Sr. Software Engineer, Web Platform

Pinterest Pinterest · Consumer · Toronto, ON · Data Engineering

Senior Software Engineer on the Web Platform Team at Pinterest, responsible for building and improving the web platform that powers Pinterest.com for hundreds of millions of users. This role involves improving foundational web architecture, developer experience, builds, CI/CD, and testing capabilities. A key aspect is leveraging AI agents to accelerate large-scale migrations, automate engineering tasks, and build agent-powered workflows to improve developer productivity and confidence.

What you'd actually do

  1. Build the web platform that powers Pinterest.com for hundreds of millions of users - and the frameworks and tooling that empower hundreds of engineers to build it.
  2. Improve foundational web architecture, DevEx, builds, CI/CD, and testing capabilities to help developers work more effectively.
  3. Identify site-wide challenges; propose, test, and ship solutions.
  4. Champion and drive large-scale, cross-functional initiatives that improve the Web platform.
  5. Raise web stability, scalability, performance, and accessibility by implementing best-in-class web development standards.
  6. Supercharge the web development lifecycle with AI agents: accelerating large-scale migrations, automating repetitive engineering tasks, and building agent-powered workflows that let developers ship faster with higher confidence.
  7. Mentor team members and participate actively in technical design and code reviews and architectural decisions.

Skills

Required

  • 5+ years of experience in Web development
  • deep understanding of JavaScript, CSS, DOM, HTTP protocol and how the web works
  • Expertise with technologies such as React, Redux (or other state management solutions), Relay, GraphQL, TypeScript, Jest and React Testing Library
  • Good knowledge of build tools such as Webpack, Rspack, or Vite
  • Familiarity with Node.js, server-side rendering techniques, and frameworks such as Next.js or Remix
  • Track record of delivering large, cross-functional projects across multiple organizations and being a champion of developer experience, performance and quality
  • Strong written and verbal communication skills and the ability to collaborate across teams to make platform improvements, test functionality, and evangelize adoption of platform features.
  • Hands-on experience with AI coding agents (eg. Claude Code, Cursor, Codex) and a point of view on how to harness them for large-scale migrations, code generation, and developer workflow automation.
  • Love for Web and drive to keep up-to-date with new technologies, trends and best practices in client architecture.
  • Bachelor’s degree in computer science or equivalent experience.

What the JD emphasized

  • Hands-on experience with AI coding agents (eg. Claude Code, Cursor, Codex) and a point of view on how to harness them for large-scale migrations, code generation, and developer workflow automation.