As a full-stack product engineer, one of the most persistent challenges I face is managing performance bottlenecks that arise between frontend, backend, and infrastructure. While we often optimize individual layers, true efficiency demands a holistic approach. In this post, I’ll walk through a common bottleneck scenario—slow API responses impacting frontend rendering—and share practical solutions. Profiling the Bottleneck: Start with robust monitoring tools—like New Relic or Chrome DevTo...