- Reconstruction of electrical distribution network elements in graph form. Optimized processing of over 4 hours from a proprietary solution to 8 minutes by the Spark/graphframe solution.- Implementation of big data use cases (Scala and PySpark) on the big data platform and their upload to the Oracle datawarehouse.- Unit testing with Scala - Job scheduling with Apache Airflow- Spark/Scala data referent on HTA projects- Data Analysis with DBeaver- Guide a junior member of the team

- Scalability of job scheduler programs (an alternative to Oozie) written in Spark with Scala supporting Hive, Spark and Sqoop jobs - Analysis of business needs for the implementation of data ingestion and distribution processes on Apache Nifi following a Lambda architecture - Migration of scripts from the datawarehouse to a Datalake using Big Data technologies - Realization of innovative projects: SOFCT the automatic commissioning tool. Pico credit the scoring tool for Orange Money subscribers for UV loans. Monitoring tool of the Data ecosystem of Orange Cameroon on Grafana - Project contributions: upgrade of the HDP cluster from 25 nodes to 33 nodes. Migration of the Big Data platform to GCP - Administration of the Big Data platform (HDP and HDF cluster. +25 nodes; +5TB RAM and +500TB storage) and reporting platforms (PowerBI, Webi, QlickView, Talend, oracle 11g datawarehouse) - Implementation and integration of SparkSql scripts to produce business KPIs on a job scheduler

- Backend with Java Spring boot- Frontend with Angular- Development of modules under the Odoo ERP with Python- Maintenance of a banking software with JEE- Participation in the redaction of technical offers

Implementation of a middleware for the integration of payment systems

In charge of mathematics for level 1 and 3 entrance exams in Cameroon's high schools

Design and implementation of a recommendation system engine using machine learning techniques