diff --git a/.forge/role-developer-live-v5-001-attempt-1-run-d2eb89f97872.md b/.forge/role-developer-live-v5-001-attempt-1-run-d2eb89f97872.md
new file mode 100644
index 0000000..10002da
--- /dev/null
+++ b/.forge/role-developer-live-v5-001-attempt-1-run-d2eb89f97872.md
@@ -0,0 +1,3 @@
+# role-developer-live-v5-001-attempt-1-run-d2eb89f97872
+
+Forge 이슈 작업 브랜치 `forge/role-developer-live-v5-001-attempt-1-run-d2eb89f97872`.
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000..267a115
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>3.2.5</version>
+        <relativePath/>
+    </parent>
+    <groupId>com.developer</groupId>
+    <artifactId>runtime-role-matrix-live-202607141836-v5</artifactId>
+    <version>1.0.0</version>
+    <name>runtime-role-matrix-live-202607141836-v5</name>
+    <description>Developer role Spring Boot skeleton</description>
+    <properties>
+        <java.version>17</java.version>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+</project>
\ No newline at end of file
diff --git a/src/main/java/com/developer/DeveloperApplication.java b/src/main/java/com/developer/DeveloperApplication.java
new file mode 100644
index 0000000..086200e
--- /dev/null
+++ b/src/main/java/com/developer/DeveloperApplication.java
@@ -0,0 +1,12 @@
+package com.developer;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class DeveloperApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(DeveloperApplication.class, args);
+    }
+}
diff --git a/src/main/java/com/developer/DeveloperService.java b/src/main/java/com/developer/DeveloperService.java
new file mode 100644
index 0000000..4aca9b2
--- /dev/null
+++ b/src/main/java/com/developer/DeveloperService.java
@@ -0,0 +1,22 @@
+package com.developer;
+
+import org.springframework.stereotype.Service;
+
+@Service
+public class DeveloperService {
+
+    public String getRole() {
+        return "developer";
+    }
+
+    public String greet(String name) {
+        if (name == null || name.isBlank()) {
+            return "Hello, Developer!";
+        }
+        return "Hello, " + name + "!";
+    }
+
+    public boolean isValidRole(String role) {
+        return "developer".equalsIgnoreCase(role);
+    }
+}
diff --git a/src/test/java/com/developer/DeveloperServiceTest.java b/src/test/java/com/developer/DeveloperServiceTest.java
new file mode 100644
index 0000000..967e26a
--- /dev/null
+++ b/src/test/java/com/developer/DeveloperServiceTest.java
@@ -0,0 +1,45 @@
+package com.developer;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+@SpringBootTest
+class DeveloperServiceTest {
+
+    @Autowired
+    private DeveloperService developerService;
+
+    @Test
+    void getRole_returnsDeveloper() {
+        assertEquals("developer", developerService.getRole());
+    }
+
+    @Test
+    void greet_withName_returnsPersonalizedGreeting() {
+        assertEquals("Hello, Alice!", developerService.greet("Alice"));
+    }
+
+    @Test
+    void greet_withNullOrBlank_returnsDefaultGreeting() {
+        assertEquals("Hello, Developer!", developerService.greet(null));
+        assertEquals("Hello, Developer!", developerService.greet(""));
+        assertEquals("Hello, Developer!", developerService.greet("   "));
+    }
+
+    @Test
+    void isValidRole_withDeveloper_returnsTrue() {
+        assertTrue(developerService.isValidRole("developer"));
+        assertTrue(developerService.isValidRole("DEVELOPER"));
+        assertTrue(developerService.isValidRole("Developer"));
+    }
+
+    @Test
+    void isValidRole_withOtherRole_returnsFalse() {
+        assertFalse(developerService.isValidRole("admin"));
+        assertFalse(developerService.isValidRole("user"));
+        assertFalse(developerService.isValidRole(null));
+    }
+}