Career is destroyed here - Avis employé Infrastructure Engineer GovTech

I had spent the past decade in the private sector building up my confidence and technical expertise in building up infrastructure from start to finish. But in GovTech, I am assigned a role that doesn't make use of my experience at all. Budgeting, getting quotes, comparing quotes, accounting, procurement etc which I have zero knowledge. What is the point of asking about my experience during interview in the first place? Singapore already has not enough talent and bad management decision has destroyed my career by assigning me a wrong role. Step in my shoes. You will understand.