• Build and prototype new features and solutions to tackle complex technical challenges. • Develop and maintain metrics to monitor email delivery rates and sender reputation, and diagnose service-level issues. • Monitor email industry standards, trends, and emerging threats, and propose improvements to strengthen delivery, reputation, and spam resilience. • Develop, test, and evolve the code architecture to ensure scalability, maintainability, and robustness. • Conduct code reviews to ensure adherence to quality standards and best practices, and contribute to technical strategy and architectural decision-making. • Along with our designers and product leads, build and deploy prototypes and experiments to improve workflows, conversions, and privacy-respecting analytics capabilities. • Evaluate and implement systems and improvements across security, logging, performance, and accessibility. • Support the stability and reliability of our services, including participation in a shared on-call rotation.