Fig. 01 · Terrain
Arshahdul Ahmed

Arshahdul Ahmed

Full-stack developer · Co-founder, Webrizen AI Labs

Full-stack developer (Next.js, React, Node.js) with 5+ years of paid client work, starting freelance at age 15. I build and ship production web apps, including payment gateways, real-time features and LLM integrations.

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5+
Years shipping
20+
Client projects
7
Products built
SIH
Grand finalist '24
01

Now

Updated Oct 2026

Building Operant at Webrizen, studying for my BCA, and learning ML from first principles.

02

About

Currently pursuing a BCA at Siliguri College while co-running Webrizen AI Labs, a software company in Patna with its own product suite. Open to internships and part-time developer roles.

Completed Harvard's CS50 and CS50 AI, and I apply what I learn directly in AI-powered projects.

Work
03

Products

7 built
SaaS / Business Management

Operant

Built a business management platform for Indian service firms (CA/CS firms, agencies, studios and consultancies)

Next.js / Razorpay / RBAC / Audit Logging
  • Shipped GST invoicing with CGST/SGST or IGST, HSN/SAC codes and Razorpay pay links
  • Built a client portal for requests, quotes, projects and invoices with passwordless sign-in
  • Added projects, milestones, team chat, leave approvals and onboarding checklists, with Mumbai-hosted data, role-based access and an audit log
Restaurant Tech / POS

Scan My Order

Built a multi-platform ordering and POS suite for restaurants

Next.js / Real-time / QR Ordering / POS / KDS
  • Implemented QR table ordering, instant waiter calls and a live kitchen display system (KDS)
  • Added external integrations so restaurants can plug the suite into their existing tools
BioTech / Dev Tool

Nuxron

Built a privacy-first computational biology platform running entirely in-browser with zero server dependencies

Next.js / TypeScript / Web Workers / Monaco Editor / IndexedDB
  • Implemented DNA/FASTA editor with syntax highlighting, 2D/3D genomic visualizations, and protein folding simulations
  • Offloaded compute-intensive bioinformatics tasks to Web Workers, keeping UI thread responsive for datasets up to 10MB
  • Developed a client-side biosecurity scanner to flag potentially hazardous sequences before export
Identity & Security

Webrizen SSO

Built a single sign-on identity provider shared by every Webrizen AI Labs product

OpenID Connect / Passkeys (WebAuthn) / TOTP 2FA / Next.js SDK
  • Supported passkeys, passwords, email codes, Google sign-in, device PINs and TOTP two-factor
  • Modelled organizations, teams and unlimited custom roles that carry across all Webrizen apps
  • Exposed standard OpenID Connect plus a drop-in Next.js SDK, with breached-password checks, rate limiting and an audit log
Developer APIs

Chronon

Built and host a set of free, open-source utility APIs, authenticated with Webrizen SSO accounts and API keys

REST API / JSON / API Keys / Rate Limiting
  • Launched with a regional menus API of 146 hand-curated dishes from 16 regions in 6 countries
  • Free tier of 60 requests/min and 50,000/month with open CORS and plain HTTPS + JSON, no SDK needed
  • Versioned contract where /v1 never breaks and breaking changes ship as /v2
Developer Tools / VS Code Extension

Rapid Requiem

Built a lightweight, local-first REST client that lives inside VS Code

VS Code API / TypeScript / REST API
  • Lets developers test APIs without browser CORS limits, cloud accounts or context switching
  • Keeps request history and collections on the developer's machine
Productivity / Privacy

LockNotes

Built an encrypted, privacy-first workspace for private notes

Encryption / Web App
  • Designed so sensitive notes stay readable only by their owner
04

Client work

9 shipped
Hospitality

Patna Water Park

Built the destination site for North India's largest wave pool, covering rides, cabanas, dining and bookings

Next.js / Node.js / MongoDB / WebSockets / PWA
  • Built a real-time WebSockets ticket booking system for peak-weekend traffic
  • Integrated Razorpay payment gateway for ticketing and cabana reservations with automated confirmation emails
  • Achieved 95+ Lighthouse performance score with full PWA offline support and push notifications
Agency Website

Webrizen AI Labs

Designed and built a flagship agency website with bold editorial design and WebGL-powered 3D visuals

Next.js / GSAP / Three.js
  • Implemented GSAP scroll-driven animations achieving smooth 60fps performance across devices
  • Showcases the product suite, services, client work and a blog, with a clear services and contact flow
Fintech

RPay (rpay.sa)

Built a marketing website for a Saudi Arabian digital payment platform with RTL layout and KSA branding compliance

Next.js / Tailwind CSS / Node.js
  • Optimized for Arabic-first rendering with bilingual EN/AR content support
SaaS / Event Tech

Invite Online (Invitoz)

AI-powered event invitation platform with a free-forever, ad-free, no-signup model (built at Innovedika)

Next.js / AI/LLM / Tailwind CSS / Firebase / Vercel
  • Built real-time RSVP tracking, guest management, shared media albums, AI task lists, and expense splitting
  • Reduced average event setup time from 15 minutes to under 3 minutes through AI-assisted templating
Beauty & Wellness

H2O Salon

Developed a luxury multi-branch salon website with cinematic loading sequences and animated service showcases

Next.js / Framer Motion / Three.js
  • Built a 3D card carousel gallery with Framer Motion transitions for immersive portfolio browsing
  • Integrated online booking system connecting to salon's scheduling backend
Hospitality

Sri Shubh Hari Fun & Resort

Built a single destination site bringing together resort stays, a water park and garden event spaces

Next.js / Tailwind CSS
  • Designed flows for planning either a getaway or a celebration from one place
Wellness

Revive Hydration

Built a wellness platform for IV hydration therapy with treatment menus and custom drips

Next.js / Tailwind CSS
  • Designed a booking flow focused on reassuring first-time clients
Interior Design

Tirupati Interior Design

Built a full-service website for a Patna-based luxury interior firm with modular kitchen and 3D room previews

Next.js / Tailwind CSS / SEO
  • Implemented geo-targeted SEO strategy, ranking page 1 for local interior design keywords within 2 months
  • Designed an interactive project gallery with category filtering and before/after sliders
Health Editorial

Healthcare Biodiversity

Built and maintained a long-running editorial platform on biodiversity, Ayurveda, and human health

WordPress / PHP / OneSignal
  • Implemented OneSignal push notifications, growing subscriber base to 2,000+ readers
  • Developed custom WordPress theme and SEO strategy driving consistent organic traffic
05

Experience

  1. Innovedika Inc (Invitoz.com) · Software Engineer2025
    • Built real-time RSVP tracking, guest management, shared media albums and expense splitting
    • Integrated LLM-based task lists and AI-assisted templates, cutting event setup time from ~15 min to under 3 min
    • Reduced frontend bundle size by ~30% with dynamic imports and tree-shaking
  2. Webrizen AI Labs · Co-Founder & Director2023 – Present
    • Built the company's product line: Operant, Scan My Order, Webrizen SSO, Chronon, Rapid Requiem and LockNotes
    • Delivered 10+ production websites for clients in hospitality, entertainment, wellness, fintech, beauty and interior design
    • Handled projects end to end: scoping, development, deployment and post-launch support
    • Built a reusable component library and starter templates, reducing new project setup time by ~40%
  3. Vijetha Softwares Pvt. Ltd. · Full Stack Developer2023 – 2024
    • Developed 5+ client web applications across e-commerce, education and services
    • Migrated legacy client sites to React, reducing page load times by ~45%
  4. Reactjsofficial · Web Developer2022 – 2023
    • Built the platform's full website, including course management and payment gateway integration
    • Developed course pages, interactive coding labs and React component demos used by 500+ students
  5. Upwork, Truelancer & direct clients · Freelance Developer2021 – Present
    • Completed 20+ client projects with 5-star ratings, from requirements through delivery and revisions
    • Started with content writing, video editing and graphic design before moving into full-stack development
06

Hackathons

Grand Finalist2024

Aapda — Advanced Flood Management System

Smart India Hackathon (SIH) 2024 — 7th Edition

Next.js / Node.js / Python / IoT / GIS

Participant2024

DevConnect

JSM 1 Million Subscribers Hackathon

Next.js / Appwrite / Tailwind CSS / TypeScript

Participant2026

SpinFlame

DEV Weekend Challenge: Passion Edition

Phaser 3 / Matter.js / TypeScript

07

Skills

Frontend

  • Next.js
  • React
  • React Native
  • TypeScript
  • JavaScript
  • Astro
  • Tailwind CSS
  • Framer Motion
  • GSAP
  • Three.js
  • WebGL

Backend & DB

  • Node.js
  • PHP
  • PostgreSQL
  • SQLite
  • Supabase
  • Firebase
  • MongoDB
  • Clerk
  • REST APIs

Design & Tools

  • Framer
  • Figma
  • Canva
  • Photoshop
  • Illustrator
  • Premiere Pro
  • After Effects
  • Lightroom
  • WordPress
  • VS Code
  • Vite
  • Excel
  • Word
  • PowerPoint

AI & APIs

  • Google Gemini API
  • LLM Integration
  • Python (AI/ML)
  • Web Workers
  • IndexedDB
08

Education

  • Bachelor of Computer ApplicationsSiliguri College, West Bengal2025 – Present
  • Senior Secondary EducationDelhi Public School2023 – 2025
  • Secondary Education (AISSE)Kendriya Vidyalaya2022 – 2023

Certificates

  • CS50's Intro to Artificial Intelligence · Harvard University (Online)2026
  • CS50's Intro to Computer Science · Harvard University (Online)2025
  • React Foundations · Next.js (Vercel)Jun 2025
  • Next.js App Router Fundamentals · Next.js (Vercel)Aug 2025
  • SEO · Next.js (Vercel)Sep 2025
  • Social Media Marketing · HP LIFE | HP FoundationAug 2026
  • Professional Networking for Career Growth · HP LIFE | HP FoundationAug 2026
Life
09

Off the clock

On repeatKun Faya Kun
05Songs04Books05Anime05Movies05Wishlist03Friends
10

Contact

Have an idea? Let's build it properly.

Write to arshahdul99@gmail.com or DM @arsh_jsx on X.