diff --git a/jobposting/models.py b/jobposting/models.py
index 7a40ece..af68fba 100644
--- a/jobposting/models.py
+++ b/jobposting/models.py
@@ -28,6 +28,30 @@ class JobOffer(models.Model):
         ('D', 'Inny status')
     ]
 
+    category_choices = [
+        ('A', 'Budownictwo'),
+        ('B', 'IT'),
+        ('C', 'Elektryka i Elektronika'),
+        ('D', 'Produkcja'),
+        ('E', 'Mechanika i konstrukcje'),
+        ('F', 'Chemia i Biotechnologia'),
+        ('G', 'Biomedyczne'),
+        ('H', 'Automatyka i Robotyka'),
+        ('I', 'Logistyka i Transport'),
+        ('J', 'Sprzedaż'),
+        ('Z', 'Inne')
+    ]
+
+    experience_levels = [
+        ('A', 'Stażysta'),
+        ('B', 'Junior'),
+        ('C', 'Mid'),
+        ('D', 'Senior'),
+        ('E', 'Lead'),
+        ('F', 'Manager'),
+        ('G', 'Inne'),
+    ]
+
     posting_option = models.CharField(max_length=1, choices=posting_options)
     company_name = models.CharField(max_length=255)
     name = models.CharField(max_length=255)
@@ -40,8 +64,10 @@ class JobOffer(models.Model):
     vat_number = models.CharField(max_length=10)
     created_at = models.DateTimeField(default=timezone.now)
     status = models.CharField(max_length=1, choices=status_choices, default='W')
-    status_paid = models.CharField(max_length=1, choices=paid_status, default='N')
-    category = models.CharField(max_length=255, null=True, blank=True)
+    status_paid = models.CharField(max_length=1, choices=paid_status, 
+                                   default='N')
+    category = models.CharField(max_length=1, choices=category_choices, 
+                                default='G')
     expiration_date = models.DateTimeField(null=True, blank=True)
     image = models.CharField(max_length=255, null=True, blank=True)
     experience_level = models.CharField(max_length=255, null=True, blank=True)