Welcome to my portfolio
Oussama Hammach
Full-Stack Software Engineer | Blockchain & Web3 Specialist | Cybersecurity Expert
Building scalable, secure, and innovative solutions across web, blockchain, and cybersecurity domains. With expertise in React, Next.js, Node.js, Solidity, and modern cloud technologies, I transform ideas into production-grade applications.
Professional Journey
Experience
Offensive Cybersecurity Consultant & Cybersecurity Engineer
Devoteam
IoT-based secure file transfer system using embedded device authentication, encrypted communication channels, and centralized policy control.
Integrated edge devices with backend services to enable secure data exchange and real-time audit logs.
Cybersecurity GRC Automation Engineer
Sekera
Automation of Cybersecurity KPIs collection and analysis for continuous security monitoring and risk assessment.
Developed SecureBox: blockchain-based encryption solution with hardware wallet integration for secure digital asset management.
Web3 & Blockchain Smart Contracts Developer
Fiverr
Delivered 50+ custom Ethereum smart contracts including ERC-20 tokens, staking pools, and NFT minting contracts.
Audited and optimized Solidity contracts for gas efficiency and security vulnerabilities.
3D NFT Automation Developer
Digital Finance International
Automated the creation of 3D NFTs in Blender using Python, streamlining the workflow and enhancing efficiency in digital asset production.
Developed automated scripts for batch processing of 3D models and metadata generation for blockchain deployment.
AI & AR/VR Developer
Bank Al-Maghrib
Developed RAG chatbot for secure internal knowledge management with multi-agent systems.
Created AR-based maintenance solutions for Microsoft HoloLens 2 for personnel training.
Graphic Designer
Kuaishou Technology
Designed visual assets and UI components for digital products.
Collaborated with cross-functional teams to deliver high-quality creative solutions using Adobe XD.
Graphic Designer
Club D'Innovation EMSI RABAT
Created innovative graphic designs and branding materials for club events and projects.
Utilized Adobe Illustrator, Photoshop, and other design tools to produce compelling visual content.
Expertise
Technical Skills
Languages
Frontend
Backend & APIs
Databases
Blockchain & Web3
Tools & DevOps
Portfolio
Featured Projects
NFT Marketplace Platform
Full-stack NFT marketplace with React frontend, Node.js backend, ERC-721/ERC-1155 smart contracts, and IPFS integration for metadata storage.
DeFi Staking Pool
Complete DeFi staking solution with ERC-20 token staking, rewards mechanism, Hardhat testing, and comprehensive user dashboards.
Cross-Chain NFT Bridge
Backend infrastructure for cross-chain NFT transfers between Ethereum and Polygon with bridge contracts and coordination logic.
Decentralized Voting DApp
Full-stack voting platform with React frontend, Node.js backend, and Solidity smart contracts ensuring transparency and immutability.
Martial Arts Competition Management
Enterprise software for tournament management, scoring, scheduling, and participant tracking with C# backend and real-time updates.
RAG-Powered Document Assistant
AI-driven conversational assistant using Retrieval-Augmented Generation for querying PDFs, extracting information, and generating summaries.
Qualifications
Certifications & Credentials
Using Databases with Python
University of Michigan
Issued: May 2023
ID: CA9UHDQCR5JL
Capstone: Retrieving, Processing, and Visualizing Data with Python
University of Michigan
Issued: May 2023
ID: A6CUKTLRRNSZ
Software Engineering Specialization
Hong Kong University of Science & Technology
Issued: May 2023
ID: V3YKRKXBGMRW
Recognition
Awards & Competitions
1st Place
Courier Hacks
Championship award for innovative coding solution
2023
2nd Place
Circuit Jam 24
Recognition for exceptional hardware-software integration
2024
2nd Place
ENOV Competition
Achievement in innovation and entrepreneurship
2021
3rd Place
Moroccan Robotics Competition (MRC)
Excellence in robotics design and implementation
2024
3rd Place
SumoBot Challenge
Technical achievement in autonomous robotics
2019
Get In Touch
Let's Connect
Open to opportunities, collaborations, and interesting conversations about Web3, Cybersecurity, and Innovation.
© 2025 Oussama Hammach. All rights reserved.