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Frontend-focused full-stack engineer with 1 year of professional experience building and improving React and Next.js applications connected to REST APIs, databases, distributed ledgers, and off-chain storage. Comfortable debugging, refactoring components, tracing integration issues, and delivering responsive, user-focused interfaces. Hands-on Web3 experience with Solidity, Web3.js, EVM smart contracts, and Hyperledger Fabric—supporting product features that span frontend enhancements and blockchain integration, with a strong focus on modularity, security, and maintainable flows. My portfolio: _Website not available. Sign in: https://www.twine.net/signup_…Frontend-focused full-stack engineer with 1 year of professional experience building and improving React and Next.js applications connected to REST APIs, databases, distributed ledgers, and off-chain storage. Comfortable debugging, refactoring components, tracing integration issues, and delivering responsive, user-focused interfaces. Hands-on Web3 experience with Solidity, Web3.js, EVM smart contracts, and Hyperledger Fabric—supporting product features that span frontend enhancements and blockchain integration, with a strong focus on modularity, security, and maintainable flows. My portfolio: _Website not available. Sign in: https://www.twine.net/signup_

Souhail EL MAHDANI

Full Stack Developer, Web Developer, Blockchain Developer, +3

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Frontend-focused full-stack engineer with 1 year of professional experience building and improving React and Next.js applications connected to REST APIs, databases, distributed ledgers, and off-chain storage. Comfortable debugging, refactoring components, tracing integration issues, and delivering responsive, user-focused interfaces. Hands-on Web3 experience with Solidity, Web3.js, EVM smart contracts, and Hyperledger Fabric—supporting product features that span frontend enhancements and blockchain integration, with a strong focus on modularity, security, and maintainable flows. My portfolio: _Website not available. Sign in: https://www.twine.net/signup_…Frontend-focused full-stack engineer with 1 year of professional experience building and improving React and Next.js applications connected to REST APIs, databases, distributed ledgers, and off-chain storage. Comfortable debugging, refactoring components, tracing integration issues, and delivering responsive, user-focused interfaces. Hands-on Web3 experience with Solidity, Web3.js, EVM smart contracts, and Hyperledger Fabric—supporting product features that span frontend enhancements and blockchain integration, with a strong focus on modularity, security, and maintainable flows. My portfolio: _Website not available. Sign in: https://www.twine.net/signup_

Available to hire

Frontend-focused full-stack engineer with 1 year of professional experience building and improving React and Next.js applications connected to REST APIs, databases, distributed ledgers, and off-chain storage. Comfortable debugging, refactoring components, tracing integration issues, and delivering responsive, user-focused interfaces.

Hands-on Web3 experience with Solidity, Web3.js, EVM smart contracts, and Hyperledger Fabric—supporting product features that span frontend enhancements and blockchain integration, with a strong focus on modularity, security, and maintainable flows.

My portfolio: Website not available. Sign in: https://www.twine.net/signup

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

French

Advanced

English

Fluent

Arabic

Fluent

Spanish; Castilian

Beginner

Work Experience

Blockchain & Full-Stack Engineer at Mohammed VI Polytechnic University

September 1, 2025 - Present

Developed and maintained application flows between a Next.js/React frontend, Node.js API, Fabric Gateway, and MinIO, linking user workflows with on-chain and off-chain data. Translated complex carbon-calculation, validation, aggregation, and multi-step approval requirements into maintainable product features across participating organizations. Contributed to frontend and system architecture, cross-component integration, troubleshooting, defect resolution, and documentation. Implemented secure business rules using modular Go chaincode, role-based access control, input validation, and controlled ledger-state transitions.

Full-Stack & Security Engineer Intern at Mohammed VI Polytechnic University

February 1, 2025 - August 31, 2025

Analyzed web applications with OWASP ZAP, Nessus, and Burp Suite and documented defects, inconsistencies, security findings, and remediation priorities. Deployed Elastic Stack monitoring and automated repeatable infrastructure tasks using Ansible.

Full-Stack Developer & DevOps Freelancer at NextAvia

January 1, 2025 - March 31, 2025

Delivered an aviation-services platform using React, Django REST APIs, and PostgreSQL, integrating UI with relational data and backend services. Containerized and deployed the application to a VPS using Docker and GitLab CI/CD.

Web3 Developer Intern at Marketing Confort

June 1, 2024 - August 31, 2024

Developed ERC-20 and ERC-721 smart-contract functionality and integrated it into user-facing Next.js applications using Web3.js. Used Hardhat and Foundry for smart contract development and automated DApp delivery through GitLab CI/CD.

Full-Stack Web Developer Intern at ENSA Berrechid

July 1, 2023 - August 31, 2023

Built an internship-management platform with React, Node.js/Express, and MongoDB.