Original sentence: He has held a variety of the IT industry's most senior positions, including as Microsoft's lead technology policy and strategy advisor; as Head of Business Systems for the UK’s chief financial services regulator in the City of London; as an Officer of the House of Commons, where he pioneered the Parliamentary data and video network at the Houses of Parliament, as well as putting Parliament on the World Wide Web; and as a Director of IT in the National Health Service
Edited sentence: He has held a variety of the IT industry's most senior positions, including as Microsoft's lead technology policy and strategy advisor; as Head of Business Systems for the UK’s chief financial services regulator in the City of London; as an Officer of the House of Commons, where he pioneered the Parliamentary data and video network  at the Houses of Parliament, as well as putting Parliament on the World Wide Web ; and as a Director of IT in the National Health Service