I have an analytics background and have been applying for multiple CRO jobs. It's very frustrating the breadth of skills that people want the inhouse CRO guy to have (i.e I've had interview questions on JS frameworks, very advanced stats, non-trivial SQL, CMS systems, photoshop, SEO, paid search, Salesforce ...) especially when I know a lot of whole agencies couldn't tick all those boxes.

Would love to start freelancing this stuff but it seems like it needs so much personal branding