Describe a time when you faced a challenging problem in your team project. How did you approach it, and what was the outcome? Use the STAR method to structure your response.

In one of my recent projects, our team faced a major blocker while integrating a new payment service. **Situation:** We had a tight deadline as we were launching a new feature. **Task:** My task was to coordinate the integration with our backend system, which was complex due to varying API structures. **Action:** I organized a focused brainstorming session to identify the gaps and enlisted help from two other engineers for parts that were not clear to me. We divided the work, set up clear timelines, and had regular check-ins. **Result:** We successfully integrated the service and went live on schedule, which improved payment processing speed by 25% and received positive feedback from our users.