Senior Leadership Team

Find out more about the IB Senior Leadership Team (SLT).

Ali Ayub – Chief Digital Officer

Ali Ayub

Ali joined the IB in July of 2017 and is based out of the IB Global Centre, Washington DC. He has over 25 years of experience in the information technology industry with 15 years of experience as senior executive focused on supporting and growing multiple lines of business. Ali has extensive experience with technology, service providers, cloud, private equity and the financial services industry. He has worked for IBM, Alliance Data Systems, SoftLayer, Nationstar and Caliber Home Loans. Ali holds a Bachelor's in Computer Science from Minnesota State University.

As Chief Digital Officer, Ali leads a team of over 100 people across all IB Global Centers internationally, covering Core Digital Applications, Enterprise Architecture, DevOps, Infrastructure and Operations, Project Management Office, Information Security and Risk.

Alongside a personal passion for digital innovation, a subject on which Ali has published a range of publications and books, he also takes a keen interest in cricket and tennis.

Thaimur Changezi – Chief Financial and Business Officer

Thaimur Changezi

Thaimur joined the IB in June of 2016 as Director of Finance and Procurement in the IB Global Centre in Singapore. He has over 21 years of experience in finance, and brings a wealth of knowledge to his role at the IB. Thaimur has worked in the private sector in the Middle East, Europe, the US, and Asia Pacific, in areas ranging from business development and manufacturing to oil and gas. He holds a Bachelor's and Master's degree in Finance.

As Chief Financial and Business Officer, Thaimur heads a team of over 80 people spread throughout IB Global Centres all over the world, covering Commercial Publishing, Enterprise Planning, Finance, Facilities, Risk and Travel.

Sally Holloway – Deputy Director General

Sally Holloway

Sally Holloway joined the IB in August 2019 as Deputy Director General and is based out of the IB Global Centre in Cardiff. She has almost 30 years of experience working in international education and 21 years as Head of an IB continuum school. As an IB Head, she served on the IB Asia Pacific Regional Council as well as the Heads Council, the latter of which she Chaired in 2009-10. She was a member of the IB Board of Governors from 2011-17.

Sally is looking forward to bringing her extensive experience to her new role and the IB’s “School’s First” and “Student Centred” strategy.

Sally has a degree in education and a master’s degree in International Education from Oxford Brookes University.

Dr Rebecca Hughes – Chief Officer of Learning and Teaching

Dr Rebecca Hughes joined the IB in December 2017 as Chief Officer of Learning and Teaching. Rebecca is a published academic and an expert in Applied Linguistics and English Language Teaching. She spent the past 25 years researching students’ needs and developing international education programmes at Nottingham and Sheffield Universities, and - most recently - at the British Council. There, she was Global Director of Education, heading a team focused on internationalizing education, creating high level partnerships, and sharing the UK’s expertise and innovation globally. Her team supported Ministerial level bilateral agreements, developed curriculum resources and opened up opportunities for international collaboration and professional development to support improvements in teaching and learning.

Rebecca helped set up the national #weareinternational campaign in support of international students in the UK, was the sector lead for the Erasmus Plus National Agency and the UK’s ‘Education is GREAT’ campaign, and has held advisory roles with the OECD, Swedish Foundation for Research in Internationalisation of Higher Education (STINT), Danish Ministry of Foreign Affairs, and was Co-Chair of the UK’s Department for Education’s International Education Advisory Working Group. Dr Hughes holds an Honorary Chair as Professor of Applied Linguistics and International Education at the University of Nottingham. She holds a bachelor's and a doctorate degree from Oxford University.

Paula Wilcock – Chief Assessment Officer

Paula Wilcock is the IB's Chief Assessment Officer, providing overall functional leadership and direction for the Assessment Division.

She brings over 20 years of experience to her new role including positions in school, college and professional and awarding body organizations. She has international experience through assignments in the Middle East, South Africa, Southeast Asia and Europe.

Paula has an MBA in Educational Management and is a chartered member of the Chartered Institute of Personnel and Development.