Competitor Technology Analysis: Led market and technological trend research on “Novel Door Opening Systems," and "DM-P System" and completed a competitive analysis to recommend new features such as gesture door control and silent open/close while balancing cost and performance. Product Optimization: Identified non-compliant assembly operations causing signal attenuation and high rework rates in an export vehicle prototype, then coordinated amplifier bracket design optimization, saving > 100K CNY. User Preference Analysis: Identified key factors (positions and shapes) affecting door-handle ergonomics in BYD Seal. Leveraged human-machine simulation and user testing, a 5mm forward adjustment and concave groove were proposed to improve the comfortable threshold opening angle by 3° and user satisfaction by 4%. Database Construction: Built a cross-department mechanical layout database consisting of 6 key modules for multiple vehicle models and integrated it with the Product Lifecycle Management system for efficient data sharing and verification, reducing the average layout output time by 15 hours and development cycles by 20+ days.

Competitor Growth Strategy Analysis: Analyzed user growth strategies of key competitors (Fliggy, Ctrip), identifying Meituan's critical shortcomings, including lack of external traffic channels and premium benefits. Membership Benefits System Adjustment: Evaluated and adjusted the membership system by analyzing user proportions, upgrade rates, and benefits package utilization to re-prioritize benefits and introduce new welcome activities, raising tier upgrade rates by up to 3% and benefits usage by 10%. User Growth Metrics Approximation: Developed a North Star metrics monitoring system (GMV, upgrade rates, and benefit utilization rates) to quantify the effectiveness of our strategies, resulting in a 6% increase in active users.