Waqar MobeenSenior Frontend Engineer

Waqar Mobeen

Senior Frontend Engineer — React, Next.js, TypeScript & Node.js

13+ years building fast, scalable web products. At Chalkline I cut bundle size and page-load time by ~50%, built the multi-tenant architecture behind 20+ white-labelled operator clients, and built the 50+ component design system its Design, Product and Engineering teams shipped on.

RawalpindiRemote · full-time or contractAvailable immediately

View workDownload CV
  • React
  • Next.js
  • TypeScript
  • Node.js
  • Design systems
Selected work

Things I've designed the front of and shipped.

Primary case study01

Northstar UI

Accessible React design system

A React and TypeScript component library for SaaS dashboards and complex web apps — around 40 accessible, theme-able components built on design tokens, with composable APIs and full Storybook documentation.

Role

Design, architecture, and implementation

Context

Product teams kept re-litigating spacing, colour, focus behaviour, and keyboard interaction on every screen. Northstar UI exists so they don't have to — it is engineering documentation, not a marketing page.

  • Accessibility is the baseline, not a feature: every component ships with correct roles, names, states, keyboard support, and focus management, preferring native elements over ARIA.
  • Composition over configuration: components expose small, predictable APIs and split into subcomponents (Card.*, Tabs.*, Table.*) rather than growing prop lists.
  • Tokens, not magic numbers: colour, spacing, radius, type, motion, and elevation all come from CSS custom properties — structural tokens stay fixed while colour tokens drive theming.
  • Predictable state: stateful components follow one controlled/uncontrolled contract via a shared useControllableState, so value / defaultValue / onChange behave the same everywhere.
  • Documented and verified with Storybook and Chromatic visual regression, released through CI.
  • React
  • TypeScript
  • Design tokens
  • Storybook
  • Chromatic
  • CI releases
Visit Northstar UI
Experience

13+ years, frontend first.

  1. Oct 2021 — Jul 2026

    Nashville, TN (Remote)

    Senior Front End Developer · Chalkline

    Full-time

    On a four-person team building Chalkline's multi-tenant React and TypeScript platform — white-labelled free-to-play sports prediction games for 20+ operators (sportsbooks, casinos, lotteries) and 100K–500K monthly active players across North America.

    • Owned frontend delivery of games including Pick'em, Quick Picks, VIP Sports, Pick Spin and Win, Sports Bingo, Hi-Lo, and Same Game Parlay, reused across every operator deployment.
    • Built the multi-tenant architecture — one codebase with per-client theming, configuration, feature flags, and auth modes — cutting new operator launches from weeks to days.
    • Reduced bundle size and page load time by ~50% through code splitting, Webpack chunk tuning, and bundle analysis.
    • Built the Chalkline Design System — 50+ Storybook components with Chromatic visual review — the single source of truth across Design, Product, and Engineering.
    • Architected the state and data layer with Redux Toolkit, Redux Persist, and React Query for cached, optimistic UI.
    • Integrated Auth0 SSO, Knock notifications, Google Tag Manager, reCAPTCHA, and DOMPurify, and shipped the EasyEmbed iframe integration for lightweight operator embeds.
    • Established a full test pyramid (Jest, React Testing Library, Cypress, Playwright visual regression), enabling multiple production releases per week.
    • Used AI tools including Claude and ChatGPT to accelerate development — scaffolding components, writing tests, code review, refactoring, and debugging.
    • Drove frontend CI/CD with Bitbucket Pipelines and Azure DevOps, and mentored mid-level and junior engineers through PR reviews and Storybook-first practices.

    React, TypeScript, Redux Toolkit, Redux Persist, React Query, Auth0, i18next, Formik, Yup, Webpack, SCSS, Storybook, Chromatic, Jest, Cypress, Playwright, Bitbucket Pipelines, Azure DevOps

  2. Sep 2020 — Sep 2021

    Manchester, UK (Remote)

    Senior Front End Developer · PrettyLittleThing.com

    Contract

    Frontend engineer on business-critical shopping flows for one of the UK's highest-traffic fashion e-commerce platforms, where reliability directly affects revenue and conversion.

    • Built and maintained checkout-adjacent features in React and TypeScript — payments, shipping, and promotions.
    • Integrated payment providers including PayPal, Adyen, Klarna, Clearpay, and Worldpay across complex, high-volume flows.
    • Developed supporting backend services in Node.js and Express.
    • Worked as a fully remote engineer with UK-based product, design, and QA teams on a codebase serving Black Friday-scale traffic.

    React, TypeScript, Node.js, Express, Jest, Webpack, Axios, REST APIs, Git, Jira

  3. Jun 2019 — Aug 2020

    Islamabad, Pakistan (Hybrid)

    Senior Frontend Engineer | Full Stack · Zigron Inc.

    Full-time

    Led development and architecture across multiple product teams, with a focus on scalability, performance, and code quality — React on the frontend, Node.js and Express on the backend.

    • Designed and built scalable Node.js and Express services powering real-time features through Socket.IO, backed by MongoDB and protected with JWT authentication.
    • Architected scalable React + Redux applications and established team-wide standards for code structure, reviews, and maintainability.
    • Iylus (real-time security monitoring): built the platform end to end — a Node.js and Socket.IO backend for continuous live data streaming and a responsive React and Redux dashboard for 24/7 monitoring.
    • Improved workflow and reliability through Webpack configuration, unit testing with Jest, and consistent API integration with Axios.
    • Mentored junior developers and interns through code reviews and internal training on modern full-stack practices.

    React, JavaScript (ES6+), Redux, Node.js, Express, MongoDB, Socket.IO, JWT, Webpack, Jest, Axios

  4. Apr 2016 — May 2019

    Islamabad, Pakistan (On-site)

    Full Stack Engineer (Frontend) · We Are Nova

    Full-time

    Built scalable web and mobile applications end to end — from planning and API design through deployment — in Agile teams, with React, Angular, and React Native on the frontend and Node.js and Express on the backend.

    • Developed RESTful APIs and backend services with Node.js, Express, and MongoDB, secured with JWT-based authentication.
    • Stamp: an accessibility-focused platform connecting people with disabilities to organizations (Angular, TypeScript, RxJS).
    • Menu Guru: a customer-facing mobile app (React Native) and admin dashboard (Next.js).
    • Door: frontend features for investment due-diligence workflows (React, Redux, SCSS).
    • HR Management System: workflow and employee-data interfaces (React, Redux, Formik, Material UI).

    React, Angular, React Native, TypeScript, Redux, RxJS, Next.js, Node.js, Express, MongoDB, Material UI

  5. Nov 2014 — Mar 2016

    Rawalpindi, Pakistan (On-site)

    Web Developer · iPlex

    Full-time

    Delivered client websites end to end — responsive builds, WordPress and e-commerce sites, cross-browser compatibility, and performance optimization — working directly with clients on requirements and delivery.

    HTML5, CSS3, JavaScript, WordPress

  6. Dec 2012 — Oct 2014

    Rawalpindi, Pakistan (On-site)

    Front End Developer · Alpha Technologies Pakistan

    Full-time

    First engineering role. Built UI components and responsive, cross-browser layouts, and developed Razor (C#) templates and marketing email templates.

    HTML, CSS, JavaScript, jQuery, Razor (C#)

Capabilities

The frontend toolkit I reach for.

Weighted toward React and TypeScript, design systems, and the performance and testing work that keeps interfaces reliable at scale.

Core

  • React
  • TypeScript
  • JavaScript (ES6+)
  • Next.js
  • Redux Toolkit
  • React Query

Systems & craft

  • Design systems
  • Storybook
  • Chromatic
  • Web accessibility
  • Web performance
  • Responsive UI

Testing & tooling

  • Jest
  • React Testing Library
  • Cypress
  • Playwright
  • Webpack
  • CI/CD (Bitbucket, Azure DevOps)

Beyond the browser

  • Node.js
  • Express
  • REST APIs
  • MongoDB
  • Socket.IO
  • JWT / Auth0
  • Supabase

AI-assisted development

  • Claude
  • ChatGPT
  • Prompt engineering
  • AI pair programming
About

I care about the parts users never think about.

I'm a frontend engineer based in Rawalpindi, Pakistan, with 13+ years building fast, scalable web applications. I work mostly in React and TypeScript, and I'm comfortable across the stack with Node.js and Express when the work needs it.

Most recently, at Chalkline, I helped build a multi-tenant React + TypeScript platform serving 20+ sportsbook, casino, and lottery brands and hundreds of thousands of monthly players — building its 50+ component design system and cutting bundle size and page load time by roughly half. Before that, at PrettyLittleThing, I worked on business-critical checkout flows — payments, shipping, promotions — for one of the UK's highest-traffic retailers.

My focus is the unglamorous work that makes frontends feel effortless: architecture that scales across clients, design systems that keep teams consistent, and performance work users actually notice. Beyond code, I mentor engineers, drive architecture decisions, and care about developer experience — CI pipelines, visual regression testing, and release processes that let small teams ship multiple times a week with confidence.

I've worked fully remote with US and UK companies since 2020. I'm open to senior frontend roles — full-time or contract — with remote teams in the UK, US, Europe, Saudi Arabia, and the UAE, and available immediately.

Education

University of the Punjab

BS, Computer Science

2007 — 2012

Certifications

  • Frontend Developer (React)HackerRank · 2026
  • Google AICoursera · 2026
  • Node.js, ExpressHackerRank · 2022
  • JavaScript (Intermediate)HackerRank · 2022
  • ReactJSHackerRank · 2022
Contact

Open to senior frontend roles on remote teams — available immediately.

Based in Rawalpindi, Pakistan, working across Remote — UK · US · Europe · Saudi Arabia · UAE. The fastest way to reach me is email.