It says there are still "high levels of uncertainty" as to when trade will regain pre-pandemic volumes.
The firm is consulting with staff to try to find roles in other parts of the business for those facing redundancy.
Costa Coffee said the decision to cut jobs was an "extremely difficult" one to make.
"Our baristas are the heart of the Costa business and I am truly sorry that many now face uncertainty following today's news," said Neil Lake, managing director for Costa Coffee UK and Ireland.
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The company is suggesting the role of assistant store manager will be removed in branches across the UK.
Most of its UK coffee shops that were closed during lockdown have now reopened, but the impact of Covid-19 remains "challenging", the company said in a statement.
Despite benefiting from measures such as the government's cut in VAT for the hospitality industry and the "eat out to help out" scheme, the company said, "there remain high levels of uncertainty as to when trade will recover to pre-Covid levels".
It added that it had already frozen all pay increases within its support centre and cut all non-essential expenditure.
The chain has a branch in Scarborough, Bridlington and Whitby.