Description Reporting to the Principal – IT Infrastructure Lead, the Senior Systems Administrator is a senior technical role where you will design, deliver and continuously improve the systems that keep Harmony’s operations running across corporate teams and mining sites. You will work on meaningful infrastructure projects, solve complex problems end-to-end, and partner with stakeholders to build reliable, secure platforms that support our teams across Australasia. Roster: Full-time roster of 5 days on / 2 days off (Monday to Friday) based at our Milton office Flexible working arrangements, including up to 2 days per week working from home This role will include occasional Domestic and international travel across our sites in Australasia Responsibilities Provide level 3 support across corporate and mine site IT environments. Deliver infrastructure projects, including new builds and upgrades. Engineer and maintain Windows/Linux servers across Azure, Hyper-V, and Nutanix. Monitor and analyse performance, capacity, and security events. Resolve, document and lead response to incidents, outages, and degraded services. Maintain clear documentation and current records in service desk and project tools. Contribute to stand-ups, retrospectives, and project meetings. Provide technical and architectural input, owning key backend capabilities across the hosting platform, security, DR/BC, and operational standards. Partner with vendors to implement and support third-party solutions. Translate technical issues and options for non-technical stakeholders. Mentor team members and function as the final escalation point. Safey Skills and Responsibilities: Accept responsibility for correcting unsafe acts and conditions. Safe manual handling techniques Incident investigation knowledge Hazard identification, reporting, and remedy Application of company procedures Knowledge and understanding of local mining regulations, OH&S and Duty of Care PPE awareness and use Attend and contribute at safety meetings. Understanding of statutory requirements. Qualifications At least 5 years’ experience recent in a similar role Relevant experience on Windows and Linux server and desktop operating systems Strong literacy skills, particularly in IT system documentation. Understanding of Network, Wireless and Security technologies Experience and/or qualifications with the following technologies: Hyper-V Nutanix Veeam SQL Solarwinds Orion Dell server hardware Active Directory and Entra Azure compute and networking Exchange On-prem, M365 and Mimecast email systems OT systems Experience working with PNG or third world communities. List any licenses or certifications: e.g. MCTS, MCSE, MCSA, ITIL, MCITP, RHCT, MSCA, Nutanix, etc. About You: You are smart, organised and calm under pressure. Someone who enjoys taking ownership, keeping stakeholders informed, and making technical environments simpler, safer, and more resilient. You communicate clearly with both technical and non-technical audiences, and you are excited by the chance to occasionally visit our mine sites and work in unique locations alongside operational teams. Why you will love this role: Interesting work with real-world impact supporting critical operations across multiple sites. Variety and autonomy: a mix of project delivery, continuous improvement, and high-level troubleshooting. Occasional travel to regional QLD, NSW, and PNG - see the results firsthand on the ground. Flexible working: Milton office with two work-from-home days per week. A supportive team environment where documentation, process and safety are taken seriously. What are the benefits of working for Harmony? Corporate/discounted Medibank rates and access to Harmony’s rewards and discounts program. Opportunity to work with an international mining organisation with a diverse workforce. Enjoy flexible working practices in our Brisbane office, supporting work-life balance. Be part of a dynamic, cross-cultural setting, contributing significantly to our company’s success. Join a company that values its employees and recognises their contribution. Convenient Milton location, a short walk from public transport. If you believe you have the skills, knowledge, and experience to fulfil this role, please submit your application online. Please include a Cover Letter which outlines how your skills and experience align with this role. Salary will be negotiated commensurate with experience. To learn more about Harmony, please visit our website www.harmony.co.za Please note: All candidates must have the right to live and work in Australia to be considered for this role. We thank all applicants for your interest and the time taken to submit your application. While we consider all suitable applicants, only those short-listed for screening will be contacted. The successful candidate will be required to undertake an office-based pre-employment medical screen, including drug and alcohol testing.
