Moderna, a pioneering biotech company revolutionizing medicine through mRNA technology, is seeking a Senior Software Engineer for their international business services hub in Warsaw, Poland. This role offers a unique opportunity to be part of a transformative team working on cutting-edge medical innovations. As a Senior Software Engineer, you'll architect and deliver full-stack web applications in a dynamic, agile environment, working with modern JavaScript frameworks and cloud-native infrastructure. The position requires expertise in frontend and backend development, with a focus on scalable solutions and best practices. You'll collaborate with product owners, lead technical implementations, and contribute to Moderna's digital transformation initiatives, including Generative AI integration. The company offers a hybrid work model (70% in-office), comprehensive benefits, and the chance to impact global health through technology. Moderna's culture emphasizes learning, innovation, and collaboration, making it an ideal environment for engineers passionate about making a difference in healthcare through technology. The role combines technical excellence with the opportunity to contribute to life-changing medical advancements.