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Mikaël WawrzicznyMW

Mikaël Wawrziczny

Senior Fullstack Engineer | Vue/React/Node | AI

€600/day
4 projects
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Mikaël

Hello 👋

Senior Fullstack Engineer | Vue/React/Node | AI · 8 years of experience

I design and evolve complex SaaS applications, and I integrate AI features (OpenAI assistants, model orchestration, LLM automations) into existing products.

→ 30 months at Accor (Convert team, 17 languages/countries) on the booking funnel redesign: Vue 2 → Vue 3 / Nuxt 3, contributory design system, GraphQL, hybrid SSR/CSR, Node BFF, Vitest + Playwright testing strategy in CI.

→ Several SaaS developed independently since 2024:
- mikaelw.com — Nuxt 3 portfolio + conversational assistant (OpenAI API)
- forenlyst.com — deepfake detection orchestration platform (Next.js + Python micro-service)
- oss-nation.com — international BJJ platform with geolocation
- joys-agency.com — local website generator for artisans

What I secure on a mission:
- Vue 2 → Vue 3 / Nuxt 3 migration without breaking production
- Front + BFF + GraphQL architecture
- Automated testing (Vitest, Playwright, TDD)
- Design system, performance, SSR/CSR, SEO, a11y, i18n
- AI integration: OpenAI assistants, third-party model orchestration

Stack: Vue 3 / Nuxt 3, TypeScript, Node.js (Express, Fastify), GraphQL / Apollo, MongoDB, Firebase, OpenAI API, prompt engineering, Python micro-services, Vitest, Playwright, Tailwind.

The extra edge: before development, 15 years in field sales (Century 21, I@D sales rep, Leboncoin for Agriaffaires & MachineryZone). I speak to product, business, and stakeholders without a translator, and I manage a schedule against client deadlines. A rarity in tech.

📍 Paris + full remote France · Available immediately
  • English

    Fluent

  • French

    Native or bilingual

Can work on-site
Paris (up to 50km), Lyon (up to 50km), Lille (up to 50km), Rouen (up to 50km), Bordeaux (up to 50km)

Experience

  • Accor
    Senior Front-end Engineer
    September 2023 - January 2026 (2 years and 4 months)
    Issy-les-Moulineaux, France
    Tech: Vue 3, Nuxt 3, TypeScript, GraphQL, Playwright, Vitest
    - Refactoring Vue 2 to Vue 3 / Nuxt 3 for the booking funnel
    - Integration and contribution to the design system
    - Implementation of a testing strategy (Vitest, Playwright) and CI automation.
    - Direct collaboration with product and QA teams in an international environment.
    - Development of a Node.js BFF (Backend For Frontend)
    - Advanced GraphQL integration
    Nuxt.js Vue.js Node.js TypeScript GraphQL
  • Mon Commerce Interactif (MCI)
    Full-stack Engineer
    April 2023 - December 2023 (8 months)
    Tech: Nuxt 3, Vue 3, Flutter, Firebase Auth & Firestore, Cloud Storage
    - Development of a Flutter mobile application for merchants and customers, with QR code onboarding and multi-profile management.
    - Development of the Nuxt 3 website and admin dashboard: managing menus, wines, clients, uploads, agents.
    - Front/back architecture, query optimization, data organization, refactoring, and CI.
    - Version management, beta testing, and user feedback.
  • Gritchen
    Front-end Engineer
    January 2023 - June 2023 (5 months)
    Tech: Vue 3, Pinia, TypeScript, Laravel, REST API
    • Development of Vue 3 interfaces for an insurance platform (dashboards, complex forms, client area).
    • Front-end integration with a Laravel API (authentication, contract management, claims, etc.).
    ◦ Collaboration with the product team to evolve business features.

Reviews

4.5

Out of 2 ratings

C

Christophe

PracticIO

Reviewed on 11/12/2021

Mikaël truly cares about satisfying his client. Flexible and proactive, Mikaël guided us towards better technological choices and stepped out of his comfort zone to deliver a more complete and secure Laravel backend.
R

Rudy

WEBGROUP

Reviewed on 8/30/2021

Mikael was available from start to finish! Very professional, thank you for your support. Looking forward to collaborating again.

Recommendations

FU
FU
Wassim SamadWS
+1
Former user and 3 other people have recommended Mikaël

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