MIGRATION / ZERO-DOWNTIME
Northstar Cutover
Phased migration with replication validation, rollback checkpoints and query baselines.
Database Administrator / Systems Steward
Where data stays brilliant.
I design calm, observable and resilient database ecosystems, turning production complexity into dependable signals, recoverable systems and measurable performance.
PRIMARYREPLICABACKUPOBSERVE
VIKTOR
HALE
HALE
01 / Signal profile
Reliability is a design choice.
A path from architecture to observability and recovery.
12Years around data
99.99%Availability mindset
40+Production instances
24Minute RTO target
02 / Featured missions
Production stories, not screenshots.
PERFORMANCE / FORENSICS
Hot Path Diagnosis
Mapped lock contention, I/O pressure and query patterns into a tuning plan.
RESILIENCE / RECOVERY
Recovery Drillbook
Built repeatable restore tests and runbooks so backups became proven recovery capability.
03 / Operations history
Close to the data plane.
Senior Database Administrator
Leading production reliability, capacity planning and performance engineering across high-availability services.
Database Administrator
Owned backup integrity, tuning, access governance and incident response.
Database Operations Engineer
Connected infrastructure signals with application behavior and recovery readiness.
04 / Tool constellation
Fluent across the stack.
The systems and practices shaping the work.
PostgreSQLSQL ServerMySQLOracleReplicationHA / DRQuery TuningBackup StrategyMonitoringLinuxAutomationSecurity
Operating rhythm
01
Observe
Establish baselines before changing the system.
Establish baselines before changing the system.
02
Isolate
Reduce noise to the smallest reproducible signal.
Reduce noise to the smallest reproducible signal.
03
Change safely
Use checkpoints and measurable outcomes.
Use checkpoints and measurable outcomes.
04
Institutionalize
Turn lessons into automation and runbooks.
Turn lessons into automation and runbooks.
05 / Open channel
Make the data layer calmer.
Available for database reliability, migration, performance and resilience conversations.
✉ viktor@example.com
☎ +420 2 5550 0171
◈ Prague, CZ