Socitm decided to appoint a chief executive on the back of rapid membership growth. It is an expanding role, promoting the local government IT director's agenda within prime minister Tony Blair's drive for e-government.
Mountain was head of ICT at Liverpool City Council between 1993 and 2000. She helped drive through the creation of Liverpool Direct, country's only 24/7 council contact centre.
She now works for Socitm Consulting and has been a director of SSL, Socitm's commercial arm since its formation.
"As an ICT manager, I have found the society an endless source of support," said Mountain. "E-government offers unparalleled opportunities for local government but, equally, significant challenges for ICT managers. Socitm must manage its growth to deliver even more for members."