Yossi Levi

Exactera Solutions is a FinTech company centered around international trade law and finance

Responsibilities:

• Designed and implemented novel ETL process used to normalizing private and public financial reports using PySpark on AWS infrastructure.
• Built agnostic transfer system between our data-warehouse to data-marts transfer system .
• Worked with Product, management and backend developers to design our product data-mart relational databases
• Performed multiple POC’s into new technologies and design changes.
• Set up BI upstream process with both CDC and data at rest replication
• Worked with Development teams to better their SQL skills including best practices, performance tuning and design.

Lifion is one of the R&D branches of ADP responsible for developing ADP's own CRM software to compete with Salesforce

Responsibilities:

• Refactored existing RDBMS structures for better performance and scalability.
• Narrated and maintained MySQL Docker files for "per client" deployment.
• Running Advance POC’s checking technologies, performance and maintenance options.
• Enhanced system performance by designing and implementing scalable data solutions for high-traffic applications..
• Developed automated cleanup systems using Jenkins and shell to clean ten's of thousands of unused indexes, and tables.

PLYMedia created the world’s leading Performance-Based advertising ecosystem

Responsibilities:

• Managed a team of five data engineers through day to day maintenance, development and troubleshooting complex Hive, PySpark, Pig and MySQL architecture.
• Responsible for administration, upgrades, maintenance, DR, HA, backup and recovery for the company's operational Databases and file based datalake
• Writing, supporting and optimizing ETL processes to copy data from operational MySQL databases to our Hadoop datalake
• Mentored junior team members in best practices for software development, code optimization, and troubleshooting techniques with Big Data and Relational Databases
• Designed and created a complete database and data integrity monitoring framework from scratch
• My team and I were responsible for our BI and data analysis. With a deep understanding of the company’s business requirements my We found new ways to look at our raw and digested data to improve client’s experience
• Deployed and migrated from on-prem to Cloud platforms (Google Cloud and AWS)

MyThings is a personalized retargeting specialist providing advertisers with display ads, in real time

Responsibilities:

• Managed data-mart that grew from 1Tb to 4Tb as infrastructure and applicative Senior DBA
• Integrated big data systems: HDFS, Hive, Mongo, Exasol and Redshift
• Investigated and executed performance tuning routines on hardware, database and ETL.

Started as a Junior MS SQL DBA, Ended as Senior DBA on MS SQL, MySQL and PostgerSQL