Manufacturing firm Valeo is creating 140 full-time jobs at its plant in Tuam, Co Galway.
The French-owned company manufactures safety camera systems for cars and is the biggest employer in Tuam.
The jobs at Valeo Vision Systems are a major boost for Tuam, which has a high unemployment rate.
Most of the jobs will go to people on short-time working arrangements at the plant.
The expansion will bring the numbers working full-time at the firm to more than 650.
The jobs will be in manufacturing and research and development.
Tuam Municipal Authority Chairperson Councillor Peter Roche said news of these jobs was a welcome economic boost.
Elsewhere, two companies in Dublin and Longford are creating 100 jobs in the IT and manufacturing sectors.
C&D Foods, which was once owned by former Taoiseach Albert Reynolds, has announced that it is creating 70 jobs as part of a €15m investment at its pet food plant in Edgeworthstown, Co Longford.
Mr Reynolds's son Philip still runs the business with Larry Goodman acting as a major shareholder.
The new pet food pouch manufacturing facility is an extension to the plant that was built in 2007 following a major fire and is the biggest of its kind in Europe.
It will produce pet food pouches for many of Europe's leading own label brands.
In Dublin, Ammeon is creating 30 high-skilled jobs and is looking for both experienced IT professionals and graduates for the positions in software development and test automation.
Minister for Jobs, Enterprise and Innovation Richard Bruton is visiting both sites this morning.