Description

Senior SRE & Data Product Engineer | DWH Infrastructure Expert

With over 10 years of experience managing mission-critical data ecosystems, I help companies build resilient, high-performance Data Warehouses that scale. My expertise lies at the intersection of Database Administration (Greenplum, PostgreSQL, Oracle) and Modern DevOps/SRE practices, ensuring that your data infrastructure is a reliable product, not just a tool.

Why work with me?

Architectural Resilience: Expert in high-availability (99.9%) and disaster recovery for massive retail DWH clusters (up to 400TB).
Automation-First Mindset: I eliminate manual toil using Terraform and Ansible, reducing environment setup times by up to 70%.
Deep Technical Expertise: I build database engines from source with custom kernel optimizations for maximum performance.

What I can do for you:

Modernize & Migrate: Transition legacy systems (Solaris/HP-UX) to modern Open Source stacks (Greenplum/PostgreSQL).
Optimize Performance: Deep-level SQL tuning and observability setup (Prometheus/Grafana) to reduce MTTR.
Scale Data Delivery: Robust data streaming (Oracle GoldenGate to Kafka) and integration workflows.

Collaboration & Relocation Goals

I am currently planning a relocation to Valencia, Spain, and I am actively seeking opportunities with organizations that can offer relocation support or visa sponsorship.

To ensure a perfect cultural and technical fit, I am open to starting our collaboration remotely for an initial period. This allows me to deliver immediate value to your projects while we finalize the transition process.

Let’s build a data platform that powers your business growth.

Languages

Russian
Native or bilingual
English
Conversational
Spanish
Basic

Workplace preferences

Can work on-site

Valencia (up to 50km)

Leroy Merlin
Senior Site Reliability Engineer
RETAIL (LARGE RETAILERS)
October 2023 - Today (2 years and 8 months)
Krasnodar, Krasnodar Krai, Russia
• - Custom Database Engineering: Reduced deployment cycles by automating the building of Greenplum DB from source, ensuring tailored optimizations for company-specific workloads.
• - Disaster Recovery & Resilience: Actively restored DWH functionality after major hardware failures; re-architected RAID storage to prevent future data loss.
• - Observability Stack: Engineered a comprehensive monitoring ecosystem using Prometheus, Grafana, and ELK, integrating it with support lines to reduce MTTR (Mean Time To Recovery).
• - Cloud & Infrastructure: Led the migration and deployment of DWH environments to the cloud using IaC (Terraform, Ansible) and managed metadata delivery via Jenkins/Groovy CI/CD pipelines.
• - Hardware Life-cycle: Successfully executed a full hardware refresh for the cluster, ensuring seamless transition and zero downtime for business users.
High-Load Infrastructure Infrastructure as Code (IaC) Database Site Reliability (SRE) Data Pipelines and Warehousing ETL (Extract, Transform, Load) Processes
DataBase Intelligence(DBI)
Lead Oracle Database Administrator
June 2011 - October 2023 (12 years and 4 months)
Rostov-on-Don, RO, Russia
• - Technical Leadership: Managed a team of DBAs supporting 200+ databases in a high-pressure Enterprise environment.
• - Exadata Expertise: Hands-on administration of Exadata Database Machines (12c-19c), including Grid Infrastructure and GoldenGate for real-time data integration.
• - Performance & Tuning: Specialized in deep-level SQL and database tuning, identifying bottlenecks in complex EBS R12 and RAC environments.
• - Platform Migration: Orchestrated large-scale database migrations across different architectures (from Solaris/HP-UX to RHEL/Debian) and versions.
• - Multi-Engine Experience: Acted as a consultant for HP Vertica and Greenplum architecture design, bridging the gap between traditional RDBMS and modern Columnar/MPP systems.
Oracle Exadata MPP Databases (Greenplum) High-Load Infrastructure Data Migration & Architecture Oracle GoldenGate