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Jahirul Islam - Frontend Developer

I build fast, scalable web apps with React and Next.js, from AI-powered platforms to booking systems and dashboards.

Currently

  • Software Engineer (at Qtec Solution Limited)
  • Building AI-powered and booking platforms (with Next.js)
  • 2.5+ years of professional experience

Profiles

Dhaka, Bangladesh

Resume
Portrait of Jahirul Islam

About

I am Jahirul Islam (Jahir), a frontend developer from Dhaka, Bangladesh, with 2.5+ years of experience in React.js, Next.js and the modern JavaScript ecosystem.

At Qtec Solution Limited I build scalable web apps from architecture to deployment: AI-powered education features, vehicle service booking, healthcare portals and e-commerce tools. I work a lot with Redux Toolkit and RTK Query, API integrations and performance tuning, and I am familiar with Node.js, Express and MongoDB on the backend.

I like keeping things minimal: less code, fewer dependencies, and interfaces that load fast and are easy to use. I am always open to good projects and conversations, so feel free to get in touch.

Skills

Frontend
  • Next.js
  • React.js
  • JavaScript (ES6+)
  • HTML5
  • CSS3
  • SCSS
  • Tailwind CSS
  • Bootstrap
State & Data
  • Redux.js
  • Redux Toolkit
  • RTK Query
  • Axios
  • REST APIs
Familiar / Backend
  • Node.js
  • Express.js
  • MongoDB
  • AI Integration
Version Control
  • Git
  • GitHub
  • GitLab
Tools & Hosting
  • Vercel
  • Netlify
  • npm
  • VS Code
Languages
  • English (Professional)
  • Bangla (Native)

Work Experience

  1. Software Engineer · Qtec Solution Limited

    Feb 2024 – Present

    • Build responsive, production-ready web apps with Next.js, React and Tailwind CSS, from architecture to deployment.
    • Design frontend state management with Redux Toolkit and RTK Query to cache API data and cut unnecessary re-renders.
    • Developed AI-powered education features, vehicle service booking flows, healthcare portals and e-commerce tools.
    • Work with cross-functional teams to integrate REST APIs, fix performance bottlenecks and keep code quality high across multiple client projects.

Education

  • Computer Science & Engineering

    Northern University Bangladesh

    Oct 2026 – Present

  • Diploma in Engineering (Electronics Technology)

    Barguna Polytechnic Institute, Barguna

    2016 – 2020

  • Secondary School Certificate (SSC), Science

    Dema Gulishakhali Hakimia High School, Barguna

    2015 – 2016

Projects

Work

  • Amal Education

    AI-powered education platform with a chat assistant, live scheduling and a personal content library. Built course modules and live event scheduling with Next.js and Redux Toolkit.

    • Next.js
    • React.js
    • Redux Toolkit
    • Axios
    • REST API
    • SCSS
    • AI Integration
    Live

  • AutoCare

    Vehicle maintenance platform with online booking and vendor dashboards. Built service tracking, appointment booking and real-time status updates across customer and vendor panels.

    • Next.js
    • React.js
    • Tailwind CSS
    • Redux Toolkit
    • Axios
    • REST API
    Live

  • JG Healthcare Ltd

    Healthcare platform for doctor consultations, diagnostic test bookings and online medical reports. Built consultation scheduling, package booking with search filters and patient report portals.

    • Next.js
    • React.js
    • HTML5
    • CSS3/SCSS
    • REST API
    Live

  • Visabee Consultants

    Visa consultancy platform for student, spouse and visitor visas plus migration services. Built appointment booking and university liaison request portals with fast, mobile-friendly pages.

    • Next.js
    • React.js
    • HTML5
    • CSS3/SCSS
    • REST API
    Live

Personal

  • Vocal Remover

    Web app that splits any YouTube song into separate vocal and instrumental tracks using Meta's Demucs AI model. Built an async job queue with real-time progress, a synced dual-track waveform player and MP3 downloads.

    • Next.js
    • TypeScript
    • Wavesurfer.js
    • Node.js
    • Express
    • Redis/BullMQ
    • Python
    • Demucs
    • Cloudflare R2
    LiveGitHub

Latest posts

  • Indirect Proof: Contraposition, Contradiction আর Counterexample

    Direct proof কাজ না করলে contrapositive প্রমাণ করুন, অথবা উল্টোটা ধরে নিয়ে বিরোধ খুঁজুন। √2 যে irrational তার প্রমাণ, if and only if প্রমাণ, counterexample, আর “1 = 2” proof-এর ভুল কোথায়।

    Discrete Math · 6 min read · #discrete-math #proof #contradiction

  • Proof কী আর Direct Proof: যুক্তি দিয়ে প্রমাণের শুরু

    Theorem, lemma, corollary আর conjecture কী, একটা theorem আসলে কী দাবি করে, আর direct proof দিয়ে কীভাবে জোড়, বিজোড় আর rational সংখ্যা নিয়ে প্রমাণ লিখতে হয়। সাথে vacuous আর trivial proof।

    Discrete Math · 6 min read · #discrete-math #proof #direct-proof

All posts

Contact

Have a project or a question? Send a message below or email me directly at mrjahir207@gmail.com.