Freelancer profile translated to English.

Description

Senior Fullstack Engineer | Big Data • AI • LLMs • Scalable Architectures

I design production-ready applications where Big Data meets AI (LLMs, RAG). My goal is to transform complex problems into reliable, scalable, and high-impact systems. I work end-to-end: architecture, development, AI integration, and production deployment.

🚀Achievements

L'ORÉAL:Product recommendation AI platform → +120k MAU, +18% conversion, <100ms latency, 2k req/s

isMalicious:Threat intelligence API → 200k req/day, <50ms response.

🎯What I bring

→ Robust and scalable architectures

→ High-performance business-oriented SaaS

→ AI integration to automate and differentiate

→ Data & real-time optimization

→ Pragmatic approach: scalability, costs, maintainability from day 1.

+15 years of experience,strong product and impact culture.

I will guide you fromideato **production**: technical architecture design, frontend & backend development, AI solutions integration, and AWS deployment.

👨‍💻My expertise:

Frontend:React.js, Next.js, TypeScript, TailwindCSS, MaterialUI, ThreeJS.

Backend:Node.js (NestJS, Fastify, Express), Python (Django, FastAPI), Rust/C++.

Data:PostgreSQL, MongoDB, ElasticSearch, Algolia, BigQuery, Redis.

AI & Machine Learning:LLMs, AI Generation, Computer Vision, intelligent and automated integration.

Architecture & Cloud:AWS, GCP, scalable Cloud architectures, CI/CD, microservices, Docker, Kubernetes.

🌟Why me?

→ I have over 15 years of experience in software development, technical architecture, and agile team leadership.

→ I master AI prompting to make your products unique and robust.

→ I deliver stable and scalable code with a strong focus on best practices (DDD, SOLID, CQRS).

Contact me, I will respond within the hour to discuss your needs.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Paris (up to 50km), Marseille (up to 50km), Lyon (up to 50km), Nice (up to 50km), Montpellier (up to 50km)

L'Oréal
Senior Fullstack Developer
LUXURY GOODS
December 2023 - December 2024 (1 year)
Paris, France
✨ Consumer Loop Product (Data, KPIs & metrics) — Design of a complete analytical module: tracking event definition, KPI framing, dynamic dashboards, advanced filters, segmentation, CSV/Parquet export, threshold alerting, data governance (GDPR, quality, lineage).

✅ React.js + Next.js — SSR/ISR App with TypeScript, modern routing, lightweight state management, robust forms, accessibility (WCAG), unit & e2e tests, CI/CD (Vercel/GitHub Actions), bundle splitting, optimized images, and intelligent prefetching.

🧩 Google Cloud Platform (BigQuery, Firestore, Container Registry, Cloud logging, App Engine)

☘️ Express API — Refactor & optimization: clear REST endpoints, validation (Zod/Joi), pagination/sorting, rate limiting, compression, ETag, Redis cache, idempotence, structured logs, OpenTelemetry instrumentation, end-to-end metrics, and tracing.

📋 PostgreSQL + MongoDB — Modeling & performance: clean schemas, composite/partial indexes, migrations, materialized views, time partitioning, TTL collections, execution plan analysis, backups, replication, and tested restoration.

🔎 Elasticsearch — Mappings & queries: French analyzers, aggregations, auto-suggest/typo-tolerance, search_after pagination, relevance tuning (BM25), snapshots & lifecycle management.

🎨 Figma — Faithful integration: design tokens, light/dark theming, reusable components, responsive grid, micro-interactions, clean handoff to dev.

→ Focus: performance, security, observability, and scalability, with a fluid DX.
Node.js React.js Typescript JavaScript PostgreSQL
Perroquet
On Malt
Senior Fullstack Developer
REAL ESTATE
May 2024 - May 2024
Paris, France
🏡 Real Estate — Listing and management platform: enriched property details (HD media, floor plans, energy performance certificates), price/sqm estimation, buyer-seller matching, lead CRM, multi-posting to portals, local SEO (Schema.org/RealEstateAgent), analytics, GDPR compliance (consent, deletion), sitemaps & fast indexing.

🗺️ Mapbox — Navigation experience: marker clustering, vector tiles with lazy-loading, geocoding/routes/isochrones, travel time search, “draw your area”, heatmaps, 3D buildings, indoor/outdoor, keyboard accessibility, map state in URL, A/B performance testing, caching, and offline fallback.

✨ Listings — Ingestion & normalization (OpenImmo/RESO), deduplication, multi-criteria facets & sorting, saved searches, email/push alerts, SSR/ISR for SEO, structured data (RealEstateListing), optimized images (WebP/CDN), real-time availability, moderation, and quality scoring.
JavaScript Next.js React.js Tailwind CSS REST API
Bene Bono
Senior Fullstack Developer
AGRICULTURE
July 2023 - August 2023 (2 months)
Paris, France
🌮 Purchase Funnel — Conversion-oriented web application covering the entire A→Z journey: configurable steps (awareness → consideration → checkout), event tracking (view/click/add_to_cart/payment), multi-touch attribution, A/B testing, cohorts, drop-off heatmaps, recommendations, email/push reminders, cart saving, multi-country/currency, GDPR compliance.

✅ React.js + Next.js (+SSR) — TypeScript, App Router + RSC, SSR/ISR for SEO & speed, lightweight state management, robust forms, lazy-loading, code splitting, optimized images, intelligent prefetching, Edge runtime, WCAG accessibility, unit/e2e tests, CI/CD (lint, build, preview), observability (logs, metrics, traces).

✨ Strapi CMS API — Content modeling (pages, offers, UGC, FAQs, banners), roles & permissions, i18n & draft preview, ingestion webhooks, validations, rate limiting, Redis cache, S3/Cloud upload, audit middleware, approval workflows, OpenAPI documentation, security (CORS/CSRF).

🎨 Figma — Pixel-perfect integration: design tokens & variables, Auto-layout components, light/dark themes, responsive grids, micro-interactions, clean handoff to Storybook, accessibility specs, shared libraries.

→ Focus: performance (Core Web Vitals), security, observability, and scalability, with a fluid DX.
React.js TailwindCSS REST API Typescript TypeScript Development