Frontend
React
React Engineers Who Ship, Not Just Code.
Battle-tested React engineers who build component-driven UIs that scale from MVP to millions of users. Our developers own the full component lifecycle — from design-system tokens to production performance audits — and integrate into your existing workflow within days. We serve product teams across the United States, United Kingdom, Germany, Netherlands, and Scandinavia, with 4–6 hours of daily CET overlap and fully GDPR-compliant processes.
Use Cases
What we build with React.
Design System Implementation
Scalable, token-driven component libraries built on React with Storybook documentation, visual regression tests, and versioned npm packages. We've built design systems adopted by 30+ product teams for fintech companies in London, SaaS platforms headquartered in Amsterdam, and e-commerce brands operating across the DACH region.
Real-Time Collaborative Apps
WebSocket-powered interfaces with optimistic UI updates, conflict resolution, and presence indicators. Think multiplayer dashboards, live document editors, and shared whiteboards. Our engineers have shipped collaborative tools for remote-first teams across New York, Berlin, and Stockholm with sub-100ms update latency.
Complex Form Workflows
Multi-step forms with conditional logic, inline validation, file uploads, and auto-save. We use React Hook Form and Zod to build type-safe form systems that handle insurance applications, onboarding flows, and compliance questionnaires for regulated industries in Frankfurt, Zurich, and across the EU.
Data Visualization Dashboards
Interactive charts, filterable tables, and drill-down analytics built with D3, Recharts, or Visx inside React. Virtualized rendering keeps dashboards responsive with tens of thousands of rows. We've delivered analytics platforms for logistics companies in Rotterdam, adtech firms in New York, and healthcare providers in Munich.
Mobile-First Progressive Web Apps
Offline-capable PWAs with service workers, push notifications, and installable home screen experiences. React powers the shell while smart caching strategies keep content available without network access. Ideal for field teams, retail associates, and warehouse operators across the US and European markets.
Legacy Codebase Modernization
Incremental migration from jQuery, Angular, or class-component React to modern functional React with hooks. We introduce TypeScript, replace Redux with lighter state solutions, and improve bundle size without halting feature development. Delivered for enterprise clients in Paris, Madrid, and across the US East Coast.
Expertise
How we work with React.
Component Architecture & Patterns
We design component trees for composability and reuse — compound components, render props, headless UI patterns, and controlled/uncontrolled abstractions. Every component gets typed props with discriminated unions, proper ref forwarding, and accessibility attributes baked in from the start.
State Management at Scale
We choose the right state tool for the job: React context for theme and auth, Zustand or Jotai for client-side app state, TanStack Query for server state with cache invalidation. No over-engineered global stores — just clean boundaries between server data, UI state, and URL state.
Performance Optimization
Profiler-driven optimization using React DevTools flame charts, bundle analysis with source-map-explorer, and lazy loading with Suspense boundaries. We eliminate unnecessary re-renders, implement virtualized lists for large datasets, and keep interaction-to-paint under 100ms across the component tree.
Accessibility & Internationalization
WCAG 2.1 AA compliance with semantic HTML, ARIA patterns, focus management, and keyboard navigation. Combined with i18n via react-intl or next-intl for multi-language support across EU markets — RTL layouts included. Accessible by default, not as a retrofit.
Testing & CI Integration
Component tests with Vitest and Testing Library, integration tests with MSW for API mocking, and E2E flows with Playwright. We configure CI pipelines that run type checks, lint rules, and test suites on every PR — catching regressions before they reach staging or EU production environments.
Why us
Why TBI for React.
Productive from Day One
Our React engineers arrive having reviewed your repo, understood your component patterns, and configured their local environment. First PRs ship within 48 hours. No weeks of onboarding overhead — we match developers to your specific React stack before engagement begins.
AI-Augmented Development
Every developer uses Cursor, GitHub Copilot, and custom LLM-powered tools for component scaffolding, test generation, and code review. AI accelerates the repetitive parts — prop type generation, boilerplate reducers, test fixtures — so engineers spend their time on architecture and UX decisions.
US & EU Timezone Overlap
Based in IST (UTC+5:30), our engineers maintain 4–6 hours of overlap with CET and 3–4 hours with US Eastern. Sprint planning with your Amsterdam team in the afternoon, async handoffs to your San Francisco office — we adapt our schedule to your rituals.
GDPR-Compliant by Default
We sign Data Processing Agreements with all European clients, follow privacy-by-design principles in component development, and support EU-region deployments. Cookie consent components, data minimization in forms, and right-to-deletion flows are part of our standard React delivery.
Related
Our React teams often ship with.
FAQ
Common questions.
How much does it cost to hire a dedicated React developer offshore?
Full-time dedicated React engineers start at $5,000/month, with senior specialists in performance, accessibility, or design systems ranging from $6,000–$9,000/month. This covers full integration with your tools — GitHub, Slack, Linear, Figma — plus daily standups and sprint participation. A senior React developer in the US costs $150,000–$200,000/year; in Germany or the Netherlands, €80,000–€120,000/year. Our model delivers equivalent quality at 60–70% lower cost.
How quickly can a React developer be onboarded to our codebase?
Typically 2–3 days to first meaningful PR. Before onboarding, we profile your stack — state management library, styling approach, testing framework, CI setup — and match an engineer who has shipped production code with that exact combination. They review your component hierarchy and coding standards ahead of day one.
How do your React developers handle large-scale state management?
We avoid one-size-fits-all. Server state lives in TanStack Query with smart cache keys and background refetching. Client state uses Zustand for simplicity or Jotai for atomic granularity. URL state is managed via search params. React context is reserved for low-frequency global values like themes. This layered approach prevents the monolithic Redux stores that slow down most large React apps.
Are your processes GDPR-compliant for European clients?
Fully. We execute Data Processing Agreements, enforce privacy-by-design in UI development — form data minimization, consent-gated analytics, secure token handling — and deploy to EU-region infrastructure (AWS eu-central-1, Vercel EU edge). Our engineers understand GDPR's impact on frontend: cookie banners, data export UI, and account deletion flows.
What timezone overlap do your React developers have with US and EU teams?
Our team operates from IST (UTC+5:30), providing 4–6 hours of overlap with Central European Time and 3–4 hours with US Eastern. We structure mornings for US collaboration and afternoons for European sync. During launches or critical sprints, engineers extend hours for full-day coverage across both regions.
Ready to scale your
React team?
Tell us what you need. We'll scope the engagement and match you with React engineers in days.