Hannu Rajaniemi's "Darkome"
I see surprisingly little discussion of this book, given the high regard the Quantum Thief trilogy is held in.
I thought it was terrific: a high-stakes biotech thriller, with a ton of background research, interesting characters, and terrifyingly plausible to boot. It reads like something Neal Stephenson could have written before he disappeared up his own arse, except that it has about zero unnecessary filler.
It's a very quick read (about 250 pages) and definitely set up to be a series. I'm in for the next one whenever it drops.