Yes. The Coronavirus Job Retention Scheme (CRJS) has supported furloughed employees going back to work part-time since 1 July 2020.
Your take-home pay remains the same (i.e. 80% of your wages up to a cap of £2,500, as well as your National Insurance Contributions (NICS) and pension contributions), with the split of payments being in line with the CJRS.
Your employer will be responsible for paying your wages, NICs and minimum pension contributions in line with the hours you work. The government will pay the remaining wages and contributions. You don’t need to do anything.