Ask HN: What are some easy ways to earn some side money? 3 years ago
If you have your masters, you could try teaching as an adjunct at a local university at night. Pay isn't bad (relative to the amount of work) and you can stay in the field. Rewarding work, and in some state/provincial systems you can even earn a pension. I get speaking isn't your thing, so that might be an impediment, but maybe it's less of an issue in a more intimate setting