Long-serving Tui Group HR director Jacky Simmonds is standing down following the merger with Hanover-based Tui AG.
Simmonds has been with the organisation in its various guises for 15 years.
Since joining First Choice Holidays in 2000 she has held a number of senior HR roles, including HR director for Tui UK & Ireland.
She played a leading role as part of the integration team for the merger with Thomson in 2007. Simmonds was promoted to Tui Travel Group HR director in 2010.
She has also worked closely with group deputy chief executive Johan Lundgren and its mainstream board as it implemented a “change and transformation agenda” across source markets.
A company statement said: “After careful consideration, Jacky Simmonds has concluded that she does not wish the next stage of her career to be within an AG environment and, therefore, as a result will leave the business at the end of May.”
Simmonds said: “I have been very fortunate to work in a group that has moved from being a UK-focused company to a truly international business which has successfully grown both in terms of profitability and opportunities for career advancement.
“I have thoroughly enjoyed playing a significant role in the development of both the business and talent across the group coupled with building best practice within the HR function.
“I will miss the Tui Group but believe that now is the right time for me to seek my next challenge in the UK PLC arena.”
Group chief executive Peter Long added: “I am very sorry that Jacky will be leaving the Tui Group.
“The organisation has undergone significant change over the years and I strongly believe that her experience of leading HR in a FTSE100 company, coupled with her expertise in transformational change was critical in the lead up to and immediate post completion of our merger.
“She has contributed greatly to what Tui Group is today, has built a strong team and I have always valued her counsel, advice and pragmatic approach during these periods of transformation. I would like to wish Jacky every success in her new endeavours.”