Sci Fi Novel About alcoholic mech pilot

FOUND: The Archive Undying by Emma Mieko Candon I found a book in a store recently that I can no longer find anywhere. The cover had a. Blue turquoise pallet and had a giant robot behind an island I think. The description talked about some sort of machine god and said it centered on a disgraced and alcoholic mech pilot, can anyone help me find it? Edit: the author had a Japanese name and one of the accolades listed him as one of the best Mecha authors.