository/maven-releases/")
+  repositories {
+    maven {
+      url = uri("https://nexus.chuseok22.com/repository/maven-releases/")
+    }
+    mavenCentral()
   }
-  mavenCentral()
 }
 
-dependencies {
-  // Spring Web
-  implementation("org.springframework.boot:spring-boot-starter-web")
-  testImplementation("org.springframework.boot:spring-boot-starter-test")
-
-  // JPA
-  implementation("org.springframework.boot:spring-boot-starter-data-jpa")
-
-  // Postgres
-  runtimeOnly("org.postgresql:postgresql")
-
-  // Redis
-  implementation("org.springframework.boot:spring-boot-starter-data-redis")
-
-  // Spring Security
-  implementation("org.springframework.boot:spring-boot-starter-security")
-  testImplementation("org.springframework.security:spring-security-test")
+subprojects {
+  apply(plugin = "java-library")
+  apply(plugin = "org.jetbrains.kotlin.jvm")
+  apply(plugin = "org.jetbrains.kotlin.plugin.spring")
+  apply(plugin = "org.jetbrains.kotlin.plugin.jpa")
+  apply(plugin = "org.springframework.boot")
+  apply(plugin = "io.spring.dependency-management")
 
-  // Spring Validation
-  implementation("org.springframework.boot:spring-boot-starter-validation")
-
-  // Jackson
-  implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
-
-  // Reflect
-  implementation("org.jetbrains.kotlin:kotlin-reflect")
-
-  // Lombok
-  compileOnly("org.projectlombok:lombok")
-  annotationProcessor("org.projectlombok:lombok")
+  configure<JavaPluginExtension> {
+    toolchain {
+      languageVersion.set(JavaLanguageVersion.of(21))
+    }
+  }
 
-  // JUnit5
-  testImplementation("org.jetbrains.kotlin:kotlin-test-junit5")
-  testRuntimeOnly("org.junit.platform:junit-platform-launcher")
-}
+  configurations.named("compileOnly") {
+    extendsFrom(configurations.named("annotationProcessor").get())
+  }
 
-kotlin {
-  compilerOptions {
-    freeCompilerArgs.addAll("-Xjsr305=strict")
+  dependencies {
+    add("testImplementation", rootProject.libs.kotlin.test.junit5)
+    add("testRuntimeOnly", rootProject.libs.junit.platform.launcher)
   }
-}
 
-allOpen {
-  annotation("jakarta.persistence.Entity")
-  annotation("jakarta.persistence.MappedSuperclass")
-  annotation("jakarta.persistence.Embeddable")
-}
+  tasks.withType<Test> {
+    useJUnitPlatform()
+  }
 
-tasks.withType<Test> {
-  useJUnitPlatform()
+  tasks.withType<KotlinCompile>().configureEach {
+    compilerOptions {
+      jvmTarget.set(org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_21)
+      freeCompilerArgs.add("-Xjsr305=strict")
+    }
+  }
 }
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
new file mode 100644
index 0000000..7a0388e
--- /dev/null
+++ b/gradle/libs.versions.toml
@@ -0,0 +1,62 @@
+[versions]
+# Plugins & Core
+kotlin = "1.9.25"
+springBoot = "3.5.9"
+springDependencyManagement = "1.1.7"
+swaggerUI = "3.0.1"
+apiChangeLog = "1.0.1"
+sejongPortalLogin = "1.0.0"
+httpLogging = "0.0.9"
+
+[libraries]
+# Spring Starter Web
+spring-boot-starter-web = { module = "org.springframework.boot:spring-boot-starter-web" }
+
+# JPA
+spring-boot-starter-data-jpa = { module = "org.springframework.boot:spring-boot-starter-data-jpa" }
+
+# Validation
+spring-boot-starter-validation = { module = "org.springframework.boot:spring-boot-starter-validation" }
+
+# Test
+spring-boot-starter-test = { module = "org.springframework.boot:spring-boot-starter-test" }
+
+# Redis
+spring-boot-starter-data-redis = { module = "org.springframework.boot:spring-boot-starter-data-redis" }
+
+# Spring Security
+spring-boot-starter-security = { module = "org.springframework.boot:spring-boot-starter-security" }
+spring-security-test = { module = "org.springframework.security:spring-security-test" }
+
+# Postgres
+postgresql = { module = "org.postgresql:postgresql" }
+
+# JSON
+jackson-module-kotlin = { module = "com.fasterxml.jackson.module:jackson-module-kotlin" }
+
+# Kotlin
+kotlin-reflect = { module = "org.jetbrains.kotlin:kotlin-reflect" }
+kotlin-stdlib = { module = "org.jetbrains.kotlin:kotlin-stdlib" }
+kotlin-test-junit5 = { module = "org.jetbrains.kotlin:kotlin-test-junit5" }
+junit-platform-launcher = { module = "org.junit.platform:junit-platform-launcher" }
+
+# Swagger UI
+swagger-ui = { module = "org.springdoc:springdoc-openapi-starter-webmvc-ui", version.ref = "swaggerUI" }
+
+# Chuseok22 ApiChangeLog
+api-change-log = { module = "com.chuseok22:ApiChangeLog", version.ref = "apiChangeLog" }
+
+# Chuseok22 Sejong Portal Login
+sejong-portal-login = { module = "com.chuseok22:sejong-portal-login", version.ref = "sejongPortalLogin" }
+
+# Chuseok22 Logging
+http-logging = { module = "com.chuseok22:logging", version.ref = "httpLogging" }
+
+
+[plugins]
+kotlin-jvm = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
+kotlin-spring = { id = "org.jetbrains.kotlin.plugin.spring", version.ref = "kotlin" }
+kotlin-jpa = { id = "org.jetbrains.kotlin.plugin.jpa", version.ref = "kotlin" }
+kotlin-allopen = { id = "org.jetbrains.kotlin.plugin.allopen", version.ref = "kotlin" }
+spring-boot = { id = "org.springframework.boot", version.ref = "springBoot" }
+spring-dependency-management = { id = "io.spring.dependency-management", version.ref = "springDependencyManagement" }
diff --git a/settings.gradle.kts b/settings.gradle.kts
index c793f26..ea89535 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -1 +1,6 @@
 rootProject.name = "campus-table-server"
+
+include("CT-auth")
+include("CT-common")
+include("CT-member")
+include("CT-web")
\ No newline at end of file
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
deleted file mode 100644
index e69de29..0000000
diff --git a/src/test/kotlin/com/chuseok22/campustableserver/CampusTableServerApplicationTests.kt b/src/test/kotlin/com/chuseok22/campustableserver/CampusTableServerApplicationTests.kt
deleted file mode 100644
index 6c378db..0000000
--- a/src/test/kotlin/com/chuseok22/campustableserver/CampusTableServerApplicationTests.kt
+++ /dev/null
@@ -1,13 +0,0 @@
-package com.chuseok22.campustableserver
-
-import org.junit.jupiter.api.Test
-import org.springframework.boot.test.context.SpringBootTest
-
-@SpringBootTest
-class CampusTableServerApplicationTests {
-
-  @Test
-  fun contextLoads() {
-  }
-
-}