Question: what to do after msc in biotechnology?
Answer: Option #1: Pursue higher studies in Biotech and Life Sciences.
Option #2: Study Ph.D. ... 
Option #3: Get a job in Research and Development (R&D)
Look out for Top R&D Jobs Here.
Option #4: Teach in your favorite Organization/university.
Option #5: Get a job in Intellectual Property Research and Patenting.