My father works for a medium-sized enterprise in Germany as an electrical engineer, most recently focused on calculating costs for larger projects and producing price quotes. He never studied at university but was trained as an electrician and worked his way up. Because of this there was never a real need for him to learn English.
Due to the COVID-19 pandemic there has been a shift in the kind of work he is doing. He has temporarily been assigned to a larger project from a different subsection of his department, as his own section has no new work available right now. This is challenging because all of the extremely technical documentation is in English.
My father and his boss have a good relationship, he is also valued by his colleagues for his decades of experience. He has been working for this company for about 5 years and is paid substantially more than his colleagues, that all hold university degrees in CS or electrical engineering. The thing is, I feel like everybody just assumes he is fluent in English, while his English is indeed quite poor.
As both of us are working from home right now I see how much he is struggling. While DeepL certainly helps the language barrier is high.
I wonder what would be the best course of action right now? I mean I try to help him but he feels very bad occasionally asking me for help, and secondly I fear that he will be assigned more work in the future in English.(*) The situation is quite delicate as most people in his position would usually be expected to be fluent in English.
I know this question is a bit unfocused, but I would like to hear some advice or opinions on the issue.
(*) Edit: This may very well not be the case. There are already larger projects related with his usual work coming up. Still it could happen.