这位数学教授退休后不干安逸，开设从事软件的开发工作 用英语怎么说 谢谢

你是不是要翻译这句：
这位数学教授退休后不甘（干）安逸，开始（设）从事软件的开发工作
After he retired the math professor was unwilling to take a life of ease ,so he started on the software development.

After this math professor retires does not do easily and comfortably,opens is engaged in software the development work