Freelancer profile translated to English.
Back to original languageAbout Achraf
Triple certified AWS (Data Engineer, Solutions Architect, AI Practitioner), I help companies design, migrate, and optimize their data architectures on the Cloud.
With 15 years of experience in data engineering on critical and very high-volume production systems (Telecom BSS, Billing, Provisioning), I combine the proven reliability of demanding On-Premise environments with the flexibility of modern Cloud architectures. I build robust, scalable, and automated ETL/ELT pipelines.
🛠️ My technical expertise:
- AWS Data Engineering: Data Lake design (S3), medallion architecture, columnar formats (Parquet).
- ETL/ELT & Big Data: Apache Spark, PySpark, Python, complex SQL and optimization of batch processing.
- AWS Ecosystem: Glue, Athena, Step Functions, EventBridge, Lambda, Redshift.
- Databases (Cloud & Legacy): DynamoDB, RDS, expert mastery of Oracle 19c and PL/SQL (optimization on volumes of several million lines).
- DevOps & IaC: Terraform, CI/CD (GitHub Actions, GitLab), Docker, IAM least-privilege.
💡 Why work with me? Accustomed to demanding environments (critical P1/P2 SLAs) and Agile methodologies (Scrum), I know how to bridge the gap between business needs and complex technical challenges.
🌍 Languages: French (bilingual) · English (C1, IELTS) · Arabic (native) · German (B1)
💻 Availability: immediate · remote work preferred (hybrid possible)
Let's talk about your Cloud migration project or your data pipeline.
Arabic
Native or bilingual
French
Native or bilingual
English
Fluent
German
Conversational
Can work on-site
Versailles (up to 20km)
Experience
- Bouygues TelecomPL/SQL & Python Study & Development EngineerTELECOMMUNICATIONSMarch 2022 - October 2025 (3 years and 7 months)Meudon, FranceStack: Oracle, PL/SQL, Python, Java/Spring Boot, UNIX, Shell, REST API.Domain: Telecom BSS (order, eligibility, provisioning, VoIP, rating, billing, portability).Mission within the BSS Study & Development teams at Bouygues Telecom, on critical application chains handling Fixed and FAI orders, eligibility, and provisioning.▸ Gathering and formalizing business requirements, writing functional and technical specifications.▸ Multi-system impact analysis and production of design documents on a complex IS interconnecting several BSS applications.▸ Backend Oracle / PL/SQL development: packages, stored procedures, triggers, functions. Query optimization and tuning for large volume processing.▸ Automation of recurring tasks via Python and Shell scripts in UNIX environment (extractions, consistency checks, batch processing).▸ Design and development of REST APIs in Java / Spring Boot for inter-application integration between BSS components.▸ Unit tests, technical acceptance, production deployment, and post-deployment support.
- Bouygues TelecomN3 BSS Support Consultant – Fixed / FAITELECOMMUNICATIONSFebruary 2018 - March 2022 (4 years and 1 month)Meudon, FranceStack: Oracle, PL/SQL, Python, Java, UNIX, Shell.Domain: N3 Support Fixed / FAI BSS (order, eligibility, provisioning, billing, portability chains).N3 technical referent for Bouygues Telecom's Fixed and FAI BSS systems. Interface between business, operations, network, and development teams for diagnosing and resolving critical production incidents, while respecting SLA commitments.▸ Diagnosis and root cause analysis of incidents on interconnected BSS application chains: order, eligibility, provisioning, rating, billing, portability.▸ Development, testing, and deployment of PL/SQL fixes in a BSS/Oracle environment, respecting SLA deadlines and production windows.▸ Coordination of multi-system impact analyses with network, IS, and operations teams on cross-functional incidents involving multiple applications.▸ Handling ad hoc business requests: extractions, complex SQL queries, data audits, automation scripts in Python and Shell.▸ Documentation of recurring incidents and knowledge capitalization: writing operating procedures and resolution procedures to improve RUN reliability.
- Maroc TelecomBSCS Support & Validation Engineer – MobileTELECOMMUNICATIONSDecember 2010 - December 2017 (7 years)Rabat, MoroccoStack: Oracle, PL/SQL, UNIX, Shell, Pro*C, Toad, HP Quality Center.Software: BSCS 7 / iX R2 (Rating & Billing).Domain: Support and validation of Mobile billing systems.Mission within the BSCS Support & Validation teams at Maroc Telecom, a leading telecom operator in Morocco, on the Mobile billing system based on Ericsson's BSCS software (Rating and Billing modules).▸ N2 Support for Rating and Billing chains: diagnosis, root cause analysis, and incident resolution impacting Mobile subscriber billing.▸ Detection and qualification of affected cases due to anomalies: scope assessment, impact estimation, and coordination of regularization actions with business teams.▸ Writing and execution of BSCS Kernel and non-Kernel acceptance test scenarios: functional tests, non-regression tests, validation of version upgrades and vendor patches.▸ Development and maintenance of PL/SQL scripts for automating checks, data extractions, and mass case processing.▸ Incident tracking and knowledge capitalization via HP Quality Center: documentation, traceability, and reporting to business teams and the vendor.
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Education
- State Engineering Degree in Computer ScienceENSIAS – Univ. Mohamed V2010Ingénieur d'État en Informatique
- Preparatory Classes (CPGE)ERA Marrakech / Benghazi Rabat2007Maths, Physique, Sciences de l’Ingénieur
Certifications
- AWS Certified AI PractitionerAmazon Web Services (AWS)2026
- AWS Certified Solutions Architect – AssociateAmazon Web Services (AWS)2026