The answer depends on two factors:
- If you effectively performed as a software engineer, then you should write something like this:
XYZ Company
Junior sofware engineer (14 Jul 2013-Present) xxx xxxx bla bla bla ... Last sentence: effectively performed the duties of a software engineer within six months of being hired. Salary raised twice. Promoted twice. And you pretty much answered the question ":You had the job title. What did you do with it?" The preferred answer is, of course: "A lot"
There is a downside to telling the truth. On the other hand, there is an upside to saying that you worked your way up from knowing very little, you worked your way up fast and did not let the grass grow under your feet, and you gained the professional trust and respect and respect from the staff and management on the way up. And yeah, you're looking for the money, too.
- If you did not perform your duties beyond junior level, then you crossed an ethical line and you have a clear resume accuracy problem.