Nafiul Islam Tony

Frontend Lead & Full Stack Engineer

LinkedIn nafiul
From Dhaka, Bangladesh

13+ Yrs Senior/Lead Frontend Engineer. React, Vue, TypeScript, Next.js. I have helped companies in building high-load robust user-friendly applications and design systems that ship faster. Scaled consumer features to millions and led engineering teams at top startups like klikit and Pathao. Speed, stability, and high performance are my default settings

Open for Remote Work Available for Mentoring Working on Side Projects

Work Experience

klikit PTE Ltd

klikit PTE Ltd

Lead, Frontend Engineering

January 2023 - September 2025

  • Architected and scaled a production-ready UI component library using React, TailwindCSS, Storybook & Rollup, reducing UI development time by 30% across 5 engineering teams through reusable, accessible components
  • Led end-to-end development of 5 mission-critical applications (Cloud, Admin, Webshop, Reservations, Showcase) serving 3500+ stores across Indonesia, Singapore, Malaysia, and the Philippines
  • Delivered Webshop ordering platform with Stripe/Xendit payment integration in 7 weeks and Reservations MVP in 2 weeks, enabling rapid market validation and generating new revenue streams
  • Optimized application performance and scalability using React 18, Vite, Redux Toolkit, and code-splitting techniques, ensuring sub-second load times for high-traffic merchant dashboards
  • Implemented real-time features using Socket.io for live order updates, improving merchant response time by 45%
  • Established engineering best practices including comprehensive code reviews, automated testing, and CI/CD pipelines, reducing production bugs by 60%
  • Mentored 10 frontend engineers through pair programming, technical documentation, and architecture reviews, reducing onboarding time by 40% and fostering a culture of continuous learning
Pathao Ltd.

Pathao Ltd.

Staff Software Engineer

January 2022 - December 2022

  • Relaunched Pathao Points Loyalty program with Vue.js and Framework7, achieving 97% performance improvement by reducing initial load time from 7 seconds to 200ms through code-splitting and lazy loading
  • Co-architected and launched Pathao PayLater (BNPL service) in 3 weeks, onboarding 10,000+ users in the first month with Lighthouse performance scores consistently above 90
  • Built dashboards with Vue.js, Google Maps API, and Express.js, enabling real-time tracking of 50,000+ rides
  • Led backend development for Pathao Food microservices using Go and Python, architecting scalable APIs on GCP with Kubernetes and Docker to handle 20,000+ daily food orders
  • Mentored 6 engineers from different stacks through code reviews and technical workshops, reducing onboarding time by 40% and establishing frontend development standards across the organization
Pathao Ltd.

Pathao Ltd.

Senior Software Engineer

July 2018 - December 2021

  • Led a 5-engineer cross-functional team to architect and launch Pathao Shop (e-commerce platform), scaling to 5M+ active users within 6 months and processing 100,000+ monthly orders
  • Built and open-sourced Infinity Stones UI component library using Vue.js and Rollup, adopted across 20+ internal dashboards and reducing development cycles by 25%
  • Developed Atlas merchant panel, Pathao Points loyalty system, and Sherlock analytics dashboard using Vue.js, Framework7, and Tailwind, serving 50,000+ merchants and drivers
  • Collaborated with backend, QA, and DevOps teams to implement robust deployment pipelines, achieving 99.9% uptime across all consumer-facing applications
  • Delivered high-impact features in partnership with product and design teams, improving user retention by 15% and increasing average session duration by 20%
Widespace Bangladesh Ltd. (Acquired by Azerion AB)

Widespace Bangladesh Ltd. (Acquired by Azerion AB)

Software Engineer

July 2014 - June 2018

  • Architected and delivered 8+ full-stack applications from scratch using React, Vue, Laravel, and Node.js, serving millions of ad impressions daily across global markets
  • Improved application performance by 40% through optimization, and efficient state management in React & Vue ecosystems
  • Rapidly delivered complex features under tight deadlines while mastering new technologies including Docker, MongoDB, and modern build tools (Webpack, Gulp)
  • Took ownership of critical ad-tech projects (AdBuilder, Coach, Wagon), maintaining high development standards and ensuring 99.9% uptime for client-facing systems
  • Collaborated with Swedish teams to ship scalable features in Laravel & VueJS, optimizing rendering and load times by 20%
Enosis Solutions

Enosis Solutions

Software Engineer

July 2012 - June 2014

  • Mastered hybrid mobile application development using jQuery Mobile & Apache Cordova, delivering 3 production apps on aggressive timelines while learning new technologies
  • Became technical spokesperson for e21 Mobile CRM project, effectively training 4 new team members and maintaining comprehensive documentation for knowledge sharing
  • Led development of iPass Kiosk (WPF), which became an instant success and was deployed across client headquarters, handling 1000+ daily check-ins
  • Efficiently managed multiple large-scale projects (iTrak, iPass Kiosk, e21 Mobile) simultaneously, consistently meeting tight client deadlines through effective prioritization

Education

University of Dhaka

Master of Science in Computer Science & Engineering

University of Dhaka

October 2012 - December 2014

University of Dhaka

Bachelor of Science (Honours) in Computer Science & Engineering

University of Dhaka

March 2008 - August 2012

Projects

klikit Cloud

klikit Cloud
Company

klikit PTE Ltd

Role

Team Lead, Architect, Developer

Type

Web App

Technologies
React
Vite
Tailwind
Redux
Formik
Apexcharts
Stripe
Xendit
Socket.io
Localization
Sentry

klikit Admin

klikit Admin
Company

klikit PTE Ltd

Role

Team Lead, Architect, Developer

Type

Web App

Technologies
React
Vite
Tailwind
Redux
Formik
Apexcharts
Stripe
Xendit
Socket.io
Localization
Sentry

Webshop

Webshop
Company

klikit PTE Ltd

Role

Team Lead, Developer

Type

Web App

Technologies
React
Vite
Tailwind
Redux
Formik
Apexcharts
Stripe
Xendit
Socket.io
Localization
Framework7
Sentry

Reservations

Reservations
Company

klikit PTE Ltd

Role

Team Lead, Developer

Type

Web App

Technologies
React
Vite
Tailwind
Redux
Formik
Apexcharts
Stripe
Xendit
Socket.io
Localization
Framework7
Sentry

Showcase

Showcase
Company

klikit PTE Ltd

Role

Team Lead, Developer

Type

Web App

Technologies
React
Framework7
Tailwind
Redux
Localization
Sentry

Pathao Food

Pathao Food
Company

Pathao Ltd.

Role

Team Lead, Developer

Type

Backend Micro-services

Technologies
GoLang
Python
PostgreSQL
Redis
Docker
Kubernetes
GCP
Sentry
Grafana

Pathao PayLater

Pathao PayLater
Company

Pathao Ltd.

Role

Team Lead, Developer

Type

Mobile App WebView

Technologies
Vue
Vuex
Framework7
Tailwind
Webpack
Sentry

Pathao Shop

Pathao Shop
Company

Pathao Ltd.

Role

Team Lead, Developer

Type

Mobile App WebView

Technologies
Vue
Vuex
Framework7
Tailwind
Webpack
Sentry
Elasticsearch

Atlas - Pathao Merchant Panel

Atlas - Pathao Merchant Panel
Company

Pathao Ltd.

Role

Team Lead, Developer

Type

Mobile App WebView

Technologies
Vue
Vuex
Chart.js
Hapi
MySQL
Tailwind
Webpack
Sentry

Ultron - Pathao Shop Admin

Ultron - Pathao Shop Admin
Company

Pathao Ltd.

Role

Developer

Type

Web App

Technologies
Vue
Vuex
ExpressJS
MySQL
Hapi
TypeScript
Tailwind
Webpack
Sentry

Pathao Points

Pathao Points
Company

Pathao Ltd.

Role

Team Lead, Developer

Type

Mobile App WebView

Technologies
Vue
Vuex
Framework7
Tailwind
Webpack
Sentry

Anubis - The Pathao RBAC

Anubis - The Pathao RBAC
Company

Pathao Ltd.

Role

Developer

Type

Web App

Technologies
Vue
Vuex
ExpressJS
MySQL
TypeScript
Tailwind
Webpack
Sentry

Alexander

Alexander
Company

Pathao Ltd.

Role

Team Lead, Developer

Type

Web App

Technologies
Vue
Vuex
Google Maps
ExpressJS
Tailwind
Webpack
Sentry

Sherlock

Sherlock
Company

Pathao Ltd.

Role

Team Lead, Developer

Type

Web App

Technologies
Vue
Vuex
Chart.js
Tailwind
Webpack
Sentry

Admiral

Admiral
Company

Pathao Ltd.

Role

Developer

Type

Web App

Technologies
Vue
Vuex
Google Maps
Chart.js
Tailwind
Webpack
Sentry

Infinity Stones

Infinity Stones
Company

Pathao Ltd.

Role

Developer

Type

Web App

Technologies
Vue
Vuex
Rollup
Tailwind
Webpack
Sentry

Invoicing For Widespace

Invoicing For Widespace
Company

Widespace Bangladesh Ltd.

Role

Developer

Type

Web App

Technologies
Vue
Vuex
Chart.js
Laravel
MySQL
AWS
Webpack
Git

Widespace Reports

Widespace Reports
Company

Widespace Bangladesh Ltd.

Role

Developer

Type

Web App

Technologies
Laravel
MySQL
Docker
D3
Sass

Widespace Wagon

Widespace Wagon
Company

Widespace Bangladesh Ltd.

Role

Developer

Type

Web App

Technologies
Vue
AWS
Webpack
Chart.js
Git
Laravel
MySQL
Docker
Sass

Coach

Coach
Company

Widespace Bangladesh Ltd.

Role

Developer

Type

Web App

Technologies
Vue
Sass
D3
Gulp
Laravel
MySQL
Docker

AdBuilder 2.0

AdBuilder 2.0
Company

Widespace Bangladesh Ltd.

Role

Developer

Type

Web App

Technologies
CodeIgniter
Sass
MySQL
Homestead

AdBuilder

AdBuilder
Company

Widespace Bangladesh Ltd.

Role

Developer

Type

Web App

Technologies
React
AngularJS
Jade
MongoDB
NodeJS
Handlebars
Gulp

AdFormats

AdFormats
Company

Widespace Bangladesh Ltd.

Role

Developer

Type

Web App

Technologies
ES5
Handlebars
CodeIgniter
MySQL

iTrak

iTrak
Company

Enosis Solutions

Role

Developer

Type

WinForms App

Technologies
WinForms
Windows Service
TFS
Asp.NET MVC
Telerik
SAP Crystal Reporting
SVN

iPass Kiosk

iPass Kiosk
Company

Enosis Solutions

Role

Developer

Type

WPF App

Technologies
WPF
Windows Service
TFS
Asp.NET MVC

e21 Mobile CRM

e21 Mobile CRM
Company

Enosis Solutions

Role

Developer

Type

Hybrid Mobile App

Technologies
jQuery Mobile
Cordova
Ant
WebSQL
SOAP

Skills

I already know

React
Vue
Next.js
TypeScript
Framework7
Astro
NodeJS
PostgreSQL
MySQL
MongoDB
Apexcharts
Docker
Tailwind
Redux
RTK Query
Vuex
Formik
Stripe
Xendit
Socket.io
Localization
Chart.js
Laravel
Jest
React Testing Library

I want to revisit

Asp.NET MVC
ExpressJS
Laravel
CodeIgniter
WPF
AngularJS
NestJS
Elasticsearch
NuxtJS
AWS
GCP
Kubernetes

I want to learn

Python
GoLang
GraphQL
Solidity
DeFi
Solana
Model Context Protocol

I speak

English - C1