- Developed a query regional service for OS event logs using Presto/Trino and additional search engines over near real time ingested data.- Led S1 EDR load tests project running ramped up distributed load on all EDR APIs- Implemented a new “process graph” feature that allows viewing the timeline of all processes related to a queried OS process- Led DB queries performance improvement on EDR APIs- Led backend profiling for multithreaded EDR flows- Created an “account management“ regional service that is updated via a CDC mechanism using Apache Kafka.- Developed various Frontend features with ReactJS

- Led AWS and Snowflake cost reduction while increasing throughput for several systems- Managed and created Apache Airflow hundreds of ETL pipelines (DAGs)- Led SRE availability project for XDR data ingestion flows based on time series data and other criteria- In charge of devops and SRE data infrastructure using AWS, Terraform, K8s, Helm and Prometheus

- Worked in a small, highly efficient and very independent team of 4 engineers- Developed the ecosystem for our company's Data-Warehouse, using the following technologies: Apache Airflow, Apache Spark, Apache Kafka, Snowflake and AWS various services.- Developed and maintained Apache Spark jobs (Scala).- Developed and maintained various backend services written in Scala and NodeJS using as databases Cassandra, Mysql, Druid and Snowflake.- Developed and maintained Airflow DAGs in Python.- CI/CD done with Gitlab, deployments to DC/OS and Kubernetes.

- Worked in a CI/CD environment, with micro services using RESTful APIs- Developed and worked with Backend and Frontend code written in NodeJS, ReactJS and Scala.- Worked with SQL (mysql) and NoSQL databases (Cassandra) - Gained experience working with streaming using Apache Kafka- Created projects and services from scratch, testing them, deploying to dev. and prod. environments (DC/OS) using and creating CI/CD pipelines with Gitlab.

- Developed a resilience testing framework used by all main company logic flows tests- Created a micro service that allows the creation of a downloadable custom made test framework to match different LP flows