Johnson is an experience business leader and board member, previously holding senior roles at AIG, Voya Financial and Protective Life Corporation.

In her last executive management role, she was chief transformation officer at AIG where she successfully led an ambitious modernisation programme. 

She was appointed to the board in June 2022 and was subsequently appointed as the designated workforce director in April 2025.  She has extensive knowledge of the insurance and financial services industries following a 30-year executive career in the United States with deep experience in the life insurance market.

She stood down from this role in 2020 to concentrate on building her non-executive portfolio, She served on the board of Legal & General Group and is a member of their audit, risk, and nominations committees. She also serves on the Board of Kuvare, a private insurance holding and asset management company.