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