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Assay Development Scientist Jobs in Missouri (NOW HIRING)

KCAS Bio

Sr. Scientist - BioPharma LBA

Kansas City, MO · On-site

$89K - $122K/yr

Design and execute all phases of assigned projects including assay development, qualification/validation, troubleshooting, data analysis, and report generation * Act as lead scientist, help to design ...

Bioio, Inc.

Be Seen First

Senior Scientist

Saint Louis, MO · On-site

$90K - $125K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Senior Scientist Bioio, Inc. | St. Louis, MO (on-site) | Full-time We're a preclinical drug ... Genuinely strong at mammalian cell culture and assay development (this is non-negotiable) * Fluent ...

Aclaris Therapeutics, Inc.

Scientist

Saint Louis, MO · On-site

The Scientist, Biology focuses on the design, development, and execution of cellular, immunological and/or other biological/pharmacological assays that are critical for the company to meet its goals.

kindeva

Scientist III

Bridgeton, MO · On-site

The Analytical Development Scientist III functions as a senior technical expert within the QC ... Lead troubleshooting of complex analytical and biochemical assays and support rootcause analysis ...

kindeva

Scientist III

Bridgeton, MO · On-site

The Analytical Development Scientist III functions as a senior technical expert within the QC ... Lead troubleshooting of complex analytical and biochemical assays and support rootcause analysis ...

kindeva

Scientist III

Bridgeton, MO · On-site

The Analytical Development Scientist III functions as a senior technical expert within the QC ... Lead troubleshooting of complex analytical and biochemical assays and support rootcause analysis ...

kindeva

Scientist III

Bridgeton, MO · On-site

The Analytical Development Scientist III functions as a senior technical expert within the QC ... Lead troubleshooting of complex analytical and biochemical assays and support rootcause analysis ...

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Assay Development Scientist information

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$36

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How much do assay development scientist jobs pay per hour?

As of Aug 15, 2026, the average hourly pay for assay development scientist in Missouri is $36.27, according to ZipRecruiter salary data. Most workers in this role earn between $26.59 and $43.27 per hour, depending on experience, location, and employer.

What is an assay development scientist?

An Assay Development Scientist designs, optimizes, and validates biochemical and cell-based assays for drug discovery, diagnostics, or research applications. They work with a variety of techniques such as ELISA, PCR, and high-throughput screening to measure biological or chemical responses. Their role involves troubleshooting, data analysis, and collaboration with cross-functional teams to ensure assay accuracy and reproducibility.

What are the key skills and qualifications needed to thrive as an assay development scientist?

To thrive as an Assay Development Scientist, you need a strong background in biochemistry, molecular biology, or a related field, along with experience in assay design, optimization, and validation. Proficiency with laboratory instrumentation such as plate readers, liquid handlers, and data analysis software (e.g., GraphPad Prism or SoftMax Pro), as well as familiarity with regulatory guidelines, is often required. Effective problem-solving, meticulous attention to detail, and strong communication skills set exceptional candidates apart. These abilities ensure the successful development of reliable assays, facilitate collaboration with interdisciplinary teams, and support impactful scientific advancements.

What does an assay development scientist do?

A typical day for an Assay Development Scientist involves designing experiments, running and optimizing biochemical or cell-based assays, analyzing data, and documenting results. You will often collaborate closely with cross-functional teams, including research scientists, project managers, and quality assurance specialists, to ensure assays meet project requirements. Regular meetings to discuss progress, troubleshoot technical challenges, and plan next steps are common. The role also involves staying up-to-date with new technologies and industry standards to continuously improve assay performance.

What are the most commonly searched types of Assay Development Scientist jobs in Missouri?

The most popular types of Assay Development Scientist jobs in Missouri are:

What are popular job titles related to Assay Development Scientist jobs in Missouri?

For Assay Development Scientist jobs in Missouri, the most frequently searched job titles are:

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The top searched job categories for Assay Development Scientist jobs in Missouri are:

Assay Development Scientist jobs near you
Infographic showing various Assay Development Scientist job openings in Missouri as of August 2026, with employment types broken down into 1% As Needed, 86% Full Time, 11% Part Time, and 2% Contract. Highlights an 91% Physical, 3% Hybrid, and 6% Remote job distribution, with an average salary of $75,434 per year, or $36.3 per hour.

Sr. Scientist - BioPharma LBA

KCAS Bio

Kansas City, MO • On-site

$89K - $122K/yr

Full-time

Re-posted 16 days ago

Job description

Performing critical work that impacts our industry and our world’s health while problem solving and innovating in the field – that is what Sr. Scientists at KCAS Bio get to do every day. If that gets you excited too, then maybe working as a Sr. Scientist at KCAS Bio is the role for you.

When you work as a Sr. Scientist in the BioPharma Sciences group at KCAS, you get to further our mission by leveraging your knowledge in bioanalytical and scientific principles to be responsible for carrying out all aspects of a study, from study setup through reporting, as well as development. You will also utilize your strong base in scientific principles/theories to assess data integrity and troubleshoot when necessary.

Our BioPharma Sciences team uses ligand binding assay (LBA) platforms to conduct bioanalytical testing in support of drug discovery, preclinical, and clinical studies, including the quantification of proteins, biomarkers, and anti-drug antibodies in biological matrices using technologies such as ELISA, MSD, and other immunoassay-based methods.

In this role, we will rely on you to:
  • Design and execute all phases of assigned projects including assay development, qualification/validation, troubleshooting, data analysis, and report generation
  • Act as lead scientist, help to design experiments, provide work instructions and technical training to more junior scientific staff in daily activities
  • Be responsible for all client communication related to study conduct
  • Interact with QAU to resolve identified audit issues and be accountable for continuous quality management in assigned studies
  • Have final authority for sample identification, including clinical site discrepancies and/or client
  • Be responsible for timeline adherence and communication of status to management as required
  • Ensure compliance of study activities with pertinent portions of study protocol, SOPs and GLP regulatory requirements
  • Prepare data summaries and final reports for client delivery
  • Act as a technical expert for assay performance, troubleshooting, and problem solving
  • Perform all aspects of the job in a way that supports company brand and supports company mission, vision, and values
To qualify for this role, you will have:
  • Bachelor’s, Master’s, or PhD in Biology, Biochemistry, Immunology, or related field with at least 5 years of experience in a bioanalytical laboratory environment
  • Extensive hands-on experience working in a GLP-regulated laboratory environment (required)
  • Strong experience with ligand binding assays (LBA), including ELISA, MSD, or similar immunoassay platforms
  • Experience with assay development, qualification, and validation for biomarker, PK, and/or immunogenicity (ADA) assays
  • Strong understanding of assay performance characteristics (precision, accuracy, sensitivity, selectivity, robustness)
  • Experience troubleshooting complex assay performance issues and optimizing assay conditions
  • Experience interacting with Quality Assurance and supporting audits and inspections
  • Prior experience acting in a study lead or Principal Investigator–type role is preferred
(Please note this is a representative summary of responsibilities, not a comprehensive or exclusive list of the duties to be performed in any position. Employees must follow instructions and perform additional duties as requested.)
 
WHO YOU ARE
You will thrive at KCAS Bio if you enjoy a relational environment, are purpose- and values-driven, embrace constant development and supportive leadership, and enjoy being part of innovative work.
 
WHAT YOU’LL GET
Our benefits include, and extend beyond, the traditional package. At KCAS Bio, you will enjoy company sponsored events like food trucks, family days and spirit days. You will grow in your career with KCAS University. You will be able to connect with like-minded employees to further KCAS Bio's approach to key areas such as wellness, inclusion, and community outreach. You will engage as an owner in our stock ownership program. You will have access to the latest technology. And you will be able to invest in the community with paid time off to volunteer.
 
Learn more about the Benefits at KCAS Bio 
 
WHO WE ARE
We are a fast-growing contract research organization (CRO) headquartered in Kansas City, pioneering the latest drug development in both human and animal health fields. Demand for our expertise is growing and so is our need for great people to work in nimble, empowered teams committed to one another’s growth. At KCAS Bio, we advance both great science AND great people.
 
Learn more about what it is like to work at KCAS Bio
 
KCAS Bio is proud to be an Equal Opportunity Employer. Among other things, we provide equal employment opportunities without regard to race, color, religion, national origin, ancestry, marital status, veteran status, age, disability, pregnancy, genetic information, sex, sexual orientation, gender identity, or any other legally protected category; we recruit qualified candidates without regard to citizenship status based on internal processes that enable us to hire the right candidates consistent with the appropriate U.S. Immigration framework; and (3) we work with and provide reasonable accommodations to individuals with disabilities and for sincerely held religious beliefs, observances, and practices. Anyone who needs reasonable accommodation may send an email to kcasrecruiting@kcasbio.com or call 913-248-3000 (for TTY assistance call 711) and ask for Human Resources.
 
IND123

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.