Our senior team

Jo Mithen, Chief Executive Officer


  • Advanced Management Programme, INSEAD
  • Executive MBA, Melbourne Business School, The University of Melbourne
  • Bachelor of Laws (LL.B.), Monash University
  • Bachelor of Economics (B.Ec.), Monash University


  • Fellow, Australian Human Resources Institute
  • Member, Australian Institute of Company Directors

As a Monash University alumna, Jo is a proud advocate of the power of an excellent education and the opportunities it provides.

She joined Monash College in 2008 as Chief Executive Officer. Having worked at senior levels with universities for more than 15 years, her expertise lies in her ability to recognise market trends and affect change.

Under her leadership, the company has tripled student enrolments and strengthened the quality of graduates entering the University. She has also extended international College partners, invested to diversify College leadership succession and unified the College under a single vision.

Read Jo's extended profile

Nicola Harrison, Executive Director, Industry


  • BA (Hons), Archaeology

Nicola Harrison joined the College in 2021 to lead the Industry team. Her portfolio focuses on enabling Industry to both connect to early and graduate Monash University talent through employment and internships, and to supplement businesses internal capabilities through a range of Monash College designed and delivered accredited or professional learning options.

Nicola has supported large and complex organisations to define and build meaningful people strategies to attract, hire, retain, mobilise and develop critical capabilities. Nicola has focused on helping businesses create equitable and inclusive cultures through purposeful hiring practices, education and keeping a keen eye on the data. Nicola has led research into future work trends and partnered with a range of external organisations to support their strategic plans and future working models.

Nicola has diverse experience across the talent and people sector having held senior positions at RMIT, Australian Post, Kmart and Medibank. Nicola is also the Founder of Therefore Talent; a talent/ HR consulting firm whose clients range from large +5000 employees, through to startups.

Nicola is passionate about solving problems and enabling organisations by removing barriers and driving innovation and entrepreneurship. She is an advocate for early talent and supporting them to realise their ambition and embark on a meaningful career.

Brett Johnstone, Executive Director, Operations Support

Brett joined Monash College in 2019 as Chief Information Officer with a portfolio including technology and management consulting, telecommunications, health, mining, and legal. Brett has 34 years of experience in technology, management consulting, large scale operations and program delivery.

While at Rio Tinto, he led a team of 400 staff which managed technology operations across 12 countries which provided support to over 20,000 users.

Previous roles also include Maurice Blackburn lawyers, where he led the digital transformation of the organisation and the implementation of digital case management.

Brett is personally motivated by the opportunity to make a positive difference and contribution to the lives of all people and sees education as a great fit and alignment to these goals and values.

Roshana Nanayakkara, Chief Financial Officer/Company Secretary

Billie Mertens, Executive Officer/Assistant Company Secretary

Nicole Hebblewhite, Executive Director, People & Culture

Dr Karina Davis, Executive Director, Education


  • BECS (Hons), University of Melbourne
  • Ph.D. Education, University of Melbourne

Dr Karina Davis has a wealth of experience in the education sector drawn from over 25 years experience, originally as a teacher, then as a lecturer and researcher, before transitioning into educational management and executive management positions.  Karina believes deeply in the power of education to open opportunities and change a person's life trajectory.

Karina joined the College in 2020 to lead the Learning Innovation team. From August 2020, she has also taken on the leadership of the Bachelor of International Business. Karina brings to Monash College experience and expertise in strategy and its intersection with educational product and delivery and a curiosity and enthusiasm for education and strategy generally, and course and curriculum innovation specifically.

Read Karina's extended profile