Julien WAZNE

Part-Time CTO / Data Consultant 20 years of experience, including 14 as a freelance consultant. Technical architecture design, implementation, project management, best practices setup, and developer coaching. ⸻ Open Source BI Expert in designing technical architectures and developing Open Source BI solutions (SQL development, Pentaho, Jasper, BIRT, Talend, Dash by Plotly, Metabase, Oracle, PostgreSQL, MySQL, Unix). Experience level: 20+ years ⸻ Data Engineering Design and implementation of data pipelines using the following technologies: • Scala • Python • Spark • Airflow • Microservices • Pub/Sub • Kafka ⸻ Cloud Architecture Deep knowledge of Cloud/Serverless concepts and hands-on experience with the following platforms: • AWS (EMR, Glue Job, Lambda, Batch, ECS, RDS, Redshift, Step Functions) • GCP (GCS, Dataproc, Composer, BigQuery, BigTable, Stackdriver, Cloud Functions, Cloud Run, Pub/Sub) • Azure (Container Apps, Container Instances) • Snowflake • DevOps: Terraform, Docker Experience level: 10+ years ⸻ Web Development Design and development of reactive and collaborative web applications. API and microservices development. Languages/Frameworks: Django (Python), Phoenix (Elixir), Erlang, ELM, JavaScript Experience level: 20+ years ⸻ Project Management Experienced project manager and PMP-certified, ensuring strong alignment between business goals and technical execution.

Prezance is a collaborative slide editor allowing to dynamically browse data through slides ensuring traceability and security. www.prezance.com My role as Chief Technology Officer: • Developing MVP presented to Vivatech 2016 • Global technical architecture and data interfaces • System administration of owned servers • Use of functional languages for both backend and frontend developments • Conception and development of a messages broker to synchronise the decentralized user applications • Resources recruiting, Team leading and Developments follow-up using scrum methodology Technologies: PostgreSQL, Elixir, Phoenix, ELM, Python, Flask, Javascript, FreeBSD, Jenkins, Trac, Gitlab

• Business Analysis, Conception and technical implementation, Project Management, Team Leader • Designed a web application to provide reporting for the group customers for both Italian and French departments • Change Manager for all the corporate IT applications • UAT preparation and follow-up • Managed a team of 10 Java and BI developers Technologies: Java/J2EE, IBM Datastage, Talend, JasperReports, BIRT, Palo, Scrum

• In charge of all the trading applications (back-office and front-office) and web sites • About 100 users spreaded in 20 agency all over France • Project Management, Business Analysis, Conception, Development and Support Java/J2EE, SQL, Struts, Hibernate, Spring