As a Senior Core Infrastructure Engineer, you will design and develop major new features within existing systems, playing a key role in driving engineering excellence. You'll help elevate development practices, operational efficiency, team ownership, and mentoring culture. You may also collaborate with teams across the organization. You will write secure, maintainable, and robust code along with comprehensive tests. You'll lead the design and implementation of features and subsystems, ensuring their operational readiness and excellence. You will actively participate in planning and risk mitigation for systems and services across the organization. You'll work independently on most projects, occasionally requiring guidance in areas that demand deep industry experience—such as designing secure, high-performance, scalable systems or managing complex cross-team dependencies. You'll frequently identify and resolve issues without needing assistance, lead root cause analysis efforts, and recommend effective solutions. You'll also build new metrics and dashboards to enhance visibility and situational awareness. Additionally, you'll identify and implement improvements that reduce operational overhead, increase availability, improve compliance with organizational standards, and minimize technical debt.