Stembiso has been involved in:
- Supervising of sewer pipe laying, construction of Gabions and Reno mattresses embankment for Durban Metropolitan Municipality in KwaZulu Natal Province.
- Supervising of school and household sanitation projects for Ugu District Municipality, Uthungulu District Municipality and Umkhanyakude District 3. Municipality in KwaZulu Natal Province.
- Implementation of Rain Water Harvesting trial project for DWAF at Tshikonelo, Venda area in Limpopo Province.
- Construction supervising of Coega Zone 2 Phase 2 Industrial Infrastructure project in Port Elizabeth, Eastern Cape Province.
- Construction supervising of roads and stormwater pipelines in Bloemendal area for Nelson Mandela Bay Municipality in Port Elizabeth, Eastern Cape Province.
- Projects contract administration, Eastern Cape Province.