It may surprise you to learn that there are many opportunities for senior workers. It is very true, you can continue working after retirement—for a variety of valid reasons. For instance, perhaps you want to make more money, give back to the community, make new friends, or pursue a job you’ve always aspired to explore but have never had the chance to fully consider. Or perhaps you’ve heard that working can have a surprisingly wide range of positive effects on your overall health as you age.

The truth is that by actively working after they reach retirement age, many seniors today are reinventing what it implies to be retired. They are learning that the variety of ways they might make money matches the variety of motivations they may have for working. The options go much beyond merely full-time employment, of course. To give one example, some retirees launch enterprises. Others get part-time work.

The challenge is locating the greatest employment opportunities available for retirees. This list contains some of the best positions for senior employment.