US and Irish companies plan to create around 800 new jobs in the capital.
The announcements are a sign that there is no let-off in overseas investment, despite recent criticism of our tax system by foreign governments.
LinkedIn - a successful and fast-growing social network for business people - plans to double its workforce to 1,200 after buying a massive new headquarters in the capital.
It is understood that the business network site is investing in the region of €90m to bolster its presence here.
"Dublin is now home to a very vibrant digital technology sector," said Sharon McCooey, senior director with LinkedIn Ireland. "With that comes an important ecosystem for companies like ours, as well as the strong pool of talented digital professionals that we need access in order to further grow our operations in the future."
Microsoft, which has had operations in Dublin since the 1980s, plans to add another 100 graduates and interns to its staff here.
The company is recruiting for a broad range of positions, including programme managers, sales people as well as legal and marketing positions.
While US companies had the biggest announcements yesterday, Irish financial software company Fineos also revealed plans to hire 50 people as it invests €9m in research and development at the East Point business park in the capital.
Fineos is looking to fill "consulting positions to help our customers around the world", said founder Michael Kelly.
The 21-year-old company employs about 450 people at present and will take on new staff over the next 18 months.
"Fineos is a great example of an Irish company with a world-class product offering performing strongly in highly-competitive global markets and employing large numbers of high-skilled people in Dublin," said Enterprise Minister Richard Bruton at the investment announcement.
While most of the jobs revealed yesterday were in technology, recruitment companies are also having a good time.
Brightwater Recruitment said it may hire up to 50 new staff in Dublin, Cork and Belfast.
Managing director David Bloch said Brightwater was hiring thanks to strong demand for jobs in the information technology, banking, legal, human resources and office support sectors.