What is the best way to find the best job basing on education level on chemical and microbiological analysis of water and food?

question is that best way to find job is surf through internet, Linked in build network with colleagues 

Learn skill to test all these listed parameters Chemical parameter of water involves, Metallic contaminants, pesticide contaminants, dissolved salt, Calcium and magnesium (total hardness) , pH etc

Organoleptic characters are smell, odour, color

Microbiological involves E.coli, Total coliform 

Refer IS 10500:2012 standard for exact parameters

- For water , TDS , PH, Titratable acidity  going to check.

- For food sensory & physical evaluation tests going to do primary level

then for microbial tests.