His language list is a bit specific imo. For good or bad many corporate applications are c# and Java. If web add JavaScript in there and if data or cloud add Python. All things being even between two candidates if your language skillset matches a project you’d be more likely to get hired. Wondering if this guy can broaden his languages to include one or two of the top 5 languages.

Unfortunately are not all about programming skills alone, working within flexibility of learning new skills, team politics and team structure can play a lot for candidate selection.

The main thing I’d say is don’t give up but use some of your free time to maybe diversify your skillset and apply for some other positions in those areas.

I haven’t looked into it but I’ve heard it’s pretty good docker, or otherwise. Self hosting is not quite at the masses yet but this sounds like one of the easier ones

It’s a decent argument to host your own instance just for your self and not having to shuffle subscriptions around