I would like a salary that is equivelant to the amount of work I do.
仕事量 the amount of work I do
見合う equivalent to/corresponds to
給料 salary/pay/wage
欲しい I want/I would like
「仕事量が多いのに、薄給です。仕事量に見合う、十分な給料が欲しいです」というのは The amount of work I do is a lot, but my pay is low. I would like a salary that is sufficient and equivelant to the amount of work I do と表現できます。
例文 I work long hours but I don't receive a good salary. I would like pay that is equivelant to the amount of work I do.
「時間的に長い間働くのですが、薄給です。仕事量に見合う給料が欲しい。」
参考になれば幸いです。