Senior/Staff Web Platform Engineer

Perplexity is looking for experienced Software Engineers to join a new Web Platform team. This team is critical to the development infrastructure behind Perplexity’s web-based products, including the core answer experience and the Comet AI browser surfaces. You will be responsible for building and maintaining the systems that enable Perplexity’s product teams to deliver high‑quality, performant single‑page web applications across desktop, mobile web, and the Comet browser. You will work on initiatives such as DevProd infrastructure for our SPAs, build tooling and CI pipelines, performance optimization for query and browsing flows, and migrations and refactors of core web surfaces. You will own and evolve our frontend platform, including build tools, linting and type‑safety workflows, and improved alerting and monitoring systems, to ensure fast, reliable, and consistent web experiences across multiple product surfaces.