Associates Team


Alfred Brian Agaba, Training Associate and Consultant

Alfred is a Chartered Certified Accountant and holder of Bachelors of Commerce Degree (MUK). He commenced his 10 year career at KPMG Uganda, where he carried out external audits. He joined ACLAIM Africa Limited as an Accounting Consultant and later promoted to Senior Financial Consultant and Trainer, heading the Financial Consultancy Department. 

Alfred then joined Century Bottling Company (Coca Cola) as a Country Planning Manager and later rejoined KPMG Uganda, where he headed the Internal Audit, Risk & Compliance Services.  Alfred left KPMG to run SMART Consult (U) Limited on a full-time basis as Managing Director. Here, he has carried out internal audits, business planning, financial management trainings, capacity and risk assessments, risk management, business diagnostic reviews, among others.

Christine Faith Kallemera , Training Associate

Christine is a qualified accountant, a member of the institute of Certified Public Accountants of Uganda (ICPAU) and a member of the Institute of Internal Auditors (IIA). She is a Senior Financial Consultant and Trainer with ACLAIM Africa Limited (ACLAIM), a management consultancy firm in Uganda. She has vast experience in the area of external and internal audits. 

Her current duties at ACLAIM include facilitating Financial Management training and mentoring of finance staff; developing finance manuals; recruitment of finance personnel; installation of accounting software and carrying out internal audits. 

Dave Tooke, Training Associate

Dave is Chartered Accountant, working in the private sector until 2005. Since then he has worked with INGOs, initially as a Finance Manager and subsequently a Program Manager.

He has worked in both North and South Sudan for landmine removal organisations and in the field for Save the Children since 2008, being deployed to major rapid response emergencies. In this role he has helped to develop financial strategies and budgets within Myanmar, Haiti and the Horn of Africa. He has contributed significantly to the writing of emergency standard operating procedures from a finance perspective.

Recently he has also been involved in the development of risk assessment and operational tools to ensure best practice in cash transfer programming.

Debbie Pitt, Training Associate

Debbie worked with Mango as a full-time trainer for 5 years until April 2012 when she transferred to the Training Associate team.

Before joining Mango, Debbie worked for several years as a Financial Manager and in-house trainer in many countries throughout the world, mostly in Asia, in both development and emergency NGOs including Merlin, VSO and Everychild. Debbie’s extensive experience includes working in the field as a Finance Manager; building the skills of a Finance Manager counterpart; and reviewing financial systems and implementing finance manuals.

Working for both large and small International NGOs in the field, has given Debbie an insight to the problems that all organisations face with the financial demands put on international and national staff and the importance of having confident and competent well trained personnel to ensure good financial management.

Frances Leaman, Training Associate

Frances is an ACCA qualified accountant who joined Mango as an associate trainer in February 2008.

Frances worked in the UK social housing sector for eight years culminating in a position as Regional Finance Manager for a national UK Housing Association. During 2006 and 2007, Frances was Financial Controller for GOAL in Mozambique where she introduced systems to enable local partners to manage, monitor and report on donor funds prior to GOAL's withdrawal from the country.

As well as her work with Mango, Frances continues to work with UK Housing Association clients including as Interim Finance Manager for an association specialising in housing for people with mental health problems.

Hilda Hakiza, Training Associate

Hilda is a Chartered Certified Accountant (ACCA UK), a member of the Institute of Certified Public Accountants of Uganda and a member of the Institute of Internal Auditors Inc. She is an enthusiastic professional based in Rwanda working as Regional Finance Manager and Controller for SPARK Africa, a Dutch organization. Before that, Hilda worked as a Senior Financial Consultant & Trainer with ACLAIM Africa Ltd, a management consultancy firm based in Uganda for close to four years. She also previously held posts with PricewaterhouseCoopers in Bermuda and with accounting firms in Uganda and the UK.

Hilda has worked with several international and local NGOs conducting financial management trainings and assessments, reviewing of systems, capacity building/mentoring of finance personnel, internal & external audits and involvement in installation of computerized accounting software. This has involved working with organizations in Rwanda, Uganda, Burundi, Ethiopia, Kenya, Liberia and South Sudan.  

Jaime De Alfonso, Training Associate

Jaime has been working in International Development projects since 1999, where he first joined the Spanish NGO Medicos del Mundo in Bosnia and Herzegovina as a Country Administrator. Since then, he has lived and worked in France, Germany and Spain always for humanitarian and civil society organizations (such as Médecins du Monde, Oxfam or AECID among others). Jaime is a regular trainer in Finance and Project Management courses in BIOFORCE (Lyon), NOHA (University of Deusto-Bilbao) and Universidad de Cádiz.

Joseph Kaggwa Mukasa, Training Associate and Consultant

Joseph is a Chartered Certified Accountant, a member of the Institute of Internal Auditors Inc. and a member of the Institute of Certified Public Accountants of Uganda. Until recently, he worked for several years as a Senior Financial Consultant & Trainer and for three years headed the Financial Consultancy department at ACLAIM Africa Limited, a Ugandan values-based company.

He is now a director at SMART Consult (U) Limited, a management consultancy and training company in Uganda and heads up the training team.

Joseph has vast experience in both external and internal audits with NGOs in Uganda, Mozambique, Rwanda and Burundi. Joseph has carried out various financial management trainings, financial management assessments, internal audits, writing financial manuals for clients and mentoring of finance staff.

Lyn Harper, Training Associate

Lyn has is based in Melbourne Australia. She has degrees in Economics, Accounting, a Diploma of Education and a Masters of International Development. Lyn has a dual career in financial management and education with wide international experience especially in the Pacific including longer contracts in PNG, Fiji and China.

She has worked in the corporate, public and development sectors bringing a strong focus on sound, timely financial administration and management. Her experience comprises a wide range of roles including Director of Corporate Resources ACMI, Project Manager GRM, and Operations Manager/ Financial Accountant – Capacity Building Service Centre.

As well as her work with Mango, Lyn currently manages a team of Financial and Management Accountants who support Oxfam Australia’s programmes, specialising in the financial management training and development of in-country staff.

Michael Pitts, Consultant

Michael is a qualified accountant (FCA) with 15 years progressive and senior management experience with KPMG. Since 1999 Michael has been working as a consultant to international NGOs, in Eastern Europe, Africa, Asia and Latin-America.

Michael was Treasurer of Sightsavers International from 2001 until 2009 and has worked closely with the International HIV/Aids Alliance on assignments including: feasibility of setting up country offices in Mozambique and Madagascar ; evaluation and setting up salary scales in Burkina Faso; recruiting financial personnel (UK and India) and financial reviews.

To date. Michael has delivered Mango training courses overseas and in the UK and carried out short term financial management reviews for NGO operations in Africa, Asia and Latin America. Michael has recently become a member of the Finance Committee of the Institute of Development Studies.

Philippe Le Jalle, Training Associate

Philippe has extensive experience in management (finance and human resources) in the relief and development NGO sector. He trained as an engineer and is a graduate in Economics and Finance.

Before joining Mango, Philippe spent 15 years in the field (Eastern Europe, Africa, Asia) within French NGOs of all sizes (Action contre la Faim, Solidarités, Aide Médicale Internationale, Médecins Sans Frontières and Handicap International). During that time he has held various positions from Administrator to Administrative and Finance Coordinator. He was also the South Asia regional finance manager for Handicap International in Delhi.

Prior to this experience in the humanitarian sector, Philippe held a position as assistant in an accounting firm near Paris.

Rudi Lewin, Consultant

Rudi has over 10 years’ experience working in senior management roles and as a consultant in financial management of NGOs. Following a successful commercial career in SAP consulting with Andersen Consulting and Audit and Transaction services with PwC he joined Action Aid in 2002 working as Head of Finance, where he was responsible for the financial set up of ActionAid International during its first two critical years. In 2005 he was appointed Finance Director and company secretary of ActionAid in the UK. He has been an associate consultant with Mango since 2008.

Examples of recent work include project managing the early phases of a global financial system implementation for a large INGO Federation, developing and delivering Fraud and Anti-bribery training in Bolivia as part of an internal audit visit, leading a financial review of a UK NGO partner organisation in Mozambique following concerns of financial difficulties and fraud allegations, developing a restructuring proposal for a UK NGO following a review of it finance functions’ operations and staffing, and developing a global financial policies manual for a large international NGO.

Rudi is a qualified chartered accountant (ACA) with 12 years’ post qualification experience. He is also a trusted advisor of ActionAid Brazil, a national NGO, as such a regular member of the Board and Finance committee. He is fluent in English, Spanish and German and has working knowledge of Italian and Portuguese. 

Sam Musoke, Training Associate and Consultant

Sam is a qualified accountant (ACA UK), with 10 years’ post qualification experience, mostly in the developing world.  She moved to Uganda in 2001, and  after 2 years auditing, she joined a Ugandan firm called ACLAIM Africa Ltd where she established the Financial Consultancy and Training department.   Sam has been a Mango Associate since 2004.  In 2009, she spent 6 months in the Mango offices in Oxford, developing course materials for Farmer Organisations and updating Mango’s online Guide to Financial Management.

With ACLAIM, Sam has carried out a wide range of assignments with NGOs in Uganda, Kenya, Tanzania, Zimbabwe, Ethiopia and UK.  She has developed a holistic approach to organisational financial management capacity building.  Other work involves internal audits and systems reviews, accounts computerisation, mentoring, assessments, developing finance manuals and etc. She has experience in the micro finance sector and training at grassroots level.

Sareta Thomas, Training Associate and Consultant

Sareta is based in Pretoria, South Africa, and has worked with Mango since 2005.

Sareta received a Financial Accountancy degree at the University of Pretoria in South Africa. She then worked in the UK with commercial accounting firms before moving into the NGO sector in 2003. Sareta was Finance Manager for Save the Children (UK) for the Southern Africa Regional office as well as the South Africa and Lesotho country offices. She also provided assistance and training to other SCUK offices and local partners in the region. She lectured on a part time basis in Accountancy at the Damelin College in South Africa.

Sareta now works as a financial management consultant, advising NGO finance teams on best practice in financial management and providing training for project staff. As well as her Mango assignments, Sareta’s current clients include FinMark Trust, Save the Children (UK) and British Red Cross Society.

Siham Bortcosh, Consultant

Siham is an ACA qualified accountant with extensive consulting and senior management experience. Since 1994, Siham has been working with NGOs and national charities in the UK, in senior financial management positions, including Macmillan Cancer Support and VSO, and on a freelance basis.

She is a clear, strategic thinker and finance professional who has taken a leadership role in organisations undertaking major strategic change and growth. She is an excellent project manager, comfortable with high level concepts and objectives as well as detail, with an ability to motivate, coach and develop staff, and to plan and prioritise flexibly and effectively.

She has excellent analytical skills developed in a variety of business settings, ranging from complex business transactions to management within large voluntary sector organisations. Siham currently designs, plans and facilitates Mango's seminar programme for the Finance Directors of some of the UK's largest international NGOs.

Viraj Jethwa, Training Associate and Consultant

Viraj is a qualified accountant [FCCA (UK); CA (NZ)] and a graduate of the London School of Economics. Over the past 25 years, he has gained extensive experience in the not-for-profit and private sectors as Internal/External Auditor, Forensic Accountant, Finance Director and CEO. He has a track record of working constructively with trustees, senior management and staff. Apart from auditing, his skills are in organisational development, financial and change management. Viraj has worked for seven years in Uganda and has done consultancy work for INGOs in Kenya, Ethiopia, North and South Sudan. In addition to English, he speaks Hindi, Gujarati, Urdu and Swahili.