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Rein Koch

@reinkoch

Senior Data Architect at Replika who cut data pipeline processing latency from 42 minutes to 11 minutes.

Estonia
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At Replika, I architected production AI data infrastructure using Python, SQL, Apache Spark, and Databricks patterns. I cut end-to-end processing latency from 42 minutes to 11 minutes by optimizing distributed pipelines.

I also designed data services supporting 3.2 million user profiles and established cloud-native architecture principles across AWS, Azure, and GCP. Automated CI/CD validation and deployment controls helped reduce pipeline-related operational incidents by 37%.

At Supersimple, I designed an enterprise analytics platform connecting machine learning services, structured data processing, and reporting. Its ingestion and transformation pipelines reduced average processing time from 28 minutes to 9 minutes.

Earlier, at Ready Player Me and the Estonian Defense Forces, I developed AI application services and secure enterprise software. Across these roles, I worked on data processing, production machine learning integrations, and scalable backend services.

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Education

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Tallinn University of Technology logoTT

Tallinn University of Technology

Master of Computer Science, Computer Science

2008 - 2013

Master of Computer Science degree from Tallinn University of Technology, completed in 2013.

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