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Khairul Hasan

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Sr. Frontend Engineer (5 yrs +) - React, Redux, Next, JavaScript, TypeScript, Nodejs

Dhaka, Bangladesh

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Experience
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Wegro Logo

Senior Frontend Developer

Wegro
Dhaka, BD
Mar 2025 – Present
Current

Key Achievements

  • Engineered ERP system for 15,000+ farmers, reducing manual coordination by 30%
  • Implemented real-time tracking for 150+ field officers
  • Optimized API integration, reducing network errors by 67%

Impact Metrics

$800K+

Investment transactions processed

25%

Increase in transaction volume

Tech Stack

ReactTypeScriptAPI IntegrationReal-time Systems
Fleetblox Logo

Senior Frontend Developer

Fleetblox
Canada (Remote - Part time)
Nov 2024 – Mar 2025

Key Achievements

  • Developed AI-powered fleet management platform for 100+ companies
  • Integrated AI algorithms reducing operational costs by 15%
  • Built real-time tracking for 5,000+ fleet units

Impact Metrics

100+

Companies served

15%

Cost reduction achieved

Tech Stack

ReactReduxAI IntegrationReal-time Analytics
Anchorblock Logo

Frontend Engineer

Anchorblock Technology
Dhaka, BD
May 2023 – Feb 2025

Key Achievements

  • Refactored Anchorbooks accounting software for 500+ clients
  • Built USSD monitoring tool for 5M+ active users
  • Integrated AI for automated invoice generation

Impact Metrics

5M+

Active users supported

500+

Clients served

Tech Stack

TypeScriptReactReduxD3.js
IOTA Logo

Software Engineer

IOTA Infotech Limited
Dhaka, BD
Apr 2022 – Apr 2023

Key Achievements

  • Reduced Google Maps API usage by 40%
  • Increased social media engagement by 53%
  • Built SAAS frontend for 55,000+ employees

Impact Metrics

85%

Development efficiency improvement

40%

API cost reduction

Tech Stack

JavaScriptReactSAASAPI Optimization

Junior Software Engineer

ITGlobalOnline
Dhaka, BD
Mar 2021 – Feb 2022

Key Achievements

  • Developed REST API using Node.js & Web3.js for blockchain integration handling 500+ transactions daily
  • Improved NFT marketplace backend with Laravel to support daily active users seamlessly
  • Managed and optimized VPS servers across 5+ live platforms, ensuring 94% uptime

Impact Metrics

500+

Blockchain transactions/day

94%

Platform uptime maintained

Tech Stack

Node.jsWeb3.jsLaravelREST APIServer Management