Dan Serban, High-Level Overview Well-rounded data engineer with deep knowledge of the internals of distributed datastores. Core Skills: ● Cassandra (Data Modeling, Troubleshooting Performance And Operational Issues) ● Druid (Stream Ingestion, Cluster Ops, Data Modeling, Scaling Complex Queries) ● Stream Processing At Scale: Kafka, Flink, Spark Streaming ● Languages: Scala, SQL (highly proficient), Python (proficient) Other Skills: Zookeeper, BigQuery, Redshift, Kinesis, Airflow, DBT, Snowflake, PrestoSQL. Solid experience working remotely. Work Experience Jan. 2016 - Present Software Engineer, Big Data At Algolia Inc. (Remote Work) Through my architectural design and engineering work, I enabled the successful entry into the AI-for-ecommerce space of Algolia, a young company specializing in semantic search and discovery for enterprise data. Architected and engineered the platform infrastructure and big data pieces of Algolia's end-to-end, turnkey ML platform currently being offered under the brand name MorphL. Stack: Apache Druid, Apache Cassandra, Apache Spark, Apache Kafka, Apache Airflow, Horovod, Kubernetes. Responsible for stream ingestion and the day-to-day administration of an 8-node Druid 0.17 cluster, and of an 11-node Cassandra 3.11.4 cluster, troubleshooting performance and operational issues, designing data models. Worked with the ML engineering team to productionize their DL research in an automated fashion, in order for DL training routines to run in parallel, under the control of the Horovod framework. April 2015 - Dec. 2015 Data Platform Architect At ThuisBezorgd.nl (eCommerce platform) Senior Data Platform Architect working with Cassandra, Kafka and Scala/Spark. Wrote Scala / Spark Streaming applications for near-real-time requirements, and developed a recommender system using SparkML's Alternate Least Squares algorithm. Jan. 2010 – March 2015 Scala / Cassandra Developer At Virtu Financial (Remote Work) Infrastructure support engineer (Apache Cassandra) and Scala developer. April 2005 - Dec. 2009 Internships And Junior Software Engineering Roles At Various Companies Activity: ETL / stored procedures / DWH pipeline / Oracle DB. Enterprise DW (Data Warehousing) and Data Marts - Kimball's methodology. Companies: - Siemens Business Services (Zürich Area, Switzerland) - Holcim (Zürich Area, Switzerland) - Shell Chemicals (Rotterdam Area, Netherlands) - OMV (Vienna, Austria) Education ETH Zurich, B.Sc. Computer Science 1998-2002 Video Introduction https://is.gd/dserbanvideointro2022 (Best viewed in Firefox/Chrome)