Interface Engineering

High-performance React and Next.js interfaces for SaaS and business products. The starting price covers a focused set of screens. Add systems, integrations, and quality layers as the product demands.

Starting at$1,000

Base Package

What's Included

Up to 5 key screens
React, Next.js and TypeScript
Pixel-perfect, responsive build
Performance-first architecture
Conversion-focused UX

Good Fit

Ideal For

SaaS founders with a backend but no frontend
Teams modernising an older React app
Products that need a polished first impression

Build Your Quote

Choose Your Add-Ons

Start from $1,000. Select what you need and the estimate updates instantly.

Scope

5 additional screensExtend the build beyond the 5 included screens.+$300Dashboard & data tablesCharts, filterable tables, and real-time data views.+$500Auth & role-based access UILogin flows, session handling, and permission-aware screens.+$350API integrationConnect the interface to your existing backend or third-party APIs.+$300

Systems

Design system & tokensA reusable component library with tokens your team can extend.+$400Storybook documentationDocumented components so developers can build consistently.+$150Motion & micro-interactionsConsidered animation that makes the product feel finished.+$250

Quality

Accessibility pass (WCAG)Keyboard, screen reader, and contrast fixes to meet WCAG 2.2 AA.+$200Unit & end-to-end testsAutomated tests covering the critical user flows.+$300Legacy migration (CRA / older React)Move an existing app to Next.js without a rewrite.+$400

Your Estimate

$1,000

Estimated starting price. We confirm the final quote after a short conversation.

Interface Engineering (base)$1,000
No add-ons selected yet.

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