DevOps/System Administrators

Company : Sabenza It

Job Type : Full Time

Johannesburg, South Africa

Job Description - DevOps/System Administrators

Role Overview

We are seeking experienced DevOps / System Administrators to support enterprise infrastructure, application server environments, and CI/CD pipelines within a fast -paced, production -critical environment. The role focuses on Linux administration, JBoss management, infrastructure automation, and deployment orchestration using modern DevOps tooling.

Key Responsibilities

Infrastructure Management

Perform advanced Linux system administration (RHEL/CentOS/Ubuntu or equivalent enterprise distributions)
Install, configure, and maintain JBoss / WildFly application servers
Perform JBoss tuning and performance optimisation
Monitor server health, troubleshoot incidents, and ensure high availability of systems
Manage patching, upgrades, and system security hardening
Support production environments with incident and problem resolution

Automation & Configuration Management

Implement infrastructure automation using Chef
Develop and maintain Chef cookbooks and recipes
Ensure consistent configuration across development, testing, and production environments
Drive infrastructure standardisation and reduce manual operational effort

CI/CD Pipeline Management

Build and maintain CI/CD pipelines using Atlassian Bamboo
Manage source control and branching strategies using Bitbucket (Git -based workflows)
Automate build, test, and deployment processes across multiple environments
Support release management and deployment activities
Improve deployment reliability through automation and pipeline optimisation

Requirements

Technical Requirements

Strong experience in Linux administration (enterprise environments)
Hands -on experience with JBoss / WildFly administration and tuning
Proven expertise in Chef configuration management
Strong working knowledge of Bamboo CI/CD pipelines
Experience with Bitbucket / Git version control systems
Scripting experience (Bash / Shell / Python advantageous)
Understanding of system monitoring, logging, and alerting tools
Knowledge of networking, security, and infrastructure best practices

Key Competencies

Strong troubleshooting and analytical skills
Ability to work under pressure in production environments
High attention to detail and operational discipline
Strong collaboration with development, QA, and infrastructure teams
Proactive approach to automation and continuous improvement
Good documentation and communication skills

Preferred Experience

Experience in enterprise -scale or financial services environments
Exposure to cloud platforms (AWS / Azure / GCP advantageous)
Experience supporting microservices -based architectures
Strong production support and release engineering background

Deliverables / Expected Outcomes

Stable, secure, and optimised Linux and JBoss environments
Automated infrastructure provisioning and configuration management
Reliable and efficient CI/CD pipelines
Reduced deployment failures and faster release cycles
Improved system observability and incident response performance

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