delayed_job_airbrake.rb

module Delayed
  module Plugins
    class Airbrake < Plugin
      module Notify
        def error(job, error)
          ::Airbrake.notify_or_ignore(error)
          super
        end
      end

      callbacks do |lifecycle|
        lifecycle.before(:invoke_job) do |job|
          payload = job.payload_object
          payload = payload.object if payload.is_a? Delayed::PerformableMethod
          payload.extend Notify
        end
      end
    end
  end
end

Delayed::Worker.plugins << Delayed::Plugins::Airbrake