6d ago

Principal Scientist, Microbiological Quality & Sterility Assurance

IrelandIreland·Limericklead
OtherPrincipal
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Quick Summary

Overview

At Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured,

Technical Tools
OtherPrincipal

At Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured, where treatments are smarter and less invasive, and solutions are personal. Through our expertise in Innovative Medicine and MedTech, we are uniquely positioned to innovate across the full spectrum of healthcare solutions today to deliver the breakthroughs of tomorrow, and profoundly impact health for humanity. Learn more at jnj.com.

As guided by Our Credo, Johnson & Johnson is responsible to our employees who work with us throughout the world. We provide an inclusive work environment where each person is considered as an individual. At Johnson & Johnson, we respect the diversity and dignity of our employees and recognize their merit.

Quality

R&D/Scientific Quality

Professional

Limerick, Ireland

About MedTech

Fueled by innovation at the intersection of biology and technology, we’re developing the next generation of smarter, less invasive, more personalized treatments.

Your unique talents will help patients on their journey to wellness. Learn more at https://www.jnj.com/medtech


Responsibilities

~5 min read

 

R&D:

  • →Core team member as required for NPI, selection of modalities, business case development, screening/feasibility cycle support, , protocol and report writing, liaise with Regulatory Affairs on potential requirements for submission.
  • →Drive new contract sterilisation site validation - on site visits, cycle development, process characterization, process validations, protocol and reports, regulatory affairs support for submissions, and questions from regulatory bodies.
  • →Support the development of new innovations in the area of contamination control and terminal sterilization, to include such activities as interaction with universities, internal and external experts, participating in development of new products.
  • →Work directly with the Technical Vertical MQSA Leaders to find break-through technologies to enable future growth and innovations.
  • →Work directly with the packaging leaders to define package needs for terminal sterilization and/or aseptic processing, and validation of the primary packaging, review and approval of protocols and reports as SMEs.
  • →Work directly with the biocompatibility and chemistry to support the impact of sterilisation on Biocomp and chemistry requirements for terminal sterilization and/or aseptic processing, and validation of the NPI, review and approval of protocols and reports as SMEs.
  • →Life cycle management of aseptic processing, microbiological and/or sterilization process for product portfolio within Johnson & Johnson Vision.
  • →Support and drive the Technology Strategy for Johnson & Johnson Vision.
  • →Partner with R&D and drive sterility assurance strategy for new product development to include the BCP and environmental footprint for sterilization and contamination control.
  • →Where applicable, own and drive test method development, validations and transfer including review and approval of protocols and reports as SMEs.

Plan:

  • →Support for the selection of new manufacturing operations (to include aseptic processing manufacturing sites, contamination control strategy, review of site competencies, contract sterilization, contract laboratories, external manufactures, critical suppliers and third-party manufacturers).
  • →Review and SME input of quality agreements for sterilisation contracts, EMs, contract labs etc.
  • →Site visits as required and requested, audit support and follow up post audit to drive compliance.

Source:

  • →Mandatory involvement in due diligence for sterile or microbiologically controlled manufactured products, and provide technical SME support for integration into J&J.
  • →Provide technical SME support for procurement activities that relate to sterile or microbiologically controlled products that are externally manufactured.
  • →Provide input in the design of new manufacturing processes, controlled environments and packaging from a microbiological and terminal sterilization standpoint.
  • →Input for the design of water systems and the design of controlled environments and cleanliness control strategies.
  • →Support change control and process improvements, cost avoidance projects, BCP, increased capacity.
  • →Mandatory involvement in sterilisation, microbiology, cleanroom and utilities procedure updates.
  • →Microbiological/chemical, new equipment and test method validations – input, protocol/report review and approval.
  • →Standard gap assessments completion and support for gap closure.
  • →Kaizen support, core team members for site issues.
  • →Investigation support for sterilisation/microbiology/utilities/cleanroom, sterility issues.
  • →Regulatory Affairs support for site changes/notifications.
  • →Improve on- site core competencies for sterilisation/microbiology/utilities/cleanroom, sterility issues.
  • →Regulatory and internal audit readiness program support for on site audits, including site walkabouts.
  • →Support on site external and internal regulatory audit visits, presentation to site auditors support and follow up post audit to drive compliance.
  • →Support for onsite GEMBA walks of cleanrooms and manufacturing areas.
  • →Support for Sterilisation/Environmental/Utility annual revalidation activities – requirement definitions, protocols and reports.
  • →Support for escalations, RMB, QRB.

Make:

  • →Maintain close involvement/alignment with the R&D organization to develop technical competencies for future products.
  • →Maintain close involvement/alignment with the Make Organization manufacturing sites, with a pro-active scan from a sterility risks standpoint and drive remediation if required, and to establish long-range microbiological quality & sterility assurance strategies for Johnson & Johnson Vision products.

Deliver:

  • →Support the ongoing initiatives regards the validation and improvement of primary sterile products/finished goods (end to end process) that meet the needs of distribution system and delivery of sterile or microbiologically controlled product to the patient and/or consumer.

External Influencing:

  • →Actively network with the internal and external scientific, technical and regulatory community to maintain state of the art knowledge.
  • →Represent the corporation at industry and standards associations (e.g., AAMI, ISO, or PDA), influencing regulations and standards.
  • →Actively participate in the MQSA councils, AAMI working groups, support regulatory/Microbiological/Sterilisation conferences, MQSA community meetings, town halls.
  • →Work with universities to develop a relationship that allows for the opportunity to develop next generation of J&J employees from a microbiological quality and sterility assurance viewpoint.

Internal Influencing:

  • →Represent MQSA on the Design to Value/Manufacturability Teams.
  • →Execute programs to develop/train/maintain MQSA competencies across the organization for new hires, as well as current/next generation sterility assurance professionals.
  • →Activity engage and shape MQSA councils and community of practices.
  • →Support for defining the contamination control strategy and support for ongoing compliance and sustainability.

The Principal Scientist of Johnson & Johnson Vision, will own the technical areas including: Aseptic Processing validation, sterilization validation (e.g., EO, gamma, electron beam, moist heat, and dry heat processes), Microbiological testing to support the validation and maintenance of the sterilization processes and product label claims (e.g., bioburden, tests of sterility, BET), Environmental control and monitoring, Water systems validation, Sterility assurance support to new product development and launch, Compliance to applicable regulations and standards in the subject areas of sterility assurance and laboratories, Inspection and submission support and Health based risk assessment.

 

Requirements

~1 min read
  • An undergraduate (BS) degree with Microbiology, Biology, Engineering or related discipline is required; an advanced degree, MS or PhD, is preferred.
  • A minimum of 10 years of experience in the medical device or pharmaceutical industry with a GMP and/or ISO regulated environment is required.
  • Competent in using computer software such as Excel, Word and PowerPoint, and analytical software.

 

 

 

Nice to Have

~1 min read
Agility Jumps, Coaching, Collaboration, Compliance Management, Continuous Improvement, Data Savvy, Process Improvements, Product Strategies, Quality Control (QC), Quality Control Testing, Quality Management Systems (QMS), Quality Standards, Regulatory Environment, Researching, Standard Operating Procedure (SOP), Technical Credibility, Training People

  

 

€70,100.00 - €121,210.00

 

 

What We Offer

~1 min read

In addition to base pay, we offer the following benefits*: an annual bonus with set target (% of pay) depending on pay grade / location, where the actual amount is based on the employees’ and companies’ performance of the previous calendar year, or sales commissions. Moreover, we offer vacation days, parental leave for a minimum of 12 weeks, bereavement leave, caregiver leave, volunteer leave, well-being reimbursement, programs for financial, physical and mental health. We also offer service anniversary and recognition awards, and subject to the terms of their respective plans, employees - and in some location’s eligible dependents - can participate in several insurance plans. For more information, visit Employee benefits | Supporting well-being & career growth | Johnson & Johnson Careers.

 

*This is for informative purposes only. Amounts and actual benefits may vary by location and are subject to change.

 

 

Location & Eligibility

Where is the job
Limerick, Ireland
On-site at the office
Who can apply
Open to applicants worldwide

Listing Details

Posted
October 1, 2026
First seen
October 1, 2026
Last seen
October 6, 2026

Posting Health

Days active
5
Repost count
0
Trust Level
33%
Scored at
October 7, 2026

Signal breakdown

freshnesssource trustcontent trustemployer trust
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Principal Scientist, Microbiological Quality & Sterility Assurance