Shazzadul
Islam Shakib
Passionate Full-Stack Developer specializing in MERN stack but Stack doesn't matter to me. Love to see the solution of a problem in visual.
Who I Am
A little bit about me and my journey as a developer.
I'm Shazzadul Islam Shakib, a passionate Full-Stack Developer with a strong commitment to building modern, scalable web applications. I specialize in the MERN stack and PostgreSQL.
My approach combines elegant front-end experiences with efficient, secure back-end logic. I'm always excited to embrace new technologies and deliver impactful solutions that make a real difference.
When not coding, I'm studying how to escape infinite bug loops. Actually for hire.
Tech Stack
Focused stacks grouped into clean, modern skill panels.
Backend
Tools & DevOps
Featured Work
A selection of projects I've built from concept to deployment.
Extrack
A full-stack personal finance tracker — cash, bank, savings and debt in one dashboard.
Accord-AI
A real-time chat platform where users join or create topic-based rooms for focused discussions. Features instant messaging, message deletion, online user tracking, and AI-generated chat summaries via OpenAI API.
Raptor Tech Landing page
Landing page for Raptortech Ltd.
My Journey
Where I've worked and what I've built along the way.
Software Engineer
- Rebuilt the company website as a full-stack Next.js monolith (SSR + SSG) with a Node.js/Express and MongoDB backend, adding dynamic Framer Motion animations and improving performance and maintainability over the legacy stack.
- Architected separate frontend rendering and data-fetching strategies for B2B and B2C surfaces, improving Core Web Vitals and reducing bundle size for each audience.
- Designed and implemented role-based access control (RBAC) for the admin dashboard, restricting features and data views by user role.
- Implemented pagination and infinite scroll for high-volume data views, reducing initial payload size and improving perceived performance.
- Designed a multi-tenant API architecture that resolves subdomain and organization name into tenant context on every request, enabling a single codebase to securely serve multiple organizations.
- Optimized the B2C application to reliably support 1,000+ concurrent users, resolving rendering and data-fetching bottlenecks under load.
Fullstack Developer
- Automated Swagger documentation for the entire backend, covering 1,000+ API endpoints, improving API discoverability, consistency, and onboarding efficiency across a modular architecture.
- Designed and implemented an end-to-end Manual Order Creation & Verification system, extending the existing order module with approval/rejection flows while preserving legacy business logic and ensuring audit-friendly state transitions.
- Built a guided admin dashboard workflow for manual order creation and verification using Next + Zustand, managing complex multi-step state to reduce user errors and ensure a consistent, aligned UI/UX.
- Integrated Cashfree Payment Gateway webhooks with secure signature verification and idempotent processing to accurately sync payment status with order lifecycle in real time.
- Collaborated closely with product and backend teams to align business requirements with technical design, delivering scalable and production-ready solutions.
Frontend Engineer
- Developing a mortgage and loan management SaaS platform for the UK market to handle user, financial, and property data with automated checks.
- Developed a SaaS CRM for restaurants, allowing owners to manage menus, tables, reservations, promotions, and handle customer interactions via a WhatsApp chatbot with real-time chat updates in dashboard.
- Proposed and implemented tab-based navigation to replace manual button clicks, improving usability and enhancing user flow.
- Implemented internationalization (i18n) with next-intl in a Next.js application, enabling multi-language support and improved global user accessibility.
- Actively participated in code reviews and knowledge sharing, helping ensure clean, maintainable code across the team.
Frontend Developer
- Developed key features for a SaaS web application, improving functionality and user experience.
- Integrated an AI-powered chatbot that allows users to book calls and request land details, providing automated support and real-time assistance.
- Collaborated with the team to maintain clean, reusable, and scalable frontend code.
Latest Posts
Thoughts, tutorials, and notes from my journey.
Blog posts coming soon!
Thoughts, tutorials and insights will be published here.
Let's Talk
Have a project in mind? Let's build something amazing together.
Get In Touch
Whether you have a new project, a question about technology, or just want to say hi — my inbox is always open!
Location
Bangladesh 🇧🇩


