About Us

At Mutinex, we’re not chasing unicorn status—we’re building a sustainable, long-lasting business (think Bowhead Whale). We're an early-stage B2B SaaS company with a proven platform, trusted by big-name clients, and already generating millions in revenue.

Our mission is bold: to build a universal business growth decision engine. Our platform empowers marketing, media, agency, analytics, and finance teams to organize, analyze, and action data at scale—unlocking and optimizing the true drivers of sustainable growth.

We’re a hybrid team spread across Sydney, Melbourne, and New York. We value open communication, diverse perspectives, and a culture of continuous learning and feedback.

The Role

This is a hybrid role - you will spend 60% of your time working as the CEO’s executive assistant. Precision, discretion, and adaptability are key to keeping priorities clear, momentum high, and the CEO focused on what matters most.

For the other 40% of your time, you'll be responsible for creating a well-organized, energizing, and functional environment where our team can do their best work.

This role is perfect for someone who’s proactive, highly organized, and thrives on making things better, cleaner, faster, and more fun.

We are in “scale up mode” : constantly growing and moving at a fast pace. This is a role which is at the heart of that growth, having visibility to senior leadership and business operations, you will be instrumental to the reliability of our business operations.

What You’ll Do

• Office Operations
  Ensure the office runs smoothly — managing supplies, vendors, maintenance, and space setup.
  Own landlord and service provider relationships.
  Keep the office tidy, stocked, and welcoming.

• Team & Culture
  Support onboarding, desk setups, IT access, passes, and team swag.
  Drive team culture through events, offsites, and celebrations.
  Collaborate with Chief of Staff and Head of Talent on team bonding.

• Executive Support
  Manage CEO’s calendar, meetings, deadlines, and business travel.
  Provide life admin support including personal scheduling, errands, and household coordination.

• Project Coordination
  Track ELT initiatives, deadlines, and cross-functional actions.
  Streamline business processes (e.g., reviews, policies, onboarding).

• Confidentiality
  Maintain discretion and professionalism with all sensitive information.

What We’re Looking For

There’s no perfect candidate. If you meet some of the criteria below and are excited about the role, we strongly encourage you to apply:

• 3+ years of experience working as an EA in a fast-paced, high-growth environment (startup or scale-up experience preferred)

• Exceptional organizational and communication skills - attention to detail is a must !

• Proactive mindset - you are always looking for a way to improve an existing process

• A growth mindset and openness to feedback

• Passion for solving complex problems and driving impact

• Comfort working in ambiguity and a fast-moving environment
  
  

We believe skills can be developed—so if you bring a unique perspective and are eager to learn, we’d love to hear from you.

Why Work With Us?

• Real Customer Impact: Your work directly shapes our platform and the success of our customers
  
  

• Challenging, Meaningful Work: Tackle complex data and infrastructure problems at scale
  
  

• Autonomy and Ownership: Drive initiatives end-to-end with support when you need it
  
  

• Learning and Growth: Collaborate with a thoughtful team of engineers and data scientists who love what they do
  
  

• Equity Ownership: All team members receive equity (ESOP)
  
  

• Parental Leave: 12 weeks paid leave for the primary carer, and 6 weeks for the secondary carer after 2 years
  
  

• Generous Time Off: 20 days of annual leave to start, plus 5 extra days after your first year, and 1 additional day each year after that (up to 30)
  
  

• Work from Anywhere: Take your laptop and work from anywhere in the world for up to 6 weeks each year
  
  

We’re Committed to Inclusion

Mutinex is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We welcome applicants of all backgrounds, experiences, identities, and abilities.

If you need adjustments or accommodations during the application process, just let us know, we’re happy to support you.

Ready to Join Us?

If this sounds like a place where you’d thrive, we’d love to hear from you. Send us your resume and a short note about why this role excites you—we care more about what drives you than perfect formatting.