Senior SQL & Postgres DBA | HA/DR, Automation

Samaha Consulting; Johannesburg; On-site; ZAR 900,000 - 1,300,000; Full time

Job summary

Samaha Consulting is seeking an experienced SQL Server DBA with Postgres SQL knowledge for 12-month fixed-term roles in Pretoria and Durban. Office-based positions require engagement across enterprise-scale database estates with strong HA/DR, performance tuning, and compliance focus.

Role emphasizes automation, incident response, mentorship of junior DBAs, and collaboration with cloud adoption initiatives while maintaining robust security and governance across the data platforms.

Qualifications

• 8 to 10+ years of experience in database administration
• Expertise in high availability, disaster recovery, and replication technologies
• Strong troubleshooting and performance tuning using execution plans and profiling tools

Responsibilities

• Design, implement, and maintain high availability and disaster recovery solutions (e.g. clustering, availability groups, replication frameworks)
• Develop and manage complex data movement and replication architectures across large database estates
• Monitor database environments and proactively address performance, stability, and reliability issues
• Perform advanced performance tuning using execution plans, wait statistics, and profiling tools
• Investigate incidents, conduct root cause analysis, and implement remediation strategies
• Drive database automation initiatives using scripting and self-service tooling
• Support infrastructure modernisation projects, including cloud adoption and optimisation
• Ensure database security, compliance, and governance through controls such as encryption, auditing, and access management
• Create and maintain technical documentation, runbooks, and operational standards
• Provide technical mentorship and guidance to junior database administrators
• Participate in critical incident response and provide after-hours support when required

Skills

SQL Server

Postgres SQL

High availability

Performance tuning

Automation/Scripting

Cloud platforms

Security governance

Incident management

Communication

Mentorship

Education

Bachelor's degree in IT/CS

Tools

PowerShell

Python

Bash

ClickHouse

Job description

Samaha Consulting is seeking an experienced SQL Server DBA with Postgres SQL knowledge for 12-month fixed-term roles in Pretoria and Durban. Office-based positions require engagement across enterprise-scale database estates with strong HA/DR, performance tuning, and compliance focus.

Role emphasizes automation, incident response, mentorship of junior DBAs, and collaboration with cloud adoption initiatives while maintaining robust security and governance across the data platforms.