# Karen Tatsevasian

> Senior Software Engineer

Location: Seattle, Washington, United States
Profile: https://flows.cv/karentatsevasian

Versatile Software Engineer with 6+ years of experience delivering end-to-end solutions across data engineering, backend development, and infrastructure. Currently at Apple, improving ETL pipeline reliability, implementing data quality checks, and building monitoring integrations. Known for quickly adapting to new technologies and solving complex problems across the full stack. Focused on system reliability, data quality, and operational excellence.

## Work Experience
### Senior Software Engineer @ Apple
Jan 2024 – Present | Сиэтл, WA
Maintaining and enhancing a critical ETL platform that transfers data from HDFS to multiple downstream systems including Cassandra and Snowflake.

Responsibilities:

Design and implement new features to enhance ETL service functionality
Optimize Spark job performance through transformation logic analysis and configuration tuning
Implement data quality checks and validation using Deequ framework
Build monitoring integrations with internal systems for pipeline observability
Enhance incident response processes and implement automated alerting
Troubleshoot production issues to minimize downtime
Onboard new teams and jobs to the platform

### Senior Software Engineer @ Grid Dynamics
Jan 2021 – Jan 2024 | Польша
Contracted to Apple, delivering infrastructure and platform solutions across multiple teams.

Project 1: Report Download Service Migrated a reporting service to Kubernetes and improved its observability and reliability.

Migrated service to Kubernetes and integrated with monitoring systems
Implemented RED method metrics and load testing with Gatling
Added integration tests and migrated build system from Maven to Gradle
Environment: Kubernetes, Docker, Helm, Java (Spring), Python, Gatling

Project 2: On-Premise Sentry Maintained and upgraded a high-load, distributed error-tracking system serving internal engineering teams.

Updated Sentry-related services (Sentry, Snuba, Relay) to newer versions
Added custom integrations with OpenDirectory and Jira
Fixed existing integrations with Slack and GitHub
Implemented PostgreSQL/ClickHouse backup and migration pipelines

### Senior Java Developer @ Sberbank
Jan 2020 – Jan 2021 | Москва
Built a backend service for managing and versioning reference data used across multiple banking applications.

Responsibilities:

Developed features end-to-end from specification to deployment
Optimized SQL queries for improved performance
Implemented digital signature creation and verification
Set up OpenShift/Kubernetes with service mesh for secure traffic routing
Created Jenkins pipelines for CI/CD automation


## Education
### Bachelor of Applied Science (BASc) in applied physics and mathematics
Moscow Institute of Physics and Technology (State University) (MIPT)
Jan 2009 – Jan 2013


## Contact & Social
- LinkedIn: https://linkedin.com/in/karen-tatsevasian-34049a112

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Source: https://flows.cv/karentatsevasian
JSON Resume: https://flows.cv/karentatsevasian/resume.json
Last updated: 2026-03-22