diff --git a/backend/apps/slack/constants.py b/backend/apps/slack/constants.py
index c24a73b12..3f6dcd1d6 100644
--- a/backend/apps/slack/constants.py
+++ b/backend/apps/slack/constants.py
@@ -28,5 +28,5 @@
 
 FEEDBACK_CHANNEL_MESSAGE = (
     f"💬 You can share feedback on your {NEST_BOT_NAME} experience "
-    f"in the <#{OWASP_PROJECT_NEST_CHANNEL_ID}|project-nest> channel.{NL}"
+    f"in the <{OWASP_PROJECT_NEST_CHANNEL_ID}|project-nest> channel.{NL}"
 )
diff --git a/backend/apps/slack/events/member_joined_channel/catch_all.py b/backend/apps/slack/events/member_joined_channel/catch_all.py
index f76a9781c..56bf04635 100644
--- a/backend/apps/slack/events/member_joined_channel/catch_all.py
+++ b/backend/apps/slack/events/member_joined_channel/catch_all.py
@@ -1,6 +1,7 @@
 """Slack member joined any other channel handler."""
 
 from apps.slack.apps import SlackConfig
+from apps.slack.constants import OWASP_CONTRIBUTE_CHANNEL_ID, OWASP_GSOC_CHANNEL_ID
 
 
 def catch_all_handler(event, client, ack):  # noqa: ARG001
@@ -9,4 +10,13 @@ def catch_all_handler(event, client, ack):  # noqa: ARG001
 
 
 if SlackConfig.app:
-    SlackConfig.app.event("member_joined_channel")(catch_all_handler)
+    SlackConfig.app.event(
+        "member_joined_channel",
+        matchers=[
+            lambda event: f"#{event['channel']}"
+            not in {
+                OWASP_CONTRIBUTE_CHANNEL_ID,
+                OWASP_GSOC_CHANNEL_ID,
+            }
+        ],
+    )(catch_all_handler)
diff --git a/backend/apps/slack/events/member_joined_channel/contribute.py b/backend/apps/slack/events/member_joined_channel/contribute.py
index 14f559299..7f92626f1 100644
--- a/backend/apps/slack/events/member_joined_channel/contribute.py
+++ b/backend/apps/slack/events/member_joined_channel/contribute.py
@@ -74,11 +74,7 @@ def contribute_handler(event, client, ack):
 
 
 if SlackConfig.app:
-
-    def check_contribute_handler(event):
-        """Check if the event is a member_joined_channel in #contribute."""
-        return f"#{event['channel']}" == OWASP_CONTRIBUTE_CHANNEL_ID
-
-    SlackConfig.app.event("member_joined_channel", matchers=[check_contribute_handler])(
-        contribute_handler
-    )
+    SlackConfig.app.event(
+        "member_joined_channel",
+        matchers=[lambda event: f"#{event['channel']}" == OWASP_CONTRIBUTE_CHANNEL_ID],
+    )(contribute_handler)
diff --git a/backend/apps/slack/events/member_joined_channel/gsoc.py b/backend/apps/slack/events/member_joined_channel/gsoc.py
index 94f935c7b..6b83e0a13 100644
--- a/backend/apps/slack/events/member_joined_channel/gsoc.py
+++ b/backend/apps/slack/events/member_joined_channel/gsoc.py
@@ -51,9 +51,7 @@ def gsoc_handler(event, client, ack):
 
 
 if SlackConfig.app:
-
-    def check_gsoc_handler(event):
-        """Check if the event is a member_joined_channel in #gsoc."""
-        return f"#{event['channel']}" == OWASP_GSOC_CHANNEL_ID
-
-    SlackConfig.app.event("member_joined_channel", matchers=[check_gsoc_handler])(gsoc_handler)
+    SlackConfig.app.event(
+        "member_joined_channel",
+        matchers=[lambda event: f"#{event['channel']}" == OWASP_GSOC_CHANNEL_ID],
+    )(gsoc_handler)