> any other tricks I would look for jobs in software companies who make stuff you want to learn to make, but for some parts of their products they also need th

> any other tricks I would look for jobs in software companies who make stuff you want to learn to make, but for some parts of their products they also need these Docker/Scala/Kafka/etc. from your resume. If you are good at these things, they gonna pay you well i.e. enough to support a family. I think over time you’ll inevitably learn their lower-level stuff you have to integrate with. You can then change position within the company should you want to.