public class ThrowJob : IJob
    {
       public async Task Execute(IJobExecutionContext context)
        {
            try
            {     
                 throw new Exception("RaiseException");                 
            }
            catch (Exception ex)
            {        

                if (context.Trigger.Key.Name == "ErrRefire")
                    return;
                SimpleTriggerImpl retryTrigger = new SimpleTriggerImpl("ErrRefire");
                retryTrigger.Description = "RetryTrigger";
                retryTrigger.RepeatCount = 5;
                retryTrigger.RepeatInterval = new TimeSpan(0, 0, 10);             
                retryTrigger.JobKey = context.JobDetail.Key;   //connect trigger with current job      
                await context.Scheduler.ScheduleJob(retryTrigger);
            }           
        }
    }