YOU WROTE:

Current medical status: Had an MRI on my back, results were as follows: "Multiplanar imaging was performed of the lumbosacral spine. Spine alignment appears normal. There is some disk desiccation present at L3-L4 level. There is an associated posterior disk protrusion at this level. The disk protrusion extends posteriorly encroaching slightly on the thecal sac. There is no significant encroachment on the exit nerve foramina at this level. The rest of the lumbosacral spine appears within normal limits."


It seems that the job you've applied for requires extraordinary physical health and you had to perform an MRI of the spine before you'd be considered for the position. The MRI confirmed an vertebral disk protrusion, but the protrusion is not big enough to cause any pressure on the spinal nerve(s), which explains why you feel no pain. However, if the job requires excessive spine efforts, the condition may become worse over time and you may start feeling pain.

There is no way you can improve the MRI-report. You can only try to prevent any worsening of the disk protrusion by avoiding hard labor and practicing exercises for strengthening the spine muscles (such as swimming, Pilates, or yoga). Surgery is not used for treating such asymptomatic conditions but can eventually be treated surgically if symptoms present themselves.