Here is the full list of all 32 Dex achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
Had a taste of all the 'professionals'
Met the new BiofarmTech receptionist
Drank more than 10 Energo Colas
Found Soto
Got crushed by an elevator
Completed the game
Met the original
Sold all the antiques to Hank
Maximized a Major skill to level 6
Reunited ill-fated lovers
Upgraded a software to its maximum level
Forced Mitchell to confront his past
Exposed Crash's identity to the world
Reached level 15
Opened Ellie's eyes
Acquired the laser gun
Didn't leave anyone behind
Showed THE Armagear hacker who's boss
Opened the safe on the Eclipse
Bested a war machine
Installed 7 implants
Defeated an old acquaintance for the second time
Reached level 10
Rescued Shen
Opened the safe in the Aphrodite
Neutralized the TruBody gang
Picked 10 locks
Performed 20 Takedowns in a single playthrough
Helped an old man off the street
Performed a headshot
Reached level 5
Successfully used the Convince option in a dialog