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Assay Scientist Jobs (NOW HIRING)

e184

Assay Development Scientist

Portland, OR

$37.50 - $47/hr

As our Assay Development Scientist , you will be the primary architect of our internal molecular biology toolkit, transforming cutting-edge academic and commercial protocols into robust, highly ...

e184

Assay Development Scientist

Portland, OR · On-site

$37.50 - $47/hr

As our Assay Development Scientist , you will be the primary architect of our internal molecular biology toolkit, transforming cutting-edge academic and commercial protocols into robust, highly ...

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How much do assay scientist jobs pay per hour?

As of Jul 2, 2026, the average hourly pay for assay scientist in the United States is $38.99, according to ZipRecruiter salary data. Most workers in this role earn between $33.89 and $42.55 per hour, depending on experience, location, and employer.

What is an assay scientist?

An assay scientist is a professional who develops, performs, and analyzes laboratory tests called assays to measure the presence or concentration of specific substances in samples. They often work in pharmaceutical, biotech, or research settings, utilizing techniques such as ELISA, PCR, or chromatography, and may require knowledge of laboratory safety and data analysis tools. Their role is essential for drug development, quality control, and scientific research.

What is the highest paid scientist job?

In the field of assay science, senior roles such as Principal Scientist or Director of Research tend to have the highest salaries, often exceeding $150,000 annually. These positions typically require extensive experience, advanced degrees, and leadership responsibilities within pharmaceutical, biotech, or research organizations.

What are some common challenges Assay Scientists face when developing new assays, and how can they overcome them?

Assay Scientists often encounter challenges such as optimizing assay sensitivity and specificity, troubleshooting inconsistent results, and ensuring reproducibility across multiple runs. These issues require strong problem-solving skills, attention to detail, and thorough documentation practices. Collaborating closely with cross-functional teams such as research scientists, statisticians, and laboratory technicians is crucial for resolving technical hurdles and refining protocols. Staying updated on the latest assay technologies and validation standards also helps in overcoming obstacles effectively.

What are the key skills and qualifications needed to thrive as an Assay Scientist, and why are they important?

To thrive as an Assay Scientist, you need a solid background in biochemistry, molecular biology, or a related field, typically with at least a bachelor's or master's degree and laboratory experience. Familiarity with analytical instruments, assay platforms (such as ELISA, PCR, or HPLC), and relevant data analysis software is essential. Strong problem-solving abilities, attention to detail, and effective communication are key soft skills for designing, optimizing, and interpreting experiments. These competencies are crucial for ensuring the accuracy, reliability, and reproducibility of scientific results in research and development settings.

Which scientist is highly paid?

In the field of assay science, senior-level scientists such as Principal Scientists or Directors tend to have higher salaries due to their experience, leadership responsibilities, and specialized skills. Generally, scientists with advanced degrees, certifications, and extensive industry experience earn the highest compensation in this area.

What are the 20 types of scientists?

Scientists can be categorized into various fields such as biologists, chemists, physicists, geologists, astronomers, environmental scientists, medical scientists, computer scientists, social scientists, mathematicians, forensic scientists, materials scientists, oceanographers, atmospheric scientists, neuroscientists, agricultural scientists, data scientists, forensic scientists, pharmacologists, and biochemists. Each specializes in specific areas of research and often requires relevant training, certifications, and laboratory skills. Assay scientists, for example, typically work in biomedical or pharmaceutical labs focusing on analytical testing and validation.

What does an Assay Scientist do?

An Assay Scientist is responsible for developing, optimizing, and validating laboratory tests (assays) to analyze biological samples. They design experiments to measure the presence or activity of specific substances, such as proteins, enzymes, or drugs, often using techniques like ELISA, PCR, or mass spectrometry. Assay Scientists play a vital role in pharmaceutical research, diagnostics, and quality control by ensuring the accuracy and reliability of test results. Their work supports drug discovery, clinical trials, and the development of new diagnostic tools.

What is the difference between Assay Scientist vs Research Scientist?

AspectAssay ScientistResearch Scientist
Required CredentialsBachelor's or Master's in Life Sciences, relevant lab certificationsBachelor's, Master's, or PhD in related field, often with specialized research experience
Work EnvironmentLaboratories focused on assay development, validation, and testingResearch labs, academic institutions, or industry R&D departments
Employer & Industry UsagePharmaceutical, biotech, diagnostics companiesUniversities, research institutes, industry R&D divisions
Common Search & ComparisonAssay Scientist vs Research Scientist

Assay Scientists primarily focus on developing and validating laboratory tests and assays, often within industry settings like biotech or pharma. Research Scientists typically conduct broader scientific research, including experimental design and data analysis, often in academic or industry R&D. While both roles require strong laboratory skills and relevant credentials, Assay Scientists specialize in assay-specific tasks, whereas Research Scientists have a broader research scope.

More about Assay Scientist jobs
What states have the most Assay Scientist jobs? States with the most job openings for Assay Scientist jobs include:
What job categories do people searching Assay Scientist jobs look for? The top searched job categories for Assay Scientist jobs are:
Assay Scientist jobs near you
Infographic showing various Assay Scientist job openings in the United States as of June 2026, with employment types broken down into 6% As Needed, 69% Full Time, and 25% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $81,095 per year, or $39 per hour.

Scientist/Senior Scientist, Assay Development - Neuroscience Biomarkers

SpearBio

Woburn, MA • On-site

$115K/yr

Full-time

Posted 6 days ago

Job description

Spear Bio, founded in 2021, is a well-funded and rapidly growing biotech start-up headquartered in Woburn, Massachusetts. Our proprietary technology, Successive Proximity Extension Amplification Reaction (SPEAR), is a novel wash-free immunoassay platform, offering unprecedented sensitivity. We are dedicated to revolutionizing early disease diagnosis and monitoring by providing scalable, ultrasensitive solutions that deliver unparalleled accuracy in measuring low-abundant biomarkers, enabling clinicians and researchers to improve patient outcomes and advance global health.
Scientist/Senior Scientist, Assay Development - Neuroscience Biomarkers:
Our Assay Development team translates emerging biomarker science into robust assays for research and future clinical applications. We are seeking a Scientist / Senior Scientist who is intellectually curious, hands-on, self-motivated, and comfortable solving difficult scientific problems to play a pivotal role in advancing initiatives for our new range of ultrasensitive immunoassays. The ideal candidate combines deep neurobiology knowledge with experimental rigor, practical troubleshooting skills, and a strong sense of accountability.
The successful candidate will help optimize assay strategies, identify the most relevant molecular forms and epitopes, evaluate preanalytical variables and matrix effects, interpret clinical-sample data, and troubleshoot complex assay-development challenges.
We welcome applications from exceptional recent Ph.D. graduates and postdoctoral fellows who have demonstrated strong scientific ownership, as well as industry scientists who have rapidly taken on increasing responsibility in biotechnology or diagnostics environments. **This role is based onsite in our lab in Woburn, MA 5 days/week.
Responsibilities:
  • Develop a portfolio of ultrasensitive immunoassays throughout the product lifecycle, from initial screening and optimization through feasibility, verification, and transfer.
  • Plan, design, and execute hands-on assay-development studies, including antibody selection and pairing, reagent conjugation, buffer optimization, reference-material evaluation, matrix characterization, and analytical validation for research and future clinical applications.
  • Provide scientific leadership and translate biomarker biology into assay-design strategies by optimizing for clinically relevant molecular forms, isoforms, post-translational modifications, cleavage fragments, aggregation states, epitopes, and sample types.
  • Analyze data from clinical and preclinical samples and interpret findings in the context of disease biology, sample characteristics, and published literature.
  • Collaborate closely with Platform, Product Development, Operations, and Business Development teams to transition assays from feasibility through verification and transfer.
  • Prepare clear scientific presentations, technical reports, study summaries, abstracts, and publications.
  • Contribute to a rigorous, accountable, and highly collaborative startup environment.

Requirements:
  • Ph.D. in Neuroscience, Neurobiology, Molecular Biology, Biochemistry, Biomedical Engineering, or a closely related field.
  • Strong scientific expertise in fluid biomarkers and assay-development strategies for the diagnosis, stratification, or therapeutic monitoring of neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, or related neurological disorders.
  • Strong understanding of biomarker heterogeneity and the factors that influence measurement in human biofluids.
  • Hands-on experience developing immunoassays or other quantitative protein-detection methods.
  • Demonstrated ability to design experiments independently and troubleshoot technical challenges.
  • Evidence of meaningful scientific contributions through peer-reviewed publications, patents, conference presentations, or translational research programs.
  • Strong written and verbal communication skills.
  • Experience working in a startup or fast-paced biotechnology environment.
  • A record of rapidly increasing scientific ownership, leadership, or responsibility.
  • Can work 5 days/week on site in Woburn, MA .

We offer competitive compensation, meaningful stock ownership, comprehensive benefits, and a great work environment. This is an opportunity to enter an innovative, high-growth startup at an early stage and play an integral role in the company's growth and success. We are focused on identifying candidates who have demonstrated leadership and excellence throughout their careers and are excited by the prospect of building an industry-leading company.
Spear Bio Inc. provides equal opportunity in employment to all persons. No person shall be denied equal access because of race, creed, color, religion, national origin, sex, sexual orientation, gender identity, age, or physical/mental disability.
Spear Bio does not accept resume submissions from external recruiting agencies. Any unsolicited resumes or candidate information submitted without prior written agreement will be deemed the property of Spear Bio, and no placement fees will be paid.

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