Freelancer profile translated to English.
Back to original languageAbout Julian
I have many years of experience as a consultant for large companies, combined with a strong background in Data Engineering and a strong ability to acquire new knowledge. Capable of working in a team and functioning autonomously, I have a good sense of organization and proven skills in developing applications with high data volume and carrying out ETL.
Passionate about massive data processing issues, I would like to have the opportunity to work in dynamic contexts that allow me to grow intellectually.
French
Native or bilingual
English
Fluent
Italian
Conversational
Can work on-site
Paris (up to 50km), Montpellier (up to 15km), Lyon (up to 20km), Saint-Étienne (up to 30km)
Experience
- engieData EngineerENERGY AND UTILITIESOctober 2024 - Today (1 year and 8 months)Maintenance and evolution of a data solution on AWS.Needs gathering and data management acculturation according to group strategy.
- EnedisBig Data engineerENERGY AND UTILITIESAugust 2021 - January 2024 (2 years and 6 months)Lyon, FranceSpark Developer within an agile team of 40 people to create an application for steering and decision-making. Over 15,000 data points and a volume of ~90 TB.Development of a data flow migration from the Cascading Framework to Spark.Migration of data storage from Hadoop HDFS to CEPH Object (equivalent to AWS S3).Development of tools to validate data integrity during migration.Optimization of Spark flows to reduce execution time.Interfacing with data sources in various formats: relational databases (Oracle), messages (Kafka), or text files (XML, JSON).Analysis of client needs and specification development in collaboration with Data Analysts.Data exchange and flow design for Data Scientists.Participate in Agile organizationScrum – Sprints of 3-4 weeks, planning, review, retrospective.Kanban - Retrospective every two months, push flow operation.Leading a beginner Apache Spark training in PySpark.
- Sopra SteriaDéveloppeur Big DataCONSULTING AND AUDITSSeptember 2019 - August 2021 (1 year and 11 months)Spark Developer within an agile team of 12 people to maintain and evolve the data lake feeding flows.Tasks and achievements:Management of a data lake recalculated every hour.Manipulation of the Hadoop ecosystemSpark programming in Scala/JavaOptimization of resources allocated for flowsFlow management with Nifi / KafkaMaking data available in a Hive databaseClient Training
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Education
- Computer and Electronic EngineeringTélécom Saint-Etienne2021Spécialité Data Engineering. A été étudié tout le cycle de vie de la donnée, de sa collecte par la conception de carte électronique et IOT, en passant par son transport et sa transformation, pour finir par son exploitation via des Dashboard ou l'IA.