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Careers in MSD
​​​​​​​Brinny, Ireland
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​​​​​​​We are a leading facility for the development, testing and manufacturing of new biologics and vaccines

A number of new roles are being created in Brinny as a result of increased global demand for MSD medicines and vaccines which will also see the site further expand its production facilities and capacity to meet this demand. 

Get motivated by the work that we do at MSD Brinny
Our site in Brinny, Co. Cork has been a vibrant part of the pharmaceutical sector in the South-East region for over 35 years. With a successful legacy of developing and commercially supplying biotech products including some of MSD’s most successful treatments, Brinny is now specialising in the development and manufacture of innovative novel vaccines and testing of immuno-oncology medicines.
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Discover a path of inventiveness and meaningful challenges
The Brinny site has been a vibrant part of the local Innishannon community for nearly 35 years and is now one of the region’s largest employers.
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Our sites

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Ballydine
First established in 1976, MSD Ballydine develops and supplies the active ingredients and final formulated product for a range of innovative medicines at its manufacturing and R&D facilities. MSD’s first site in Ireland, the Ballydine site is MSD’s primary small molecule pipeline commercialisation facility globally, operating as a European hub for quality, manufacturing, and engineering. Its highly skilled teams leads the way in the development of new medicines, including innovative treatments for Hepatitis C, HIV and immuno-oncology, the site exports to over 25 countries around the world.
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Carlow
The MSD Carlow site broke ground in 2008 and is a filling site for the launch and commercial supply of vaccines, biologics and small molecule drug product. Since its initial launch, the site has attracted significant internal investment and is now home to a number of state of the art production facilities, laboratories and temperature controlled warehousing units. The Carlow site is a significant employer in the South East region and attracts high performing talent through close collaborations with universities and colleges in the region.
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Red Oak North in Dublin
Red Oak North in Dublin is our commercial Head Office for our Animal Health and Human Health businesses in addition to several global and national support services including Clinical Research, Medical Affairs, Regulatory Affairs, Sales, Policy & Communications and Marketing.
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Biotech, Dublin
MSD Biotech, Dublin began construction in 2018 and has progressed at an impressive rate since then.  The site plays a pivotal role in the manufacture of MSD’s biologics-based medicines, including immuno-oncology, and it has expanded MSD’s current internal network of biologics drug substance manufacturing plants since full manufacturing operations began in 2021.
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Dunboyne
The latest addition to the MSD Ireland family is MSD Dunboyne which joined our network in September 2020. Our Dunboyne site is MSD’s first Biologics Drug Substance Single Use Commercialisation Facility, playing an important role in helping to commercialise key medicines as the newest addition to the MSD network. The cutting-edge innovation and collaboration between MSD Dunboyne’s research and manufacturing teams will significantly accelerate the time it takes to bring a medicine to market for the benefit of patients around the world.
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