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Full-Stack Engineer - Comet

Perplexity

Perplexity

San Francisco, CA, USA
USD 150k-300k / year + Equity
Posted on Nov 5, 2025

Location

San Francisco

Employment Type

Full time

Location Type

Hybrid

Department

Mobile

Perplexity AI is looking for an experienced Full-Stack Engineer to join our small team revolutionizing the way people browse the Internet. You will be responsible for building and expanding Comet - Perplexity’s new browser.

The ideal candidate should have strong programming skills, an interest in AI and large language models, and a passion for delivering a great UX backed by a quality UI.

Responsibilities

  • Develop a performant mobile browser that millions of users around the world enjoy using.

  • Ensure a high craft and quality bar, both in the user experience and the developer experience.

  • Work closely with design teams to design fast and intuitive UI.

  • Collaborate with data science and machine learning teams to instrument, analyze, and improve the end-to-end experience.

  • Work with infrastructure and QA teams on deployment processes, including testing, release, and monitoring.

Requirements

  • 4+ years industry experience

  • Expertise in TypeScript and top frameworks

  • Expertise in Git and TypeScript building tools

  • Strong Javascript fundamentals and a proven track record of working with a modern frontend stack

  • Enjoys the craft of building nice UI, creating a good UX, and writing reusable and testable code

  • Understands low-level intricacies, and knows how to profile and measure app performance and speed

  • Comfortable working with a small, fast-moving team, and must be willing to dive in and take ownership

  • A passion for shipping

  • (Bonus) Experience with Android or iOS

  • (Bonus) Experience building custom Javascript native hooks

Our cash compensation range for this role is $150,000 - $300,000.

Final offer amounts are determined by multiple factors, including, experience and expertise, and may vary from the amounts listed above.

Equity: In addition to the base salary, equity may be part of the total compensation package.
Benefits: Comprehensive health, dental, and vision insurance for you and your dependents. Includes a 401(k) plan.