Complex sentence: His replacement is Penny Ciniewicz who joined the Civil Service in 1997, and since then has worked in the Department for Trade and Industry, the Cabinet Office and, prior to joining the VOA, she was Director, Knowledge, Analysis and Intelligence in HMRC.
Split into simpler sentences: His replacement is Penny Ciniewicz who joined the Civil Service in 1997, and since then has worked in the Department for Trade and Industry, the Cabinet Office. Prior to joining the VOA, she was Director, Knowledge, Analysis and Intelligence in HMRC.