Environmental Engineer

In 2014, after conducting a PhD in Civil Engineering at the Water, Engineering and Development Centre (WEDC) at Loughborough University (UK), the newly Dr. Nicola Greene wondered if she had become ‘too academic’. The antidote to this concern was to move to Malawi to design technology and business models for emptying, transporting, treating and reusing human waste from on-site sanitation systems. Six years later, she continues to address these issues, having picked, applied, and adapted her knowledge from work in Malawi, Kenya, Rwanda, Zambia, Sierra Leone and Uganda. 


Nicola’s training and work as an engineer, enthusiasm for design, entrepreneurial background, plus an Irish ability to talk to almost anyone, brings together a solid set of skills to create practical faecal sludge and solid waste management systems that scale. Now living permanently in Kenya, Nicola founded OPERO Services to establish a network of East African professionals with a passion for the same. 


Outside of work - Nicola spends most of her time on a mountain bike.

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Civil Engineer

Water & Sanitation

A Civil Engineer graduate from the University of Nairobi, Edwin started off his career as a WASH engineer as a volunteer for Slum architects association- a student organisation that brings together professionals in the built industry for slum upgrading projects. It was while he was part of a team creating solutions for the low-income dwellers that he joined Sanergy as a technical support engineer. 

During this period Edwin took part in the design and construction of a one of its kind transfer station that is safely disposing of more than 10,000l of waste from the community daily.  

Edwin`s passion lies in creating novel engineering solutions to issues of waste management and is committed to addressing these problems in his own county, and country.He is passionate about design and innovation, and has experience in manufacturing, construction, product and systems design. 


When not involved in equations, sketches, and CAD models, Edwin enjoys playing piano and a saxophone

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Stellah Ngere started off her career as a laboratory technician but a thirst for creating positive impact saw her venture to the public health sector; working for various Non Governmental Organisations in monitoring and research activities. Stellah's forte is in research as she has been involved in designing data collection tools, training field assistants, data analysis and interpretation. 


Stellah is a recipient of the Bill and Melinda Gates foundation scholarship and  recently acquired a Master of Science in Sanitation from IHE Delft Institute of Water Education, the Netherlands. She is passionate about providing sustainable sanitation solutions  to all; with a particular emphasis on mothers and children.

Off work, Stellah likes to try new recipes and reading a good book

Market Research

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