- National Park Service (Concord, MA)
- …and hours worked per week on your resume. To qualify for this position at the GS- 7 grade level, you must possess at least one of the following minimum ... such as biology, chemistry, statistics, entomology, animal husbandry, botany, physics , agriculture, or mathematics. At least 6 semester hours...and one will be filled at the at the GS- 7 grade level. Click here for the… more