Johnson & Johnson Posted October 16, 2026

Senior Scientist

Gurabo, United States Full time
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About this opportunity

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.

Job Function:

Discovery & Pre-Clinical/Clinical Development

Job Sub Function:

Pharmaceutical Product R&D

Job Category:

Scientific/Technology

All Job Posting Locations:

Gurabo, Puerto Rico, United States of America

Job Description:

About Innovative Medicine

Our expertise in Innovative Medicine is informed and inspired by patients, whose insights fuel our science-based advancements. Visionaries like you work on teams that save lives by developing the medicines of tomorrow. Join us in developing treatments, finding cures, and pioneering the path from lab to life while championing patients every step of the way.

Learn more at Johnson & Johnson Innovative Medicine

We are searching for the best talent for a Senior Scientist to join our team in Gurabo, Puerto Rico.

The Senior Scientist is an experienced professional who applies scientific principles and industry knowledge to solve complex technical challenges. This role leads a diverse portfolio of assignments requiring strong judgment, problem‑solving skills, and independent decision‑making. The Senior Scientist leads and delivers medium‑ to high‑complexity projects and critical initiatives related to manufacturing, packaging, and cleaning validation. Responsibilities include conducting technical studies, leading investigations, and driving process improvement efforts. The incumbent maintains and applies expertise across key areas such as manufacturing operations, packaging processes, technology transfer, cleaning methodologies, and project management.

Key Responsibilities:

Responsible for the assessment of technical projects to develop strategy, plan and their execution. Coordinates project activities with site functional groups and other affiliates as required. May lead projects of medium/high complexity.

Initiates change controls and completes technical/validation assessments to changes owned by other functional groups.

Develops and/or reviews validation protocols in compliance with applicable standards and procedures.

Coordinate project activities and resources for the execution as per project plan.

Lead and actively participate in technology transfer activities to ensure successful and process implementation.

Analyzes physical and analytical testing results from the study to summarize results and conclusions in technical reports. Evaluates problems/deviations resulting from validation exercises and recommends resolution.

Works with other teams to address technical issues and resolve them using sound scientific reasoning and technical expertise (consults other technical experts as needed). Determines along with team, corrective and preventive actions using the appropriate root cause analysis tools. Evaluates the effectiveness of the corrective actions.

Identifying and reporting results that deviate from normal or expected results for routine and non-routine procedures and supports the resolution of the issue.

Identifies areas of process improvements and works with technical groups in the implementation. May lead process improvements initiatives depending on complexity.

Participates in regulatory audits and supports product/process requests from regulatory agencies.

Follows the Leadership Imperatives competencies based on their leadership level within the organization (Individual Leader).

Qualifications

Education:

Minimum of a Bachelor's degree required, focused degree in Biology, Microbiology, Chemistry, Engineering, or a related scientific field is preferred.

Experience and Skills:

Required:

Minimum of 6 years of relevant professional experience required; candidates with a Master’s degree or PhD may qualify with 4–6 years of demonstrated experience in Technical Services, Validation, or related technical support roles within the pharmaceutical, biotechnology, or similarly regulated industries.

Demonstrated ability to communicate effectively, collaborate cross‑functionally, and build strong working relationships.

Proficient in Microsoft Office applications; experience with project management software is preferred.

Strong working knowledge of statistical tools and data analysis techniques.

Solid technical and scientific foundation gained through a combination of education, training, certifications, and hands‑on experience, with strong functional knowledge in applicable technical areas.

Proficient in the use of controlled documentation systems, event management tools, and trending and tracking platforms.

Working knowledge of current Good Manufacturing Practices (cGMPs), applicable regulations, and validation and technical support methodologies.

Strong technical writing skills with the ability to clearly document processes, investigations, protocols, and reports.

Experience with sampling, monitoring, and testing techniques in regulated manufacturing or laboratory environments.

Demonstrated root cause analysis, troubleshooting, and diagnostic skills with the ability to apply scientific investigation methodologies.

Strong project management skills, including working knowledge of FPx principles, tools, and methodologies.

Willingness and ability to be cross‑trained across multiple functional areas.

Demonstrates leadership behaviors aligned with organizational Leadership Imperatives at the Individual Contributor level.

Preferred:

Familiarity with manufacturing process sciences, technology transfer, Quality by Design (QbD), advanced analytical technologies, Process Analytical Technology (PAT), and continuous manufacturing is preferred.

Other:

Bilingual proficiency in English and Spanish, with strong written and verbal communication skills.

There is no direct supervisory responsibilities however demonstrates accountability for deliverables, proactively manages own workload, exercises sound judgment, and takes initiative to lead activities and resolve routine issues. May provide technical guidance or mentorship to junior scientists within project teams.

Relevant education and training in one or more of the following areas: solid dosage form manufacturing and packaging; cleaning, process, and packaging validation; technology transfer; and regulatory compliance.

Ability to work a regular shift, with flexibility to support extended hours, weekends, and holidays as business needs require.

Requires up to 10% domestic and/or international travel

If you are under 18 years of age you (the candidate) may need to obtain the necessary working papers or other documentation required by state law to start the assignment, as well as get a parent’s consent for the background check

Johnson & Johnson is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, age, national origin, disability, protected veteran status or other characteristics protected by federal, state or local law. We actively seek qualified candidates who are protected veterans and individuals with disabilities as defined under VEVRAA and Section 503 of the Rehabilitation Act.

Johnson & Johnson is committed to providing an interview process that is inclusive of our applicants’ needs. If you are an individual with a disability and would like to request an accommodation, external applicants please contact us via https://www.jnj.com/contact-us/careers , internal employees contact AskGS to be directed to your accommodation resource.

Required Skills:

Preferred Skills:

Coaching, Collaboration, Critical Thinking, Drug Discovery Development, Goal Attainment, Market Research, Organizing, Pharmaceutical Sciences, Pharmaceutical Trends, Product Development, Product Strategies, Report Writing, Research Documents, Research Proposals, Scientific Research, Standard Scientific Processes and Procedures, Technologically Savvy

Job details

Seniority
Senior
Function
Drug Discovery & Preclinical Research
Therapeutic area
Not listed
Location
Gurabo, United States
Employment type
Full time

How this role compares

Computed from every other active Drug Discovery & Preclinical Research role in our database, not just this employer's listings.

We currently track 448 comparable Senior Drug Discovery & Preclinical Research roles across 53 biopharma companies.

448Comparable roles tracked
406Currently active
53Companies hiring similar roles
18Countries represented

Salary context

225 of 448 peers report a salary range (USD, annualized)

Peers share this role's job function and a matching or adjacent seniority level -- not necessarily the same therapeutic area or country.

This roleSubject Not listed on this posting
Lowest disclosed · Senior Animal Behaviorist - Primate · Labcorp $70,000/yr – $80,000/yr
Highest disclosed · Toxicology Senior Research Fellow · Vertex Pharmaceuticals Inc (US) $232,000/yr – $348,000/yr
Peer group range $75,000 – $290,000 (median $165,000)

Where these roles are based

Top locations among the 448 comparable roles

United States338
China15
India14
United Kingdom14
Belgium10
Switzerland10

+ 12 more countries

Seniority mix

448 of 448 peers have a known seniority level

Senior234
Principal171
Associate Director43

Therapeutic area mix

49 of 448 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Immunology17
Oncology14
Neuroscience13
Cardiovascular / CVRM3
Gastroenterology1
Dermatology & Aesthetics1

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Or follow a whole field: get every new Drug Discovery & Preclinical Research job in the United States, and choose locations and companies.

How we calculate "similar"

No black box, no LLM guesswork: a deterministic score built from four normalized attributes. Here's this role's own peer group at different match levels, so you can see the mechanism, not just the result.

Every comparison starts from the same 100-point budget: 25 for working in the same function, 40 for the same therapeutic area, 20 for the same or adjacent seniority, 15 for the same country. A dimension we can't confirm on both sides contributes nothing, never a guess, never a free pass.

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Unmatched or unknown dimensions score exactly the same: 0 points, never a partial guess. A role we know almost nothing about beyond its function bottoms out at 25%; it never inflates to 100% just because there's little to compare against. Seniority uses a defined ladder (Associate → Manager → Associate Director → Senior → Principal → Director → Senior Director → Executive/VP) so "Director" and "Senior Director" count as adjacent, but "Director" and "Executive/VP" do not.