I see you having a unique opportunity. There is a scarcity of strong SWE skills in the earth sciences related industries/businesses. You could refresh your reasons, motivations and interests for choosing earth sciences for your PhD. Perhaps your thesis and research connections reveal further dimensions.

In any earth sciences based work, there would be requirements for either data sciences or AI related processing, improvements, etc. Those are the sorts of areas that you might want to peddle your SWE skills as delivering.