IT Infrastructure Specialist

Recruiter:

Datafin IT Recruitment

Job Ref:

3303560359

Date posted:

Friday, January 23, 2026

Location:

Pretoria, South Africa

SUMMARY:
-

POSITION INFO:

ENVIRONMENT:

This role is for an experienced IT Infrastructure Specialist to join a medical technology team. The position is responsible for specifying, building, and maintaining the server infrastructure for a critical, Docker-based medical web application. The engineer will ensure robust, secure, and high-availability operations within the company’s own infrastructure, leveraging a diverse stack of open-source and enterprise technologies in a meaningful healthcare context.

Duties:

Specify, build, and maintain physical and virtual servers to host a Docker-based medical application stack.
Ensure system security, performance, and reliability across the entire infrastructure.
Manage and optimise PostgreSQL databases, ZFS storage systems, and Linux-based environments.
Automate deployment, configuration, and management tasks using Ansible.
Configure and maintain HAProxy for load balancing and Mikrotik routers for network management.
Administer and optimise the VM environment and manage connectivity to major internet exchanges (JINX, NAPAfrica).
Maintain and support telephony systems using Asterisk.
Implement and oversee monitoring, backup, and disaster recovery procedures.

Requirements

Minimum of 5+ years of hands-on experience in a DevOps, Infrastructure, Cloud, or Security Engineering role.
Must-have technical proficiency:
- Advanced Linux administration (Ubuntu focus)
- Scripting and automation with Bash
- Configuration management with Ansible
- Containerisation with Docker
Strong experience with:
- PostgreSQL database administration
- ZFS storage management
- Load balancing (HAProxy)
- Networking (Mikrotik routers)
- Telephony systems (Asterisk)
Proven ability to design, build, and secure on-premises infrastructure.
Excellent problem-solving skills and a proactive approach to system reliability.
Fluent proficiency in English.

Attributes

Innovative and collaborative team player with a passion for continuous learning.
Detail-oriented with a strong focus on security and system robustness.
Ability to thrive in a dynamic environment managing critical healthcare technology infrastructure.
Values working with open-source technologies and making a tangible impact in the medical field.

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