Place the Nixie tube pins onto the Nixie tube itself, this will allow them to be soldered into the circuit board much more easily. Don't slide the pins fully onto the Nixie tube, make sure they're just on enough to be held in place. If you slide them on completely, you might accidentally solder the pins to the Nixie tube itself.

Insert the Nixie tube with the pins into the circuit board. Solder the pins in place. 

After the pins have been soldered in place, snip away excess pin length from the back side of the board.

Using two 0.1" header pins, solder the jumper pins into place above the position for the 15k resistor.

Using the 13 remaining header pins, snip the second-to-last pin on one end without actually cutting the strip. It should look like this when you're done:

Now, solder the breadboard pins into position on the back side of the board.

Finally, solder the 15k Ohm resistor into place.