Your question is Strengths and Weaknesses. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
What are your strengths and weaknesses, and how do leadership fit in?
Explain which strengths help you contribute as a software engineer, which weakness you are actively improving, and how you demonstrate leadership in practice. Use a specific past example where possible, and describe the actions, outcome, and lesson learned.