diff --git a/app/models/profile_suggestion.rb b/app/models/profile_suggestion.rb
index dfd504c..ebeedca 100644
--- a/app/models/profile_suggestion.rb
+++ b/app/models/profile_suggestion.rb
@@ -157,4 +157,22 @@ class ProfileSuggestion < ActiveRecord::Base
     self.save
   end
 
+  def self.generate_all_profile_suggestions
+    Delayed::Job.enqueue(ProfileSuggestion::GenerateAllJob.new) unless ProfileSuggestion::GenerateAllJob.exists?
+  end
+
+  def self.generate_profile_suggestions(person_id)
+    Delayed::Job.enqueue ProfileSuggestionsJob.new(person_id) unless ProfileSuggestionsJob.exists?(person_id)
+  end
+
+  class GenerateAllJob
+    def self.exists?
+      Delayed::Job.by_handler("--- !ruby/object:ProfileSuggestion::GenerateAllJob {}\n").count > 0
+    end
+
+    def perform
+      Person.find_each {|person| ProfileSuggestion.generate_profile_suggestions(person.id) }
+    end
+  end
+
 end
diff --git a/config/schedule.rb b/config/schedule.rb
index c2c7f45..dec2564 100644
--- a/config/schedule.rb
+++ b/config/schedule.rb
@@ -26,3 +26,7 @@ set :output, "log/cron.log"
 every 1.minute do
   runner "SearchTerm.calculate_scores"
 end
+
+every 90.days do
+  runner "ProfileSuggestion.generate_all_profile_suggestions"
+end
diff --git a/lib/profile_suggestions_job.rb b/lib/profile_suggestions_job.rb
index 07bd874..fc49507 100644
--- a/lib/profile_suggestions_job.rb
+++ b/lib/profile_suggestions_job.rb
@@ -1,5 +1,13 @@
 class ProfileSuggestionsJob < Struct.new(:person_id)
 
+  def self.exists?(person_id)
+    !find(person_id).empty?
+  end
+
+  def self.find(person_id)
+    Delayed::Job.by_handler("--- !ruby/struct:ProfileSuggestionsJob\nperson_id: #{person_id}\n")
+  end
+
   def perform
     begin
       person = Person.find(person_id)
--
libgit2 0.21.2