How to Hire a Vue.js Developer in 2026: Composition API, Pinia, and What to Screen For

The most common mistake when hiring a Vue developer in 2026 is screening for Vue 2 knowledge without realizing it. If your questions are about data(), methods, computed as top-level option keys, and Vuex, you might as well be asking about jQuery. Vue 3 shipped a substantially different mental model, and a developer who has not internalized it will slow you down on any modern project.

Here is what the role actually looks like now, and what to test.

What changed in Vue 3 and why it matters for hiring

Vue 3 introduced the Composition API: a set of functions that replace the old options object with something closer to how React hooks work. The surface area is different, but the deeper shift is that logic is now organized by feature rather than by option type. You put everything related to a search feature (state, computed values, watchers, methods) in one place instead of scattering it across five keys in an object.

<script setup> made this the default experience. New Vue 3 projects start with it. If a candidate is fluent in <script setup> and composables, they are working in idiomatic Vue 3. If they want to write Options API because it is “simpler,” they are probably working from habit rather than from current knowledge.

Pinia replaced Vuex as the official state management library. Pinia is simpler: stores are just composables with actions, and it has first-class TypeScript support without boilerplate. A candidate who still defaults to Vuex for new projects either has not read the Vue docs recently or is carrying over patterns from a long-running Vue 2 codebase.

The screen that actually reveals skill

The most revealing technical conversation is about reactivity. Ask the candidate to explain, without looking anything up, why this breaks:

const state = reactive({ count: 0, name: "Alice" })
const { count } = state   // destructured
count++                   // this does nothing to state.count

A developer who understands Vue’s reactivity system will explain that destructuring from reactive strips the reactivity proxy — the variable count is just a number now. They will know that toRefs solves this, or that they would have just used ref for count to begin with. A developer who just “uses Vue” will not know why the change is lost.

Follow up with composables. Ask them to sketch a composable that fetches user data and exposes the result, loading state, and an error:

// useUser.js
export function useUser(id) {
  const user = ref(null)
  const loading = ref(false)
  const error = ref(null)

  const fetchUser = async () => {
    loading.value = true
    try {
      user.value = await api.getUser(id)
    } catch (e) {
      error.value = e
    } finally {
      loading.value = false
    }
  }

  onMounted(fetchUser)
  return { user, loading, error }
}

The exact syntax matters less than the concept. Can they articulate why composables are better than mixins (no name collisions, explicit data flow, easier testing)? Do they reach for provide/inject when props would cascade down five levels? This is where you learn if they have actually built something with Vue 3 or just read about it.

Questions worth asking

A few that I have found separate real Vue 3 experience from surface familiarity:

“When would you choose watchEffect over watch, and vice versa?” watchEffect runs immediately and automatically tracks its reactive dependencies. watch is explicit about what it watches and only runs when those change. A developer who uses them interchangeably does not actually understand the tradeoff and will create subtle bugs where watchers fire at the wrong time.

“How does Vue 3 handle TypeScript compared to Vue 2?” Vue 3 was rewritten in TypeScript. defineProps, defineEmits, and the Composition API play well with type inference without extra plugins. In Vue 2, TypeScript integration required vue-class-component and was always a bit awkward. A candidate who has used both will have an opinion on this.

“What would you use for server-side rendering in a new Vue project today?” Nuxt 3 or 4. Not a trick question, but a developer who says “I’d set up SSR manually with Vite” for an agency project probably has not worked on projects where time-to-first-byte matters.

“Walk me through how you’d share authentication state across a Vue 3 app.” There are two good answers: a Pinia store, or a top-level composable with provide/inject. Both work. What you’re listening for is whether they explain the tradeoffs and when each fits. If they immediately say “Vuex” for a new project or if they just shrug and say “props,” keep asking.

Red flags worth naming

A candidate who only knows Options API is not automatically a bad hire, but it is a real limitation on any new Vue 3 project. The same with Vuex knowledge that has no Pinia equivalent.

Watch for: inability to explain what a composable is or how it differs from a mixin; no clear opinion on ref vs reactive (they both “just work” to this person); no awareness that v-model in Vue 3 changed (it uses modelValue and update:modelValue instead of value and input, which matters for custom components); and no experience with any Nuxt 3 project if the role involves anything with SSR.

Green flags: has opinions on <Teleport> and <Suspense> and knows when each is actually useful; has built and published at least one composable package; can explain defineExpose and why you would use it (to intentionally expose only specific things from a <script setup> component to a parent ref).

A note on ecosystem fit

Vue is most common in teams that came from a PHP or Laravel background (Laravel includes Vue as a first-party option), at agencies shipping marketing and B2B product sites, and in companies where the frontend team prefers a more structured alternative to React without the ecosystem weight of Angular.

If your project is a large SPA with complex state, Vue 3 with Pinia and TypeScript handles it well. If it is a content-heavy site with some interactivity, Nuxt 3 is the practical choice. Either way, the skill set you are screening for is the same.

The Codercops services page covers how we approach stack selection when clients are deciding between frameworks. If you are filling a Vue role and want a read on whether a candidate actually clears the bar, talk to us and we can help you design the screen.

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If you are also filling roles in adjacent technologies, the React developer hiring guide and the full-stack developer hiring guide cover overlapping skills from different angles.