Hello aspirant,

These are the career options that you can be after you complete B.Tech in Biotechnology-

• Research Scientist
• Lecturer
• Private jobs
• IT Jobs
• Biotechnologist
• Researcher
• Government jobs

Also you can have higher studies in this following list of fields-

• Drug and Pharmaceutical Research
• Food processing
• Bio processing industries
• Laboratories Chemicals
• Environmental Control
• Waste Management
• Energy

Hope, this answer helps you.