Shahin was awarded Fellowship in Anatomical Pathology in 2014 and commenced work at a private skin pathology lab in Brisbane where he proceeded to become the medical director/supervising pathologist in 2019. As the head of a busy skin Pathology lab in Queensland, he gained vast experience in neoplastic skin pathology including melanocytic lesions and was also responsible for the training of his junior colleagues in the department. In 2022, Shahin joined Kossard Dermatopathologists.
Shahin has a keen interest in melanocytic pathology, including clinical-pathological correlation of dermoscopic features, having obtained his diploma of dermoscopy form Skin Cancer College. He is currently collaborating with Professor Kossard to create a digital archive of educational and interesting cases in dermatopathology.