Cheng is a chartered engineer at Mott MacDonald, where she worked for 4 years after graduating with an MEng from Imperial. She has experience in the design of large-scale infrastructure in the UK and abroad, focusing on deep excavations and retaining structures. In 2024, she was a Cooling Prize finalist, highly commended in the Ground Engineering Rising Star category, and won the Women in Construction and Engineering Best Young Engineer award for early career excellence. During her site placement, she recognised the value of interpreting instrumentation and monitoring readings and is keen to promote data-driven designs to achieve sustainability goals.