Stellantis
Ghazi Ben Ahmed
Stellantis
Data engineer · 2021–2022
2TB a day from 500K+ connected vehicles, turned into a dashboard for 200+ dealers
Telemetry from connected vehicles across Europe had to become something dealers could act on.
My part
I designed the Spark Streaming pipelines on AWS, implemented the predictive maintenance models, and created the fleet performance dashboard.
What the team delivered
10M+ events an hour, subsecond latency
Issues identified 2 weeks before failure, with 87% accuracy
Processing costs cut by 45%
Vehicle uptime up 23%
Stack: Spark Streaming · AWS EMR · S3 · Kinesis · Terraform · Python · Scala · Grafana
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Posted Oct 24, 2026
Designed Spark Streaming pipelines and predictive maintenance models for 500K+ connected vehicles, processing 10M+ events/hour with subsecond latency.
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