diff --git a/jobposting/serializers.py b/jobposting/serializers.py
index 2627200..335cf7b 100644
--- a/jobposting/serializers.py
+++ b/jobposting/serializers.py
@@ -2,6 +2,22 @@ from rest_framework import serializers
 from jobposting.models import JobListing, SkillLevels, CompanyLogo, Skill
 from core.models import MyUser, AnonymousUserData
 
+class SkillLevelsField(serializers.Field):
+    def to_representation(self, value):
+        # Konwersja do formatu wyjściowego
+        return {skill_level.skill_id.skill_name: skill_level.skill_level for skill_level in value.all()}
+
+    def to_internal_value(self, data):
+        # Konwersja z formatu wejściowego
+        skill_levels = []
+        for skill_name, level in data.items():
+            try:
+                skill = Skill.objects.get(skill_name=skill_name)
+            except Skill.DoesNotExist:
+                raise serializers.ValidationError(f"Skill with name '{skill_name}' does not exist.")
+            skill_levels.append({'skill_id': skill.id, 'skill_level': level})
+        return skill_levels
+
 class MyUserSerializer(serializers.ModelSerializer):
     class Meta:
         model = MyUser
@@ -22,7 +38,7 @@ class SkillLevelsSerializer(serializers.ModelSerializer):
 class JobListingSerializer(serializers.ModelSerializer):
     created_by = MyUserSerializer(read_only=True)
     anonymous_user_data = AnonymousUserDataSerializer(read_only=True)
-    skillLevels = SkillLevelsSerializer(read_only=True)
+    skill_levels = SkillLevelsField()
 
     class Meta:
         model = JobListing
@@ -35,10 +51,18 @@ class JobListingSerializer(serializers.ModelSerializer):
             'anonymous_user_data' 
         ]
 
+    def create(self, validated_data):
+        skill_levels_data = validated_data.pop('skill_levels', [])
+        job_listing = JobListing.objects.create(**validated_data)
+        for skill_data in skill_levels_data:
+            skill_level = SkillLevels.objects.create(**skill_data)
+            job_listing.skillLevels.add(skill_level)
+        return job_listing
+    
 class CompanyLogoSerializer(serializers.ModelSerializer):
     class Meta:
         model = CompanyLogo
-        fields = ['id', 'company_logo']
+        fields = ['id', 'company_nane','company_logo']
 
 class SkillSerializer(serializers.ModelSerializer):
     class Meta: