Our Leadership Team

Tim Costello, Chief Advocate

Tim Costello joined World Vision Australia in 2004. He served as CEO from 2004-2016. He now serves as Chief Advocate, a role in which he continues to engage World Vision supporters and be instrumental in ensuring that the issues surrounding global poverty are firmly placed on the national agenda.

Tim is one of Australia’s most sought-after voices on social justice issues, leadership and ethics, having spearheaded public debates on gambling, urban poverty, homelessness, reconciliation and substance abuse. He has been instrumental in ensuring that the issues surrounding global poverty are on the national agenda.

Prior to joining World Vision Australia Tim served as Minister at the Collins Street Baptist Church in Melbourne and as Executive Director of Urban Seed, a Christian not-for-profit outreach service for the urban poor. Between 1999 and 2002 he was also National President of the Baptist Union of Australia. After ordination as a Baptist Minister in 1984, Tim established a vibrant and socially active ministry at St Kilda Baptist Church between 1986 and 1994. In 1993, he was elected Mayor of St Kilda.

In 2004, Tim was named Victorian of the Year; in June 2005 he was made an Officer of the Order of Australia (AO); and in 2006 he was named Victoria’s Australian of the Year.

Tim currently serves as Chair on the Community Council of Australia, the Australian Churches Gambling Taskforce and National Australia Bank’s Social Responsibility Advisory Council. He has also served on numerous boards and committees, including the Alcohol Education and Research Foundation, the Australian National Development Index, Business for Millennium Development, the Australian Council for International Development and as co-chair of Make Poverty History. Tim was a delegate to the 1998 Constitutional Convention and chaired the Communities and Families stream at the Australia 2020 summit held in 2008.

Jill Roche, Chief Corporate Affairs

Jill Roche is a strategic influencer who values networks. She is energised by leading programs tied directly to business strategy that deliver authentic communication for positive change. 

Jill brings extensive experience spanning not-for-profit organisations, management consulting, information technology, and banking and financial services to the Chief Corporate Affairs role. Jill oversees the Corporate Affairs function, leading and developing governance, advocacy, internal and external communications, and support for World Vision’s brand and culture.

Prior to this appointment in 2017, Jill worked as World Vision’s Global Director of Partnership Communications, Director of Transformational Change and Director of Internal Communications. She joined the organisation in 2009.

Interested in learning from others and sharing experiences as a woman and as a leader navigating a fast-evolving workplace, Jill is a sought-after speaker on the topics of influence, communication and change.

Tracey Bannan, Chief Financial Officer 

Tracey Bannan is an experienced senior executive with expertise in risk management, financial management, developing and managing people, and client relations. 

Tracey has extensive experience in the professional services industry, with a focus on private businesses, high net worth individuals and the mid-market. This experience includes the not-for-profit sector, operating across disciplines including consulting, risk services and audit. As Chief Financial Officer, Tracey oversees financial strategies, reporting, budgeting, business planning, legal and risk management activities to achieve the organisation's goals. 

Tracey brings to the role management and governance skills gained at organisations including Deloitte, Carinya Society and the Victorian Aboriginal Childcare Agency. She is a Fellow of the Chartered Accountants of Australia and New Zealand and has three times been a Victorian Finalist in the Deloitte Businesswoman of the Year awards.

Teresa Sperti, Chief Marketing & Product Officer 

Teresa Sperti is a leading commercial senior marketer with over 18 years of experience working with an array of brands including Officeworks and Coles. Teresa’s leadership in the digital, product and customer space has delivered substantial revenue growth for organisations and enhanced the customer experience. 

A true champion of the customer, Teresa is passionate about leveraging digital and data to create deeper connections with customers, personalise experiences and deliver commercial outcomes. She has proven expertise as a digital change agent having successfully led digital and data transformation for several organisations during her career and advocates agile and lean marketing practices that allow brands to adapt to a rapidly evolving marketplace. 

Teresa holds a Masters in Marketing from Swinburne University and has won digital awards such as Best Mobile Marketing Campaign, establishing herself as an expert in this field. She joined World Vision Australia in 2017.

Nathan Callaghan, Chief People & Culture (Acting)

After a career in recruitment consulting and a brief stint in marketing, Nathan decided to work in a purpose-driven organisation where his skills and passion for working with people to enable them to achieve their goals could be leveraged for greater impact. Joining World Vision in 2006 as a Recruitment Advisor, Nathan has enjoyed a career that has seen him contribute to the organisation through leadership roles in People and Culture, Shared Services, and Strategy and Innovation. 

As Acting Chief People & Culture, Nathan leads a passionate team focused on continuing to make World Vision a great place to work through the functions of business partnerships, talent and performance, HR operations and faith and development. This work involves ensuring World Vision’s people are supported through all aspects of People and Culture's function to achieve their potential and deliver outcomes that have the greatest impact on eliminating poverty and its causes. 

Nathan is driven by the challenge of unlocking the potential of the organisation through its people. He draws inspiration from the amazing things that are achieved when people bring diverse perspectives, focus on a goal and work together to get the best possible outcome.

Janine Kewming, Chief Private Funding

Janine is a strategically minded professional who takes pride in engaging people in the vision and direction of World Vision Australia. She provides leadership and strategic direction for the team focused on our corporate and philanthropic supporters, with the intent of securing relationships and funds for the organisation.

Janine came to World Vision in 2015 with 20 years’ experience in various senior leadership roles across Australia’s corporate and not-for-profit sectors. Janine’s most recent experience prior to joining World Vision was in directorial roles in organisations such as the Lighthouse Foundation and Pro Bono Australia.

She uses her strong commercial acumen and ability to build a high-performing team culture to optimise outcomes and achieve greater results for the organisation.

Pam Rebecca, Chief Strategy, Innovation & Digital

Pam is a tech-savvy leader with experience in all aspects of digital transformation including strategy, e-commerce, digital marketing and agile delivery culture and capability. 

The role of Chief Strategy, Innovation & Digital sees her applying her skills across diverse and complex aspects of World Vision Australia’s operations.

Her highly adaptable approach to leading teams has driven success in transformational change across three ANZ businesses, while growing business by more than 100 percent, and building scalable digital platforms to underpin growth.

Natalie Hannemann, Chief Retail & Supporter Experience

Natalie Hannemann is an engaging leader in the field of multichannel operations. She has a strategic approach that allows her to challenge customer-centric environments to deliver results. Natalie’s experience in multichannel roles within Bupa Australia and Bupa Arabia has seen her reach millions of customers, improving their engagement with organisations. 

Natalie joined World Vision Australia in 2014. In her current role as Chief Retail & Supporter Experience, Natalie is accountable for leadership of Multichannel Supporter Operations – including retail fundraising and our national Contact Centre – and strategic planning to engage supporters more deeply in our field work. In 2017-2018, she also led a highly complex, cross-functional and global Supporter Transition Program to re-connect supporters with World Vision’s key products. 

Natalie was awarded the National Contact Centre Manager of the Year award, establishing her as a reputable and motivated leader. 

Simon Kilner, Chief Technology Officer

Simon Kilner brings the experience, vision and humanitarian commitment needed to navigate the fast-changing technology landscape in the NGO sector. Simon is a values-driven leader who has directed significant IT transformations for large commercial organisations. He has deep IT experience across strategy, architecture, infrastructure, applications, business engagement and vendor management.

Prior to joining World Vision, Simon delivered major infrastructure transformation projects at Baptcare, including disaster recovery in the cloud, mobility and desktop refresh, and network and security refresh. He transformed and consolidated five major retail divisions into a common technology platform while IT General Manager for the PAS Fashion Group, and cut his teeth in the industry as Head of IT at Clicks, a wholesale and retail pharmaceutical company in South Africa.

Simon is responsible for delivering digital and ICT capabilities. He facilitates effective links between the business strategy, revenue-focused teams, field work, risk management and finance, to align and strengthen World Vision’s capacity to maximise returns from IT investments and improve operational effectiveness.

Simon sees his role as key to World Vision’s transformation into a digital-first organisation that continues to find innovative ways to connect supporters to the life-changing work in the field that they’re helping to make possible.