Principal Frontend Engineer

We run a marketplace with over 300,000 active sellers and fulfillment centres in four regions. Vieira Marketplace operates consumer websites and apps used by tens of millions of people each month. Product reviews happen on Thursdays, with demos of whatever shipped that week.

The role

We're hiring another Principal Frontend Engineer to build the web interfaces our customers use every day, mostly in React and TypeScript. The work is on site and cannot be done remotely.

In this role you will

• Migrate legacy jQuery or AngularJS pages to the current stack.
• Build UI features in React and TypeScript from Figma designs.
• Review frontend pull requests and keep coding conventions consistent.
• Pair with backend engineers on API contracts before work starts.
• Integrate with REST and GraphQL APIs and handle loading, error and empty states properly.
• Write unit tests with Jest and React Testing Library, and end-to-end tests with Playwright or Cypress.

Minimum qualifications

• 8+ years building production web applications.
• Comfortable using browser dev tools to debug network, layout and performance issues.
• A good eye for spacing, alignment and small visual details.
• Strong JavaScript and TypeScript, including async code and the DOM.

Preferred qualifications

• Some Node.js backend work.
• Internationalization (i18n) and right-to-left layouts.
• Experience building or maintaining a design system.

What we offer

• Private health insurance.
• 13th-month bonus.
• Life insurance.
• Gym membership.
• Meal vouchers.
• Savings fund.

Include your expected salary and earliest start date with your application.

Start: Immediately.

Demo job created on 11jobs for testing and demonstrations. It is not an actual opening at Vieira Marketplace.