All eight have previous experience working for major retail banks.
In most cases, their move to Swansea Building Society has come about due to redundancy because of branch closures made by previous employers.
Alun Williams, chief executive, Swansea Building Society, said: “We are delighted to welcome all eight new members of staff to the Swansea Building Society team.
“The increase in staff numbers has been necessary – and been made possible – because of our success over the last 12 months.
“I believe this success has been brought about as the culmination of several years of investment, the dedication of our staff, and our commitment to our ethos of opening and not closing branches.
“While other well-known high-street financial names are shutting offices and cutting back on staff, Swansea Building Society is expanding its workforce and opening not closing branches.
“As well as this, we have also implemented several technological adaptations designed solely with the aim of allowing more flexibility for our customers.
“Whether a customer decides to deal with us in person at a branch, by telephone, by post or online, the service they receive will be the same – friendly, informed, personal, professional and welcoming.”