Johnson & Johnson Posted July 23, 2026

Postdoctoral Scholar, Cell Therapy

Cambridge, United States Full time
Drug Discovery & Preclinical Research Intern/Fellow/Postdoc

Johnson & Johnson is the source of truth for this posting and owns the application process. We surface normalized context and market comparison you won't find on the original listing.

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:

Career Programs

Job Sub Function:

Post Doc – Drug Discovery & Pre-Clinical/Clinical Development

Job Category:

Career Program

All Job Posting Locations:

Cambridge, Massachusetts, 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 https://www.jnj.com/innovative-medicine

We are searching for the best talent for a Postdoctoral Scholar, Cell Therapy to be in Cambridge, MA.

Purpose:

This postdoctoral position will focus on developing optimized flow virometry techniques and workflows for therapeutic tLVVs with the goal of developing reproducible single-particle measurements and understanding whether these measurements predict tropism, functional potency, and safety in preclinical models.

In this position, the Postdoctoral Scholar, Advanced Flow Virometry, will develop and apply flow virometry methods to characterize targeted lentiviral vector quality attributes for in vivo applications. The role focuses on generating reproducible single-particle measurements, comparing flow virometry with established analytical methods, linking particle phenotypes to transduction, potency, and safety outcomes, and building cross-functional scientific insight that supports analytical and process development in cell and gene therapy.  The scholar will interpret complex data sets, collaborate extensively with complementary internal teams, and communicate findings in scientific and cross-functional forums.

You will be responsible for:

Design, optimize, and execute advanced flow virometry workflows to characterize targeted lentiviral vector particle heterogeneity, envelope integrity, aggregation, and contaminant extracellular vesicles at the single-particle level.

Perform comparative analytical studies against established methods such as Western blot, DLS, SEC-MALS, ELISA, and density gradient approaches, and generate validation data sets that assess agreement, specificity, and reproducibility of flow virometry measurements.

Correlate particle phenotypes with functional outcomes, develop statistical models linking analytical measurements to transduction and potency, and communicate results through group meetings, cross-functional forums, internal scientific showcases, and external scientific conferences as appropriate.

Development, training, conferences, internal meetings, and symposia

Qualifications:

PhD in Virology, gene therapy, flow cytometry/flow virometry, analytical development relevant to role, bioengineering, biotechnology, or related discipline with 0-1 years of experience is required.

Expertise in virology, analytical characterization, bioengineering, cell biology, biotechnology, or a related scientific discipline relevant to viral vectors and single-particle analysis

Position will require generation, use, and testing of lentivirus particles.  Applicants should be comfortable working in BSL2+ laboratory conditions

Demonstrated ability to design experiments, analyze complex data, and compare emerging analytical methods with established assays using scientifically rigorous approaches.

Ability to work effectively across cross-functional teams and communicate scientific concepts and results clearly to technical and non-technical audiences.

Experience with statistical interpretation, correlation analyses, and data-driven problem solving in a research environment.

Strong written and verbal communication skills, with the ability to present findings in internal meetings, scientific forums, and conference settings.

5% travel expected

Preferred Knowledge, Skills and Abilities:

Experience with flow cytometry is highly preferred

Experience with enveloped viruses, enveloped viral vectors, or related, relevant modality preferred

Experience with single-particle characterization methods, lentiviral vector biology, or assay validation a plus.

Model-building experience helpful

Experience in gene therapy, viral vector analytics, virology, or biopharmaceutical analytical method development welcome but not required.

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 and 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, please email the Employee Health Support Center (ra-employeehealthsup@its.jnj.com) or contact AskGS to be directed to your accommodation resource.

Required Skills:

Preferred Skills:

The anticipated base pay range for this position is :

$79,000.00 - $127,650.00

Additional Description for Pay Transparency:

Subject to the terms of their respective plans, employees are eligible to participate in the Company’s consolidated retirement plan (pension) and savings plan (401(k)).

Subject to the terms of their respective policies and date of hire, employees are eligible for the following time off benefits:

Vacation –120 hours per calendar year

Sick time - 40 hours per calendar year; for employees who reside in the State of Colorado –48 hours per calendar year; for employees who reside in the State of Washington –56 hours per calendar year

Holiday pay, including Floating Holidays –13 days per calendar year

Work, Personal and Family Time - up to 40 hours per calendar year

Parental Leave – 480 hours within one year of the birth/adoption/foster care of a child

Bereavement Leave – 240 hours for an immediate family member: 40 hours for an extended family member per calendar year

Caregiver Leave – 80 hours in a 52-week rolling period10 days

Volunteer Leave – 32 hours per calendar year

Military Spouse Time-Off – 80 hours per calendar year

For additional general information on Company benefits, please go to: - https://www.careers.jnj.com/employee-benefits

Job details

Seniority
Intern/Fellow/Postdoc
Function
Drug Discovery & Preclinical Research
Therapeutic area
Not listed
Location
Cambridge, 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 62 comparable Intern/Fellow/Postdoc Drug Discovery & Preclinical Research roles across 17 biopharma companies.

62Comparable roles tracked
56Currently active
17Companies hiring similar roles
7Countries represented

Salary context

21 of 62 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 $79,000/yr – $127,650/yr
Lowest disclosed · Associate Scientist I/II, In Vitro Pharmacology · AbbVie $58,656/yr – $99,000/yr
Highest disclosed · Advisor – In Vivo CAR Discovery · Lilly $138,000/yr – $224,400/yr
Peer group range $78,828 – $181,200 (median $90,600)

Where these roles are based

Top locations among the 62 comparable roles

United States54
Germany3
Netherlands1
Spain1
Switzerland1
India1

+ 1 more countries

Seniority mix

62 of 62 peers have a known seniority level

Intern/Fellow/Postdoc39
Associate23

Therapeutic area mix

10 of 62 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Neuroscience4
Oncology3
Cardiovascular / CVRM2
Immunology1

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The closest matches from our peer group, ranked by how similar they are, not how well you'd qualify for them -- treat this as market context, not a guaranteed shortlist; a weak match is labeled as one below.

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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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Function Therapeutic area Seniority Country
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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.