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