The interviewer doesn't want your life history; they want your work story. Review achievements and relevant experience.
I started out as a product manager at a tech company, where I helped develop their mobile app. From there, I moved on to a start-up where I supervised the product team and really worked on my management skills. Now I'm excited to join a fast-paced, innovative product team where I can showcase what I've learned.
Focus on your greatest strengths and relate them directly to the position requirements.
I've always been a strong writer and researcher, and I share your passion for green technology. I wrote for my college newspaper and focused on the latest research in sustainability. Once I graduated, I interned for a clean technology non-profit, where I did some grant writing. When I saw this position open up with your organization, I jumped at the opportunity.