Staff Team

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Adrian Rosser Training Administrator (Logistics)
Andrei Viscu Finance & Operations Support Assistant
Andrew Davies
Financial Management Trainer
Barbara Johnstone Training Administrator
Erica Howe Training Operations Manager
Gail Leeder
Financial Management Trainer 
Gill Paulucci Operations Support Officer
Grace Rapoport
Operations Support Officer
Jackie Meek Recruitment Adviser
Jacques Lauruol Financial Management Trainer 
Jo Baker Financial Management Trainer 
Jo Dalton Operations Support Officer
Jo Davies Finance Manager
Joanne MacDonald Financial Management Trainer 
Judy Coombs
Finance Officer
Juliette Doddo Siddo Operations Support Officer
Lucy Markby Head of Human Resources and People Development 
Paula Bray In-house Coordinator/Trainer

Peter Sargent

Consultancy Director

Rob Hayes Training Manager and Finance Director
Sara Holloway Training Partnerships Manager
Segun Olowookere  Financial Management Trainer 
Stella Hobbs Recruitment Adviser
Terry Lewis Training & Publications Director
Tim Boyes-Watson Director
Victoria Bentiba

Operations Support Officer


Tim-Boyes-Watson, Director

Tim took over as Director of Mango in January 2010. Since then Tim has developed new strategic partnerships with organisations such as Christian Aid that have led to Mango providing capacity building support to hundreds of NGOs that are receiving grants from donor-funded projects in Sierra Leone and Malawi. Tim has played a leading role in encouraging NGOs to take a zero-tolerance approach to bribery. He also provides consultancy to a range of NGOs on financial strategy, value for money, risk management and grant management through Mango’s growing Consultancy Service.

Tim has worked in various roles within the NGO sector over the last 15 years. He joined Mango after being Chief Executive of a UK education and youth work charity, Learning South West. Prior to that Tim lived in Vietnam for 3 years as Country Director for VSO. At Christian Aid he was Head of Finance, Head of Programme Funding and acted as Finance Director for 6 months. His first job in the sector was as a Regional Accountant for West and Southern Africa at Save the Children. Tim studied Philosophy and qualified as a chartered accountant with Arthur Andersen.

Terry Lewis, Training & Publications Director

Terry joined Mango in 2001 to set up and lead the new Training Department. Since then, she has developed and led Mango's award-winning global training programme, including developing flagship training events and course handbooks.

Terry has worked in the NGO sector in the UK and developing world since the early 1980s. Her roles have included Chief Officer of a local UK charity, Training & Internal Audit Accountant for a leading Housing Association and Financial Management Adviser to NGOs in Swaziland with Skillshare International. It was during her time in Swaziland that Terry developed a passion for building the financial skills and confidence of staff in local NGOs. This gave birth to the participatory and fun training approach that Mango is now renowned for.

For the four years before joining Mango, Terry worked as a freelance consultant and trainer, running financial management and strategic planning training for local NGOs in various parts of the developing world. During this time, Terry also completed an MSc in Development Management.

Terry is a Visiting Fellow at Liverpool University's School of Tropical Medicine, where she is course director for the financial management module on development studies masters' courses.

Lucy Markby, Head of Human Resources and People Development 

Lucy holds degrees in Anthropology, Development Studies and Human Resource Management and is a member of the Chartered Institute of Personnel and Development. Lucy spent two years working on educational projects in Palestine and has travelled widely across the Middle East region.

She has worked with an emergency health NGO for five years with specific responsibilities for recruitment of international staff and two years on global deployment with a major international accounting firm.

Lucy was the Recruitment Director at Mango for 10 years, before she recently shifted focus to providing HR and development support to staff and managers internally.

Sara Holloway, Training Partnerships Manager

Sara is a highly experienced trainer and financial manager. She has worked with large and small NGOs in Kenya, India, Uganda and across Southern Africa. Sara originally qualified with the Chartered Institute of Management Accountants, working with blue chip commercial firms and Nuffield Hospitals, in the UK and US.

Before joining Mango in 2004, Sara was Regional Finance Advisor for Save the Children (UK) in Southern Africa. Sara also worked on major humanitarian responses in Gujarat, India and long-term development programmes in Kenya and Uganda. In 2006-2008 Sara piloted a Training Support Project for Mango in Sri Lanka whilst seconded to Christian Aid.

Sara returned to the UK in June 2008 to the new role of Training Partnerships Manager, working with organisations and finance trainers to build up their training capacity.

Rob Hayes, Training Manager and Finance Director

Rob has extensive financial experience in the commercial, education and NGO sectors. Before joining Mango Rob was a senior finance manager in Tanzania with Restless Development (an INGO formerly known as Student Partnerships Worldwide) where he was responsible for introducing and embedding new financial management policies and procedures. Rob also worked as a financial management consultant in Zimbabwe and Uganda.

Rob qualified as a Chartered Management Accountant with a FTSE 100 company. Prior to working in the NGO sector Rob worked for a London University.

Jacques Lauruol, Financial Management Trainer

Jacques is an experienced Finance Manager in the Development and Emergency NGO sector. He trained as a Business Accountant in France and holds a Diploma in Management Studies. Before joining Mango, Jacques worked for 10 years with Oxfam where he worked in a variety of position including as an accountant in the Emergencies Department and as a Financial Adviser for different regions.

Prior to working with Oxfam, Jacques has worked in a variety of UK national and local NGOs and charities such as: the Young Women Christian Association (Deputy Financial Director), Earthwatch (Chief Finance Officer), the Gloucestershire Counselling Service (Accountant), Wynstones School (Bursar).

Erica Howe, Training Operations Manager

Before joining Mango Erica worked with major UK retail businesses including Marks & Spencer and Crabtree & Evelyn. She was rapidly promoted to management positions, due to her very strong commitment to meeting customers' needs and her ability to help teams work effectively. She is also experienced in working with international suppliers.

Barbara Johnstone, Training Administrator

Barbara has a wide and varied experience of project and administrative work. She joined Mango from the UK Atomic Energy Authority in Harwell, where she co-ordinated and supported a range of initiatives.

Jackie Meek, Recruitment Adviser

Jackie is an experienced HR and finance officer and joined Mango in November 2005. She has wide experience in developing and implementing HR and related systems in the NGO and small business sectors. Before joining Mango, she worked with Viva Network, another international NGO based in Oxford. Jackie has worked with NGO projects in Eastern Europe and Africa and is part-qualified in professional HR management with the Chartered Institute of Personnel and Development.

Stella Hobbs, Recruitment Adviser

Stella is an experienced recruiter of international development professionals and joined Mango in November 2009.  Before joining Mango, she worked with a DFID funded NGO, sourcing candidates and guiding UK and in-country selection processes for long-term assignments with local organizations in Bolivia, Brazil, Burkina Faso, Mali and the occupied Palestinian territories.  Stella holds a degree in Law.

Jo Davies, Finance Manager

Jo started her career with the Anchor Trust, a housing association, where she rose to the position of Regional Finance Officer. She moved on to work with another charity, the Oxfordshire Children's Fund, setting up their finance systems on start up. Jo subsequently worked as the Finance Manager for a family run business, before joining Mango early in 2007.

Jo Baker, Financial Management Trainer

Before joining Mango, Jo was Head of International Finance for the British Red Cross Society for 8 years, responsible for controlling and advising on all international funding. She has worked overseas in Africa, Asia and the Caribbean with partner Red Cross/Crescent Societies. Prior to joining BRCS, Jo qualified as a chartered accountant at a “Big Four” firm where among other clients she worked specifically with a number of charities. Since joining Mango, first as an Associate, Jo has particularly focused on delivering training courses and is now part of the Training Partnerships team.

Jo Dalton, Operations Support Officer

Jo is an experienced administrator with over 20 years' experience. Before joining Mango, Jo started her career on a youth training scheme with a local council and has since been employed by several big companies: Legal & General, British Telecom and British Gas. Jo’s favourite job to date was working for BPP, who provide accountancy training, as she really liked working in a training environment, so is very happy to be working for Mango now! 

Adrian Rosser, Training Administrator (Logistics)

Adrian began his career working in West and Southern Africa as a teacher, teacher trainer and coordinator of a teaching aid production unit. On returning to England he has taught science at several schools and was deputy head of a special needs school. He has always maintained links with Africa including volunteer work in Ghana.

He is now putting his putting his skills and experience to good use as logistics administrator at Mango.

Paula Bray, In-house Coordinator/Financial Management Trainer

Before joining Mango, Paula worked for the British Red Cross for over five years, co-ordinating their International Division’s financial planning, budgeting and re-forecasting processes, providing financial support and advice to Red Cross & Red Crescent partners and delivering training to emergency response teams.

Paula has worked overseas on both development and emergency projects primarily in Africa and Asia on behalf of the British Red Cross and other NGOs including Merlin, MSF, Save the Children and Oxfam. She holds a Business Studies degree and has qualified as a chartered management accountant (CIMA).

Paula took up the new role of In-house Coordinator in May 2012.

Grace Rapoport, Operations Support Officer

Grace graduated from Oxford Brookes University in 2009 with a degree in French with International Relations, a course that shaped her interest in international NGOs. She has since been developing her skills as an administrator and has enjoyed working with a variety of people. She is delighted to be working as part of the Mango team, where she can now pursue her goal of supporting the vital work of NGOs worldwide.

Juliette Doddo Siddo, Operations Support Officer

Juliette holds a Master in Management of Cultural and Educational Organisations and has significant experience in administrative and accounts management, mainly within the arts.

Having travelled a lot in Africa she feels particularly passionate by the fight against poverty. She has undertaken some humanitarian projects with her husband in Niger and wants to apply her competences to the NGO sector. She is therefore delighted to be part of the Mango team!

Judy Coombs, Finance Officer

Judy’s financial experience lies mainly within the public sector, having worked for local county and district councils for nearly 20 years. During this time she gained experience in payroll, HR, purchase ledger, sales ledger, leasing contracts and the construction industry. Judy then moved into the private sector, working for one of the lead publishers, Blackwells, where she successfully led a team managing payments worldwide in 29 different currencies. She later managed a small portfolio of properties for Savills. Judy, who is AAT qualified, is eager to share her knowledge and experience working with Mango and learning the ethos of charity work.

Joanne MacDonald, Financial Management Trainer

Joanne is a highly experienced finance manager. She has been a Mango register member since 2005 after moving from the UK commercial sector into International Development. Prior to joining Mango’s Training Team in 2012, Joanne was Head of Administration for GIZ (formerly GTZ) in Sierra Leone as a member of the Senior Management Team and focussed on the challenging area of anti-corruption.

Joanne has completed several consultancies for Restless Development (previously SPW) in Sierra Leone and the London HQ, assisting with recruitment and training of key staff. Whilst working for VETAID as a Regional Finance Manager working in Mozambique, Kenya, Tanzania and Somaliland, Joanne established a regional financial reporting structure including the implementation of QuickBooks. She has also worked with GOAL in Darfur as an emergency field Accountant.

Joanne has several years experience working and training staff in challenging environments to achieve best practice, and has several years of experience of working across a diverse range of organisations from agriculture to primary healthcare projects.  Joanne also works voluntarily as one of the trustees, in the role of Treasurer, for a local UK based charity. 

Victoria Bentiba, Operations Support Officer

Victoria has 14 years experience supporting business operations in the finance and NGO sectors; and holds a Diploma in Environment and Development Politics. Before joining Mango Victoria worked in the Middle East providing client liaison and business support at Zurich Financial Services. Victoria has also worked for 3 years in the offices of Oxfam GB and been involved in fundraising projects for Oxfam GB, Friends of the Earth and Amnesty International. 

Peter Sargent, Consultancy Director

Peter is a qualified chartered management accountant with over 14 years experience in the NGO sector during which time he has worked around the globe supporting development and humanitarian aid programmes as a finance specialist, with extensive experience in East and Central Africa in particular. He leads Mango’s expanding Consultancy Service while also delivering consultancy assignments directly.

Peter speaks fluent French and facilitates Mango’s training courses and consultancy services in francophone countries around the world. He has a particular interest and expertise in building the capacity of local partners, in cost recovery practices and improving grant and risk management.

Segun Olowookere, Financial Management Trainer

Segun is an experienced finance manager and has over seven years experience working in the not-for-profit sector. Prior to joining Mango, Segun worked for Restless Development (formerly known as SPW) where he gained great experience leading the financial management directly at the field office level as well as working in the head office coordinating and supporting finance teams overseas.

Segun holds a degree in financial mathematics and is an ACMA member of CIMA (Chartered Institute of Management Accountants). He has several years experience training and building the financial capacity of NGO staff and is passionate about delivering training and motivating people.

Gail Leeder, Financial Management Trainer

Gail is an experienced Finance Manager who has worked in the not-for-profit sector since 2006. She became a Mango register member in 2007 after having left the UK commercial sector to work overseas in Humanitarian Aid. Prior to joining Mango’s Training Team in 2012, Gail was Finance Manager for several INGOs, including Medecins sans Frontieres (MSF), GOAL and Mines Advisory Group (MAG), working in Haiti, DRC and other African countries. She also worked in the Dutch HQ of MSF for 2 years.

Gail is a CIMA qualified accountant and was Finance Manager of a £60m turnover food manufacturing company before joining the NGO sector.

Gill Paulucci, Operations Support Officer  

Gill graduated with a degree in French, Spanish and International Relations. Before joining Mango, Gill worked in many different administrative roles, including 3 years as a PA at a Forestry and Utilities Company where part of her responsibilities was organising a schedule of Safety Workshops in the UK. Gill also worked for 3 years with a training company providing ICT Apprenticeships. Gill is very interested in applying her skills from working within training to Mango and the NGO sector. 

Andrew Davies, Financial Management Trainer

Andrew is a UK chartered accountant with substantial experience of financial management in the NGO sector. After qualifying as an accountant with a Big Four firm, and a few years of commercial experience, he has spent most of the last 20 years working for a variety of International NGOs. He has been a member of the Mango register for many years, and before becoming a full time Mango trainer, he worked for Oxfam. With Oxfam he managed the support functions in emergencies worldwide, including Haiti, Ethiopia, South Sudan and West Africa, and before that he held a regional position in Latin America.

Previously he worked for other NGOs including VSO (in London HQ), Save the Children UK (Emergencies Department) and Mercy Corps in the Middle East. He has progressively developed his working experience beyond finance to manage other areas including Logistics, Human Resources, Funding, IT, Administration and Security. He has also spent 8 years as a teacher of English as a Foreign Language, in Italy and Africa. He is fluent in French, Italian and Spanish. He is particularly interested in helping finance and programme staff to work better together and understand each other.

Andrei Viscu, Finance & Operations Support Assistant

Andrei joined Mango in 2013 as an apprentice studying Business & Administration, having previously worked in quality control in the BMW Mini Plant in Oxford.

He has quickly become a valued team member with his friendly approach and logistical and IT skills, providing support across Mango’s Training, Recruitment and Finance teams.