Our team

Patrick Mumba

Finance & HR Assistant

Patrick brings a robust background in financial management, payroll systems, compliance, and administrative support. His experience with organisations like Sahrc Zambia, Maryland Zambia, and the LHRF Foundation has enabled him to help design and operationalise finance and HR systems, providing WSUP Zambia with a solid foundation to build upon. When he’s not crunching numbers, Patrick loves getting outdoors, whether it's hiking around the outskirts of Lusaka or trying his hand at weekend gardening projects.

Mohammad Habibur Rahman

Finance Manager, Bangladesh and Zambia

Habibur is a seasoned finance and administration professional with 25 years of experience in financial management, strategic planning, and organisational leadership. Based in Dhaka, he manages WSUP’s finance functions in both Bangladesh and Zambia. His career includes senior roles in national and international development organisations, notably as Deputy Director of Finance and Accounts at People-Oriented Program Implementation (POPI) and as Management Accountant at Practical Action. Most recently, he was Manager of Business Administration at Swisscontact, overseeing finance, HR, procurement, contracting, and logistics for the large-scale PRABRIDDHI project. Habibur is recognised for his integrity, leadership, and results-driven approach in managing complex development operations across Bangladesh.

David Mulemba

Project Officer – Engineering

David is a dedicated Water and Sanitation Engineer with over nine years of experience in rural, peri-urban, and urban WASH project planning, infrastructure development, and capacity building. His expertise includes GIS and Remote sensing, the design and rehabilitation of water supply and sanitation systems, and the integration of climate-resilient and nature-based solutions to strengthen sustainable service delivery. He possesses functional knowledge in IWASH engineering and Integrated Water Resources Management. He is committed to advancing inclusive WASH solutions and contributing to SDG 6 for vulnerable communities.

Clement Banda

Project Officer – Engineering

Clement Banda is a Civil and Environmental Engineer with over 11 years of experience delivering infrastructure, WASH, and construction projects across Zambia. He has worked with leading international partners, including JICA, the Millennium Challenge Account (MCA Zambia), and consultants such as NIHON SEKKEI (Japanese) and Mariswe consultants, contributing to hospital upgrades, large-scale water supply systems, and high-lift pumping infrastructure. His technical expertise spans reinforced concrete works, mechanical and electrical supervision, QA/QC, stakeholder coordination, and compliance with ZEMA, ERB, MCC, and donor requirements. Clement is known for his strong leadership, analytical problem-solving, and commitment to delivering high-quality, impactful infrastructure that improves communities and supports national development.

Annie Chilufya

Project officer-Engineering

Annie Chilufya is a registered professional Civil and Environmental Engineer and Water Engineer with over 8 years of experience in water supply, sanitation, infrastructure development, and construction supervision. She has experience in WASH project implementation, quality assurance, contract compliance, stakeholder and community engagement. She is passionate about Sustainable and inclusive WASH solutions that improve access to essential services, particularly for underserving communities.

Reuben Sipuma

Senior Country Manager, Zambia/Regional Policy and Regulatory Lead

Reuben has managed the WSUP Zambia programme since 2008 and has over 17 years’ experience in water and sanitation service delivery, working with the government and its mandated service delivery institutions. Before joining WSUP, Reuben worked in WASH consulting services, helping deliver a number of government programmes that targeted poor communities across Zambia. He has managed the establishment of the only faecal sludge management model in Zambia serving the urban poor.