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Mahamoudou DiaMD

Mahamoudou Dia

Data Engineer

€350/day
Dakar, SN
3-7 years
ETL
Hadoop
Spark
Python
SQL

Average response time: 1 hour

Freelancer profile translated to English.
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About Mahamoudou

Data Engineer and Data Platform Engineer with hands-on experience in designing, implementing, and operating Big Data platforms in cloud-native environments on Kubernetes as well as on-premise Hadoop infrastructures.

I have worked on large-scale environments in the telecommunications and public sectors, contributing to the implementation of data pipelines, distributed processing systems, and the modernization of Big Data platforms.
Digital and IT Services

  • French

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • ATOS SENEGAL
    Data Engineer / Data Platform Engineer Consultant
    PUBLIC SECTOR
    October 2025 - Today (10 months)
    Dakar, Senegal
    General Directorate of Taxes and Domains of Senegal (DGID)
    Project: Fiscal Fraud Detection Platform – Expertise France / DGID
    Environment: Cloud-native, Kubernetes
    Responsibilities:
    → Design and implementation of data ingestion pipelines (tax and administrative data) with Apache NiFi
    → Setup of a Data Lake on MinIO based on a Medallion architecture
    → Data transformation and integration into Apache Iceberg (ACID support, partitioning optimization)
    → Workflow orchestration with Apache Airflow
    → Provision of reliable and usable datasets for Data & Analytics teams
    → Installation, administration, and optimization of the data platform on Kubernetes (high availability, horizontal scalability, performance optimization, and end-to-end incident management)
    Apache Nifi Apache Airflow Minio Apache Spark Kubernetes
  • ATOS SENEGAL
    Big Data Administrator
    TELECOMMUNICATIONS
    September 2023 - October 2025 (2 years and 1 month)
    Dakar, Senegal
    Orange Burkina Faso
    Project: CISA / RAMLA KPI
    → Design and deployment of scalable ETL pipelines (Oracle to PostgreSQL) for large-scale business data
    → Automation of workflows with Rundeck, improving reliability and reducing manual operations
    → Data processing and aggregation to produce critical business KPIs

    Orange Cameroon
    Project: CISA / Apache Airflow Migration
    → Administration, monitoring, and optimization of the Apache Airflow cluster
    → Installation and configuration of Airflow providers according to business needs
    → Migration of Spark, Hive, and Sqoop jobs to Airflow DAGs
    → Integration of new nodes and ensuring cluster scalability
    → Incident management and platform stability maintenance

    Orange Côte d’Ivoire
    Project: CISA / Hadoop Big Data Platform (Production & Pre-production)
    → Administration and monitoring of the Hadoop cluster (HDP) in production and pre-production
    → Management of Big Data service configuration, security, and access
    → Ensuring stability, availability, and incident resolution

    Orange Côte d’Ivoire
    Project: CISA / Apache NiFi Data Flows
    → Deployment and maintenance of an Apache NiFi cluster for data flow orchestration
    → LDAP configuration for authentication and access management
    → System monitoring and ensuring continuous availability of data pipelines
    → Incident management and platform reliability maintenance
    ETL Hadoop Apache Nifi Database HDP
  • ATOS SENEGAL
    Intern Big Data Administrator
    DIGITAL AND IT
    February 2023 - August 2023 (6 months)
    Dakar, Senegal
    Project: Atos Data Platform
    → Study, design, and deployment of a Kubernetes cluster for a data platform environment
    → Implementation of infrastructure components for administration, storage, and access control mechanisms
    → Deployment and configuration of Big Data platform services supporting ingestion flows, processing, and analytical workloads
    → Implementation of monitoring, observability, logging, and alerting capabilities for the platform
    Kubernetes Apache Spark Big Data Cloud Native Docker

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Education

  • Master in Network Engineering and Decision Support Systems
    Groupe ISM
    2022
    Master en Ingénierie des Réseaux et des Systèmes Décisionnels
  • Bachelor's degree in Computer Networks and Telecommunications
    AFI-L'université de l'entreprise
    2020
    Licence en Réseaux Informatiques et Télécommunications

Skill set

Batch Processing
Data integration (ETL, ELT and data warehousing)
Cloud Administration
Apache Nifi
Docker
Kubernetes

Categories