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