Freelancer profile translated to English.
Back to original languageAbout Hamza
Technical expert and Big Data architect with over 10 years of experience in development and architecture in general. I have worked on various types of technically demanding projects requiring expertise. In this context, I have faced various challenges related to high traffic: scalability, concurrency, etc., with a rich panel of technologies, particularly in the BigData domain.
Working with a team on Big Data challenges where I will bring my dynamism, my experience, my proposal strength, and my skills.
Performant and secure development is the result of my work.
French
Native or bilingual
Arabic
Native or bilingual
English
Fluent
Can work on-site
Antony (up to 50km)
Experience
- ENGIESenior Data Engineer & Cloud/Big Data ArchitectENERGY AND UTILITIESJune 2025 - Today (1 year)La Défense, France• Designed and delivered real-time ingestion pipelines for multi-source renewable data (wind, solar, hydro).• Built Energy APIs for internal consumers enabling low-latency operational decisionmaking.• Implemented automated data-quality pipeline (negatives, completeness, anomaly checks).• Set up cross-cloud archival workflows (Azure → AWS S3).• Impact: Improved operational monitoring reactivity, reduced incident response time, and enhanced market value optimization.
- ENGIESenior Data Engineer & Cloud/Big Data ArchitectENERGY AND UTILITIESMarch 2024 - May 2025 (1 year and 2 months)La Défense, France• Engineered ingestion pipelines for renewable asset performance and production data.• Automated computation of actual versus expected generation, production losses, and financial compensations.• Built a reusable Data Quality Framework using Great Expectations.• Implemented DataOps workflows ensuring auditability for billing processes.• Secured financial billing accuracy, automated loss detection, and increasedtransparency in performance monitoring.
- ENGIETech Lead • Cloud & Big Data ArchitectENERGY AND UTILITIESJanuary 2022 - February 2024 (2 years and 1 month)La Défense, France• Migrated high-volume Cloudera/Spark workloads to AWS (Glue, Lambda, Redshift, Kinesis, Athena…)• Designed event-driven and serverless architectures to replace legacy Hadoop operations.• Built orchestration pipelines using EventBridge and CloudWatch observability.• Supported forecasting workloads for day-ahead and long-term predictive modeling.• Achieved major scalability gains, significantly reduced operational expenses, and increased reliability of gas forecasting and procurement decisions.
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Education
- Master’s Degree — Computer ScienceUniversité de Franche-Comté2015
- Maîtrise (4-year Degree) — Applied Computer ScienceInstitut Supérieur de Gestion, Tunis2007
Certifications
- AWS Certified Solutions Architect - ProfessionalAWS2025