The Last Human by P. S. Hoffman

ALL HUMANKIND died thousands of years ago... …but the xenos still worship them as GODS. Today, hundreds of alien civilizations thrive in the gods’ lost cities and fallen megastructures. One Empire has learned to harness the remains of humanity's forgotten technology to reconnect the distant worlds... and dominate them. Eolh is an old, jaded, avian thief who lives in the dark underbelly of a conquered city. When the Empire first opened the gate between worlds, they stormed his home, killed his gang, and burned everything he held dear. But that was a long time ago. Now, the resistance is dead. No one dreams of fighting back—for the Empire wields the weapons of the gods: warships that fly, robotic constructs that hunt, and rare mysteries scavenged from the tombs of the gods. Eolh lives a half-life, thieving, running jobs, and selling his services as a freelance listener for the last gangs of Lowtown. He trusts no one, and only looks out for himself. When an unusual heist takes a deadly turn, Eolh must bargain with an overzealous android who carries an impossible secret—one that will shake the foundations of the universe. There is one last hope for salvation. For his people, or maybe just for himself… This is the story of The Last Human.