Before pursuing her postgraduate degree, she has been trained as an Applied Behaviour Analysis (ABA) therapist and worked one year at an Autism Centre in Melbourne. She has a deep passion in working with children with Autism Spectrum Disorder (ASD), which hence influenced her research thesis topics on working towards the advancement of intervention for young children with ASD. Su Sen had her clinical placement in the psychiatry department of Hospital Kuala Lumpur and UPM Porta Cabin of Hospital Kajang respectively. She has been trained in delivering Cognitive Behaviour Therapy (CBT) and Behavioural therapy to both child and adult clients.