I’m a Senior Developer specialising in Frontend, Web3 and Mobile

About me
I'm Sajjad Javadi
Senior Frontend Developer with 6+ years of experience delivering production-grade web applications for enterprise and startup clients. I specialize in React, Next.js, and SSR architecture — with deep hands-on Web3 expertise across DEX development, NFT marketplaces, and wallet integrations using ethers.js, wagmi, and viem. I've shipped products serving 10,000+ active users and am available for remote roles worldwide.
Hello!
Some of Technologies I’ve been
working with recently
React
Next.js
HTML5
CSS3
Sass
Less
JavaScript
TypeScript
Redux
Webpack
Blockchain
Ethereum
Web3.js
Material-UI
Tailwind
Dart
Flutter
Node.js
Git
GitHub
GitLab
Figma
Java
Kotlin
Android Studio
PHP
CodeIgniter
MySQL
Firebase
Some of My Projects
24
24
NovaVoya
Multilingual medical tourism platform connecting patients with verified international healthcare providers. Built with Next.js 15 and React 19, featuring interactive provider maps, referral management, and a multi-role admin dashboard with next-intl localization.
Nextjs
Reactjs
Tailwind
Docker
23
23
Kanata Health
Full website for a Canadian health-focused company built with Framer, including custom React/TypeScript code components integrated directly into Framer for dynamic functionality beyond standard no-code capabilities.
Framer
Reactjs
TypeScript
22
22
Taronga Zoo
Production website for one of Australia's most recognized conservation zoos. Built with Next.js and Storybook-based CMS integration, enabling scalable content management with optimized SSR performance and SEO-friendly rendering.
Nextjs
CMS
Storybook
21
21
Tourism Tasmania
Official state tourism platform for Tasmania, focused on brand management and tourism demand generation. Built with Next.js and Storybook-based CMS integration, with strong emphasis on SEO and content delivery performance.
Nextjs
CMS
Storybook
20
20
Elders Weather
Australia's national weather forecast platform, serving time-sensitive data to a large daily audience. Built with Next.js and Optimizely CMS, with a Storybook-based component system. Optimized for fast load times and reliable content updates at scale.
Nextjs
Optimizely
Storybook
19
19
Salvation Army Australia
Production website for one of Australia's largest charitable organizations. Built with React and a Storybook-based component system with CMS integration, ensuring design consistency and scalable content management across the platform.
Reactjs
Nextjs
CMS
Storybook
18
18
StoryFont
Landing page for a font discovery platform, built with Next.js. Focused on clean UI, smooth interactions, and fast rendering to drive user engagement.
Nextjs
17
17
CreativeBug
High-performance marketing site delivered on a 2-month contract engagement. Built fully custom hover and pointer animations from scratch without third-party animation dependencies.
Reactjs
CSS
Animations
16
16
Spacesix
NFT marketplace for a blockchain-based game, allowing users to browse and purchase in-game assets directly on-chain. Built with React and Next.js with full Web3 integration.
Reactjs
Nextjs
15
15
MorsFarm
Discover exclusive airdrops, participate in social farming campaigns
Nextjs
Reactjs
14
14
TapCrystal
Telegram-based Tap-To-Earn application serving 10,000+ active users, with responsive UI and preparation for blockchain integration.
Reactjs
13
13
Archie
Archie Agency's team introduction website. Built with React and Next.js, focused on SEO and email system integration.
Reactjs
Nextjs
12
12
DIACO
An innovative blockchain-based platform where you can explore the fascinating gold market.
Reactjs
Web3
Blockchain
11
11
Voomio
Develop a part of Voomio front website.
Reactjs
10
10
Presence Absence
Administrative panel for Azad University students, faculty, and staff with role-based access control, enabling attendance tracking, scheduling makeup classes, and other administrative workflows.
Reactjs
09
09
ChatQST
AI token platform website built with React and Next.js, serving as the front for a blockchain AI project.
Reactjs
Nextjs
08
08
Bitrogen
Bitrogen, Is a digital currency and signals application. In this project I developed a mobile application and a PWA version for browsers.
Flutter
07
07
Keyfx
Real-time trading dashboard built with React and REST API integration for a UK-based financial client, optimized for data-heavy UI performance and real-time data reliability.
Reactjs
06
06
DEX
Decentralized exchange enabling users to create liquidity pools and swap tokens. Built with Next.js and integrated with ethers.js, wagmi, and viem for on-chain interactions.
Nextjs
Web3
Blockchain
05
05
Ideaalsho
Discover the perfect personal hairstyle.
Nextjs
Reactjs
Flutter
04
04
BullRun
Developing BullRun which is an online multiplayer decentralized gambling game consisting of an increasing curve that can crash anytime..
Flutter
PWA
03
03
Snotes
Snotes, Is a note and to-do application.
Android
Kotlin
02
02
Benevis
Develop a social media application for authors to share their own stories and writings. In this project, I had the experience of working with server programming and the Codeigniter framework.
Android
Java
Kotlin
PHP
01
01
Saniar24
Saniar24, was a tourism and shop application.
Android
Java
Any Idea?
Any Project?
If you've got a fantastic idea or an exciting project that's been brewing, I'd love to hear about it! Whether you're looking for a creative partnership, want to discuss a potential opportunity, or just want to have a friendly chat, I'm all ears. Let's turn those ideas into something amazing, together!