Stone Tech is seeking a Staff Software Engineer to join their GenAI Core team, focusing on the company's adoption of Generative AI. This role combines technical leadership with hands-on development in a dynamic fintech environment. The position involves working with a multifunctional team to develop and maintain a generative AI platform, supporting various company initiatives. The successful candidate will be responsible for defining and implementing standards, maintaining engineering excellence, and mentoring colleagues. The role requires expertise in both TypeScript/Node.js and Python, with a strong foundation in software engineering practices and cloud services. The team operates in an agile environment with connected discovery and delivery, emphasizing metrics-driven results and short validation cycles. Stone Tech offers a comprehensive benefits package and promotes a culture built on ownership, practical learning, transparency, teamwork, and customer focus. The company is transforming Brazil's payment industry by providing innovative solutions for entrepreneurs, making this an opportunity to contribute to significant technological and social impact.