Hello there,
Some of the opportunities after diploma in food safety are

• Quality Control Officer
• Quality Assurance Management Professionals
• Food Safety Officer in Regulatory bodies
• Food Auditor in certification and Inspection bodies
• Trainer/Counsellor in Food Safety & Quality Management Systems
• Self Employed food certifying/auditing prprofessional.

Hope it helps you.

Hello there
After diploma in food safety you can either look for job opportunities or pursue higher education. You can have job posts like Quality Control Officer or Quality Assurance/ Management professionals in food /hospitality/ retail industry and laboratories. You can also pursue with your PG Diploma in Food Safety. It will increase your job opportunities.
Hope this information helps you.
Good luck!!