Senior Web Engineer II: Vue 3 Migration & High-Performance UI

Poshmark; United States; Remote; USD 140,000 - 190,000; Full time

Job summary

Poshmark is seeking a Senior Web Engineer II to own and evolve the buyer-facing web experience, driving the Vue 2 to Vue 3 migration, and delivering performant UI across core pages. You will partner with product and design to ensure pixel-perfect, accessible interfaces and scale to millions of users.

You will mentor engineers, influence the technical roadmap, and champion best practices for browser internals, rendering performance, and modern JavaScript.

Qualifications

• 5+ years of software development experience for high-scale web apps.
• Deep understanding of JavaScript fundamentals, the Event Loop, DOM API and browser rendering.
• Experience with migrating Vue 2 apps to Vue 3 and modern frontend tooling.

Responsibilities

• ArchitectExecute: Lead small pods to deliver complex features to production.
• The Vue Migration: drive Vue 2 to Vue 3 migration using Composition API and modern tooling.
• High-Performance UI: build responsive, accessible web apps with focus on Core Web Vitals and efficient state management.
• Design Partnership: collaborate with Product and Design to optimize user experience and visuals.
• Technical Mentorship: guide junior engineers through code reviews and architecture discussions.

Skills

JavaScript fundamentals

Browser rendering

High-scale web apps

Tools

Vue.js (Vue 2 to Vue 3 migration)

Vite/Webpack

Job description

Poshmark is seeking a Senior Web Engineer II to own and evolve the buyer-facing web experience, driving the Vue 2 to Vue 3 migration, and delivering performant UI across core pages. You will partner with product and design to ensure pixel-perfect, accessible interfaces and scale to millions of users.

You will mentor engineers, influence the technical roadmap, and champion best practices for browser internals, rendering performance, and modern JavaScript.