React development agency, shipped apps not decks.

Every project on this site is a React app. That includes the site you're reading now, the customer-facing tools we ship for clients, and the AI-native products where React is the shell around a Claude-powered backend. We are a React development agency in the plain sense: production apps, in your repo, deployed on your infrastructure.

• Marketing sites and content platforms that hold up to real SEO scrutiny, not just Lighthouse screenshots.
• Internal tools and admin dashboards for operations teams, with proper auth, RLS, and audit logs.
• Customer-facing SaaS surfaces where the React app is the front end of a real product with billing, auth, and multi-tenant data.
• AI-native React apps where the app calls Claude, streams tool use, and renders results defensively. This is where most React agencies fall over; we don't.

• React 18 with hooks-first architecture, TanStack Query for server state, and route-level code splitting.
• TypeScript strict mode. No any, no untyped fetches, no "we'll type it later."
• Vite for the build. Fast, boring, correct.
• Tailwind CSS with a semantic token layer so brand changes stay one edit, not a hundred.
• shadcn/ui primitives customized to the brand rather than shipped as defaults.
• Supabase as the backend when the product needs one: Postgres, RLS-enforced auth, edge functions, storage.
• Claude and MCP for the AI layer when the product calls for it, with typed MCP servers as the tool boundary.
• Deployment on Cloudflare, Railway, or Vercel depending on the shape of the app.

1. Founder-led. Alex Cinovoj writes and reviews the code. No junior team learning on your production repo.
2. Fixed scope, fixed timeline. Written proposal within 24 hours of a scoping call. No hourly billing traps and no six-month "discovery" phases.
3. Your repo, your infrastructure. Code lives in your GitHub, deploys to your hosting, uses your secrets. We are never a single point of failure.
4. Real accessibility. Keyboard navigation, ARIA labels, focus management, and color contrast that would pass an actual audit, not just axe with the warnings suppressed.
5. Anti-hype voice on the copy. If we write the marketing surface, it will not lie about what the app does.

A meaningful share of "we need a React agency" calls are actually one of these:

• A rapid-build engagement that fits our rapid software development track (marketing sites, MVPs, internal tools).
• An AI product where React is the shell but the real work is Claude integration and MCP server development. Our how to build an MCP server guide covers what that surface actually involves.
• An AI audit where the honest first step is $1,000 and 48 hours before anyone builds anything. See the AI Audit.

We route you to the correct engagement shape on the scoping call. React expertise doesn't cost extra; it's the substrate.

1. Scoping call. 30 minutes. Product goals, must-have features, must-not-have scope creep.
2. Written proposal in 24 hours. Fixed scope, fixed weeks, fixed price. Design direction called out explicitly if we're driving that too.
3. Build. Iterative, in your repo, with weekly demoable checkpoints. You see progress in the app, not in status meetings.
4. Ship. Production deploy on your infrastructure with monitoring, error tracking, and a runbook.
5. Handoff. Documentation, walkthrough call, and 30 days of light-touch support so your team owns it cleanly.