Monaghan-based Irish HomeCare is creating 750 jobs, with the new positions including carer roles, managers, nurses and administrative support.
The company already employs 750 people and this announcement will mean a doubling of the workforce, as it recruits for the new roles over the next 18 months.
Irish HomeCare provides a range of care and support services to enable people to live at home independently safely and with dignity for as long as possible.
It said 700 of the jobs are flexible carer roles. The remaining 50 roles are full-time positions, including nurses, managers and administrative support.
Irish HomeCare is also opening a new Dublin base in Park West. The positions are being recruited for nationwide.
CEO of Irish HomeCare John Florence said the company has experienced a significant surge in demand for its services across the country in recent months.
"We delighted to be adding 750 new roles so that we can continue to provide the highest standards of care to vulnerable people in our society," he said.
"Through our extensive range of support services, we enable people to maintain their independence in the comfort of their own homes within their communities."
Tánaiste and Minister for Enterprise, Trade and Employment Leo Varadkar welcomed the announcement.
"These are jobs doing essential work for those that need it most, in communities all across the country," he said.