About Hassen
Full-Stack & Frontend Engineer (React, Node.js)
I help companies build fast, scalable, production-ready web applications—from SaaS platforms and dashboards to high-performance websites.
With 3+ years of experience, I specialize in React, TypeScript, Node.js, and modern DevOps, delivering clean architecture, strong performance, and measurable business impact. I’ve improved uptime to 99%, reduced infrastructure costs, and increased engagement through SEO, UX, and performance optimization.
Typical projects include SaaS apps, dashboards, APIs, and deployments using Docker, AWS, and Nginx. I work independently or with teams to turn business needs into reliable, maintainable solutions.
Arabic
Native or bilingual
English
Fluent
French
Basic
Remote only
Primarily works remotely
Experience
- Trinibuy LTDFull-Stack Software EngineerDIGITAL AND ITDecember 2023 - Today (2 years and 6 months)London, United Kingdom• ● Built and maintained full-stack SaaS applications using React, Node.js, MongoDB, and Prisma, supporting 500+ daily active users• ● Developed data-driven dashboards and optimized frontend rendering for large datasets, improving decision-making speed for internal teams• ● Implemented secure authentication and role-based access control, strengthening application security and user isolation• ● Designed and optimized REST APIs, reducing response times and improving long-term maintainability• ● Delivered AI-assisted features (automated logging and data analysis), reducing manual user input and support overhead• ● Improved mobile responsiveness and frontend performance, increasing mobile engagement by 40%• ● Containerized applications with Docker and deployed on AWS, cutting manual deployment effort by 30%• ● Maintained Linux servers, CI/CD pipelines, and monitoring systems• ● Implemented self-hosted iRedMail infrastructure, saving €180+ per user annually• ● Secured 10+ client portals using Nginx + Certbot, achieving 100% SSL compliance
- InritsFull-Stack DeveloperDIGITAL AND ITJanuary 2023 - May 2024 (1 year and 4 months)Masakin, Tunisia• ● Led development of the Global Police Indicators (GPI) platform, showcased at the Dubai World Police Summit• ● Built and maintained scalable backend services, supporting analytics dashboards and data-intensive public-sector applications• ● Built analytics dashboards visualizing large-scale public-sector datasets, enabling non-technical stakeholders to extract insights• ● Optimized frontend performance and responsiveness, improving usability for decision-makers• ● Automated deployments using Docker and AWS, reducing deployment effort by 30%+• ● Refactored database schemas and queries, improving response times and system maintainability
- SafariWeb DeveloperDIGITAL AND ITOctober 2022 - January 2023 (3 months)Masakin, Tunisia• ● Delivered responsive React interfaces, improving user flow across key pages• ● Integrated Google Maps APIs for location-based services• ● Reconfigured hosting and DNS infrastructure, achieving 99% uptime• ● Improved SEO performance and user trust through SSL and infrastructure upgrades
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Education
- The Complete Full-Stack Web Development BootcampUdemyThe Complete Full-Stack Web Development Bootcamp