23AndMe doesn't tell you much about your DNA actually, they can only tell you some things about already known variations. If you really wanna know everything about your DNA, you should look at whole genome sequencing (WGS). WGS is usually done by companies like Illumina and analysis can be done by a company like Bina Technologies. The whole field is getting more and more data and analytics driven so there's lots of opportunities for software engineers and data scientists. Check out http://www.binatechnologies.com/vision to get a better idea of the field.