Senior Data Platform Engineer | 20+ years optimizing high-performance database systems | Former CTO at ProxySQL, senior consultant at Percona and Pythian. Previously consulted for Kraken Digital Asset Exchange, ClickFunnels, and gaming platforms (OPAP, Intralot).
What I do:
* MySQL / MariaDB & ClickHouse performance optimization and architecture
* High-volume data pipelines (100M+ events/day)
* Database migrations without downtime
* Production firefighting and emergency optimization
Remote: Yes
Willing to relocate: Only for short durations
Technologies: MySQL, ClickHouse, ProxySQL, PostgreSQL, Python, ETL/Data Pipelines, ZooKeeper, Docker, Linux, Database Architecture, Performance Optimization
Résumé/CV: Available on request
Email: nvyzas@gmail.com
Senior Data Platform Engineer | 20+ years optimizing high-performance database systems | Former CTO at ProxySQL, senior consultant at Percona and Pythian. Previously consulted for Kraken Digital Asset Exchange, ClickFunnels, and gaming platforms (OPAP, Intralot).
What I do:
* MySQL / MariaDB & ClickHouse performance optimization and architecture
* High-volume data pipelines (100M+ events/day)
* Database migrations without downtime
* Production firefighting and emergency optimization
* Replication, clustering, disaster recovery
Recent projects:
* Architecting MySQL & ClickHouse multi-server clusters processing 500M+ daily analytics events
* Reducing platform query latency by 80% through connection pooling optimization
* Built data deduplication pipeline eliminating 95% of duplicate records in production
* Zero-downtime High Availability solutions and database migrations
Specialties: regulated environments, fintech, telco, gaming, gambling, crypto, advertising analytics
Rate: $135-165/hr | Available immediately for contract work