Freelancer profile translated to English.
Back to original languageAbout Moussa
7 years of experience as a Java/JEE and Big Data Hadoop/Spark Software Developer in various sectors (Telecom & Banking) have allowed me to develop my skills and increase my knowledge of client needs. I am looking for new challenges.
I integrate easily into new work contexts thanks to my team spirit and autonomy.
French
Native or bilingual
English
Conversational
Can work on-site
Poissy (up to 50km)
Experience
- Société GénéraleBIG DATA/JAVA EE DeveloperBANKING AND INSURANCEFebruary 2022 - Today (4 years and 4 months)Paris, FranceProject: Development of data collection automation tools and log analysis tools through a GUI.Role: Technical referent for Java Spring Boot for the clkRef application and member of the transverse Big Data ODH technical team (ITIM/DSR/ODH)Functional:• Study and Scoping of business requests• Estimation of evolutions• Participation in daily meetings• Updating task progress with Jira.• Participation in project committee meetingsTechnical:• Writing technical documentation for developed Jobs• Development of Spark Submit jobs for data analysis and KPI calculation (Spark/Scala)• Development of Scala UDF functions• Optimization and evolution of existing treatments (Spark/Scala)• Processing Json files to produce KPIs (Spark/Scala)• Setting up the technical architecture of the web application from scratch (Back-end: Maven Java Spring Boot)• Development of REST APIs with data pagination (JavaEE/Spring Boot)• Development of functionalities for analyzing files located on GIT (java, GIT API)• Development of functionalities for downloading data in CSV file format from the GUI (java)• Processing XML files to enrich the PostgreSql database (Java)• Development of parallel treatments (Java multithreading) to improve script processing time• Development of shell scripts for collecting files from external sources (S3, ...) to HDFS• Development of a data purge tool• Unit and integration testsProduction:• Deployment from testing to production with Jenkins• Management of production incidents• Technical support for the businessTechnical EnvironmentSpark 2.4, Scala 2.11.12, Spring Boot: Java 8-11, JPA, Maven, Hadoop, Hive, HDFS, Hue, Yarn, Shell, Kafka, CI/CD: Jenkins, Jira, Git, S3, ControlM, Putty, REST API, PostgreSql, XML-Json-CSV File, Kafka streaming MultithreadingMethodology: Agile
- ORANGEBig Data Hadoop DeveloperTELECOMMUNICATIONSJuly 2019 - December 2021 (2 years and 5 months)Guyancourt, FranceProject: Development of indicators for the business to analyze customer satisfaction based on offers (mobile, internet, fixed, box) in an agile environment.Role: Technical referent for the CEM (Customer Experience Management) perimeter (Mobile, Broad Band and Sensitive Client)Functional:• Scoping of business evolution requests and estimation• Participation in daily meetings, sprint planning, and sprint reviews• Updating task progress with Jira.• Updating project documentation.Technical:• Writing technical specifications• Industrialization of CEM Mobile use cases towards the Blueprint architecture• Scheduling of workflow treatments• Development of shell scripts to dynamize treatments• Development and maintenance of KPIs to enrich the star model (Hadoop Hive, Shell, Python)• Development of UDF functions (Java)• Optimization and Parallelization of intermediate workflow treatments to reduce execution time.• Hadoop Migration (version 2 to 3)Production:• Deployment from testing to production with Jenkins• Management of production incidents• Ensuring the proper functioning of workflows in production• Technical support for the businessTechnical Environment:Hadoop 2, Hive, Hdfs, Java 8, Tez, Hbase, Ambari, Oozie, Hue, Yarn, MapReduce, Python,Jenkins, GitLab, Shell, Kafka, Zookeeper, Cassandra, Kanban Agile method, JiraMethodology: Agile
- ODIGOJ2EE DeveloperTELECOMMUNICATIONSNovember 2018 - August 2019 (9 months)Issy-les-Moulineaux, FranceProject: Refactoring of the Opencell billing software in an agile environment.• Writing technical and functional specifications• Participation in workshops for brainstorming and designing new features• Setting up the project's technical architecture• Development and testing of new features• Parallelizing features to improve software performance• Development of reporting scripts• Integration of web services.• Using SonarLint for code quality.• Deploying the application in production with Docker.• Investigating performance issues with glowrootTechnical EnvironmentJava EE, Hibernate, Spring Boot, ElasticSearch, Jasper report, Docker, posgreSQL, Postman, API REST, SonarLint, Gitlab, Glowroot, Confluence, Linux, Putty, BeanioMethodology: Agile
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Education
- Licence (1, 2, 3) Mathématique Informatiquel'université Paris Est-Créteil (UPEC2014Licence (1, 2, 3) Mathématique Informatique
- Master (1 & 2) Développement Logiciel et Big Datal'université Paris-Est-Marne-La-Vallée (UPEM2016Master (1 & 2) Développement Logiciel et Big Data