Performed scheduled and unscheduled maintenance tasks, removal$/$installation and troubleshooting of Avionics components, Avionics System Configuration, Harness Routing, Software Loading and Updating, Operational and Functional Check of Avionics Systems, Cabin Internet connectivity system, IFE systems and Airframe parts of an aircraft on B$737$ NG and MAX, B$767,$ B$777,$ B$787$ Q$400$ and A$350$ aircrafts? change intrior mechanic