Davis will lead a seven-strong team reporting to county fire officer Barry Dixon and deputy county fire officer Tony Proctor. She joins from Manchester-based IT firm NCC Group where she was marketing communications manager.
Her post was created following several reports that highlighted the need to boost communications as the service faces its biggest upheaval in 50 years.
While new legislation aims to modernise the fire service, the Fire Brigades Union is balloting members this week on strike action over stalled wage increases.
Davis has been brought in to improve how the Manchester service – which covers 41 stations – communicates internally and externally.
She said: ‘Change is unsettling for everyone and puts even more emphasis on the need to communicate effectively.’