Books in the Firefall series

Blindsight

Peter Watts

Siri Keeton, missing half his mind, is sent out on a mission to discover the source of thousands of probes that surrounded Earth and screamed an unintelligible alien signal before burning up in the atmosphere.

Echopraxia

Peter Watts

Daniel Br├╝ks is a baseline: a human with few enhancements, no cortical inlays, no way to blink and see subtitles in his vision.