Senior Administrative Assistant

About the role

IREN is a vertically integrated AI Cloud provider, delivering large-scale data centers and GPU clusters for AI training and inference. IREN's platform is underpinned by its expansive portfolio of grid-connected land and power in renewable-rich regions across North America, Europe and APAC. We are seeking a proactive and highly organized Senior Administrative Assistant to support the Site & Construction Manager at our high-performance computing (HPC) data center campus. This role is ideal for a self-starter who thrives in a fast-paced, technical environment and takes pride in anticipating needs before they arise. The successful candidate will be detail-oriented, resourceful, and capable of managing a wide range of administrative and operational tasks with discretion and efficiency. While prior experience as an administrative assistant is preferred, we value initiative, adaptability, and a strong sense of ownership in supporting mission-critical operations. With 100% renewable energy, we build, own and operate our data centers and take pride in being at the forefront of sustainable solutions for the ever-evolving applications of high-performance compute. We believe that human progress is invaluable, but it should be done in the right way – responsibly, sustainably and having a positive impact on the communities we operate in.

Responsibilities

• Provide high-level administrative support to the Senior Operations Manager and other facility leaders.
• Manage calendars, schedule meetings, coordinate travel arrangements, and prepare meeting agendas and materials.
• Track and follow up on action items, deadlines, and project milestones.
• Assist with internal communications, documentation, and reporting.
• Maintain organized digital and physical filing systems, including confidential records.
• Support onboarding and coordination for new hires, vendors, and contractors.
• Order and manage office supplies, equipment, and facility logistics.
• Coordinate with IT, security, and facilities teams to ensure smooth day-to-day operations.
• Prepare and proofread correspondence, reports, and presentations.
• Assist with planning and execution of on-site events, audits, and executive visits.

Requirements

• Proven experience as an administrative assistant or in a similar support role (preferred).
• Exceptional organizational and time management skills.
• Strong written and verbal communication abilities.
• High level of discretion and professionalism when handling sensitive information.
• Proficiency in Microsoft Office Suite (Outlook, Word, Excel, PowerPoint) and collaboration tools (e.g., Teams, SharePoint).
• Ability to work independently, prioritize tasks, and adapt to changing priorities.
• Familiarity with technical or data center environments is a plus.
• Self-motivated with a proactive mindset.
• Comfortable working in a high-security, high-performance environment.
• Strong attention to detail and follow-through.
• Collaborative and service-oriented attitude.
• Must provide own steel-toed work boots; other PPE will be supplied.
• Must be able to reliably commute to the work site as needed or have plans to relocate before starting work.

Benefits

• 100% company paid health insurance premiums (medical, dental, and vision) for employees, 75% company paid coverage for dependents.
• Company-paid short-term and long-term disability insurance.
• Voluntary life, critical illness, and accident coverage available.
• Health Savings Accounts (HSA) – when combined with the High-Deductible Health Plan.
• Employee Assistance Program and wellness resources.
• 401(k) retirement plan with company match.
• Paid professional development and access to financial planning and legal services.
• Paid Time Off (PTO) and paid holidays.
• Professional development to support certifications, continuing education, or role related training.
• Company events and team-building activities.

We value diverse perspectives and believe that skills can be developed. If you're passionate about this role, we want to hear from you — whether you meet every criteria or not. Your unique experiences might be exactly what we need!