diff --git a/aws/ci_build b/aws/ci_build
index 466f758acab55..8cb1e7d50aac1 100755
--- a/aws/ci_build
+++ b/aws/ci_build
@@ -162,11 +162,9 @@ def main
         ChatClient.message 'server operations', commit_url, color: 'gray', message_format: 'text'
         DevelopersTopic.set_dtp 'yes'
         InfraProductionTopic.set_dtp_commit GitHub.sha('production')
-        ChatClient.set_reminder(
-          'developers',
-          "@#{DevelopersTopic.dotd}",
-          "to check Zendesk in 2 hours"
-         )
+
+        # Schedule a reminder for the dotd to check Zendesk in 2 hours
+        Slack.remind(Slack.user_id(DevelopersTopic.dotd), Time.now.to_i + 7200, 'Reminder: check <https://codeorg.zendesk.com/agent/filters/44863373|Zendesk>')
 
         # Check hoc_mode and hoc_launch only on successful DTPs, so that we get about 1 reminder per
         # day to bring staging, test and production to the same hoc_mode and hoc_launch after a
diff --git a/bin/dotd b/bin/dotd
index 123a27aa0d114..082c7df9abec6 100755
--- a/bin/dotd
+++ b/bin/dotd
@@ -33,14 +33,15 @@ def check_for_cdo_keys
 
   puts <<-EOS.unindent
 
-    This script requires CDO.github_access_token, CDO.slack_token, and CDO.honeybadger_api_token and CDO.devinternal_db_writer.
+    This script requires CDO.github_access_token, CDO.slack_bot_token, and CDO.honeybadger_api_token and CDO.devinternal_db_writer.
 
     Create your API tokens from these pages:
 
       https://github.com/settings/tokens ('public_repo' permission)
-      https://api.slack.com/custom-integrations/legacy-tokens
       https://app.honeybadger.io/users/edit#authentication
 
+    The slack_bot_token can be found in the Shared-Engineering folder in LastPass, under DOTD Slack Bot Token.
+
     Please add them to your locals.yml and rerun the script.
     CDO.devinternal_db_writer should be pulled automatically from AWS Secrets Manager.
 
@@ -476,16 +477,6 @@ end
 def main
   check_for_cdo_keys
 
-  # auto-join Slack rooms where the DOTD might be @mentioned
-  # or need to affect the room topic.
-  Slack.join_room('developers')
-  Slack.join_room('deploy-status')
-  Slack.join_room('infra-staging')
-  Slack.join_room('infra-test')
-  Slack.join_room('infra-production')
-  Slack.join_room('infra-honeybadger')
-  Slack.join_room('levelbuilder')
-
   dotd_name = ENV['CDODEV_DOTD_NAME'] || ENV['USER']
   @logger.info("#{Time.new.strftime('%A, %B %d %Y')}: #{dotd_name} is DOTD")
 
diff --git a/config.yml.erb b/config.yml.erb
index dbd5d19dcee9d..ae8a42b4e3de8 100644
--- a/config.yml.erb
+++ b/config.yml.erb
@@ -197,6 +197,7 @@ slack_set_last_dtt_green_token:
 slack_start_build_token:
 slack_endpoint:                 !Secret
 slack_token:                    !Secret
+slack_bot_token:                !Secret
 slack_log_room:                 <%=env%>
 hip_chat_logging:               false
 # Logging endpoint used by broken link checker.
diff --git a/lib/cdo/chat_client.rb b/lib/cdo/chat_client.rb
index e91aa2710b792..d2a01eca9bad6 100644
--- a/lib/cdo/chat_client.rb
+++ b/lib/cdo/chat_client.rb
@@ -44,14 +44,6 @@ def self.message(room, message, options={})
     )
   end
 
-  # @param room [String] Name of the Slack channel to post  /remind to.
-  # @param recipient [String] Slack user to remind, include @ in the argument
-  # @param reminder [String] Message for the /remind commmand
-  def self.set_reminder(room, recipient, reminder)
-    message = recipient + " " + reminder
-    Slack.command(room, "remind", message)
-  end
-
   def self.snippet(message)
     Slack.snippet(CDO.slack_log_room, message)
   end
diff --git a/lib/cdo/slack.rb b/lib/cdo/slack.rb
index bb53f2408ea34..40ebf162a5636 100644
--- a/lib/cdo/slack.rb
+++ b/lib/cdo/slack.rb
@@ -1,6 +1,8 @@
+require 'uri'
 require 'net/http'
-require 'open-uri'
 require 'retryable'
+require 'json'
+require 'cdo/honeybadger'
 
 class Slack
   COLOR_MAP = {
@@ -17,7 +19,20 @@ class Slack
     'production' => 'infra-production'
   }.freeze
 
-  SLACK_TOKEN = CDO.slack_token.freeze
+  # Common channel name to ID mappings
+  CHANNEL_IDS = {
+    'developers' => 'C0T0PNTM3',
+    'deploy-status' => 'C7GS8NE8L',
+    'infra-staging' => 'C03CK8E51',
+    'infra-test' => 'C03CM903Y',
+    'infra-production' => 'C03CK8FGX',
+    'infra-honeybadger' => 'C55JZ1BPZ',
+    'levelbuilder' => 'C0T10H2HY',
+    'server-operations' => 'C0CCSS3PX'
+  }.freeze
+
+  SLACK_TOKEN = CDO.methods.include?(:slack_token) ? CDO.slack_token.freeze : nil
+  SLACK_BOT_TOKEN = CDO.methods.include?(:slack_bot_token) ? CDO.slack_bot_token.freeze : nil
 
   # Returns the user (mention) name of the user.
   # WARNING: Does not include the mention character '@'.
@@ -25,14 +40,21 @@ class Slack
   # @raise [ArgumentError] If the email does not correspond to a Slack user.
   # @return [nil | String] The user (mention) name for the Slack user.
   def self.user_name(email)
-    users_list = open("https://slack.com/api/users.list?token=#{SLACK_TOKEN}").
-      read
-    members = JSON.parse(users_list)['members']
+    members = post_to_slack("https://slack.com/api/users.list")['members']
+    raise "Failed to query users.list" unless members
     user = members.find {|member| email == member['profile']['email']}
     raise "Slack email #{email} not found" unless user
     user['name']
   end
 
+  def self.user_id(name)
+    members = post_to_slack("https://slack.com/api/users.list")['members']
+    raise "Failed to query users.list" unless members
+    user = members.find {|member| name == member['name']}
+    raise "Slack user #{name} not found" unless user
+    user['id']
+  end
+
   # @param channel_name [String] The channel to fetch the topic.
   # @return [String | nil] The existing topic, nil if not found.
   def self.get_topic(channel_name, use_channel_map = false)
@@ -43,25 +65,9 @@ def self.get_topic(channel_name, use_channel_map = false)
     channel_id = get_channel_id(channel_name)
     return nil unless channel_id
 
-    response = Retryable.retryable(on: [Errno::ETIMEDOUT, OpenURI::HTTPError], tries: 2) do
-      open(
-        'https://slack.com/api/conversations.info'\
-        "?token=#{SLACK_TOKEN}"\
-        "&channel=#{channel_id}"\
-      )
-    end
-
-    begin
-      parsed_response = JSON.parse(response.read)
-    rescue JSON::ParserError
-      return nil
-    end
-
-    unless parsed_response['ok']
-      return nil
-    end
-
-    replace_user_links(parsed_response['channel']['topic']['value'])
+    response = post_to_slack("https://slack.com/api/conversations.info?channel=#{channel_id}")
+    return nil unless response
+    replace_user_links(response['channel']['topic']['value'])
   end
 
   # @param channel_name [String] The channel to update the topic.
@@ -77,30 +83,26 @@ def self.update_topic(channel_name, new_topic, use_channel_map = false)
     channel_id = get_channel_id(channel_name)
     return false unless channel_id
 
-    response = open('https://slack.com/api/conversations.setTopic'\
-      "?token=#{SLACK_TOKEN}"\
-      "&channel=#{channel_id}"\
-      "&topic=#{new_topic}"
-    )
-    result = JSON.parse(response.read)
-    raise "Failed to update_topic, with error: #{result['error']}" if result['error']
-    result['ok']
+    url = "https://slack.com/api/conversations.setTopic"
+    payload = {"channel" => channel_id, "topic" => new_topic}
+    result = post_to_slack(url, payload)
+    return !!result
   end
 
   def self.replace_user_links(message)
     message.gsub(/<@(.*?)>/) {'@' + get_display_name($1)}
   end
 
+  # @param user_id [String] The user whose name you are looking for.
+  # @return [String] Slack 'display_name' if one is set, otherwise Slack 'name'.
+  #   Returns provided user_id if not found.
   def self.get_display_name(user_id)
-    response = open(
-      'https://slack.com/api/users.info'\
-      "?token=#{SLACK_TOKEN}"\
-      "&user=#{user_id}"\
-    ).read
+    response = post_to_slack("https://slack.com/api/users.info?user=#{user_id}")
+
     return user_id unless response
-    parsed_response = JSON.parse(response)
-    return user_id unless parsed_response['ok']
-    parsed_response['user']['profile']['display_name']
+    profile = response['user']['profile']
+    return profile['display_name'] unless profile['display_name'] == ""
+    response['user']['name']
   end
 
   # For more information about the Slack API, see
@@ -113,6 +115,7 @@ def self.get_display_name(user_id)
   #   color (optional): The color the post should be.
   # @return [Boolean] Whether the text was posted to Slack successfully.
   # WARNING: This function mutates params.
+  # NOTE: This function utilizes an incoming webhook, not the Slack token
   def self.message(text, params={})
     return false unless CDO.slack_endpoint
     params[:channel] = "\##{Slack::CHANNEL_MAP[params[:channel]] || params[:channel]}"
@@ -148,46 +151,31 @@ def self.message(text, params={})
     end
   end
 
-  # For more information see
-  # https://github.com/ErikKalkoken/slackApiDoc/blob/master/chat.command.md. NOTE This API is 'undocumented' and not part of the official Slack APIs.
-  # @param channel_name [String] Name of the Slack channel to post the command to.
-  # @param command [String] Command to execute, excluding the /.
-  # @param message [String] Optional text passed to the command.
-  # @return [Boolean] Whether the command was posted to Slack successfully.
-  def self.command(channel_name, command, message="")
-    channel_id = get_channel_id(channel_name)
-    response = open(
-      "https://slack.com/api/chat.command?channel=#{channel_id}"\
-      "&command=/#{command}"\
-      "&text=#{message}"\
-      "&token=#{SLACK_TOKEN}"
-    )
-
-    result = JSON.parse(response.read)
-    raise "Failed to post command with: #{result['error']}" if result['error']
-    result['ok']
+  # Bot tokens are unable to post to reminders.add or chat.command, so we will mimic the functionality of a slack reminder
+  #  by scheduling a DM to the user at a specific time.
+  # @param recipient_id [String] Slack ID of user to message.
+  # @param time [String] Unix timestamp of the time the message should be sent.
+  # @param message [String] Text to be sent in the scheduled message.
+  def self.remind(recipient_id, time, message)
+    result = post_to_slack("https://slack.com/api/chat.scheduleMessage", {"channel" => recipient_id, "post_at" => time, "text" => message})
+    return !!result
   end
 
+  # @param room [String] Channel name or id to post the snippet.
+  # @param text [String] Snippet text.
   def self.snippet(room, text)
     # omit leading '#' when passing channel names to this API
     channel = CHANNEL_MAP[room] || room
-    open('https://slack.com/api/files.upload'\
-      "?token=#{SLACK_TOKEN}"\
-      "&content=#{URI.escape(text)}"\
-      "&channels=#{channel}"
-    )
+    result = post_to_slack("https://slack.com/api/files.upload?channels=#{channel}&content=#{URI.escape(text)}")
+    return !!result
   end
 
+  # @param name [String] Name of the Slack channel to join.
   def self.join_room(name)
-    response = open(
-      'https://slack.com/api/conversations.join'\
-      "?token=#{SLACK_TOKEN}"\
-      "&channel=#{get_channel_id(name)}"
-    )
-
-    result = JSON.parse(response.read)
-    raise "Failed to join_room, with error: #{result['error']}" if result['error']
-    result['ok']
+    channel = get_channel_id(name)
+    return false unless channel
+    result = post_to_slack("https://slack.com/api/conversations.join", {"channel" => channel})
+    return !!result
   end
 
   # Returns the channel ID for the channel with the requested channel_name.
@@ -195,17 +183,14 @@ def self.join_room(name)
   # @return [nil | String] The Slack channel ID for the channel, nil if not
   #   found.
   private_class_method def self.get_channel_id(channel_name)
+    return CHANNEL_IDS[channel_name] if CHANNEL_IDS[channel_name]
+
     raise "CDO.slack_token undefined" if SLACK_TOKEN.nil?
     # Documentation at https://api.slack.com/methods/channels.list.
-    slack_api_url = "https://slack.com/api/conversations.list"\
-      "?token=#{SLACK_TOKEN}&limit=1000&types=public_channel&exclude_archived=true"
-    channels = open(slack_api_url).read
-    begin
-      parsed_channels = JSON.parse(channels)
-    rescue JSON::ParserError
-      return nil
-    end
-    return nil unless parsed_channels['channels']
+    url = "https://slack.com/api/conversations.list?limit=1000&types=public_channel&exclude_archived=true"
+    parsed_channels = post_to_slack(url)
+    return nil unless parsed_channels && parsed_channels['channels']
+
     parsed_channels['channels'].each do |parsed_channel|
       return parsed_channel['id'] if parsed_channel['name'] == channel_name
     end
@@ -226,4 +211,56 @@ def self.join_room(name)
       gsub(/<\/a>/, '>').
       gsub(/<br\/?>/, "\n")
   end
+
+  private_class_method def self.post_to_slack(url, payload = nil)
+    if SLACK_BOT_TOKEN && SLACK_BOT_TOKEN != ''
+      token = SLACK_BOT_TOKEN
+    else
+      # TODO: Remove after deprecating legacy SLACK_TOKEN
+      opts = {
+        error_class: "Slack integration [warn]",
+        error_message: "Using legacy token",
+        context: {url: url, payload: payload}
+      }
+      Honeybadger.notify_cronjob_error opts
+
+      token = SLACK_TOKEN
+    end
+
+    headers = {
+      "Content-type" => "application/json; charset=utf-8",
+      "Authorization" => "Bearer #{token}"
+    }
+
+    uri = URI(url)
+    https = Net::HTTP.new(uri.host, uri.port)
+    https.use_ssl = true
+    req = Net::HTTP::Post.new(url, headers)
+    req.body = payload.to_json if payload
+
+    begin
+      res = https.request(req)
+      parsed_res = JSON.parse(res.body)
+      response = parsed_res
+
+      unless response['ok']
+        opts = {
+          error_class: "Slack integration [error]",
+          error_message: parsed_res['error'],
+          context: {url: url, payload: payload, response: parsed_res}
+        }
+        Honeybadger.notify_cronjob_error opts
+        response = false
+      end
+    rescue Exception => error
+      opts = {
+        error_class: "Slack integration [error]",
+        error_message: error,
+        context: {url: url, payload: payload}
+      }
+      Honeybadger.notify_cronjob_error opts
+      response = false
+    end
+    response
+  end
 end
diff --git a/lib/test/cdo/test_slack.rb b/lib/test/cdo/test_slack.rb
index 67a03c7ce6d7b..732de88b16804 100644
--- a/lib/test/cdo/test_slack.rb
+++ b/lib/test/cdo/test_slack.rb
@@ -14,39 +14,37 @@ def setup
   end
 
   def test_get_topic
-    Slack.expects(:open).returns(
-      stub(
-        read: {
-          'ok' => true,
-          'channel' => {
-            'topic' => {
-              'value' => FAKE_TOPIC
-            }
+    Slack.expects(:post_to_slack).returns(
+      {
+        'ok' => true,
+        'channel' => {
+          'topic' => {
+            'value' => FAKE_TOPIC
           }
-        }.to_json
-      )
+        }
+      }
     )
     actual_topic = Slack.get_topic FAKE_CHANNEL
     assert_equal FAKE_TOPIC, actual_topic
   end
 
   def test_get_topic_with_error_response
-    Slack.expects(:open).returns(stub(read: {'ok' => false}.to_json))
+    Slack.stubs(:post_to_slack).returns(false)
     assert_nil Slack.get_topic FAKE_CHANNEL
   end
 
   def test_update_topic
-    Slack.expects(:open).returns(stub(read: {'ok' => true}.to_json))
+    Slack.stubs(:post_to_slack).returns({'ok' => true})
     assert Slack.update_topic(FAKE_CHANNEL, FAKE_TOPIC)
   end
 
   def test_join_room
-    Slack.expects(:open).returns(stub(read: {'ok' => true}.to_json))
+    Slack.stubs(:post_to_slack).returns({'ok' => true})
     assert Slack.join_room(FAKE_CHANNEL)
   end
 
   def test_update_topic_with_error_response
-    Slack.expects(:open).returns(stub(read: {'ok' => false}.to_json))
+    Slack.stubs(:post_to_slack).returns(false)
     refute Slack.update_topic(FAKE_CHANNEL, FAKE_TOPIC)
   end