Senior/Staff Web Platform Engineer

Job Overview

Perplexity AI is seeking 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.

Key Responsibilities

• Optimize performance for critical web flows (search, answer rendering, browsing), with a focus on improving application response speed and perceived latency.


• Design and implement solutions for customizable user interfaces and experience components across Perplexity and Comet.


• Develop and improve frontend alerting and monitoring systems to ensure reliability and rapid incident response for web experiences.


• Build self-serve capabilities and primitives that allow feature teams to ship frontend components and flows quickly without deep platform expertise.


• Support developer productivity initiatives to improve the ergonomics of web development at Perplexity (tooling, CI/CD, local dev workflows, documentation).


• Contribute to upgrading and maintaining core web technologies (e.g., React, TypeScript, build tooling) used across Perplexity’s web stack.


• Collaborate closely with product, design, search, infra, and mobile teams to deliver cohesive, performant web experiences end to end.


• Participate in planning and roadmap discussions to ensure appropriate scoping, sequencing, and engineering allocation for platform work.

About Perplexity

Perplexity AI’s mission is to build the world’s best answer engine and AI-native browser that make finding and understanding information effortless for everyone. The team is a fast-growing group of researchers, engineers, designers, and business leaders working together to create safe, reliable, and delightful AI products used by millions of people and organizations.

Benefits

Full-time U.S. employees enjoy a comprehensive benefits program including equity, health, dental, vision, retirement, fitness, commuter and dependent care accounts, and more. International employees enjoy a comprehensive benefits program tailored to their region of residence.