Smuggler

Through moving contraband under the watchful eyes of city guards and port authorities, you have developed the ability to bypass prying eyes and to deal with those you can't. You know how to stay hidden through clever pathing and spotting the unguarded areas and know how to keep objects hidden through deft finger work and ingenious concealment devices.

Lock Jibb

At 3rd lvl you can use your thieves tools to modify a lock to make it harder for others to open. (+2 to dc) At higher lvls the +2 goes up by one at lvls  6  9  12  15 so that by lvl 15 you can cause the locks dc to increase by +6.

Level 3: Hidden Objects and Creatures

You are an adept smuggler. As a bonus action, you can make a Dexterity (Sleight of Hand) check to attempt to hide an object on a creature, vehicle, or other larger object. Another bonus action is required to withdraw an object you have already hidden in this way. You also have advantage on Intelligence (Investigation) checks to find hidden objects or secret compartments.

Additionally, when you take the Hide action, you may attempt to also hide another willing creature one size larger than you or smaller. The creature uses the same (Dexterity) Stealth check as you for as long as it remains within 30 feet of you, but can still reveal itself with its actions. If the creature would be at disadvantage for its Dexterity (Stealth) check, you make your check with disadvantage as well.

Level 9: Hidden routes

You know the hidden highways and byways to move sneakily about outside in cities and towns or while traveling the roads. Traveling in this manner grants a +10 bonus to Dexterity (Stealth) checks made by you and anyone in your group, but the time to travel is doubled.

Level 13: Money Talks

Your work has given you a keen sense in how to exploit guards, officials, and the average citizen. If an attempt at a Charisma (Persuasion) or Charisma (Deception) check has failed, you know if the creature is susceptible to a bribe and about how much coin is required to bribe them.

Level 17: Concealed Weapons

When you draw a weapon you have successfully hidden, you have advantage on the first attack roll you make with it before the end of the turn