Freelancer profile translated to English.
Back to original languageAbout Rayan
🚀 Full-Stack Developer with a DevOps approach and security awareness
👨‍💻• 4 years of experience (+ full product lifecycle vision)
• Backend development PHP/Symfony
• Implementation of secure CI/CD (GitHub Actions, automated tests, deployment)
• Proven application scaling: 0 → 60k users/week
• Continuous migration without service interruption
🔧 MY TECHNICAL ASSETS
• Backend: PHP, Symfony 7, REST API, database optimization
• Frontend: React, nextJs, ViteJs
• DevOps: Docker, CI/CD, automation, secrets management
• Versatility: Capable of training teams, documenting, industrializing
• Business vision: experience in finance/accounting, understanding of constraints.
• Technical governance: definition of code policies, performance benchmark execution, architectural decision piloting (ADR) and data-driven development approach.
English
Basic
French
Native or bilingual
Can work on-site
Paris 17e Arrondissement (up to 50km)
Experience
- WebtoonFull Development (backend, frontend, infra)ENTERTAINMENT AND LEISUREJanuary 2021 - January 2025 (4 years)Paris, FranceWebtoon Platform as a Freelancer.Development: **Backend**, **Frontend**, and **Infra**.Optimization:Cachingand **CDN**.Growth: 0 →60,000 users/week (Google Analytics)Migration and Evolutions: **Service interruption-free migration**.Ad Optimization:+x10 on AdSense revenueafter UX redesign, new placement, and better behavioral analysis.
- Finance conceptionFull Stack Developer - Financial & Accounting ToolsBANKING AND INSURANCENovember 2020 - December 2024 (4 years and 2 months)Paris, France🔹 Architecture and Databases: Design and optimization of databases (MySQL) to ensure scalability and data security.Implementation of cache management (Redis) to improve application performance.🔹 Frontend Development and UX: Creation of intuitive user interfaces with React.js and JavaScript, ensuring a fluid and ergonomic experience.Work on interactive dashboards allowing clear visualization of accounting and financial data.🔹 Automation and Testing: Writing unit and end-to-end tests to ensure code robustness. Implementation of CI/CD pipelines for secure and efficient deployment.🔹 Documentation and Collaboration: Writing detailed technical documentation to ensure maintainability and facilitate the integration of new features. Collaboration with business teams to align functional and technical needs.
- FreelanceFreelance – Consultant & Full Stack DeveloperDIGITAL AND ITOctober 2021 - Today (4 years and 8 months)Paris, FranceAs a freelancer, I assist companies in the design, optimization, and development of custom solutions, combining technical expertise with strategic consulting.🔹 Consulting & Support: Analysis of business needs, implementation of optimized procedures, and strategic recommendations to improve internal processes.🔹 Risk and Cost Studies:Writing risk and cost analysis documents to aid decision-making.Evaluation of the financial and technical impacts of technological choices.🔹 Development of Custom Solutions:
- Creation and customization of proprietary CMS for content management and task automation.
- Development of specific business tools adapted to company needs (financial management, project tracking, reporting, etc.).
- Database optimization to improve performance and reduce response times.
🔹 Maintenance & Production Support:- Detection and correction of bugs in production with a methodical root cause analysis approach.
- Strengthening application security and reliability through technical audits.
🔹 System Migration & Administration- Migration of services (servers, databases, applications)
- Hosting management and optimization
- DNS configuration and management to ensure a smooth and secure transition.
I help companies gain efficiency, performance, and security while ensuring rigorous technical follow-up.
Reviews
G
Ghita
Faktus
Reviewed on 10/10/2023
Great mission with Rayan. Rayan delivered a quality simulator, based on multiple Excel calculations that he translated into "rules" clearly and fairly.
Throughout the mission, he showed creativity in proposing effective solutions and designs.
We would not hesitate to work with Rayan again!
Yasmine
YAZZIE
Reviewed on 12/12/2022
Rayan was very responsive and professional. Listened to the needs, his work was done with meticulousness and rigor. I highly recommend his profile.
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Education
- MASTER - SOFTWARE ARCHITECT, APPLICATION DEVELOPERETNA2020