As a Senior Engineer, you will own the technical health, performance, and architectural evolution of mission-critical web application frontends. You will act as the primary anchor for complex React architectures, crafting scalable UI components, optimizing frontend performance, and orchestrating seamless API integrations. This role requires an autonomous mindset to navigate diverse codebases, establish modern frontend standards, and drive technical excellence across the delivery lifecycle. Your success is measured by application speed, interface reliability, proactive management of technical debt, and your ability to mentor and elevate the engineering team.