Rebecca (Zaijin) Han

Results-driven professional with over 27 years of extensive experience in designing, developing, and implementing Oracle databases and applications across diverse sectors, including retail, telecom, finance, and government. Expertise includes performance tuning, RMAN backup and disaster recovery, Oracle Real Application Cluster (RAC), OEM Cloud Control, Data Guard, upgrades, Exadata migrations, Autonomous Database, Oracle Cloud Infrastructure, and GoldenGate. Recognized for strong leadership capabilities and exceptional problem-solving skills, along with effective communication and a commitment to knowledge sharing. Proven ability to adapt swiftly to new environments while driving team success and delivering high-quality results.

The onsite projects delivered successfully during 12 years with Oracle Consulting Services

Google (NY Office): performance tuning

GE Oil and Gas: worked on GE E-Business Suite database tuning

CVS Pharmacy: database upgrade and migration

The State of Ohio: PSFT databases migration

Trinet: PSFT data masking and tuning

Nielsen: Active Data Guard configuration

Garmin: performance tuning

National Bank of Canada: GoldenGate replication

Alliance Bernstein: performance tuning

Standard Insurance: database configuration, upgrade and migration

Desjardins, Canada: Data Guard configuration and disaster recovery

PA Department of Transportation: Active Data Guard configuration

DynCorp: PSFT upgrade and migration

Atos: Data Guard configuration

Lee County Utilities: performance tuning

Bristol-Myers Squibb: performance tuning

Oakland County Sheriff Department: performance tuning

Federal Reserve Bank (Boston&New York office): performance tuning

Los Angeles County Assessor: ExaCC migration, performance tuning,

Department of Health and Human Services: PSFT upgrade

Allegis: OCI cloud migration

JLL: OCI cloud migration, Active Data Guard configuration

TRANE: EBS database migration to cloud

Bechtel: Database migration to cloud

Essilor: EBS database migration

• Oracle Certified Professional –Oracle 23ai Vector Search
• Oracle Certified Professional – Oracle 23ai Multicloud
• Oracle Certified Professional –Oracle Cloud Infrastructure 2019 Architect
• Oracle Certified Associate Oracle Cloud Infra 2020 Cloud Operations OCA
• Oracle Certified Specialist Oracle Cloud Infra 2020 HPC Big Data Solutions
• Oracle Certified ProfessionalOracle Cloud Infra 2020 Workloads OCA
• Oracle Certified AssociateOracle Cloud Infra 2020 Enterprise Workloads
• Oracle Certified Associate Oracle Cloud Infra Developer 2020 OCA
• Oracle Certified Specialist -Autonomous Database Cloud 2020 OCS
• Oracle Certified Specialist -Autonomous Database Cloud 2019 OCS
• Oracle Certified Associate -Database Cloud Service OPS OCA
• Oracle Certified ProfessionalDatabase Cloud Admin OCP
• Oracle Certified Professional Oracle Database 12c Administrator OCP
• Oracle Certified ExpertExadata X3 Admin OCE
• Oracle Certified Professional Database 11G Admin OCP
• Oracle Certified Professional Database 8i OCP
• Oracle Certified Associate Coud Infra 2018 OCA
• Oracle Certified Professional Database 8 Admin OCP
• Oracle Certified Associate -Oracle PLSQL Developer OCA
• Oracle Certified Professional Database 10g Admin OCP

• Federal Reserve Bank 3 years security clearance
• Department of Health and Human Services Level 6 clearance
• State of California/Ohio/Pennsylvania government clearance