(Front-end development)

Front-end development that holds up on a cheap phone

Front-end development is where your product is judged. We build interfaces in React, Next.js and Vue that load quickly on ordinary hardware, work with a keyboard, and stay maintainable after the third team touches them.

Talk to an engineer What we deliver
Engineer writing code
Front-end development

(The part users actually touch)

Nobody sees your architecture. They see whether the button responded, whether the list jumped while it loaded, whether the form remembered what they typed. A front end is a long argument about details, and the details are what people mean when they say an app feels good or feels cheap.

Most of that quality is decided early — in the component boundaries, the state model and the rendering strategy. Retrofitting it later costs several times more than getting it right once.

(What we deliver)

Front-end work we take on

Whole interfaces, a design system, or a rescue of a codebase that has become slow to change. Each is scoped separately.

  1. Dashboards, portals, booking flows, configurators and the long forms behind them. Built as typed components against a real API contract, with loading, empty, error and permission-denied states designed rather than improvised at the end.

  2. Tokens for colour, type and spacing; components in code that match the Figma library; Storybook as the place both designers and developers look. Versioned and published as a package, so a brand change is a release rather than a search-and-replace across four repositories.

  3. Deciding per route what is static, server-rendered, streamed or client-only — and living with the consequences on SEO, caching and time to first byte. Marketing pages and an authenticated app want opposite answers, and a single choice for both is usually wrong.

  4. Core Web Vitals treated as a budget, not a report card. Bundle analysis, code splitting, image and font strategy, hydration cost, and the long tasks that wreck INP. Measured on throttled mid-range devices, because that is what your users have.

  5. Keyboard paths, focus order, visible focus, labels, contrast, motion preferences and live regions, checked with axe and with a screen reader by hand. Done as a practice through the build; an audit at the end finds the same problems for ten times the cost.

  6. A codebase where every change breaks something else. The fix is usually boring: a dependency upgrade path, component boundaries redrawn, state untangled out of a global store, and enough Playwright coverage that the next change can be made without fear.

(What we build with)

(How we work)

How the work runs

Every engagement is scoped in phases, priced per phase, and reviewed with you at the end of each one.

  1. 01

    Discovery

    We map the problem, the systems around it and what a good outcome looks like, then scope the work in phases you can stop after.

  2. 02

    Design

    Flows, architecture and interfaces agreed before anyone writes production code.

  3. 03

    Build

    Two-week increments, a working environment you can open, and a demo at the end of each one.

  4. 04

    Testing

    Functional, performance, security and accessibility checks run through the build, not bolted on at the end.

  5. 05

    Launch

    Deployment, monitoring, documentation and the handover your team needs to run it.

  6. 06

    Support

    Fixes, updates and the next set of features, at an agreed monthly capacity.

(Why Team of Keys)

How front-end code stays cheap to change

Front ends rot faster than back ends. The causes are well known — shared mutable state, components that know too much, and a dependency tree nobody dares update.

  1. 01

    State kept where it belongs

    Server data in a query cache, form state local, only genuinely global things in a store. Most tangled front ends are one decision away from untangled: stop putting API responses in Redux.

  2. 02

    A budget, checked in the pipeline

    Bundle size and Lighthouse thresholds run on every pull request. Performance regressions get caught by the build rather than by a customer complaint six weeks later.

  3. 03

    Tests at the level users work

    Playwright drives the three or four journeys that make money; unit tests cover the logic underneath. Screenshot tests are used sparingly, because a suite that cries wolf gets ignored.

  4. 04

    Designers and developers on one library

    The Figma library and the component package share token names. When they drift, the review catches it — which is what stops the interface becoming forty shades of grey.

  5. 05

    Upgrades as routine maintenance

    Dependencies move in small, scheduled steps with automated checks. Framework migrations stop being a project you postpone until the security advisory forces it.

(Related)

More in development

All development services

(FAQ)

Questions, answered

Next.js if the product needs public pages to rank as well as an authenticated app, since routing, rendering and caching come with it. Plain React when it lives entirely behind a login. Vue and Nuxt when your team already writes Vue, because the maintainer you can hire matters more than the framework comparison. Whoever inherits the code should be the deciding factor.

Count screens and states, not pages. A dashboard with twelve views, role-based permissions and real-time updates is several times the work of a marketing site with the same number of URLs. After a short scoping phase you get a price per phase, with the design system quoted separately because it is reusable across later work.

Yes, and we would rather start there. The first pass reviews the file for missing states, responsive behaviour, focus treatment and contrast — the gaps that surface during build if nobody checks. Where components repeat, they become a shared library first, which keeps the rest of the implementation consistent.

By measuring first. Field data from real users and lab runs on throttled mid-range devices show whether the problem is LCP, INP or CLS, which have different cures. Typical fixes are code splitting, smarter image and font loading, moving work off the main thread, and reducing hydration. Budgets then run in the pipeline so it stays fixed.

Accessibility is built in as a working practice against WCAG 2.2 AA — semantic markup, keyboard paths, focus management, contrast and motion preferences — with axe in the pipeline and manual screen reader passes on key journeys. Formal certification is something an independent auditor issues; our job is making sure their report is short.

(Global presence)

Nine countries, one studio behind them.

Every project is designed, built and shipped from one studio.
Turn the globe, or pick a country to see what we deliver there.

NoidaDrag to turn

Studio · Noida, India · --:--

(Next step)

Send us the designs, or the slow page

A Figma link, a repository or a URL that feels sluggish is enough. You get a technical read, a scope and a price per phase, usually within two working days.

START

Or write to info@teamofkeys.com · Noida, India