This question may also be asked that what are your biggest achievements? Or what are you most proud of?
You should discuss only work-related achievements. Try to pick a recent achievement.
Possible Answer 1
“My greatest achievement so far in my career would probably be winning the Manager of the Year award last year.”
Possible Answer 2
“My biggest accomplishment is overcoming my fear of failure. It gives me a complete sense of living and makes me more confident.”
Possible Answer 3
“I experienced my greatest achievement when I worked as a website manager for an entertainment outlet. My team was under pressure and the website was struggling at the time, and I was tasked with forming a strategy to increase traffic.