The move means that approximately one in six of the asset manager's 542 UK staff could lose their jobs.
The company has launched a consultation with staff on the redundancies and will defer any final decisions until the consultation is completed.
The company said it had undertaken a “widespread review” of its operating model and was cutting back on staff numbers to “position the business for future growth.”
The review follows its takeover of fund manager rival Merian last year when it warned of redundancies at the time.
Jupiter said the past 12 months have been a “challenging” year for markets and companies although Jupiter had been “resilient” in the face of the global pandemic and had successfully integrated Merian.
Last July Jupiter announced in interim figures that the impact of the Coronavirus pandemic had cut pre-tax profits by 50% to £40.8m. Assets Under Management had also declined from £45.9bn June 2019 to £39.2bn in June 2020.
Jupiter CEO Andrew Formica said: “To succeed in a rapidly changing environment, it is important to focus on the activities which enable us to best serve our clients. We have an unwavering commitment to achieving this by continually striving to improve the way in which we operate.
“Jupiter has what it takes to meet the challenges ahead, and to make the most of opportunities to generate growth in a competitive landscape. To do this we must be an agile business, and these structural changes allow us to continue to work towards delivering on our strategic goals.
“The decision to implement these changes was not taken lightly, especially in this difficult environment, as it will unfortunately mean some roles will no longer be required. We understand the impact this uncertainty will have on our staff and will provide as much guidance and support as we can throughout this process.”
• Editor's Note 28.01.21: Story updated to make clear that 'up to 90 jobs' may go (subject to consultation) and that Jupiter's total UK staff numbers are currently 542, meaning approximately 1 in 6 roles could be made redundant, not 1 in 5 as originally stated. Apologies for the errors.