Barclays is set to cut its IT workforce through a mixture of redundancies and laying off "under- performing" staff.
Barclays said the planned job cuts would affect those staff who do not possess the skills to "best serve our customers going forward" although it would not say which skills it was looking to jettison.
The bank applies a ranking system to the performance of all senior staff by grading individuals between A and D. It is believed those IT workers who received the lowest grade in the bank's last performance review are most at risk.
Howard Hymanson, head of employment law at Tarlo Lyons, said dismissing employees for underperformance was made more straightforward for Barclays by the redundancy context.
Where redundancies are being made, employers are not required to monitor the performance of a struggling employee prior to laying them off, whereas ordinarily more opportunity to improve individual performance would need to be offered, he said.
A spokesman for trade union Amicus said, "We are consulting with Barclays as part of their review of IT services. Barclays' IT audit has identified skills shortfalls and we are working with them to ensure that retraining and upskilling opportunities are pursued."