hello@mazharsiddiqi.com

FRONTEND DEVELOPMENT

The part users actually touch.

Component architecture that remains maintainable, state management that does not become the source of bugs, and performance that holds up with real data.

WHAT FRONTEND WORK INVOLVES

More than turning designs into pages.

On a marketing site, frontend work can look like translation. On an application, the difficult part is state: what the interface knows, when it knows it, how it stays consistent with the server, and what happens while it is waiting.

Most bugs are stale data, unresolved loading states, and components disagreeing about what is true. The other challenge is structure. An architecture that works for twenty components can collapse at two hundred if it is not designed to grow.

“The interface is where product logic becomes visible to the user.”

The operating principle

WHAT I BUILD

Interfaces designed for the product behind them.

The work covers new builds and the harder reality of improving an existing front end without disrupting everything already shipping.

New application front ends

Interfaces built from designs with component structure planned before the first screen becomes a pattern.

Existing codebase work

Features added inside another team’s front end, following the conventions that already make sense.

Component libraries

Reusable components and design-system foundations so new screens are assembly rather than reinvention.

Performance work

Bundle size, rendering behaviour, and data-heavy interfaces that feel fine in development but crawl in production.

Refactoring

Incremental cleanup of a front end that grew without a plan, while the product keeps moving.

Accessibility work

Keyboard navigation, screen-reader behaviour, contrast, focus management, and usable interface states.

THE FRONTEND STACK

Structure, state, and speed in one system.

A narrow stack chosen for maintainable product interfaces, not a list of frameworks collected for a portfolio.

Framework

The component and rendering foundation chosen around how the product is used.

  • React
  • Next.js
  • TypeScript
  • Server Components
  • Routing
  • Rendering strategy

State & data

Clear separation between client state and server data so the interface stays predictable.

  • React Query
  • Redux Toolkit
  • Query caching
  • Optimistic updates
  • Loading states
  • Error states

Interface system

A repeatable visual language that can grow without a stylesheet becoming the next problem.

  • Tailwind CSS
  • Design tokens
  • Component library
  • Responsive layouts
  • Accessibility
  • Interaction states

Performance

The tools and habits used to keep an application fast with production traffic and real data.

  • Code splitting
  • Bundle analysis
  • Virtualised lists
  • Memoisation
  • Image optimisation
  • Render profiling

The right state approach depends on the product. I do not add a global store where server caching is the simpler and safer answer.

PERFORMANCE

Interfaces that stay fast.

Frontend performance problems usually have a small number of causes: too much JavaScript, unnecessary renders, oversized images, and data requests that multiply with list length.

Code splitting, virtualised lists, responsive image handling, render profiling, and bundle analysis are considered during the build. They also support Core Web Vitals, where frontend work and SEO become the same job.

“A screen that works in development still has to work with real data.”

Web interface design and development

EXISTING CODE

Join the codebase before changing it.

Most frontend work happens in code somebody else wrote, often under time pressure and with several opinions already present. The first responsibility is to understand the system before trying to improve it.

I follow the conventions that are already serving the team, keep refactoring separate from feature work so reviews stay clear, and flag structural issues rather than silently working around them.

Team discussing a software project

THE STANDARD

Consistency in a codebase is more useful than one developer’s preferred pattern.

Senior capacity, only when the work exists

COMMON QUESTIONS

Frontend work, clearly scoped.

The practical answers before the first component or feature is committed.

Can you build from Figma designs?

Yes. I will flag anything that will not hold up with real content or real application states before development begins.

Can you work in our existing React codebase?

Yes. Existing codebase work is a large share of frontend engagements.

Do you build backends too?

Yes, although frontend-only work is common where the team already has a backend capability.

React or Next.js?

It depends on the product. Public-facing applications often justify Next.js; internal tools frequently do not need the extra complexity.

Can you fix a slow interface?

Usually. Most frontend performance problems come from a small number of predictable rendering, bundle, image, or data patterns.

Do you handle accessibility?

Yes. It is built into the interface work rather than added as a separate quote after design.

Need frontend development?

Send the designs or the repository. You will get a fixed price and a direct view of the technical risks and sensible next step.

React & Next.jsReal-world performanceAccessible UI