Senior Database Administrator: Performance, Security & HA

Gijima Holdings Hr; Pretoria; On-site; ZAR 850,000 - 1,200,000; Full time

Job summary

Gijima Holdings Hr is seeking a Specialist: Database Administration to lead the planning, development, and troubleshooting of enterprise databases. The role covers backups, monitoring, performance tuning, and high availability strategies while collaborating with application teams.

Qualifications include a CS-related degree and enterprise DB certifications, with 6+ years’ experience across IBM DB2, Oracle, Linux and data warehousing. National travel and after-hours work are expected.

Qualifications

• Diploma/Bachelor’s degree in Computer Science or related field.
• Certification on enterprise database products (IBM, Oracle, DB2, Redis, MongoDB, CouchDB, Cassandra, Ingres).
• 6+ years of experience developing data management systems and architectures using IBM DB2, Oracle, Redshift or similar.
• Experience with big data tech such as Hadoop/EMR and databases like DynamoDB, MongoDB, Redis, Cassandra.
• Experience designing and operating large Data Warehouses and web-facing OLTP databases.
• Proficiency in IBM Server, DB2, Oracle, Linux and programming languages such as R, Python, Java or Ruby.

Responsibilities

• Ensure all database servers are backed up to meet RPO objectives.
• Test backups to meet RTO objectives.
• Troubleshoot database server outages, including after-hours.
• Configure monitoring to minimize false alarms.
• Choose clustering, log shipping, or mirroring for new systems.
• Install and configure new database servers.
• Deploy change scripts from vendors.
• Tune performance and hardware configurations to improve performance.
• Document the database environment and data models.
• Travel nationally and work after hours as required.

Skills

Database technologies

APIs to WebApps

Communication skills

Project management

Analytical thinking

Team collaboration

On-call support

Education

Bachelor's/Diploma in CS or related

Enterprise DB certification

Tools

IBM DB2

Oracle

Linux

Python

Java

R

Job description

Gijima Holdings Hr is seeking a Specialist: Database Administration to lead the planning, development, and troubleshooting of enterprise databases. The role covers backups, monitoring, performance tuning, and high availability strategies while collaborating with application teams.

Qualifications include a CS-related degree and enterprise DB certifications, with 6+ years’ experience across IBM DB2, Oracle, Linux and data warehousing. National travel and after-hours work are expected.