Executive Assistant

About Us

Zethos is one of New Zealand’s leading cleantech companies. We have developed a platform technology for refining critical minerals from industrial wastes and ores with up to 50% lower cost and 95% lower carbon emissions than conventional processes. We are currently operating our demonstration plant in Bromley, Christchurch and actively developing a first commercial-scale facility. Our culture is driven and collaborative, and both our team and the scope of our work are growing quickly.

As the company grows, our executives are working across technology development, commercial projects, financing and international partnerships. We need someone who can keep the practical side of the business organised and make sure our people, offices and executives can operate effectively.

About the role

We are looking for an Executive Assistant to support our CEO & CTO and help keep Zethos running smoothly day to day.

You will manage calendars, travel, board and leadership administration, and a wide range of practical tasks that keep our executives organised and effective. You will also work closely with our Finance & Operations Manager to run non-technical operations at our Bromley site, making sure our spaces are functional, comfortable, and well-supplied. You will play a key role in preparing legal agreements and documentation, onboarding new employees, and running team events.

This is a broad role for someone who enjoys making things happen. We’re looking for someone who spots what needs doing and takes ownership to get it done. You will need to be comfortable learning quickly, working across different systems, and handling confidential information with care.

This is a full-time role based on-site in Bromley, Christchurch.

Key responsibilities

• Support our CEO and CTO including managing calendars, meetings and scheduling

• Coordinate domestic and international travel, accommodation and itineraries.

• Support board and leadership-team administration.

• Manage executive expenses and other day-to-day administration.

• Support office operations at Zethos’s two Christchurch sites, including access and security, coordinating offices supplies, cleaning, furnishing, and office events.

• IT administration and coordinating external IT support where required.

• Support legal processes and maintain organised company and contract records.

• Prepare and review legal documentation (NDAs, contractor agreements, filings).

• Coordinate onboarding and practical setup for new employees.

About you

• Highly organised, reliable and capable of managing multiple priorities at once.

• Proactive and resourceful, with a strong instinct to take ownership and deliver results

• High level of discretion and sound judgement when handling confidential information.

• Strong attention to detail.

• Confident using information technology and administering systems such as Microsoft 365, SharePoint, Teams.

• Comfortable working with contracts and legal or corporate documents.

• Clear and professional written and verbal communicator.

• Previous experience in executive assistance, office management, operations or a similar role is preferred, but we are open to candidates who can demonstrate exceptional capability and initiative.

What We Offer

• The opportunity to work in one of New Zealand's leading cleantech companies.

• The chance to contribute to work making an impact on global sustainability.

• Flexibility and support to maintain genuine work-life balance.

• Zethos's Employee Share Option Plan, giving you the opportunity to share in the value you create as the company grows.

If you are interested in the role but don’t have the exact experience we’re after, please still reach out. This is a broad and varied role, and we’d love to learn more about you and your unique skills.