Non-technical skills are crucial for success in software development, complementing technical abilities and enhancing efficiency and effectiveness. Key non-technical skills include communication, task prioritization, customer requirement analysis, organization, creativity, insight provision, a willingness to explore, and staying updated with new technologies. Effective communication is vital for collaborative projects, while prioritization and organization ensure timely completion. Understanding customer needs and offering insights are essential for creating user-centered software. Creativity and curiosity drive innovation and long-term success, and staying informed about technological advancements helps developers adapt to evolving industry standards. These skills are foundational for becoming a successful software developer or tester, as emphasized by Arnab Roy Chowdhury, a UI developer and experienced blogger.