Yazid Sefsaf

Following 6 months of freelance collaboration, I was hired on a permanent contract as a full-stack developer within the agency. I was responsible for end-to-end client projects, developing skills in more modern stacks (Next.js, Payload CMS) alongside the agency's historical projects.

Main responsibilities:

- Design and complete development of websites and applications for various clients (SMEs, brands, startups)

- Progressive migration of projects to modern stacks (Next.js, React, TypeScript)

- Development of custom ERP and back-offices

- Implementation of self-hosted infrastructures (Coolify, OVH)

- Maintenance, evolution, and technical support for delivered applications

- Close collaboration with project managers and clients

Notable achievements:

- Vainkeurz — Full-stack development within the team

- Les Flammes — Full-stack development within the team

- [Other agency projects you remember]

Stack: Next.js, React, TypeScript, PHP, Symfony, JavaScript, Node.js, MySQL, PostgreSQL, Tailwind CSS, Bootstrap

Freelance collaboration with a French agency specializing in web development and digital solutions. Integrated into the team on several client projects concurrently, with complete autonomy on the assigned developments.

Main responsibilities:

- Front-end and back-end development of client websites

- Integration of mockups into reusable components

- Setup and customization of administration back-offices

- Optimization of performance and user experience

- Team collaboration via Git, agile methodology

Stack: PHP, SlimPHP, Symfony, JavaScript, HTML, CSS, Twig, Bootstrap, MySQL

In parallel with my salaried work, I develop custom websites and business applications as a freelancer for clients in France and Algeria. Specializing in Next.js, Payload CMS, and sovereign hosting (Coolify/OVH).

Main responsibilities:

- Design and development of high-performance websites (Next.js, TypeScript, Tailwind CSS)

- Creation of custom ERP and back-offices to automate business processes

- Setup of self-hosted infrastructures (Coolify, OVH, PostgreSQL)

- Continuous maintenance and evolution of delivered applications

- Consulting on technical architecture and stack choices

Notable achievements:

- Kndeco e-commerce platform (interior design) — Complete design and development

- Tapis El Rayes e-commerce site — Catalog and product management

- Mizaniya personal application — Multi-income financial management (Next.js + Supabase)

Stack: Next.js 15, React 19, TypeScript, Payload CMS, PostgreSQL, Supabase, Tailwind CSS, Node.js, Docker, Coolify