Probably its T4 SYNDROME.. Go for dry needling, myofascial release, and deep muscle manipulation

U need to visit an orthopaedic first since ur back pain is severe with burning sensation near shoulder joint which will need investigation like an xray.kindly do not neglect the pain even if u get it occasionally which means back pain aggravating in certain postions and actions which needs diagonosis with xray

As your profession depends lot of sitting and typing..dat stress the upper back ,shoulder and arm..poor posture like forward neck can increase the demand on upper back which leads to muscle imbalance..As information gicen by you are insufficient fir proper diagnosis..you need a conprehensive assessment from ortho or physio..As burning sensation (usually related to some nerve pressing) can be coz of many reason like cervical radiculopathy , cervical spondylosis, myofascial pain ( trigger point. or some gym or sports injury etc.As treatment depend on diagnosis so suggest you get it check soon.will advice you to be posture aware especially while working on computer and driving..Avoid sitting for long hours ; in between take frequent breaks.avoid neck bending foe ling hours..check your sleeping posture.avoid lifting weights..Do upper back stretchung and conditioning exercises under physiotherapist guidance. thanks take care