I will redesign, upgrade, and optimize your existing site

I
ishere_zahin
I
ishere_zahin
Zahin
redesign, upgrade, and optimize your existing site
redesign, upgrade, and optimize your existing site
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Full Screen
Full Screen
redesign, upgrade, and optimize your existing siteredesign, upgrade, and optimize your existing siteredesign, upgrade, and optimize your existing siteredesign, upgrade, and optimize your existing site

About this gig

Are you losing visitors because your website is too slow, looks outdated, or runs on legacy code?


Don't spend thousands building from scratch. I will supercharge your existing application into a fast, modern, and highly secure web app that scales.


What I Offer:

  1. UI/UX Redesign: Clean, premium, and fully responsive layout.
  2. Performance Optimization: Boost Google PageSpeed Insights & Core Web Vitals.
  3. Code Upgrades: Migrate legacy code, upgrade frameworks, or optimize slow queries.
  4. Feature Integration: Dashboards, payment gateways, APIs, or new elements.
  5. Bug Fixing: Eliminate broken links, fix layout shifts, and clean technical debt.


Tech Stack:

Frontend: React, Next.js, Vue.js, Tailwind CSS, JavaScript, Typescript

Backend & Database: Node.js, Express, Laravel, Go, MongoDB, PostgreSQL, MySQL


Why Work With Me?

As a full-stack developer, I optimize the code engine underneath while giving it a fresh look. You get clean, documented code and fast delivery.


Please message me with your website link before ordering so we can discuss requirements!

  • Website type

    • E-Commerce store

  • Programming language

    • Go
    • React
    • Vue.js
    • Node.js
    • Other

  • Website features

    • Customer support
    • Inventory
    • Analytics
    • Chat
    • Booking
    • Portfolio
    • Dashboard
    • Landing page
    • Blog
    • Admin Panel
Respect third-party rights

Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.

Get to know Zahin

Zahin

Software Engineer Go NextJs ReactJs Laravel Specialist

  • FromBangladesh
  • Member sinceJun 2026
  • Avg. response time1 hour

  • Languages

    English, Spanish
I'm Zahin, a Full Stack Engineer with 4+ years of experience building SaaS products, business applications, and scalable web platforms. I've worked on 60+ real-world applications, including 7+ SaaS products, using Go, Next.js, React, Laravel, TypeScript, PostgreSQL, MongoDB, MySQL, AWS, and Docker. I focus on clean architecture, performance, and scalable systems, turning complex ideas into reliable software solutions. If you're looking for someone who can transform ideas into well-engineered products, I'd be happy to help.

My Portfolio

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