Review design packages, technical studies, specifications, construction packages, and contractor submittals for the assigned discipline (such as load flow, short circuit, grounding, and protection studies for traction power; catenary layouts, wiring plans, and clearances for OCS; or network designs and radio coverage studies for communications), and track comments through to closure. Provide technical oversight of wayside communications systems, including fiber optic backbone and IP/MPLS networks, operations control center communications, maintenance and wayside radio, dispatch, public address, CCTV transport, and cybersecurity interfaces.