Building sharp, humane interfaces for complex products.

I design and ship AI-assisted editor UX, design-system primitives, high-performance dashboards, and product workflows in React, TypeScript, Next.js, Vue, Tailwind, and Framer Motion.

Hakimuddin Haweliwala

Toptal verified engineer

Frontend-heavy product engineer trusted across enterprise, SaaS, editor tooling, and startup MVP work.

10+

years building production UI

40%

less integration effort on editor plugins

35%

fewer UI bugs after React modernization

60%

faster loads with offline-first architecture

AI-assisted editors

Context-aware suggestions, autocomplete, pitch generation, prompt rewrites, version history, and rich text controls.

Design-system primitives

Accessible components, keyboard behavior, focus management, Storybook-ready APIs, and reusable interaction patterns.

Performance platforms

React/Next.js migrations, IndexedDB, Web Workers, rendering reliability, CI/CD, and product-grade interaction polish.

Selected Work

Public proof, product depth, and editor craft.

These are the projects most aligned with senior frontend, UI platform, product engineering, and AI-assisted tool roles.

Senior Frontend DeveloperAnimation editor

LottieFiles Creator

A dense web animation editor built with React, TypeScript, Zustand, and Tailwind.

Timeline editing, layer hierarchy, shape transformation, segment management, marquee selection, and frame trimming.

Reusable hold-to-open menu interactions, smarter segment naming, and editor reliability fixes for shape scaling.

ReactTypeScriptZustandTailwindEditor UX
Open product
MUI Base UI interface screenshot
Open Source Contributor9.6k-star OSS

MUI Base UI

Accessible, unstyled React primitives for teams that need deep control over component behavior.

Improved keyboard navigation, keepMounted logic, mouse interactions, and disabled-state focus handling.

Touched Menu, Checkbox, Radio, Select, Switch, and Slider behavior in public TypeScript contributions.

Open sourceAccessibilityReactTypeScriptComponents
View PRs
Senior Frontend DeveloperProduct modernization

BrowserStack App Live

Real-device app testing experiences modernized from legacy jQuery into React, Next.js, and Redux.

Reduced frontend debt, improved maintainability, and decreased UI-related bug reports by 35%.

Built polished product interactions with Framer Motion and internal Node/Express automation for debugging workflows.

Next.jsReactReduxFramer MotionNode.js
Open product

AI Editor Work

The private work still tells a public story.

A lot of my best work lives inside enterprise or early-stage products. The pattern is consistent: make dense, stateful tools feel precise, fast, and forgiving.

Screenplay AI
Cold open
INT. LAB - NIGHT
Dialogue pass
Pitch draft
AI rewritev4

INT. SOUNDSTAGE - MIDNIGHT

The cursor waits at the end of a half-finished line. A suggestion appears, calm and specific.

Context-aware suggestion

Tighten the exchange, keep the subtext, and preserve screenplay structure.

2025

Screenplay AI

Lead Frontend Engineer

Built the AI-native MVP for a screenplay writing platform with Vue 3, Tailwind, TipTap, and Gemini API workflows.

Screenplay-aware editor blocks, scene headers, dialogue, parentheticals, and real-time validation.

Inline suggestions, pitch generation, prompt rewrites, context-aware autocomplete, version history, and drag-and-drop scenes.

Oct 2022 - May 2026

ServiceNow editor platform

Senior Frontend Engineer

Architected AI-assisted dropdown and HTML editor controls across enterprise workflows.

High-performance TinyMCE @mention plugin with lazy-loaded suggestions, bulk tagging, and event-driven integration.

ARIA, keyboard navigation, undo-redo, focus management, and CI/CD that cut release cycle time by 30%.

Experience

From mobile apps to enterprise editor infrastructure.

ServiceNow

Senior Frontend Engineer

Oct 2022 - May 2026

AI-assisted enterprise UX, TinyMCE plugins, accessibility, editor controls, autocomplete, CI/CD, and distributed US/EU collaboration.

BrowserStack

Senior Frontend Developer

Nov 2021 - Sep 2022

React/Next.js modernization, Framer Motion product polish, Redux workflows, and Node/Express internal automation.

Globant

Senior Web UI Developer

Feb 2020 - Nov 2021

Atomic component library, D3 dashboards, ambiguous workflow translation, and reusable frontend architecture.

HCL Technologies

Front End Developer

Oct 2018 - Feb 2020

Offline-first IndexedDB caching, Web Workers, WebGL dashboards, and performance-sensitive enterprise modules.

Five Exceptions

React Native Developer

Dec 2015 - Feb 2018

Mobile and web application delivery, reusable theming, modular styling, optimized state management, and release support.

Toolkit

Fast in the stack, patient with the product.

The useful combination is technical depth, interaction taste, and the willingness to sweat the last 10 percent of a workflow.

ReactTypeScriptNext.jsTailwind CSSFramer MotionVue 3TinyMCETipTapMaterial UIReduxZustandStorybookJestRTLD3.jsWebGLIndexedDBWeb WorkersNode.jsExpressAWSGitHub ActionsJenkinsWCAG

Contact

Let's build the kind of interface people trust at speed.

I'm a strong fit for senior frontend, UI platform, design-system, frontend-heavy fullstack, founding engineer, and AI product roles.