The Zonal Organizational structure of Signal Engineers is headed by HAG/SAG grade IRSSE officer designated as PCSTE (Principal Chief Signal & Telecom Engineer) who is assisted by various SAG officers designated as CSE (Chief Signal Engineer), CCE (Chief Communication Engineer), CSTE (Planning), CSTE(Projects) and CSTE(Construction) and SG/JAG, SS & JS grade officers designated as Dy CSTEs, SSTEs and ADSTEs. In ex-cadre establishment, the General Manager, Addl.GM, SDGM, Secretary, CPRO posts are also ex-cadre, and an IRSSE Engineer may occupy these posts also. The post of CSO(chief Safety Officer) has also been made ex-cader for Technical and Traffic Officers in Indian Railways, and on-time, two of the posts of CSO in two Zonal Railways are for S&T cadre.
The organizational hierarchy of Signal Engineers is led by a PCSTE, who is supported by various SAG officers holding titles such as CSE, CCE, and CSTE, as well as SG/JAG, SS & JS grade officers designated as Dy CSTEs, SSTEs, and ADSTEs. Ex-cadre establishments also have senior roles, including General Managers, Additional General Managers, Senior Divisional General Managers, Secretaries, and other positions that can be held by an IRSSE Engineer.