diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/audition/AuditionApplicant.kt b/src/main/kotlin/kr/co/vividnext/sodalive/audition/AuditionApplicant.kt
index e485407..21dc568 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/audition/AuditionApplicant.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/audition/AuditionApplicant.kt
@@ -9,8 +9,8 @@ import javax.persistence.ManyToOne
 
 @Entity
 data class AuditionApplicant(
-    val voicePath: String,
     val phoneNumber: String,
+    var voicePath: String? = null,
     val isActive: Boolean = true
 ) : BaseEntity() {
     @ManyToOne(fetch = FetchType.LAZY)
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/audition/applicant/ApplyAuditionRoleRequest.kt b/src/main/kotlin/kr/co/vividnext/sodalive/audition/applicant/ApplyAuditionRoleRequest.kt
new file mode 100644
index 0000000..c5b7d4e
--- /dev/null
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/audition/applicant/ApplyAuditionRoleRequest.kt
@@ -0,0 +1,6 @@
+package kr.co.vividnext.sodalive.audition.applicant
+
+data class ApplyAuditionRoleRequest(
+    val roleId: Long,
+    val phoneNumber: String
+)
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/audition/applicant/AuditionApplicantController.kt b/src/main/kotlin/kr/co/vividnext/sodalive/audition/applicant/AuditionApplicantController.kt
index ff03e54..9caeb2d 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/audition/applicant/AuditionApplicantController.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/audition/applicant/AuditionApplicantController.kt
@@ -6,9 +6,12 @@ import kr.co.vividnext.sodalive.member.Member
 import org.springframework.data.domain.Pageable
 import org.springframework.security.core.annotation.AuthenticationPrincipal
 import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.PostMapping
 import org.springframework.web.bind.annotation.RequestMapping
 import org.springframework.web.bind.annotation.RequestParam
+import org.springframework.web.bind.annotation.RequestPart
 import org.springframework.web.bind.annotation.RestController
+import org.springframework.web.multipart.MultipartFile
 
 @RestController
 @RequestMapping("/audition/applicant")
@@ -31,4 +34,22 @@ class AuditionApplicantController(private val service: AuditionApplicantService)
             )
         )
     }
+
+    @PostMapping
+    fun applyAuditionRole(
+        @RequestPart("contentFile")
+        contentFile: MultipartFile?,
+        @RequestPart("request") requestString: String,
+        @AuthenticationPrincipal(expression = "#this == 'anonymousUser' ? null : member") member: Member?
+    ) = run {
+        if (member == null) throw SodaException("로그인 정보를 확인해주세요.")
+
+        ApiResponse.ok(
+            service.applyAuditionRole(
+                contentFile = contentFile,
+                requestString = requestString,
+                member = member
+            )
+        )
+    }
 }
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/audition/applicant/AuditionApplicantService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/audition/applicant/AuditionApplicantService.kt
index edc1c94..d27f7ca 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/audition/applicant/AuditionApplicantService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/audition/applicant/AuditionApplicantService.kt
@@ -1,9 +1,30 @@
 package kr.co.vividnext.sodalive.audition.applicant
 
+import com.amazonaws.services.s3.model.ObjectMetadata
+import com.fasterxml.jackson.databind.ObjectMapper
+import kr.co.vividnext.sodalive.audition.AuditionApplicant
+import kr.co.vividnext.sodalive.audition.role.AuditionRoleRepository
+import kr.co.vividnext.sodalive.aws.s3.S3Uploader
+import kr.co.vividnext.sodalive.common.SodaException
+import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.utils.generateFileName
+import org.springframework.beans.factory.annotation.Value
+import org.springframework.data.repository.findByIdOrNull
 import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
+import org.springframework.web.multipart.MultipartFile
 
 @Service
-class AuditionApplicantService(private val repository: AuditionApplicantRepository) {
+class AuditionApplicantService(
+    private val repository: AuditionApplicantRepository,
+    private val roleRepository: AuditionRoleRepository,
+
+    private val s3Uploader: S3Uploader,
+    private val objectMapper: ObjectMapper,
+
+    @Value("\${cloud.aws.s3.bucket}")
+    private val bucket: String
+) {
     fun getAuditionApplicantList(
         auditionRoleId: Long,
         sortType: AuditionApplicantSortType,
@@ -23,4 +44,31 @@ class AuditionApplicantService(private val repository: AuditionApplicantReposito
             items = items
         )
     }
+
+    @Transactional
+    fun applyAuditionRole(contentFile: MultipartFile?, requestString: String, member: Member) {
+        if (contentFile == null) throw SodaException("녹음 파일을 확인해 주세요.")
+        val request = objectMapper.readValue(requestString, ApplyAuditionRoleRequest::class.java)
+
+        val auditionRole = roleRepository.findByIdOrNull(id = request.roleId)
+            ?: throw SodaException("잘못된 요청입니다.\n다시 시도해 주세요.")
+
+        val applicant = AuditionApplicant(phoneNumber = request.phoneNumber)
+        applicant.role = auditionRole
+        applicant.member = member
+        repository.save(applicant)
+
+        val contentFileName = generateFileName(prefix = "${applicant.id}-applicant")
+
+        val metadata = ObjectMetadata()
+        metadata.contentLength = contentFile.size
+
+        val contentPath = s3Uploader.upload(
+            inputStream = contentFile.inputStream,
+            bucket = bucket,
+            filePath = "audition/${applicant.id}/$contentFileName",
+            metadata = metadata
+        )
+        applicant.voicePath = contentPath
+    }
 }