Postdoctoral Fellow
$82k - $92kMerck & Co. , Inc.
Job Description Postdoctoral Research Fellow: Be part of the legacy: Postdoctoral Research Fellow Program Our Research Laboratories' Postdoctoral Research Fellow Program combines the scientific rigor and independence of academic research with the resources, expertise, and collaborative environment of a leading biopharmaceutical organization. Postdoctoral fellows work with experienced scientists, develop meaningful scientific networks, and generate research intended for publication and presentation to the external scientific community. Position Overview: The Pharmacokinetics, Dynamics, Metabolism & Bioanalytics (PDMB) organization within our company's Research Laboratories is seeking a highly motivated Postdoctoral Research Fellow to lead an innovative research project examining the molecular, biological, and analytical factors that influence viral infectivity and neutralization measurements across virus-particle platforms. The fellow will establish and characterize matched neutralization assays based on live wild-type virus, reporter virus particles, and pseudovirus approaches. The research will investigate why neutralization results may differ among platforms and virus preparations, with particular emphasis on virion maturity, particle composition, viral entry pathways, assay conditions, and data-analysis methods. The fellow will apply Design of Experiments (DOE), quantitative data analysis, and fit-for-purpose bioanalytical characterization to generate a rigorous cross-platform comparison. The resulting mechanistic insights will support development of a biology-anchored framework for selecting and interpreting neutralization assay platforms. The project is designed to explore how the resulting scientific principles may inform neutralization-assay strategies for other viral systems and vaccine research areas. This is an opportunity to conduct original, publication-focused research while developing scientific independence, strategic experimental thinking, cross-functional collaboration, and strong written and oral communication skills. The fellow will receive structured mentorship, regular scientific and career-development feedback, and support for manuscripts, abstracts, posters, and external scientific presentations. Responsibilities:
The successful candidate will be eligible for annual bonus and long-term incentive, if applicable.
We offer a comprehensive package of benefits. Available benefits include medical, dental, vision healthcare and other insurance benefits (for employee and family), retirement benefits, including 401(k), paid holidays, vacation, and compassionate and sick days. Required Skills:
Academic Research, Cell Culture Techniques, Immunoassays, Laboratory Safety, Scientific Data Analysis, Scientific Presentations, Scientific Research, Virology Preferred Skills: Current Employees apply HERE Current Contingent Workers apply HERE US and Puerto Rico Residents Only: Our company is committed to inclusion, ensuring that candidates can engage in a hiring process that exhibits their true capabilities. Please click here if you need an accommodation during the application or hiring process. As an Equal Employment Opportunity Employer, we provide equal opportunities to all employees and applicants for employment and prohibit discrimination on the basis of race, color, age, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability status, or other applicable legally protected characteristics. As a federal contractor, we comply with all affirmative action requirements for protected veterans and individuals with disabilities. For more information about personal rights under the U.S. Equal Opportunity Employment laws, visit: EEOC Know Your Rights EEOC GINA Supplement We are proud to be a company that embraces the value of bringing together, talented, and committed people with diverse experiences, perspectives, skills and backgrounds. The fastest way to breakthrough innovation is when people with diverse ideas, broad experiences, backgrounds, and skills come together in an inclusive environment. We encourage our colleagues to respectfully challenge one another's thinking and approach problems collectively. Learn more about your rights, including under California, Colorado and other US State Acts San Francisco Residents Only: We will consider qualified applicants with arrest and conviction records for employment in compliance with the San Francisco Fair Chance Ordinance Los Angeles Residents Only: We will consider for employment all qualified applicants, including those with criminal histories, in a manner consistent with the requirements of applicable state and local laws, including the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance Search Firm Representatives Please Read Carefully
Merck & Co., Inc., Rahway, NJ, USA, also known as Merck Sharp & Dohme LLC, Rahway, NJ, USA, does not accept unsolicited assistance from search firms for employment opportunities. All CVs / resumes submitted by search firms to any employee at our company without a valid written search agreement in place for this position will be deemed the sole property of our company. No fee will be paid in the event a candidate is hired by our company as a result of an agency referral where no pre-existing agreement is in place. Where agency agreements are in place, introductions are position specific. Please, no phone calls or emails.
Employee Status:
Regular Relocation:
Domestic VISA Sponsorship:
Yes Travel Requirements:
10% Flexible Work Arrangements:
Not Applicable Shift:
Not Indicated Valid Driving License:
No Hazardous Material(s):
N/A Job Posting End Date:
10/12/2026
*A job posting is effective until 11:59:59PM on the day BEFORE the listed job posting end date. Please ensure you apply to a job posting no later than the day BEFORE the job posting end date.
- Develop and characterize matched dengue neutralization assays using live virus, reporter virus particles, and pseudovirus platforms.
- Apply systematic DOE approaches to evaluate critical assay parameters and their impact on performance.
- Perform fit-for-purpose assay characterization, including robustness, precision, sensitivity, reproducibility, and comparability assessments.
- Investigate biological and analytical drivers of platform differences, including virion maturity, particle heterogeneity, viral entry, assay format, reagent attributes, and endpoint calculations.
- Conduct mechanistic studies to distinguish biological from analytical and operational sources of variability.
- Generate cross-platform datasets and apply statistical methods for data quality assessment, concordance analysis, visualization, and interpretation.
- Integrate findings into a decision framework supporting biologically informed selection of viral neutralization platforms.
- Assess whether observations from dengue studies may inform broader viral vaccine research.
- Maintain rigorous experimental records and prepare protocols, methods, technical reports, and supporting documentation.
- Collaborate across virology, immunology, bioanalytics, statistics, automation, and vaccine research disciplines.
- Stay current with scientific literature and develop testable hypotheses that strengthen the research program.
- Communicate findings through internal forums, manuscripts, abstracts, posters, and scientific presentations.
- Must currently hold a PhD OR
- Receive a Ph.D. no later than spring 2027
- Ph.D. in Virology, Viral Immunology, Microbiology, Immunology, Molecular Biology, Cell Biology, Biomedical Sciences, or a related biological discipline.
- Ability to independently design, execute, troubleshoot, and interpret rigorous scientific experiments.
- Strong understanding of experimental design and statistical analysis of complex biological datasets, including evaluation of variability, sources of discordance, and development of mechanistic hypotheses.
- Research experience in virology, viral immunology, or a related field.
- Hands-on experience with mammalian cell culture and cell-based viral, infectivity, functional antibody, or neutralization assays.
- Strong scientific documentation skills, including preparation of methods, protocols, technical reports, and research records.
- Evidence of scientific productivity through publications, presentations, abstracts, or similar research outputs.
- Excellent written, verbal, and presentation skills.
- Ability to work independently and collaborate effectively within multidisciplinary teams.
- Commitment to laboratory safety, biosafety, training, and documentation requirements.
- Strong interest in publishing research and presenting at scientific meetings.
- Ability to translate experimental findings into mechanistic insights, analytical recommendations, and publication-quality scientific communications.
- Experience developing, optimizing, or characterizing virus neutralization or infectivity assays.
- Experience with one or more of the following: infectious/live-virus assays, reporter virus particles, recombinant viral particles, pseudovirus systems, or other surrogate-virus platforms.
- Experience applying Design of Experiments, multifactorial experimental design, response-surface methods, or related statistical optimization approaches.
- Proficiency with one or more scientific data-analysis environments, such as R, Python, JMP, Prism, or comparable statistical and visualization tools.
- Experience with high-throughput, automated, or imaging-based cell-assay workflows.
The successful candidate will be eligible for annual bonus and long-term incentive, if applicable.
We offer a comprehensive package of benefits. Available benefits include medical, dental, vision healthcare and other insurance benefits (for employee and family), retirement benefits, including 401(k), paid holidays, vacation, and compassionate and sick days. Required Skills:
Academic Research, Cell Culture Techniques, Immunoassays, Laboratory Safety, Scientific Data Analysis, Scientific Presentations, Scientific Research, Virology Preferred Skills: Current Employees apply HERE Current Contingent Workers apply HERE US and Puerto Rico Residents Only: Our company is committed to inclusion, ensuring that candidates can engage in a hiring process that exhibits their true capabilities. Please click here if you need an accommodation during the application or hiring process. As an Equal Employment Opportunity Employer, we provide equal opportunities to all employees and applicants for employment and prohibit discrimination on the basis of race, color, age, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability status, or other applicable legally protected characteristics. As a federal contractor, we comply with all affirmative action requirements for protected veterans and individuals with disabilities. For more information about personal rights under the U.S. Equal Opportunity Employment laws, visit: EEOC Know Your Rights EEOC GINA Supplement We are proud to be a company that embraces the value of bringing together, talented, and committed people with diverse experiences, perspectives, skills and backgrounds. The fastest way to breakthrough innovation is when people with diverse ideas, broad experiences, backgrounds, and skills come together in an inclusive environment. We encourage our colleagues to respectfully challenge one another's thinking and approach problems collectively. Learn more about your rights, including under California, Colorado and other US State Acts San Francisco Residents Only: We will consider qualified applicants with arrest and conviction records for employment in compliance with the San Francisco Fair Chance Ordinance Los Angeles Residents Only: We will consider for employment all qualified applicants, including those with criminal histories, in a manner consistent with the requirements of applicable state and local laws, including the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance Search Firm Representatives Please Read Carefully
Merck & Co., Inc., Rahway, NJ, USA, also known as Merck Sharp & Dohme LLC, Rahway, NJ, USA, does not accept unsolicited assistance from search firms for employment opportunities. All CVs / resumes submitted by search firms to any employee at our company without a valid written search agreement in place for this position will be deemed the sole property of our company. No fee will be paid in the event a candidate is hired by our company as a result of an agency referral where no pre-existing agreement is in place. Where agency agreements are in place, introductions are position specific. Please, no phone calls or emails.
Employee Status:
Regular Relocation:
Domestic VISA Sponsorship:
Yes Travel Requirements:
10% Flexible Work Arrangements:
Not Applicable Shift:
Not Indicated Valid Driving License:
No Hazardous Material(s):
N/A Job Posting End Date:
10/12/2026
*A job posting is effective until 11:59:59PM on the day BEFORE the listed job posting end date. Please ensure you apply to a job posting no later than the day BEFORE the job posting end date.
Vacancy posted 5 hours ago
Similar jobs that could be interesting for youBased on the Postdoctoral Fellow in Spring City, PA vacancy
- Facility near King Of Prussia is seeking a child and adolescent psychiatrist for 2 days per week to perform primarily inpatient duties. Hours are 8-5 Mon-Fri. with some flexibility. This is a long term, full time hourly position with no assignment end date . Malpractice...SuggestedHourly payFull timeLocum2 days per week
- Senior Investment Marketing Specialist At SEI we value our employees and believe in driving growth through change. Part of building brave futures is making a concerted effort to develop and challenge our employees to achieve their goals through internal job mobility...SuggestedFlexible hours
- Senior Marketing Manager SEI is seeking to hire a Senior Marketing Manager to join the Marketing team in our Asset Management division. You will be responsible for developing, implementing, and continuously advancing the marketing strategy for Stratos, powered by SEI...SuggestedFlexible hours
- ...GLP compliance activities and other duties as needed. ~ Performs job duties with some supervision. Collaborates effectively with fellow team members following priorities, checkpoints, and timelines in support of objectives set by direct supervisors. ~ Communicates...SuggestedFull timeContract work
$790 per week
Join a paid research panel and pick the studies you actually want. Focus Group Panel connects everyday people with paid remote focus groups, surveys, and product tests — you choose which ones to join. Active members earn up to $790 a week on the studies they qualify for...SuggestedFull timePart timeRemote work$40k - $60k
Job Description Job Description PowerPro Equipment is an Outdoor Power Equipment Dealership with 10 locations, representing fantastic equipment - Exmark, Hustler Turf, Scag, Spartan Mowers, Toro, Intimidator, Mahindra, Branson, Ventrac, Stihl and more! We are looking...Full time- Retail Store Positions At The GIANT Company we're committed to making our stores and facilities better every day for our team members, customers, and communities. We put our customers first, do what's right, win together, and make ideas happen. As a team member here...Local areaShift work
- Scientist/Sr. Scientist - Bioassay Development, Validation and Tech Transfer At GSK, we have bold ambitions for patients, aiming to positively impact the health of 2.5 billion people by the end of the decade. Our R&D focuses on discovering and delivering vaccines and medicines...Local area
- Job Summary Medical Laboratory Scientist needed for PRN night shift at Phoenixville Hospital. Hours: 10:30pm–7am with 1 weekend per month and 1 winter and 1 summer holiday required. Responsibilities The MLS obtains or receives specimens, performs clinical laboratory tests...ReliefSummer holidayNight shiftWeekend work
- Retail Store PositionsAt The GIANT Company we're committed to making our stores and facilities better every day for our team members, customers, and communities. We put our customers first, do what's right, win together, and make ideas happen. As a team member here, that...Local areaShift work
- Category/Area of Expertise: Customer Support Job Requisition: 531431 Address: USA-PA-Phoenixville-700 Nutt Road Store Code: GC - Pharmacy (1036786) At The GIANT Company we're committed to making our stores and facilities better every day for our...Local areaShift work
- ...Acknowledge and greet customers with a smile Answer customer questions Help customers find the products they are looking for Assist fellow associates as needed throughout the store Keep your area stocked, clean, and safe * For a complete list of duties and...Hourly payMinimum wageFull timeTemporary workPart timeShift workWeekend workAfternoon shift
- Axia Women's Health is the nation's largest community-based, integrated women's health network in the country serving women throughout New Jersey, Pennsylvania, Indiana, and Kentucky. At its core, Axia Women's Health is a community of over 400 providers across nearly 1...16 hoursFull timePart time
- At SEI we value our employees and believe in driving growth through change. Part of building brave futures is making a concerted effort to develop and challenge our employees to achieve their goals through internal job mobility. SEI is seeking a Marketing Manager to join...Full timeFlexible hours
- Job Summary The Medical Laboratory Scientist is responsible for obtaining or receiving specimens, performing clinical laboratory tests by standardized procedures, understanding method principles, performing quality control, performing preventive maintenance, and interpreting...ReliefSummer holidayNight shiftWeekend work
- We're looking for a high-impact Marketing Manager who brings both strategic vision and hands-on execution to our B2B marketing efforts. The ideal candidate will have a proven track record in industrial marketing , ideally for engineered or technical products , and...Shift work
- Director, Human Resources and Talent Acquisition Position Title: Director, Marketing Department: Marketing Summary of Position: The Director, Marketing will be the steward of key marketing work‑streams, including personal promotional tactics, message evolution, Payor/government...Full timeWork at office
- ...Whether serving our guests with their shopping experiences, assisting someone in our community to better their life, or helping your fellow coworker to exceed, Goodwill Keystone Area is about reaching out and making a difference. The Customer Service Manager is...Hourly payFull timeWork at officeLocal area
$35 - $43 per hour
At Axia Women's Health, recognized as a Great Place to Work for a 4th year in a row, our vision is to lead the way in improving women's health. At the core of achieving this is a caring, connected, and progressive community of providers, support colleagues, and women...Full timeTemporary workPart timeRelocation packageShift work$48k - $55k
Job Description Job Description Position : Associate Scientist, Discovery ADME Salary Range : $48,000 - $55,000 Location : Exton, PA About Pharmaron Pharmaron is a global contract research and manufacturing organization (CRO/CDMO) helping pharma and biotech...Contract workTemporary workWorldwideFlexible hours- Job Description Job Description Associate Scientist/Scientist - Cell-Based Assay Core Facility Title: Associate Scientist/Scientist Location: Exton PA Reports to : Associate Director, Core lab of Cell-based assay Full-time Frontage Laboratories...Full timeContract work
- Job Description Job Description Associate Scientist, Pharmaceutical Analysis-Small Molecule Location : Exton, PA Full-time Frontage Laboratories Inc. is an award winning, full-service, CRO/Contract Research Organization operating over 25 state-of-the-art ...Full timeContract work
- Job Description Job Description Associate Scientist, Bioanalytical Services Title: Associate Scientist, Bioanalytical Services Location: Exton, PA (Corporate) Responsibilities: Associate Scientist / Bioanalytical Services Essential Functions Provide support...Temporary work
- Job Description Job Description Associate Scientist (Pharmacokinetics) – Biologics Job Title: Associate Scientist (Pharmacokinetics) – Biologics Location: 760 Pennsylvania Dr, Exton, PA 19341 Full-time Frontage Laboratories Inc. is an award winning, ...Full timeContract workInternship
- FT Echo Lab Technologist - Penn Cardiology At Limerick Penn Medicine is dedicated to our tripartite mission of providing the highest level of care to patients, conducting innovative research, and educating future leaders in the field of medicine. Working for this leading...Immediate start
- Med Tech Position Available Looking for a new Med Tech job? My name is Leah and I'm a healthcare recruiter, I'm here to help! I have a Med Tech role available near Limerick, Pennsylvania! Details: Full-time and permanent. Shift: Discussed during interview. Opportunities...Permanent employmentFull timeShift work
$75k
About J.W. Pepper & Sons, Inc. J.W. Pepper was founded in 1876 and is the world’s largest retailer of sheet music. With a particular focus on the K12 education market, we offer over 1.2 million products on our website from over 1,000 suppliers. The company is headquartered...Local area$100k - $125k
If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process. Product Marketing Manager Full Time SSI1, Collegeville, PA, US 25 days ago Requisition ID: 1356 Salary Range: $1...Full timeFor contractors- This role owns product messaging, competitive positioning, and sales enablement end-to-end across the AFS product portfolio. The Senior Manager has authority to define and publish messaging frameworks, competitive battlecards, and sales collateral without per-item approval...Contract workWork at officeRemote workMonday to FridayFlexible hoursAfternoon shift
$168k - $199k
Job Description Work Environment: \n \n *** This is a hybrid position with a minimum of 3 days onsite required on a weekly basis. Relocation and mobility assistance are not provided. \n \n Main Responsibilities: \n \n Contributes to the scientific development...Relocation package
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Postdoctoral Fellow. Be the first to apply!



