Gemstone DevOps Engineer ( Contractor) MMH261008-2

Momentum; Centurion; On-site; ZAR 600,000 - 900,000; Full time

Job summary

Momentum is seeking an experienced Linux Systems Administrator to manage GemStone/S environments and Linux infrastructure across development, test, prelive, and production stages.

You will work closely with application and infrastructure teams to ensure security, performance, and high availability, while driving automation via Jenkins, Ansible, and related tooling.

Qualifications

• Diploma or Degree in Information Technology, Computer Science, Engineering, or a related field.
• Linux certifications advantageous.
• 5+ years Linux systems administration experience.
• 2+ years supporting enterprise application platforms.
• Experience administering mission-critical production environments.
• Experience supporting GemStone/S environments is highly advantageous.

Responsibilities

• Configure, and maintain Linux operating systems across development, test, prelive, and production environments.
• Coordinate OS upgrades, patching, and security updates with I&O and other stakeholders.
• Manage user accounts, permissions, groups, and access controls.
• Monitor and maintain storage, file systems, network services, and system services.
• Troubleshoot server, operating system, and infrastructure issues.
• Monitor and maintain GemStone/S environments and processes.
• Monitor deployment pipelines and assist development teams with performance analysis.
• Implement proactive monitoring and alerting with DataDog and other tools.
• Enforce Linux security standards, manage SSH access, certificates, firewall configurations, and remediation.
• Develop, maintain, and test backup/recovery procedures and runbooks.
• Maintain and enhance automation scripts (Jenkins, Ansible); support CI/CD processes.

Skills

Linux administration

Incident response

Cross-team collaboration

Education

Diploma or Degree in IT/CS/Engineering

Tools

Jenkins

Ansible

Terragrunt

Git

DataDog

Bash scripting

Job description

Role Purpose

The Linux/Windows Systems Administrator is responsible for the installation, configuration, administration, monitoring, maintenance, and optimisation of Linux servers hosting GemStone/S application environments. The role ensures the stability, security, performance, and availability of production, test, and development systems while working closely with application development teams, infrastructure teams. This is the primary DevOps role for the Gemstone/s environment.

Requirements

• Diploma or Degree in Information Technology, Computer Science, Engineering, or a related field.
• Relevant Linux certifications will be advantageous.
• 5+ years of Linux systems administration experience.
• 2+ years supporting enterprise application platforms.
• Experience administering mission-critical production environments.
• Experience supporting GemStone/S environments is highly advantageous.

Duties and Responsibilities

Linux Server Administration

• Configure, and maintain Linux operating systems across development, test, prelive, and production environments.
• Coordinate operating system upgrades, patching, and security updates with I&O and other stakeholders.
• Manage user accounts, permissions, groups, and access controls.
• Monitor and maintain storage, file systems, network services, and system services.
• Troubleshoot server, operating system, and infrastructure issues.

GemStone/S Administration

• Monitor and maintain GemStone/S environments.
• Configure and upgrade GemStone/S environments with senior devs.
• Monitor GemStone processes (stone, netldi, gem, and repository).
• Monitor user and bulk processes.
• Monitor GemStone backups, replication and recovery procedures.
• Monitor repository integrity checks and report repository-related issues.

Deploy Pipeline

• Monitor deployment pipelines and respond to issues.
• Support application deployments and environment configuration changes (Jenkins, git, Ansible, OS Scripts).
• Assist development teams with performance analysis and troubleshooting.

Monitoring and Performance Management

• Monitor server health, application availability, disk usage, memory utilisation, and system performance.
• Implement proactive monitoring and alerting mechanisms.
• Enhance observability by integrating with organisation tools (DataDog)

Security and Compliance

• Enforce Linux security standards and best practices.
• Manage SSH access, certificates, firewall configurations, and vulnerability remediation.
• Ensure compliance with company security policies and audit requirements.
• Participate in security reviews and incident response activities.

Backup, Recovery and Business Continuity

• Monitor daily restore procedures.
• Develop, maintain, and test backup and recovery procedures.
• Perform regular disaster recovery validation exercises.
• Ensure recovery time and recovery point objectives are met.
• Maintain documentation of recovery procedures.

Automation and DevOps Support

• Maintain and enhance automation scripts for administration and operational tasks (Jenkins and Ansible).
• Support CI/CD processes and deployment automation (Jenkins, Ansible, terragrunt and bat/bash).
• Implement configuration management and infrastructure-as-code practices where applicable.
• Improve operational efficiency through automation.

Documentation

• Maintain accurate technical documentation for systems, configurations, procedures, and support activities.
• Create and update operational runbooks and troubleshooting guides.
• Document architecture changes and system dependencies.

Support and Incident Management

• Support the investigation of production incidents.
• Conduct root cause analysis and implement preventative measures.
• Work with internal teams to resolve complex issues.

AI

• Use approved AI-assisted tools to enhance coding, testing, troubleshooting, and documentation activities.
• Validate and apply appropriate governance to AI-generated outputs, ensuring quality, security, and compliance requirements are met.