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Wassim H.WH

Wassim H.

Tech Lead & Full-Stack Architect

€750/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Wassim

Tech Lead & Full-Stack Architect — Symfony / React / Next.js

Tech Lead with over 7 years of experience, I design and manage modern web architectures, from the scoping phase to production. My role: make the right technical choices, structure the project for long-term sustainability, and guide teams to deliver quickly and effectively.
Specifically, I work on:

Architecture: Hexagonal, Microservices, DDD, Clean Code, REST API
Back-end: Symfony, Node.js / Nest.js
Front-end: React.js, Next.js (full-stack)
Cloud & DevOps: AWS, Docker, Kubernetes, CI/CD, monitoring

What I've recently led: the complete overhaul of a performance-oriented and automated IS (Avis Formation), CTO leadership of all systems and teams at Cash Converters (marketplace, certified banking POS, cloud migration), and the creation of Callaps, an AI voice agent SaaS that I developed from scratch in Next.js.
I act as a Tech Lead or architect on your projects: technical scoping, architecture redesign, implementation of best practices (testing, CI/CD), or support on critical topics. I remain very hands-on — I enjoy staying in the code while maintaining the big picture.
  • French

    Native or bilingual

  • English

    Fluent

  • Arabic

    Conversational

Can work on-site
Paris (up to 50km), Lyon (up to 50km), Nice (up to 50km), Lille (up to 20km), Toulouse (up to 50km)

Experience

  • AVLIS FORMATION
    Technical Product Manager | Product Overhaul, AI & Re-architecture
    EDUCATION AND E-LEARNING
    July 2025 - February 2026 (7 months)
    Paris, France
    🎯 Mission: Complete overhaul of internal tools, product structuring, and development contribution.

    Leading the front-office and back-office redesign.

    Functional and technical re-architecture of the platform.

    Stabilization and optimization of existing tools.

    Automation of business tasks through the integration of AI solutions.

    Structuring of development processes (roadmap, backlog, prioritization, agile rituals).

    Coordination of business & tech teams.

    Direct contribution to development (front & back).

    Continuous improvement of architecture and reduction of technical debt.

    🚀 Impact:

    More reliable and scalable tools.

    Reduction of manual tasks.

    Improved team velocity.

    Alignment of product / business / tech
    ERP System Customization Agile Project Management Project Management React.js
  • Cash Converters Europe
    Chief Information Officer / Tech Lead
    January 2021 - September 2025 (4 years and 8 months)
    Paris, France

    🧠 My Key Expertise


    Technical Direction & Global IT Management
    IT Governance, digital strategy, project scoping, budget management, team leadership (developers, DevOps, architects).

    Strategic Project Management
    Business software, certified POS systems, e-commerce marketplace, ERP, CRM.

    Cloud & Move to Cloud
    Infrastructure migration, cloud architecture, containerization, Kubernetes orchestration, Helm, CI/CD pipelines, DevOps automation.

    Software Development & Architecture
    Full-Stack: Symfony, React.js, Java, PHP, C++.
    API design, performance optimization, complex integrations.

    Security & Compliance
    Compliance with Finance Law (POS systems), GDPR, cloud & DevSecOps best practices.

    Product Management
    Roadmap definition, prioritization, user stories, KPIs, product lifecycle management.

    Operations & Availability
    Monitoring, service continuity across +100 points of sale, incident management, Disaster Recovery/Business Continuity Plans.

    🏆 Key Achievements


    - Complete compliance of a POS software with LNE / Finance Law standards.

    - Design and launch of a national integrated marketplace (products, logistics, secure payment).

    - IT Department Transformation: DevOps automation, architecture redesign, cloud migration.

    - Implementation of a complete CI/CD, Docker, Kubernetes structure to industrialize deployments.

    - Leadership of multi-team projects (dev, infra, IT, external partners).
    Agile Methodology Project Management Digital Transformation Artificial Intelligence Cloud Architect
  • Cash Converters Europe
    Software Systems Developer
    December 2018 - December 2021 (3 years)
    Paris, France
    Development and maintenance of internal and external software. Programming in PHP, C++, Symfony, Java, PostgreSQL on Linux environments. Creation of automation scripts to optimize business processes. Design and structuring of databases to ensure application scalability.

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Education

  • Master 2 Software Architect Application Developer
    ETNA Paris
    2018
    Master 2 Architect logiciel développeur d'application
  • Higher National Diploma (BTS) Industrial Computer Science and Networks
    Lycée de la Tourelle Paris
    2015
    Brevet de technicien supérieur (BTS) Informatique et réseaux industriel

Skill set

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