About Rayen
Data Engineer & Cloud DevOps specialized in Google Cloud Platform (GCP) and Terraform Associate certified.
I help companies build scalable, production-ready data pipelines and automate their cloud environments using GCP, Docker, Cloud Build, and CI/CD best practices.
Certified Terraform Associate, with hands-on experience at L’Oréal Global Beauty Tech and as Tech Lead at Parcoursur, I bring both enterprise-grade reliability and startup-level agility.
I design, deploy, and monitor end-to-end cloud architectures — from infrastructure automation to monitoring and cost optimization — ensuring fast, secure, and maintainable solutions.
Looking for freelance missions in Data Engineering, DevOps, or Cloud architecture? Let’s build something scalable together.
French
Native or bilingual
English
Fluent
Arabic
Native or bilingual
Can work on-site
Paris (up to 50km), Reims (up to 50km)
Experience
- L’OréalData Engineer & Cloud DevOpsLUXURY GOODSSeptember 2023 - September 2025 (1 year and 11 months)Paris, FranceData Engineer & Cloud DevOps – L’Oréal (Global Beauty Tech Data)Built and automated cloud infrastructure on Google Cloud Platform (GCP) using Infrastructure as Code (IaC) with Terraform, Docker, and Cloud Build, enabling consistent and scalable deployments across multiple environments.Optimized and orchestrated ELT pipelines with Python DAGs, Workflows, Pub/Sub, EventArc, and Cloud Scheduler, improving performance and significantly reducing execution costs.Implemented monitoring and alerting policies on Google Cloud Monitoring to enhance visibility, reliability, and proactive incident response.Enhanced and maintained the CI/CD framework, streamlining development workflows and ensuring faster, more reliable releases for engineering teams.Developed and deployed internal APIs (new endpoints, Apigee Deployer integrations), increasing scalability, modularity, and adaptability to evolving business needs.Tech stack:GCP (BigQuery, Workflows, Cloud Run, Cloud Build, Storage, Scheduler, Pub/Sub, EventArc, Monitoring, IAM, Apigee), Terraform, Docker, Python, FastAPI, CI/CD, Apigee, Dataform, SQL.
- ParcoursurCo-Founder & Technical LeadEDUCATION AND E-LEARNINGFebruary 2025 - Today (1 year and 4 months)Paris, FranceCo-founder & Tech Lead – ParcoursurAI-powered academic guidance platform for studentsAs Tech Lead and main architect, I designed, deployed, and scaled a fully cloud-native platform on Google Cloud Platform (GCP) — Parcoursur, an AI solution helping students explore and choose their academic paths through intelligent recommendations.I led a team of 2 developers, overseeing the entire DevOps pipeline, backend services, and cloud infrastructure, ensuring reliability, scalability, and cost efficiency across the stack.Key achievements & responsibilities:Architected and deployed a Retrieval-Augmented Generation (RAG) system using Vertex AI and Firestore for vectorized document storage and retrievalDeveloped a FastAPI backend, containerized with Docker, automated through Google Cloud Build pipelines (CI/CD) and deployed using Google Cloud RunManaged data storage, hosting, and user authentication through Firebase (Firestore, Auth, Hosting)Automated workflows using Cloud Workflows, Cloud Scheduler, and Pub/Sub for async and event-driven processingOversaw the frontend integration with React, deployed seamlessly via Firebase HostingTech stack:Google Cloud Platform (Cloud Run, Build, Workflows, Pub/Sub, Firestore, Firebase Hosting, IAM), FastAPI, React, Docker, Vertex AI, Python, CI/CD.
- Aka-mahjongFull-stack DeveloperENTERTAINMENT AND LEISURESeptember 2025 - October 2025 (1 month)Paris, FranceAka-Mahjong – Full-Stack DeveloperOnline Japanese Mahjong web app with real-time gameplay and tournament trackingAs a full-stack Developer, I designed and deployed Aka-Mahjong, a web-based Japanese Mahjong game that lets users play online, track scores, and organize tournaments in real time.I developed the entire backend and cloud architecture, focusing on scalability, reliability, and smooth user experience.Key achievements & responsibilities:Designed the REST API using FastAPI with full CRUD logic for players, games, and tournament dataBuilt a responsive frontend interface with React, integrated with the backend via REST endpointsImplemented a real-time scoring and round-tracking system, including Riichi logic and score updates per turnManaged player authentication and secure data storage using Firebase Auth and FirestoreIntegrated Cloud Storage for storing JSON and media assets (avatars, match data)Tech stack:FastAPI, React, Firestore, Firebase Auth, Python, CI/CD, REST API, JavaScript
Recommendations
Be the first to recommend Rayen
Help this freelancer shine by sharing your experience working together.
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- Engineer's degreeEFREI2025Engineer’s Degree in Digital Engineering – Big Data specialization Focused on data engineering and distributed systems, with strong expertise in large-scale data processing, cloud computing, and artificial intelligence. Key skills: designing and optimizing data pipelines, deploying scalable infrastructures, proficiency in Python, SQL, Spark, Hadoop, and Google Cloud Platform.
Certifications
- HashiCorp Certified: Terraform Associate (003)HashiCorp2025