Senior Systems Administrator

Summary

Join Avetta's dynamic IT team in Australia as a Principal Systems Administrator. Lead a team of DevOps engineers, manage Linux-based hosting environments, and optimize network systems using Cisco and Dell technologies. Collaborate on agile projects, support databases (MySQL, PostgreSQL), and applications (.NET Core, Java). Oversee cloud environments (AWS, Azure, VMware, OpenStack) and implement automation (Puppet, Terraform, Ansible). Maintain system security and reliability, ensuring 99.99% uptime. This hybrid role offers a flexible work schedule with office locations in Newcastle and Sydney.

Requirements

• Education & Experience: Bachelor’s or higher in Computer Science, Information Technology, or a related field with 10+ years in System Administration focused on Linux and open-source environments, and 5+ years leading teams
• Network Mastery: Deep knowledge of network architecture and firewall management, especially with Cisco and Dell technologies
• Kubernetes Proficiency: Skilled in managing Kubernetes environments and supporting Java and .NET Core applications
• Database & Cloud Expertise: Experience in MySQL and PostgreSQL database management, plus scalable cloud solutions using AWS, Azure, VMware vSphere, and OpenStack
• Analytical & Problem-Solving Skills: Strong troubleshooting abilities to resolve complex system issues quickly and effectively
• People & Communication Skills: Proven ability to lead, mentor, and communicate across cross-functional teams
• Work Schedule Flexibility: Ability to work on a hybrid schedule, with 2 days in the office at our Newcastle location (426 King Street, Newcastle, NSW 2302) or Sydney location (Level 45, 680 George Street, Sydney, NSW 2000)

Responsibilities

• Lead Infrastructure Management: Design, implement, and manage our Linux-based hosting environment, including Kubernetes and other open-source products
• Optimize Network Systems: Configure and maintain network systems with Cisco, Dell, and other hardware to ensure robust connectivity and security
• Collaborate on DevOps and Scrum Projects: Partner closely with DevOps engineers to support agile workflows and infrastructure alignment with business goals
• Database and Application Support: Manage and fine-tune MySQL and PostgreSQL databases, and support Java and .NET Core application deployments
• Enhance Cloud and Container Systems: Oversee Docker containers within Kubernetes and manage cloud environments on AWS, Azure, VMware vSphere, and OpenStack
• Drive Automation and CI/CD: Implement Infrastructure as Code (IaC) tools like Puppet, Terraform, and Ansible, and use CI/CD platforms such as Jenkins and Spinnaker
• Monitor and Secure Systems: Leverage tools like New Relic for monitoring and apply security standards to safeguard our infrastructure
• Ensure Uptime and Reliability: Support 24/7 monitoring and troubleshoot production issues to maintain 99.99% platform uptime for a global audience
• Mentor and Lead a Talented Team: Guide and support a team of system administrators and Systems Administrators, sharing your expertise and fostering growth

Preferred Qualifications

• Certifications in Linux, Cisco (CCNA, CCNP), or VMware
• Familiarity with Agile/Scrum methodologies
• Knowledge of scripting languages like Python or Bash