Freelancer profile translated to English.
Back to original languageAbout Mohamed
Senior Data & AI Architect | Snowflake • DBT • Airflow • AWS • GCP
15+ years of experience in large-scale data engineering and architecture.
Specialist in batch & streaming pipeline design, medallion Lakehouse architectures, data mesh, and GenAI solutions (RAG, embeddings, LLMs).
Snowflake Expert (advanced modeling, FinOps optimization, clustering, time-travel), DBT Cloud (incremental models, testing, medallion), and Airflow/MWAA.
Recent achievements: legacy migration → Snowflake at Leasecom (-35% costs, +50% speed), real-time platform FT (+30% engagement), sovereign AI BPI France (-28% errors).
Immediately available – Remote or hybrid.
French
Native or bilingual
English
Native or bilingual
Arabic
Native or bilingual
Can work on-site
Paris (up to 50km), Nantes (up to 30km)
Experience
- LeasecomTech Lead Data Engineer & Legacy Migration → CloudPRIVATE EQUITYMarch 2025 - April 2026 (1 year and 1 month)Paris, FranceI led the end-to-end migration of legacy systems (Cassiopae ERP, Vigie, MySQL, MariaDB, SQL Server, Talend) to a modern platformAWS+ **Snowflake**, aligned with the circular economy and green financing.**Key achievements**:
- Design and deployment of ~100Fivetranpipelines with CDC for continuous synchronization of contracts, transactions, and active data toS3 Iceberg+Glue Catalog(99.9% accuracy)
- Implementation of a complete medallion architecture inSnowflakewith 500+DBT Cloudmodels (bronze/silver/gold, macros, automated tests, incremental builds)
- AdvancedSnowflakeoptimization: segregated virtual warehouses, clustering keys, materialized views, time-travel, and resource monitors → -35% storage costs
- Workflow orchestration withAWS MWAA(**Airflow**), real-time synchronizationMSF (Flink)+MSK (Kafka)between **Snowflake**, **S3 Iceberg**, Salesforce, and Odoo ERP
- Infrastructure as Code (Terraform) + GitLab CI/CD for reproducible deployments and governance
**Business results**: +50% approval speed for leases, near real-time visibility on risks and portfolio, full GDPR & EU Green Deal compliance. - AWS Professional Services (Financial Times)Lead Data Streaming EngineerPRESS AND MEDIAMarch 2024 - February 2025 (11 months)Londres, United KingdomEngaged by **AWS ProServe**, I led the end-to-end architecture and engineering of a scalable real-time data platform for the Financial Times.I designed a high-performance solution integrating batch and streaming to process 30,000+ events/second (web, mobile, and third-party sources).Stack implemented:Ingestion:AWS MSK (Kafka)
- Real-time enrichment:Apache Flink (MSF)with 30+ APIs (geolocation, device fingerprinting, session intelligence)
- Unified storage:Medallion LakehouseonS3 Iceberg+Glue Catalog
- Batch & reprocessing:AWS Glue PySpark
**Results**: sub-second latency, +30% user engagement, and securing a major investment for growth in premium subscriptions. - AWS ProServe (BPI France)Data Solutions ArchitectBANKING AND INSURANCEJanuary 2022 - February 2024 (2 years and 1 month)Paris, FranceI designed and delivered the first sovereign AI investment intelligence platform for Bpifrance (France 2030, >€10 billion in commitments).**Key technical achievements**:
- Setup of a sovereign data mesh with centralized governance → reduction of decision cycles from 3 weeks to 4 hours
- Massive ingestion:Fivetran+AWS Glue PySpark(1,000+ heterogeneous sources, 15 TB/day, 99.95% reliability) + sub-5 min CDC viaAWS DMS
- Medallion Lakehouse onS3 Iceberg+Glue Catalogwith dual-warehouse strategy (**Athena** for ad-hoc exploration of 10 PB+ +Snowflakefor high-performance modeling/reporting)
- Advanced governance:Lake Formation+Collibra(fine-grained traceability, automated quality, 200+ certified data products)
- Advanced AI: self-hostedLLMs(**Llama 2**,Mistral**) on **EKSwith GPU inference, RAG architecture (OpenSearch embeddings), andSageMakermodels for risk scoring on 500+ factors → -28% investment errors
**Result**: 300% demonstrated ROI and first sovereign AI infrastructure for a French public financial institution.
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Education
- Master of Science - MSEcole des Mines de Paris2009Software Engineering
- Master of Business Administration - MBAParis School of Business2012Master of Business Administration - Marketing Major
Certifications
- SnowPro Advanced Architect CertificationSnowflake2025
- SnowPro Core CertificationSnowflake2024