diff --git a/.forge/runtime-role-matrix-live-20260714101723-v7-reviewer-001-attempt-3-run-f5cb07374744.md b/.forge/runtime-role-matrix-live-20260714101723-v7-reviewer-001-attempt-3-run-f5cb07374744.md
new file mode 100644
index 0000000..2139757
--- /dev/null
+++ b/.forge/runtime-role-matrix-live-20260714101723-v7-reviewer-001-attempt-3-run-f5cb07374744.md
@@ -0,0 +1,3 @@
+# runtime-role-matrix-live-20260714101723-v7-reviewer-001-attempt-3-run-f5cb07374744
+
+Forge 이슈 작업 브랜치 `forge/runtime-role-matrix-live-20260714101723-v7-reviewer-001-attempt-3-run-f5cb07374744`.
diff --git a/pom.xml b/pom.xml
index 8062b34..23282ac 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,37 +3,54 @@
          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/>
+        <groupId>com.klaroworks</groupId>
+        <artifactId>developer-role-smoke</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
     </parent>
-    <groupId>com.example</groupId>
+
     <artifactId>developer-role-smoke</artifactId>
-    <version>1.0.0</version>
-    <name>Developer Role Smoke Test</name>
-    <description>Spring Boot smoke application for Developer role</description>
+    <version>1.0.0-SNAPSHOT</version>
+    <packaging>jar</packaging>
+
+    <name>Developer Role Smoke</name>
+    <description>Runtime role matrix for developer role validation</description>
+
     <properties>
-        <java.version>17</java.version>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <junit.version>5.10.0</junit.version>
     </properties>
+
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter</artifactId>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
         </dependency>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-test</artifactId>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <version>${junit.version}</version>
             <scope>test</scope>
         </dependency>
     </dependencies>
+
     <build>
         <plugins>
             <plugin>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-maven-plugin</artifactId>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>3.1.2</version>
             </plugin>
         </plugins>
     </build>
-</project>
\ No newline at end of file
+</project>
diff --git a/src/main/java/com/klaroworks/runtime/role/RoleContext.java b/src/main/java/com/klaroworks/runtime/role/RoleContext.java
new file mode 100644
index 0000000..51c18ec
--- /dev/null
+++ b/src/main/java/com/klaroworks/runtime/role/RoleContext.java
@@ -0,0 +1,59 @@
+package com.klaroworks.runtime.role;
+
+import java.util.Map;
+import java.util.Objects;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * Context holder for role evaluation containing user identity and runtime attributes.
+ */
+public final class RoleContext {
+
+    private final String userId;
+    private final Map<String, Object> attributes;
+
+    public RoleContext(String userId) {
+        this(userId, new ConcurrentHashMap<>());
+    }
+
+    public RoleContext(String userId, Map<String, Object> attributes) {
+        this.userId = Objects.requireNonNull(userId, "userId must not be null");
+        this.attributes = new ConcurrentHashMap<>(Objects.requireNonNull(attributes, "attributes must not be null"));
+    }
+
+    public String getUserId() {
+        return userId;
+    }
+
+    public Map<String, Object> getAttributes() {
+        return Map.copyOf(attributes);
+    }
+
+    public Object getAttribute(String key) {
+        return attributes.get(key);
+    }
+
+    public RoleContext withAttribute(String key, Object value) {
+        Map<String, Object> newAttrs = new ConcurrentHashMap<>(attributes);
+        newAttrs.put(key, value);
+        return new RoleContext(userId, newAttrs);
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        RoleContext that = (RoleContext) o;
+        return Objects.equals(userId, that.userId) && Objects.equals(attributes, that.attributes);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(userId, attributes);
+    }
+
+    @Override
+    public String toString() {
+        return "RoleContext{userId='" + userId + "', attributes=" + attributes + "}";
+    }
+}
diff --git a/src/main/java/com/klaroworks/runtime/role/RoleMatrixRuntime.java b/src/main/java/com/klaroworks/runtime/role/RoleMatrixRuntime.java
new file mode 100644
index 0000000..a6944c0
--- /dev/null
+++ b/src/main/java/com/klaroworks/runtime/role/RoleMatrixRuntime.java
@@ -0,0 +1,132 @@
+package com.klaroworks.runtime.role;
+
+import java.util.*;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * Runtime engine for evaluating role-based access and permissions.
+ */
+public final class RoleMatrixRuntime {
+
+    private final Map<String, Set<String>> roleHierarchy;
+    private final Map<String, Set<String>> rolePermissions;
+    private final RoleValidator validator;
+    private final ThreadLocal<RoleContext> currentContext;
+
+    public RoleMatrixRuntime() {
+        this(new HashMap<>(), new HashMap<>(), new RoleValidator());
+    }
+
+    public RoleMatrixRuntime(Map<String, Set<String>> roleHierarchy, Map<String, Set<String>> rolePermissions, RoleValidator validator) {
+        this.roleHierarchy = new ConcurrentHashMap<>(roleHierarchy);
+        this.rolePermissions = new ConcurrentHashMap<>(rolePermissions);
+        this.validator = validator != null ? validator : new RoleValidator();
+        this.currentContext = ThreadLocal.withInitial(() -> null);
+    }
+
+    public boolean hasRole(RoleContext context, String role) {
+        if (context == null || role == null) {
+            return false;
+        }
+        Set<String> userRoles = getUserRoles(context);
+        return userRoles.contains(role) || hasRoleInHierarchy(role, userRoles);
+    }
+
+    public boolean hasPermission(RoleContext context, String permission) {
+        if (context == null || permission == null) {
+            return false;
+        }
+        Set<String> userRoles = getUserRoles(context);
+        for (String role : userRoles) {
+            Set<String> perms = rolePermissions.get(role);
+            if (perms != null && perms.contains(permission)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public boolean evaluateRole(RoleContext context, String roleExpression) {
+        if (context == null || roleExpression == null) {
+            return false;
+        }
+        String[] parts = roleExpression.split("\\|");
+        for (String part : parts) {
+            String trimmed = part.trim();
+            if (trimmed.startsWith("!") && hasRole(context, trimmed.substring(1))) {
+                return false;
+            } else if (hasRole(context, trimmed)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public void setContext(RoleContext context) {
+        currentContext.set(context);
+    }
+
+    public RoleContext getContext() {
+        return currentContext.get();
+    }
+
+    public void clearContext() {
+        currentContext.remove();
+    }
+
+    public void defineRole(String role, Set<String> parentRoles) {
+        roleHierarchy.put(role, Set.copyOf(parentRoles));
+    }
+
+    public void assignPermissions(String role, Set<String> permissions) {
+        rolePermissions.put(role, Set.copyOf(permissions));
+    }
+
+    private Set<String> getUserRoles(RoleContext context) {
+        Object rolesObj = context.getAttribute("roles");
+        if (rolesObj instanceof Collection) {
+            Set<String> roles = new HashSet<>();
+            for (Object r : (Collection<?>) rolesObj) {
+                if (r != null) {
+                    roles.add(r.toString());
+                }
+            }
+            return roles;
+        }
+        return Collections.emptySet();
+    }
+
+    private boolean hasRoleInHierarchy(String targetRole, Set<String> userRoles) {
+        for (String userRole : userRoles) {
+            if (hasInHierarchy(targetRole, userRole, new HashSet<>())) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private boolean hasInHierarchy(String target, String current, Set<String> visited) {
+        if (visited.contains(current)) {
+            return false;
+        }
+        visited.add(current);
+        Set<String> parents = roleHierarchy.get(current);
+        if (parents != null) {
+            if (parents.contains(target)) {
+                return true;
+            }
+            for (String parent : parents) {
+                if (hasInHierarchy(target, parent, visited)) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    public static final class Nested {
+        public static boolean evaluate(RoleMatrixRuntime runtime, RoleContext context, String expression) {
+            return runtime.evaluateRole(context, expression);
+        }
+    }
+}
diff --git a/src/main/java/com/klaroworks/runtime/role/RoleValidator.java b/src/main/java/com/klaroworks/runtime/role/RoleValidator.java
new file mode 100644
index 0000000..0b20259
--- /dev/null
+++ b/src/main/java/com/klaroworks/runtime/role/RoleValidator.java
@@ -0,0 +1,94 @@
+package com.klaroworks.runtime.role;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * Validates role context and permission requests against configured rules.
+ */
+public final class RoleValidator {
+
+    private final Set<String> validRoles;
+    private final Set<String> validPermissions;
+
+    public RoleValidator() {
+        this(Collections.emptySet(), Collections.emptySet());
+    }
+
+    public RoleValidator(Collection<String> validRoles, Collection<String> validPermissions) {
+        this.validRoles = Set.copyOf(validRoles);
+        this.validPermissions = Set.copyOf(validPermissions);
+    }
+
+    public boolean isValidRole(String role) {
+        if (role == null || role.isBlank()) {
+            return false;
+        }
+        return validRoles.isEmpty() || validRoles.contains(role);
+    }
+
+    public boolean isValidPermission(String permission) {
+        if (permission == null || permission.isBlank()) {
+            return false;
+        }
+        return validPermissions.isEmpty() || validPermissions.contains(permission);
+    }
+
+    public ValidationResult validateContext(RoleContext context) {
+        if (context == null) {
+            return new ValidationResult(false, "Context must not be null");
+        }
+        if (context.getUserId() == null || context.getUserId().isBlank()) {
+            return new ValidationResult(false, "User ID must not be blank");
+        }
+        return new ValidationResult(true, null);
+    }
+
+    public ValidationResult validateRole(String role) {
+        if (role == null || role.isBlank()) {
+            return new ValidationResult(false, "Role must not be blank");
+        }
+        if (!validRoles.isEmpty() && !validRoles.contains(role)) {
+            return new ValidationResult(false, "Unknown role: " + role);
+        }
+        return new ValidationResult(true, null);
+    }
+
+    public ValidationResult validatePermission(String permission) {
+        if (permission == null || permission.isBlank()) {
+            return new ValidationResult(false, "Permission must not be blank");
+        }
+        if (!validPermissions.isEmpty() && !validPermissions.contains(permission)) {
+            return new ValidationResult(false, "Unknown permission: " + permission);
+        }
+        return new ValidationResult(true, null);
+    }
+
+    public Set<String> getValidRoles() {
+        return Collections.unmodifiableSet(validRoles);
+    }
+
+    public Set<String> getValidPermissions() {
+        return Collections.unmodifiableSet(validPermissions);
+    }
+
+    public static final class ValidationResult {
+        private final boolean valid;
+        private final String errorMessage;
+
+        public ValidationResult(boolean valid, String errorMessage) {
+            this.valid = valid;
+            this.errorMessage = errorMessage;
+        }
+
+        public boolean isValid() {
+            return valid;
+        }
+
+        public String getErrorMessage() {
+            return errorMessage;
+        }
+    }
+}