Core Viewpoint - The article highlights the remarkable journey and technical prowess of Cai Jingxian, also known as "Duolong," a legendary figure in Alibaba's history, emphasizing his contributions to the development of Taobao and his status as a revered technical expert within the company [2][3][4]. Group 1: Technical Expertise - Duolong is regarded as a unique talent at Alibaba, with unparalleled problem-solving abilities, often resolving issues that stumped entire teams [4][5]. - His technical contributions include the development and maintenance of Taobao's search engine, file systems, and various middleware, showcasing his capability to handle complex projects single-handedly [18][19]. - Duolong's approach to problem-solving involves deep dives into source code, demonstrating his passion for technology and commitment to finding solutions [4][21]. Group 2: Personal Background - Born in a rural family in Zhejiang Province, Duolong's early education was marked by a strong interest in mathematics and a fascination with computers, which laid the foundation for his future career [8][9]. - Despite not being formally trained in computer science, his curiosity and self-driven learning led him to excel in technology [7][8]. Group 3: Career Development - Duolong was one of the early programmers at Taobao, joining a secretive team tasked with developing the platform to compete with eBay [10][11]. - His commitment to coding and problem-solving earned him a reputation as a go-to person for technical challenges within the company [12][14]. Group 4: Recognition and Impact - Duolong's achievements led to his selection as an Alibaba partner, a prestigious position that reflects his influence and contributions to the company [25]. - His estimated wealth reached 2.6 billion RMB, highlighting the financial success that accompanied his technical expertise [26]. Group 5: Insights on Becoming a Technical Expert - Duolong emphasizes that becoming a top technical expert requires dedication, continuous learning, and a willingness to tackle challenges head-on [27]. - He advocates for the importance of problem-solving and refining one's skills through practice and experience [27][28].