diff --git a/users/serializers.py b/users/serializers.py
index 85351b01..00a13f82 100644
--- a/users/serializers.py
+++ b/users/serializers.py
@@ -68,6 +68,7 @@ class Meta:
             "last_name",
             "patronymic",
             "speciality",
+            "birthday",
             "avatar",
             "city",
             "is_active",
diff --git a/users/views.py b/users/views.py
index 9d792157..0ed4426a 100644
--- a/users/views.py
+++ b/users/views.py
@@ -35,7 +35,6 @@
     UserListSerializer,
     VerifyEmailSerializer,
 )
-
 from .filters import UserFilter
 
 User = get_user_model()
@@ -77,10 +76,10 @@ def post(self, request, *args, **kwargs):
         return Response(serializer.data, status=status.HTTP_201_CREATED, headers=headers)
 
 
-class UserAdditionalRolesView(GenericAPIView):
+class UserAdditionalRolesView(APIView):
     permission_classes = [AllowAny]
 
-    def get(self, request, format=None):
+    def get(self, request):
         """
         Return a tuple of user additional roles types.
         """
@@ -105,19 +104,19 @@ class UserDetail(RetrieveUpdateDestroyAPIView):
     serializer_class = UserDetailSerializer
 
 
-class CurrentUser(APIView):
+class CurrentUser(GenericAPIView):
     queryset = User.objects.get_users_for_detail_view()
     permission_classes = [IsAuthenticated]
     serializer_class = UserDetailSerializer
 
     def get(self, request):
         user = request.user
-        serializer = UserDetailSerializer(user)
+        serializer = self.get_serializer(user)
         return Response(serializer.data, status=status.HTTP_200_OK)
 
 
 class UserTypesView(APIView):
-    def get(self, request, format=None):
+    def get(self, request):
         """
         Return a list of tuples [(id, name), ..] of user types.
         """
diff --git a/vacancy/serializers.py b/vacancy/serializers.py
index 96bd7e38..5e7bc2d5 100644
--- a/vacancy/serializers.py
+++ b/vacancy/serializers.py
@@ -1,9 +1,12 @@
+from django.contrib.auth import get_user_model
 from rest_framework import serializers
 
 from projects.models import Project
 from users.serializers import UserDetailSerializer
 from vacancy.models import Vacancy, VacancyResponse
 
+User = get_user_model()
+
 
 class ProjectForVacancySerializer(serializers.ModelSerializer):
     class Meta:
@@ -62,16 +65,42 @@ class Meta:
 class VacancyResponseListSerializer(serializers.ModelSerializer):
     is_approved = serializers.BooleanField(read_only=True)
     user = UserDetailSerializer(read_only=True)
+    user_id = serializers.IntegerField(write_only=True)
 
     class Meta:
         model = VacancyResponse
         fields = [
             "id",
             "user",
+            "user_id",
             "why_me",
             "is_approved",
             "vacancy",
         ]
+        extra_kwargs = {
+            "user_id": {"write_only": True},
+        }
+
+    def validate(self, attrs):
+        vacancy = attrs["vacancy"]
+        user = self.validate_user_exists(attrs["user_id"])
+
+        if VacancyResponse.objects.filter(vacancy=vacancy, user=user).exists():
+            raise serializers.ValidationError("Vacancy response already exists")
+        return attrs
+
+    def validate_user_exists(self, value):
+        try:
+            user = User.objects.get(pk=value)
+        except User.DoesNotExist:
+            raise serializers.ValidationError("User does not exist")
+        return user
+
+    def create(self, validated_data):
+        user_id = validated_data.pop("user_id")
+        user = User.objects.get(pk=user_id)
+        vacancy_response = VacancyResponse.objects.create(user=user, **validated_data)
+        return vacancy_response
 
 
 class VacancyResponseDetailSerializer(serializers.ModelSerializer):
diff --git a/vacancy/urls.py b/vacancy/urls.py
index a284ec22..530b5f57 100644
--- a/vacancy/urls.py
+++ b/vacancy/urls.py
@@ -15,7 +15,7 @@
 urlpatterns = [
     path("", VacancyList.as_view()),
     path("<int:pk>/", VacancyDetail.as_view()),
-    path("<int:pk>/responses/", VacancyResponseList.as_view()),
+    path("<int:vacancy_id>/responses/", VacancyResponseList.as_view()),
     path("responses/<int:pk>/", VacancyResponseDetail.as_view()),
     path("responses/<int:pk>/accept", VacancyResponseAccept.as_view()),
     path("responses/<int:pk>/decline", VacancyResponseDecline.as_view()),
diff --git a/vacancy/views.py b/vacancy/views.py
index e79b6e66..3b28e508 100644
--- a/vacancy/views.py
+++ b/vacancy/views.py
@@ -67,16 +67,18 @@ def get(self, request, *args, **kwargs):
 
     def get_queryset(self):
         return VacancyResponse.objects.get_vacancy_response_for_list_view().filter(
-            vacancy__id=self.kwargs["pk"]
+            vacancy__id=self.kwargs["vacancy_id"]
         )
 
-    def post(self, request, pk):
+    def post(self, request, vacancy_id):
         try:
-            request.data["user"] = self.request.user.id
-            request.data["vacancy"] = pk
+            request.data["user_id"] = self.request.user.id
+            request.data["vacancy"] = vacancy_id
         except AttributeError:
             pass
-        return self.create(request, pk)
+        serializer = self.get_serializer(data=request.data)
+        serializer.is_valid(raise_exception=True)
+        return self.create(request, vacancy_id)
 
 
 class VacancyResponseDetail(generics.RetrieveUpdateDestroyAPIView):