Professional Summary
Senior data engineer with 10+ years designing and scaling large-scale data platforms. I build distributed pipelines (1B+ events per day), lead cloud migrations, and architect end-to-end data ecosystems on AWS and GCP. Strong with Spark, Kafka and modern lakehouse formats (Delta / Iceberg), Medallion architectures, data modeling and governance — delivering reliable, high-performance, scalable systems.
Core Skills
- Processing and Orchestration
- Spark, PySpark, Databricks; Kafka, Kinesis, Pub/Sub; Airflow, Cloud Composer, Step Functions
- Lakehouse and Formats
- Delta Lake, Iceberg, Parquet, Avro, ORC; Medallion (Bronze/Silver/Gold)
- AWS
- S3, Glue, EMR, Redshift, Athena, Kinesis, Lambda
- GCP
- BigQuery, GCS, Dataflow, Pub/Sub; Databricks on AWS/GCP
- Databases
- MongoDB, MySQL, PostgreSQL, Elasticsearch, ClickHouse, ScyllaDB, Redis
- Platform and BI
- Docker, Kubernetes, Terraform, CI/CD; Python, Node.js; Power BI, Looker Studio
Professional Experience
M and M Media (Trebel Music) — Senior Data Engineer
2016 – Present
- Designed and maintained pipelines processing 1B+ events daily with high availability and integrity.
- Led cloud/DB migrations: Azure to GCP, and 500M+ MongoDB records to ScyllaDB with zero downtime.
- Built distributed ETL/ELT (PySpark, GCP Dataflow, AWS Glue/EMR, Kafka); Medallion data lake on S3/GCS (Parquet/Iceberg).
- Data modeling (Star/Snowflake, SCD 1/2, partitioning, Z-ordering); governance (data contracts, lineage, DQ checks); KPI dashboards (Power BI, Looker Studio).
Tools: Python, PySpark, Spark, Databricks, Kafka, AWS (S3/Glue/EMR/Redshift/Athena/Kinesis), GCP (BigQuery/GCS/Dataflow), ScyllaDB, ClickHouse, Docker, K8s
Cross Hi-Tech — Senior Full-Stack Developer
2013 – 2016
- Architected MySQL databases for performance, reliability and scalability.
- Built secure payment platforms (Stripe, PayPal and others) and a full billing/invoicing system.
Tools: PHP, JavaScript, jQuery, MySQL
Education & Certifications
Master's in Mathematics (Differential Equations) — Yerevan State University
Bachelor of Mathematics — Yerevan State University