Careers to work in for a CS background in non-EA companies besides AI risks?

This isn't specifically my area of expertise, but in my research for "physical" engineering roles I often find accompanying software engineering roles, such as bioreactors for lab-grown meat, open sustainable technology projects, companies like Zipline working in low-income countries, start-ups that have gone through Y Combinator's non-profit program, and various biosecurity orgs/companies need bioinformatics/data scientists/software engineers. You can find more ideas on the 80k career review of software engineering.

Global poverty needs plenty of tech talent, GiveDirectly and IDInsight might be good organizations to check out. 

I work on recommender systems for charities and fundraisers in the PayPal app. Let me know if you'd like a call to chat about it.