Oracle · RAC · Exadata · Data Guard · GoldenGate

Oracle DBA Consultant
Auckland & NZ

Senior Oracle DBA consulting for production environments that need deep troubleshooting, upgrade planning, HA/DR review, performance tuning, migration readiness or a bridge from Oracle platforms to AWS and PostgreSQL targets.

Available immediately for contract & partner subcontracting · Auckland / Remote ANZ

Send the database problem →View case studies →

NZ-based senior specialistAuckland presence, ANZ remote delivery.

Oracle + PostgreSQL depthOCM background with AWS database focus.

Production-first deliveryAssessment, change control, rollback and runbooks.

Partner friendlyContracting, subcontracting and advisory support.

When to call me

Production issue

Oracle is affecting operations

Performance regressions, availability concerns, replication gaps, Data Guard/RAC issues or slow incident recovery need experienced Oracle judgement.

Root-cause review
Safe remediation
RCA handover

Modernisation

Oracle needs to move or change

Upgrade, consolidation, cloud migration or Oracle-to-PostgreSQL planning requires realistic complexity assessment before timelines are promised.

Upgrade/migration assessment
Dependency review
Cutover planning

HA/DR

Resilience needs proof

Backups, restore testing, Data Guard, failover, monitoring and runbooks need to be validated, not assumed.

DR review
Restore validation
Operational readiness

Oracle areas I cover

Core DBA

RAC, Data Guard and performance

Oracle 9i to 19c background, RAC, ASM, Data Guard, OEM, SQL tuning, workload diagnosis and availability patterns.

RAC/Data Guard
SQL tuning
Operational support

Enterprise platforms

Exadata and replication experience

Experience across Exadata, GoldenGate/SharePlex-style replication patterns, high-availability platforms and regulated production environments.

Exadata context
Replication posture
Change control

Migration bridge

Oracle source to modern target

Assess PL/SQL, schema, jobs, data volume, integrations and performance-critical SQL before choosing PostgreSQL, Aurora or another pathway.

Source complexity
Target fit
Risk register

Typical deliverables

Operational outputs

Health and risk review
Performance findings
Backup/restore or DR recommendations
Incident RCA and remediation plan

Migration/upgrade outputs

Source complexity assessment
Upgrade or migration roadmap
Cutover and rollback plan
Validation checklist

Handover

Runbooks and support notes
Stakeholder summary
Knowledge transfer
Next-step options

Best-fit engagement

Suitable for urgent Oracle triage, fixed-scope health checks, HA/DR reviews, upgrade planning and migration-readiness work.

Where Oracle depth still matters

High-value legacy systems

Many Oracle estates still carry core business logic, reporting dependencies and availability requirements that need senior care even during modernisation.

Migration source truth

A safe migration starts by understanding the Oracle source properly: performance-critical SQL, packages, jobs, replication, backup and recovery behaviour.

Resilience and recovery

RAC, Data Guard, backups, restore testing and operational procedures should be reviewed as real recovery mechanisms, not just architecture labels.