Commercial Fixed Wing
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 46; Flight Crew Total 9140; Flight Crew Type 3035
Situational Awareness
Aircraft Equipment Problem Less Severe
General Maintenance Action
Aircraft; Environment - Non Weather Related; Human Factors
Had a BRAKES auto brake fault ECAM on landing. Taxi to gate was normal. Autoparked Gate X. Set parking brake and realized immediately that the aircraft was slowly moving. Applied normal brakes to stop aircraft. Reapplied parking brake. Ground crew gave us the chalks in signal. It pains me to write this because I am a brake pressure fanatic; but since this was my first trip in over 2 months; my scan was rusty; and I didn't verify the brake pressure; and this happens. Pressure was definitely normal with the second parking brake attempt. Sent report and called maintenance.
During the short taxi in from Runway XX in ZZZ to Gate X (less than 3 minutes) we parked the aircraft with both engines running since we were still within the 3 minutes cool down period. As the Captain set the brake; and before he can verbalize 'Brake Set' the aircraft began to move forward. The Captain immediately stepped on the pedal brakes and stopped the aircraft. Prior to landing we received a ECAM message 'AUTO BRAKE FAULT' which went away after a few seconds.  After landing we had normal braking and steering. At the time we didn't think anything of it; but after we reset the brake after the movement at the gate we thought they might be connected.  We reported it and called maintenance.
Air carrier flight crew reported a brake issue on landing and re-occurring at the gate. Captain stated lack of flying was a contributing factor.