Sam Costello shares his career journey and insights on reinventing oneself to achieve success in sales and leadership roles spanning banking, top tech companies, and startups. Influenced by his father and grandfather's sales backgrounds, Sam earned a finance degree but ensured his first job involved sales. Early days working for his brother's landscaping business shaped Sam's customer-first mindset. This focus on customer success became central to his approach. A chance encounter opened Sam's eyes to tech sales. He pivoted to CA Technologies and learned enterprise software sales. Sam credits CA with providing his sales foundation. Major successes followed at Oracle, including a $30 million deal. But it was a conversation with that client's CIO that sparked Sam's interest in startups. He joined Perfecto Mobile and embraced mentorship from sales gurus Keith Butler and Rob Watson. Their MEDDIC mindset approach to sales transformed Sam's perspective to always focus on customer success. Sam stresses the importance of seeking feedback and remaining coachable to drive continual growth. Even today, he focuses on enabling his team. After Perfecto, Sam saw joining Harness and its mission as his next opportunity to make an impact. Though Sam remains dedicated to driving Harness's success, his broader purpose is helping people through work and philanthropy. He may start a foundation someday. For now, building something great at Harness motivates him. Key Takeaways: - Start with the customer's needs to drive success - Pivoting into new opportunities can unlock potential - Embrace mentorship from sales experts to evolve - Remain coachable and seek feedback to grow - Find purpose beyond your company's mission - Take risks to reinvent yourself throughout your career Sam's story provides inspiration for achieving success by putting customers first, leveraging mentorship, and continually reinventing your career. His insights apply to sales and beyond. It's a must watch!