2021’s Truth of the Divine is the second volume in Lindsay Ellis’s Noumena alternate history first contact series.
Aliens — in the form of a handful of anti-social political refugees equipped with technology far superior to ours — have fled to Earth and US bureaucracy has tried to adapt to new needs. Cora Sabino is one of those adaptations. One of very few humans with whom the aliens will deign to speak, she has a full-time job mediating between the aliens and the US’s various alphabet soup agencies. On the one hand, it’s a secure job in economically troubled times. On the other hand, Cora has to deal with post-traumatic stress disorder (complicated by her mental link with one particular alien). She also has to cope with US security agencies, which are often staffed by … um … difficult people.
Her already fraught existence is complicated by the rise of the Third Party.