Raihan Hafiz
@raihanhafiz
Senior Full-Stack Engineer and Blockchain developer delivering scalable Web3, AI, and full-stack solutions.
What I'm looking for
I am a Senior Full-Stack Engineer and Blockchain Developer with 10 years of hands-on experience building high-performance web, mobile, AI, and blockchain applications across fintech, marketplaces, gaming, and Web3. I lead end-to-end development from smart-contract engineering and audits to scalable backend systems and polished frontends, delivering secure, reliable, user-centric products and optimized performance improvements.
I have managed cross-functional teams and budgets, executed DevOps and CI/CD strategies, and shipped production-ready smart contracts and DApps. My accomplishments include architecting EVM-based yield farming systems, preventing critical smart-contract vulnerabilities through audits, reducing customer churn via feature enhancements, and improving application performance through caching and database optimization.
Experience
Work history, roles, and key accomplishments
Senior Full-Stack Engineer
Prowlis
Jan 2023 - Present (2 years 11 months)
Managed end-to-end development of an EVM-based yield farming and staking ecosystem, led smart-contract audit cycles and coordinated cross-functional Web3, backend, frontend, and DevOps teams to ensure secure DApp deployments.
Blockchain Developer
Freelance
Jan 2020 - Present (5 years 11 months)
Built and deployed production smart contracts and full Web3 platforms for DeFi, NFT, DAO, staking, and governance use cases and conducted audits that prevented critical vulnerabilities.
Led full-stack development and cloud infrastructure projects using React, Next.js and NestJS, implemented containerization and CI/CD pipelines, and improved application performance through caching and database optimization.
Senior Full-Stack Engineer & DevOps Lead
WiraTech
Jan 2020 - Jan 2023 (3 years)
Led a 25-person engineering and UX organization, managed budgets up to $4.5M, and delivered eight feature releases that reduced customer churn by 20% while implementing scalable architectures and CI/CD pipelines.
Project Manager
101 Blockchains
Jan 2018 - Jan 2023 (5 years)
Managed projects focused on blockchain education and initiatives, coordinating resources and delivery to support training and certification programs between 2018 and 2023.
Frontend Developer
DhiWise
Jan 2018 - Jan 2020 (2 years)
Developed responsive, high-performance interfaces using Vue.js, optimized reusable component libraries and improved UI rendering speed for seamless API integration.
Education
Degrees, certifications, and relevant coursework
Online Certified Blockchain Expert
Certified Blockchain Expert, Blockchain
2015 - 2016
Completed an online Certified Blockchain Expert program to gain practical knowledge in blockchain development and smart-contract engineering.
Universitas Kristen Petra
Bachelor of Information Technology, Information Technology
2008 - 2014
Grade: GPA 3.8/4.0
Completed a Bachelor of Information Technology with a strong academic record (GPA 3.8/4.0) focusing on information technology fundamentals and application development.
freeCodeCamp
Full Stack Development Certification, Full Stack Development
Completed Full Stack Development Certification coursework and projects through freeCodeCamp to strengthen web development skills.
Tech stack
Software and tools used professionally
Stream
Google Tag Manager
Stripe Billing
Blockchain
AWS Chatbot
Chatfuel
Amazon EC2
Google Cloud Platform
DigitalOcean
MongoDB Cloud Manager
GitHub
GitLab
GitHub Enterprise
Chat by Stream
Kubernetes
Cloudflare
Amazon CloudFront
Jenkins
GitHub Actions
GitLab CI
Salesforce
React Native
Flutter
LiveChat
Chatwoot
Chatlio
Pandas
MongoDB Compass
PostgreSQL
MongoDB
Amazon Route 53
Mailchimp
Gmail
Freshchat
Sentry
Nextcloud
Vue File Agent
Google Fonts
Node.js
Django
Laravel
Android SDK
Next.js
NestJS
Tailwind CSS
Bootstrap
Nuxt.js
Material-UI
Vuetify
Bootstrap Vue
Vue CLI
Google Analytics
NextUX
Slack
Microsoft Teams
RocketChat
HipChat
Chatra
Terraform
Android Studio
PhpStorm
Jira
Vue Router
React Helmet
Jest
Mocha
React
Vue.js
jQuery
Svelte
Preact
React Query
React-Vue
vue-next
Vue Material
JavaScript
Python
HTML5
Java
CSS 3
PHP
C#
Swift
Go
phpPgAdmin
PreVue
TensorFlow
PyTorch
Tensorflow Lite
Google Maps
HubSpot
FastAPI
SwiftUI
MongoDB Atlas
MongoLab
React Storybook
Vue-model
Next Release
Android OS
Stripe
PayPal
phpMyAdmin
Amazon RDS for PostgreSQL
PaaS DB PostgreSQL
Heroku Postgres
Azure Database for PostgreSQL
Google Workspace
Trello
GraphQL
Prisma
Google reCaptcha
AWS Lambda
The Top Chat
Zustand
vuex
GitHub Pages
GitLab Pages
Kafka Streams
TypeScript
React Testing Library
Visual Studio Code
GitHub CLI
Mailgun
Amazon Cognito
Git
Docker
React VR
NGINX
ReactPHP
Zapier
Postgres.js
ReactXP
DigitalOcean Spaces
Cake (C# Make)
ReactNativeEverywhere
DigitalOcean Managed MongoDB
VulcanNext
Google BigQuery
MobX
Amazon Web Services (AWS)
NetSuite
Adobe After Effects
Android Jetpack
Solidity
Google Ads
CakePHP
Ethers.js
React Sketch.app
Integromat
Gitter
SwayChat
Mongoose
React Router
SvelteKit
MLC LLM
Nextflow
NextUI
Web3.js
SvelteFlow
Solana
Nextiva
NVIDIA TensorRT-LLM
Tera
LLMWare
Availability
Location
Authorized to work in
Salary expectations
Social media
Job categories
Skills
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