Database Administrator

1 week ago

Johannesburg, South Africa TransUnion Full time

TransUnion's Job Applicant Privacy Notice

**What We'll Bring**:
At TransUnion, we strive to build an environment where our associates are in the driver’s seat of their professional development, while having access to help along the way. We encourage everyone to pursue passions and take ownership of their careers. With the support of colleagues and mentors, our associates are given the tools needed to get where they want to go. Regardless of job titles, our associates have the opportunity to learn new things and be a leader every day.
Come be a part of our team - you’ll work with great people, pioneering products and cutting-edge technology.
We’re looking for a talented and proactive Data Base Administrator Developer to join our growing engineering team.

**What You'll Bring**:

- 3+ years of hands-on experience as a MySQL DBA, with deep expertise in:

- Database architecture, query optimization, and transaction/locking mechanisms.
- Storage engines (InnoDB, MyISAM) and replication (GTID, binlog).
- Proven experience with AWS RDS, including:

- Configuration of parameter groups, Multi-AZ deployments, and Performance Insights.
- Backup/Restore (snapshots, PITR) and cross-region replication.
- Scalability expertise:

- Designing sharding, partitioning, and read/write splitting for high-traffic systems.
- Familiarity with sharding tools (e.g., Vitess, ShardingSphere) is a plus.
- Security & Compliance:

- Implementing TLS encryption, IAM-based access control, and data masking.
- Monitoring & Automation:

- Tools: CloudWatch, Prometheus/Grafana, Percona PMM.
- Scripting skills (Python/Shell) for automation.
- Nice-to-Have:

- Experience with Redis, DynamoDB, or other NoSQL solutions.
- Knowledge of Aurora or data warehousing (Redshift).

**Impact You'll Make**:

- Perform day-to-day MySQL database administration (deployment, monitoring, backup/restore, performance tuning) on AWS RDS.
- Design and implement high-availability architectures (master-slave replication, failover) and sharding strategies for large-scale datasets.
- Optimize AWS RDS resource allocation (instance types, storage, IOPS) to balance performance and cost efficiency.
- Develop and enforce database security policies (access control, encryption, compliance with GDPR/HIPAA).
- Lead disaster recovery (DR) planning, including RTO/RPO definitions and regular drills.
- Collaborate with developers to review SQL queries, schema designs, and resolve performance bottlenecks.
- Automate routine tasks (backups, scaling) using AWS Lambda, Terraform, or scripting (Bash/Python).

Please note it is a requirement of the Global Capability Centre Africa that you reside in a home that is fibre ready; and has space for you to be able to work comfortably and confidentially on a day-to-day basis for the purpose of your proposed employment. You can be based anywhere in South Africa that has fibre but will not be able to work in a location outside of South Africa.

A Minimum of a 100 Meg Fibre line is required, should you be successful, you will need to upgrade your line or install fibre in order to work effectively.

Please note that being a credit bureau, some positions require a clear credit record.

This is a remote position which may require occasional in-person attendance at work-related events at the discretion of management.

TransUnion Job Title

Assoc Developer, Database Administration and Storage

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