Reactivity pitfalls
Lost reactivity on destructured props, deep-watch overhead and accidental mutation of reactive objects cause subtle bugs that only surface at scale.
Vue 3 Composition API Pinia Nuxt-ready
Vue.js Development for Reactive Web Interfaces
We build production Vue 3 front-ends for US and EU companies — from data-dense dashboards to public-facing SPAs that must rank and convert. Our engineers ship typed Composition API components, Pinia stores and Nuxt-rendered pages that stay fast as the product grows. Every interface is accessible, privacy-aware and secured against XSS by default.
We build production Vue 3 front-ends for US and EU companies — from data-dense dashboards to public-facing SPAs that must rank and convert. Our engineers ship typed Composition API components, Pinia stores and Nuxt-rendered pages that stay fast as the product grows. Every interface is accessible, privacy-aware and secured against XSS by default.
Challenges
Industry challenges we solve
State management at scale
Without clear store boundaries, shared state turns into tangled cross-component dependencies that are hard to test and reason about.
SSR & hydration
Server-rendered Vue can mismatch the client tree, throwing hydration errors and flashing content when state is not serialised correctly.
Bundle size
Eager imports, heavy UI libraries and unsplit routes inflate the bundle, pushing out Largest Contentful Paint on real-world devices.
Accessibility
Custom Vue widgets — modals, comboboxes, tabs — routinely ship without focus traps, ARIA or keyboard support, failing WCAG.
SEO for SPAs
Client-only rendering leaves crawlers with an empty shell, so content-driven pages fail to index and rank without server rendering.
Solutions
Solutions we build
Component systems
We design typed, composable Vue 3 components with clear props and emits, documented in Storybook and reused across the product.
Pinia state
Pinia stores with typed actions and getters give predictable, modular state and DevTools-friendly debugging.
Nuxt SSR
Nuxt 3 server rendering and hybrid rendering deliver indexable HTML and fast first paint with clean hydration.
Accessible by design
Every interactive component ships with ARIA, focus management and keyboard support, verified against WCAG 2.2 AA.
Performance
Route-level code splitting, lazy components, Vite tuning and Core Web Vitals budgets keep the app fast as it grows.
Hardened front-end
Strict CSP, sanitised bindings, SRI and consent-gated scripts protect users and your data-collection footprint.
Stack
Technology stack
Vue 3, TypeScript, Vite, Composition API, Pinia, Vue Router, Nuxt 3, Vitest, Vue Test Utils, Playwright, Storybook, ESLint and Tailwind CSS.
Compliance
Compliance & regulations
WCAG 2.2 AA accessibility · privacy-by-design · Content-Security-Policy · cookie-consent
EU
- GDPR — client-side data minimisation, explicit consent gating before any tracking or third-party script loads, and no PII leaking into URLs or local storage.
- EAA / EN 301 549 + WCAG 2.2 AA — keyboard-navigable components, correct ARIA, focus management and tested screen-reader behaviour across the Vue component tree.
- ePrivacy / cookie-consent — cookies and analytics deferred behind a consent layer, with opt-in state respected by every reactive component.
- CSP / Trusted Types — strict Content-Security-Policy, no inline eval, and Trusted Types to neutralise DOM-based XSS in the SPA.
US
- ADA / Section 508 + WCAG 2.2 AA — accessible Vue components that meet federal and litigation-driven US accessibility expectations end to end.
- CCPA / CPRA — client-side opt-out signals (including Global Privacy Control) honoured before data collection runs.
- SOC 2 (frontend supply-chain) — pinned dependencies, Subresource Integrity on third-party scripts and audited npm provenance to protect the build pipeline.
- CSP / XSS hardening — strict CSP headers, sanitised v-html usage and escaped bindings to block injection in the rendered app.
Cases
Selected Vue.js case studies
Social Media · Consumer Tech
JoyJet
Production social platform — App Store + Google Play, live across the US and EU — with geo Radar, encrypted messaging and a virtual economy.
LegalTech · Mobile · CRM
Signatory Pro
Native iOS and Android e-signature clients with a Symfony + React CRM for a cross-border law firm — KYC onboarding and a defensible evidence trail for US & EU matters.
Sports Media · Mobile
Media Arena
Cross-platform sports news app and web portal — Telegram-bot CMS instead of a custom admin, Markdown publishing pipeline.
Why YuSMP
Why product teams choose YuSMP for Vue.js development
Senior Vue engineers
You work directly with engineers who have shipped Vue 3 and Nuxt in production, not juniors learning on your project.
US & EU delivery
We work in overlapping hours with US and EU teams and build to ADA, GDPR and WCAG from day one.
Quality you can audit
Typed code, Vitest and Playwright coverage, accessibility checks and a hardened build pipeline come as standard.
FAQ
Vue.js Development FAQ
Should we choose Vue or React?
Both are excellent; the right choice depends on your team and constraints. Vue offers a gentler learning curve, a cohesive official ecosystem (Router, Pinia, Nuxt) and less boilerplate, which speeds delivery. We help you weigh hiring market, existing code and architecture before committing, and we are equally fluent in both.
Options API or Composition API?
For new Vue 3 work we default to the Composition API with <script setup> and TypeScript, because it gives better type inference and far cleaner logic reuse via composables. The Options API remains perfectly valid and readable for smaller components, and the two interoperate, so migration can be gradual rather than all-at-once.
Pinia or Vuex?
Pinia is the official, recommended store for Vue 3 and what we use on new projects — it is fully typed, modular, lighter than Vuex and integrates with Vue DevTools. Vuex is in maintenance mode. If you have an existing Vuex codebase we can keep it running or migrate it to Pinia incrementally.
Do we need Nuxt and SSR?
If your pages need to be indexed by search engines, shared with rich previews or render fast on first load, then yes — Nuxt 3 gives you server-side and hybrid rendering with minimal configuration. For an internal, authenticated dashboard a plain Vite SPA is usually simpler and sufficient. We assess this per project.
How do you make Vue apps accessible?
We build interactive components with correct semantics, ARIA roles, managed focus and full keyboard support, then test against WCAG 2.2 AA using automated tools and screen readers. This covers EU EAA / EN 301 549 and US ADA / Section 508 expectations, which is essential for public-facing products in both markets.
Can you migrate our Vue 2 app to Vue 3?
Yes. We typically start with the official migration build to run Vue 2 and 3 behaviour side by side, upgrade the toolchain to Vite, then move components to the Composition API and Vuex to Pinia incrementally. This keeps the app shippable throughout rather than freezing development for a big-bang rewrite.
How do you handle SEO for a Vue SPA?
A pure client-rendered SPA gives crawlers an empty shell, so for content and marketing pages we use Nuxt server or static rendering to deliver real HTML, managed meta tags, canonical URLs and structured data. Combined with performance budgets and clean Core Web Vitals, this lets Vue pages index and rank reliably.