Senior FE is high demand, low supply position. In a similar boat for hiring, but I think it helps when you are able to present your company as one that values FE (a good website for starters).
Since I leveled up on React over the past couple years I've mulled adding some FE projects on the side but backend consultancy seems to dominate the demand on my time/skills. Backend just doesn't give me the tangible feeling of FE work.