Pavel Rusakou
Founder & Lead Database Reliability Consultant
I help CTOs, infrastructure leads and engineering teams stabilize business-critical database systems, reduce production incidents and cut unnecessary infrastructure costs.

My background combines 10+ years of certified Oracle experience with hands-on PostgreSQL optimization, MySQL/MariaDB migrations, database support, schema restructuring and retention automation for high-load systems.

Database Rescue Lab is built for teams that need senior production database expertise without hiring a full-time DBA team. The focus is practical: find the root cause, reduce risk, improve performance and turn findings into clear engineering actions.

Database Rescue Services

Practical database reliability services for production systems: from incident investigation and performance audits to migrations, retention automation and cost optimization.

  • Database Reliability Audit

    A senior review of PostgreSQL, MySQL/MariaDB or Oracle environments: performance, slow queries, indexes, configuration, backups, replication, monitoring and operational risks.
    🛠 Result: clear risk map and Jira-ready action plan

  • Production Database Rescue

    Investigation and stabilization of production database issues: latency spikes, high CPU, lock contention, replication lag, slow releases, failed migrations and unclear database failures.
    ⏱ Result: root cause, stabilization plan and safe next steps

  • Migration & Retention Automation

    Database migrations, schema restructuring and automated retention jobs for high-volume systems. We help remove historical data safely, reduce manual work and keep production stable under load.
    💾 Result: safer migrations, automated cleanup and lower operational overhead

  • Cloud & Database Cost Optimization

    Review of database infrastructure, cloud sizing, storage, backups, monitoring and workload patterns to identify unnecessary costs without sacrificing stability.
    📉 Result: lower infrastructure cost with controlled production risk

  • Fractional DBA / Database Advisor

    Ongoing senior database support for teams that need architectural guidance, release reviews, query reviews, incident follow-up and practical DBA expertise without hiring full-time.
    ⏱ Result: senior database expertise on demand
Book a technical review
Case Study: Automated Retention for High-Volume Database Tables
A production system was accumulating hundreds of millions of historical records. Cleanup was handled manually by developers and gradually became a separate long-running engineering project.

The database structure was reviewed and redesigned so historical data could be removed safely while the service remained online.

A retention automation process was implemented with:
— rule-based cleanup by retention period
— batch execution without long blocking operations
— predictable execution under production load
— no manual developer involvement

Result:
— cleanup became fully automated
— execution time was reduced from weeks/months to minutes
— developer involvement was removed from the process
— production service remained online during the change

The outcome was a manual, risky and time-consuming database operation converted into a predictable automated process at the architecture level.
Why teams work with Database Rescue Lab
Senior database reliability expertise for production systems where downtime, latency and uncontrolled costs directly affect the business.
  • Root-cause focused
    We focus on the real cause of database problems: query patterns, schema design, indexes, configuration, workload behavior and operational process — not only temporary fixes.
  • Business-critical experience
    Experience with high-load and business-critical database systems where mistakes can lead to downtime, data risks, financial losses or customer impact.
  • Production-safe delivery
    Changes are planned with real production load in mind: minimal downtime, controlled rollout, rollback options and clear risk communication.
  • Measurable outcomes
    Recommendations are connected to measurable results: lower latency, reduced load, fewer incidents, safer releases and optimized infrastructure costs.
Practical engineering background
Oracle-certified database background
10+ years of certified Oracle experience, including enterprise database environments, performance troubleshooting and architecture-level database work.
PostgreSQL and production audits
Regular hands-on PostgreSQL performance reviews, query analysis, incident investigation, monitoring review and database reliability recommendations for production systems.
MySQL/MariaDB migrations and automation
Practical experience with MySQL/MariaDB migrations, support, schema restructuring and automated retention jobs for high-volume systems.
Let’s review your database risk
Describe the database issue, incident, migration or cost problem you want to solve. We will suggest the best next step: audit, rescue investigation, advisory session or implementation support.

Simple process: discovery call → technical investigation → Jira-ready action plan.
Contact
Email: pavel.rusakou@gmail.com
Telegram: @PavelRusakou
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