Randstad, as the EMEA Johnson & Johnson talent acquisition partner, is responsible for finding and contracting talent for the contingent roles at Johnson & Johnson. If you are selected for a role you will be engaged or employed by one of the Randstad recruitment companies in EMEA and will not be an employee of Johnson & Johnson.

Johnson & Johnson

Bioassay Associate Scientist

Posted Apr 25, 2023
Job ID: JJJP00015129
Cork, County Cork
1 year
(May 8, 2023 - May 5, 2024)
39 hrs/week
Payrate range

Associate Scientist - Bioassay

Location: Barnahely, Cork

Duration: 12 months

Hours: Shift - Week 1 (Mon Tues Fri Sat Sun) Week 2 (Wed Thurs) - 12 hour days (7am - 7pm) @ 20% shift premium

Pay rate range: Depending on experience

Imagine your next project as an Associate Scientist, working at the forefront of cutting edge work and technology with one of the leading Pharmaceutical companies in the world! Janssen Sciences Ireland UC is a member of the Johnson & Johnson Group of companies and is a pioneer in the use of mammalian cells to manufacture monoclonal antibodies at its facility in Cork.

roles and responsibilities

The person will be focused on executing bioassays and process impurity assays used in the release and stability testing of the large molecule clinical pipeline with responsibility for testing and resolution of product related  issues in support of  the Bioassay and New Modalities Stability Sciences team. This will involve: 

  • Routine release and stability testing of binding assays (e.g. ELISA and TR-FRET), cell based bioassays (e.g ADCC assays), process impurities and identity assays for pre-clinical and clinical product development.

  • Execution of  process impurity assays (e.g. residual host cell protein (HCP), residual DNA (PCR techniques) and residual Protein A).

  • Completion of documentation in adherence to GMP.

  • Testing to support assay validation/qualification and other studies.

  • Laboratory support activities (e.g. reagent qualification), routine passaging of cell lines and general housekeeping.

  • Support other projects as assigned, e.g. continuous improvement, automation and operational excellence

  • Support troubleshooting and investigations.

  • Perform Data Trending to support investigations, demonstrate method capability and product profile.

  • Write SOP’s, protocols, work instructions and training modules. 

  • Other duties as assigned by team lead.

how to succeed

The successful candidate will have the ability to work well within team structures and provide leadership and will be results and performance driven. They will show initiative and be passionate to learn and grow. They will also bring:

  • A minimum of a Degree in Molecular Biology, Biochemistry, Pharmacy or related scientific field is required.

  • At least 6 months GMP lab experience

  • Familiar with applicable cGMP and other business compliance regulations

  • Knowledge of computer programs such as MS Word, Excel and Minitab advantageous 

  • Good understanding of quality and attention to detail.

  • Must have some sort sort lab based experience


This role offers a very competitive hourly rate. This contract will run for 12 months.

you are welcome here

Janssen is working to create an inclusive environment where diverse backgrounds, perspectives, and experiences are valued and each and every one of our people feels that they belong and can reach their potential. No matter who they are.

about Janssen

Janssen is the Pharmaceutical Companies of Johnson & Johnson - the world's most comprehensive and broadly-based healthcare Company. At Janssen, we bring together top scientists and researchers to pursue the most promising science and drive collaboration to create visionary medicines and healthcare solutions covering five priority therapeutic areas - Cardiovascular & Metabolism, Immunology, Infectious Diseases & Vaccines, Neuroscience and Oncology. Contribute to the next pharmaceutical breakthrough with your next project at Janssen. 

Janssen UK: https://www.janssen.com/uk/

Janssen Ireland: https://www.janssen.com/ireland/

application process

We are looking to process the first round of applications within the next 2 working days.

We do not accept applications via email. The pay rate for this role will depend on how you are paid. PAYE, LTD & Umbrella options are available. 


If you would like some additional information about the role please contact: simone.strong@randstadsourceright.co.uk

Diversity, Equity & Inclusion

For more than 130 years, diversity, equity & inclusion (DEI) have been part of our cultural fabric at Johnson & Johnson and woven into how we do business every day. Our commitment to respect the dignity and diversity of all is embedded in our Credo.

We know that the success of our business depends on having the best talent in a workforce that reflects the diverse markets we serve around the world and an inclusive culture that values different perspectives and life experiences. That is why we are working to create an inclusive environment where diverse backgrounds, perspectives and experiences are valued and each one of our people feels that they belong and can reach their potential. No matter who they are. Diversity, Equity & Inclusion at Johnson & Johnson means “You Belong”.

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