what is series and grade for government jobs
The job series, GS-0303, is for the job title clerk and assistants. General Service vs. Wage Grade. Each job series is associated with an Occupational Group for white-collar jobs or Occupational Family for blue-collar jobs.
Each occupational general schedule (GS) group is further subdivided into specific numerical codes called Job Series (for example: GS-856, Electronics Technician, GS-318, Secretary Series, etc.). The Wage Grade (WG) Trades and Labor Schedule offers an additional 36 occupational families; WG-2500 through WG-9000.