Roland Ngwa
- Role
- Database Administrator AVP at Citi
- Location
- Dallas, TX, US
- LinkedIn followers
- 500 followers
About Roland Ngwa
I’m an accomplished database administrator with a track record of success in multi-TB…
Experience
Database Administrator AVP
Aug 2019 — Present · Irving, TX, US
Administer PostgreSQL DBs through automation scripts and patches, revise config files. Standardize and audit database access. Partner with storage teams for capacity management. Maintain tablespaces, data files, various logs, and logical database objects. Perform failover/failback testing. Develop stored procedures, triggers, packages, etc. in PL/SQL. Handle backups, refreshes, and server migrations. Resolve Oracle RAC issues by using Clusterware and analyzing database logs. Create RMAN recovery catalogs. Execute performance tuning with AWR, ASH, SQL Trace, TKPROF, etc. • Spearheaded the upgrades of PostgreSQL servers from 9.6 to 14 as well as Oracle RAC and standalone databases from 11g to 19c. • Hands-on experience with tuning PostgreSQL for performance, security, and scalability.
Education
University of Buea
Bachelor's degree, Computer Science, Second Class Upper Division
2009 — 2012
Institute of Commercial Management Britain
Diploma, Human Resource Development
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