A simple and effective formula for structuring your response: present, past, future.
Present: Talk a little bit about what your current role is, the scope of it, and perhaps a big recent accomplishment.
Past: Tell the interviewer how you got there and/or mention previous experience that’s relevant to the job and company you’re applying for.
Future: Segue into what you’re looking to do next and why you’re interested in this gig (and a great fit for it, too).