Merchandise Product Team, Data Platform

• Created and promoted a library that streamlined Kafka Streams applications development, adopted by 30+ data engineers.
• Contributed to the migration of multiple pipeline components from on-premises to Google Cloud :
  • Spark jobs to Dataproc, including the business-critical Carrefour’s e-commerce price calculator
  • Transitioned APIs to Bigtable
  • Migrated applications to Kubernetes
• Participated in design and development of a Kappa pipeline leveraging Kafka Streams, BigQuery, and Bigtable. - Built and optimized stateful Kafka Streams applications that accelerated data availability for API consumption from hours to seconds.
• Provided occasional L3 support for production issues, ensuring business continuation and system uptime.
• Mentored new team members. Organized and participated in technical and functional upskilling sessions to foster knowledge sharing.

Data Driven Replenishment Team, Data Platform

• Developed a replenishment algorithm (Spark/Scala) integrating 10+ data sources with strong real-world implications (daily truck deliveries to dozens of stores), meeting a tight 3-month MVP deadline.
• Created REST APIs, backed by ElasticSearch, used for web
  application

• Organized daily stand-ups, sprint planning and retrospective ceremonies to foster communication and transparency within a team including 1 PM, 3 PO, ~7 developers, and 1 QA.
• Cultivated a positive team culture by encouraging mutual support and a "no-question-is-dumb" mindset.
• Employed Jira to manage product backlog, prioritize issues, track team progress and estimate capacity.

• Designed a PoC for radio stations monitoring system using Kafka Streams, InfluxData and Grafana.
• Conducted a market analysis of time-series databases (InfluxDB, Prometheus, Graphite, etc.), and benchmarked InfluxDB.
• Created custom Grafana dashboards to provide radio stations performance insights.