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Contract Data Labeler Jobs in Missouri (NOW HIRING)

... and labelling is accurate. The Eurofins network of companies is the global leader in food ... Generates data by performing lab assays in ADME Toxicology, Ion Channel, Translational Biology ...

... data entry, book printing, the generation of mailing labels, and sorting and affixing postage to ... Due to the nature of the government contract requirements and/or clearance requirements, U.S.

... and labelling is accurate. The Eurofins network of companies is the global leader in food ... Ability to analyze data and effectively communicate results. Ability to complete work in an agreed ...

... and labelling is accurate. The Eurofins network of companies is the global leader in food ... Ability to analyze data and effectively communicate results. Ability to complete work in an agreed ...

... and labelling is accurate. The Eurofins network of companies is the global leader in food ... This includes, but is not limited to, sample preparation for analysis, sample analyses, data review ...

Showing results 21-40

Contract Data Labeler information

What is a contract data labeler?

Contract data labelers are professionals hired on a temporary or project basis to annotate and categorize data, such as images, text, or audio, for use in machine learning and artificial intelligence projects. Their main responsibility is to accurately tag or label data according to specific guidelines so that algorithms can learn to recognize patterns. As contractors, they typically work remotely and are paid per task, hour, or project. This role is essential for companies developing AI models that require large sets of accurately labeled data.

What are the key skills and qualifications needed to thrive as a contract data labeler?

To thrive as a Contract Data Labeler, you need strong attention to detail, accuracy, and basic data management skills, often supported by a high school diploma or equivalent. Familiarity with data annotation tools, spreadsheet software, and sometimes project management platforms is typically required. Excellent focus, time management, and the ability to follow detailed instructions are crucial soft skills in this role. These skills ensure labeled data is reliable and consistent, which is vital for training high-quality AI and machine learning models.

What are some common challenges faced by contract data labelers, and how can they be addressed?

Contract Data Labelers often work with large volumes of diverse data, which can lead to repetitive tasks and fatigue. Ensuring accuracy and consistency in labeling is crucial, as errors can significantly impact machine learning outcomes. To address these challenges, it's important to take regular breaks, follow detailed guidelines, and communicate with team members or project leads when ambiguities arise. Many teams use quality assurance checks and feedback sessions to help labelers maintain high standards and continuously improve their work.

What is the difference between Contract Data Labeler vs Data Annotator?

AspectContract Data LabelerData Annotator
CredentialsHigh school diploma or equivalent; basic computer skillsHigh school diploma or equivalent; attention to detail
Work EnvironmentRemote or on-site; tech companies, AI firmsRemote or on-site; AI and machine learning projects
Industry UsageUsed in AI training, machine learning datasetsUsed in AI, computer vision, NLP projects
Job FocusLabeling data for machine learning modelsAnnotating data to improve AI algorithms

The Contract Data Labeler and Data Annotator roles are similar, both involve labeling data for AI training. The main difference lies in terminology and specific project focus, but they often share similar credentials, work environments, and industry applications.

What are the most commonly searched types of Data Labeler jobs in Missouri?

The most popular types of Data Labeler jobs in Missouri are:

What are popular job titles related to Contract Data Labeler jobs in Missouri?

For Contract Data Labeler jobs in Missouri, the most frequently searched job titles are:

What job categories do people searching Contract Data Labeler jobs in Missouri look for?

The top searched job categories for Contract Data Labeler jobs in Missouri are:

What cities in Missouri are hiring for Contract Data Labeler jobs?

Cities in Missouri with the most Contract Data Labeler job openings:

Infographic showing various Contract Data Labeler job openings in Missouri as of August 2026, with employment types broken down into 20% Full Time, 20% Part Time, and 60% Contract. Highlights an 100% In-person job distribution.

Senior Bioanalytical Chemist - Scientist II

Eurofins Scientific

Saint Charles, MO • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 15 hours ago


Eurofins rating

7.4

Company rating: 7.4 out of 10

Based on 180 frontline employees who took The Breakroom Quiz

68th of 120 rated laboratories


Job description

Company Description

Eurofins Scientific is an international life sciences company, providing a unique range of analytical testing services to clients across multiple industries, to make life and our environment safer, healthier and more sustainable. From the food you eat, to the water you drink, to the medicines you rely on, Eurofins laboratories work with the biggest companies in the world to ensure the products they supply are safe, their ingredients are authentic and labelling is accurate.

The Eurofins network of companies is the global leader in food, environment, pharmaceutical and cosmetic product testing and in agroscience Contract Research Organisation services. It is one of the market leaders in certain testing and laboratory services for genomics, discovery pharmacology, forensics, advanced material sciences and in the support of clinical studies, as well as having an emerging global presence in Contract Development and Manufacturing Organisations. It also has a rapidly developing presence in highly specialised and molecular clinical diagnostic testing and in-vitro diagnostic products.

In over 30 years, Eurofins has grown from one laboratory in Nantes, France to 58,000 staff across a decentralised and entrepreneurial network of 900 laboratories in over 54 countries. Eurofins companies offer a portfolio of over 200,000 analytical methods to evaluate the safety, identity, composition, authenticity, origin, traceability and purity of biological substances and products.

In 2021, Eurofins generated total revenues of EUR 6.72 billion, and has been among the best performing stocks in Europe over the past 20 years.

Job Description

Become your most extraordinary self!  Our team is intensely proud to be a major provider of services and products to the drug discovery research industry.  Join Eurofins Discovery Services North America, LLC part of the Eurofins Discovery group of companies serving global clients in the Pharma and Biotech industries.  Work alongside industry experts and collaborate with team members to directly and positively impact human health worldwide!

We have a philosophy to support work life balance, career progression opportunities and offer many benefits such as formal mentoring programs, tuition reimbursement, extensive career training programs, competitive health benefits, paid time off and 10 annual paid holidays*.  

Essential Duties and Responsibilities:

  • Performs work in a laboratory setting, meeting the physical job requirements of a lab role.
  • Conducts production assays primarily in ADME Toxicology Services, but will also support BioTherapeutics Services based on business needs
  • Develops Liquid Chromatography- Mass Spectrometry (LC-MS) methods for ADME/ DMPK applications
  • Develops analytical methods supporting project teams both internally and externally for new assay development.
  • Performs Troubleshooting and Maintenance of Mass Spectrometers and HPLC units. Experience with Sciex or Thermo High Resolution/ Accurate Mass Instrumentation is a plus.
  • Prepares and manages inventory of buffers, reagents, semi-finished and finished goods.
  • Provides solutions to more complex problems, identifies and initiates process improvements
  • Maintains high data quality and reproducibility.
  • Performs data and report QC review within the department, and may support study director.
  • Takes ownership of client projects with minimal supervision.
  • Supports validation of new methods, and contributes to expansion of service/product line, equipment, and data management systems.
  • Understands and complies with requirements for work performed at a GxP site.
  • Completes required training and supports 100% of Employee Health and Safety requirements.
  • Demonstrates proficiency with care and maintenance of lab equipment and department assets.
  • Conducts responsible use of confidential IT and business systems, as required.
  • Adheres to department SOPs and documentation requirements, maintains accurate data management and reporting.
  • Supports unit goals and demonstrates Eurofins' competencies, as defined in the job plan.
  • Provides training to colleagues and external end users, when required.
  • Contributes to scientific community, and site research and development objectives.
  • Works effectively in a team environment, under minimum direction, to achieve business production, project timelines, and quality objectives.
  • Adjusts work hours and provides cross-functional support to other departments, as required, and maintains accountability in delivering to client needs/timelines.
  • Routinely communicates project updates to internal and external clients.
  • Performs other duties, as assigned.
Qualifications

Basic Minimum Qualifications (BMQ):

  • Direct/ Demonstrated experience with Liquid Chromatography- Mass Spectrometry (LC-MS) in a contract research organization or industry laboratory in one or more of the following areas:
  • Bioanalytical Method Development for Small and/or Large Molecules
  • Drug Metabolism and Metabolite Identification
  • Mass Spectrometry Based Proteomics
  • Direct/ Demonstrated experience with Liquid Chromatography- Mass Spectrometry (LC-MS) systems and troubleshooting
  • Demonstrated proficiency in contributing independently on a project team with time and quality deliverables
  • Good communication and interpersonal skills
  • Experience working in a Quality Management System
  • Ability to work in the U.S. indefinitely without sponsorship 

Education/Experience (BMQ):

  • B.S. with 10 years relevant experience
  • M.S. with 7 years relevant experience
  • Ph.D. with 3 years relevant experience
  • Or an equivalent of education and experience


Additional preferences:

  • Demonstrated experience with of validation of bioanalytical methods in accordance with regulatory (FDA, ICH, OECD) guidelines
  • Experience with liquid handling, automation, solid-phase extraction (SPE), HTS applications, and large-scale screening
  • Experience with Sciex or Thermo High Resolution/ Accurate Mass Instrumentation and Associated Software is a plus.
  • Experience in small team leadership and project management
  • Experience in leading and delivering results in R&D or innovation programs

Ability and/or Skills (BMQ):

  • Ability to read, write, and interpret documents, such as standard operating procedures and technical reports
  • Ability to perform mathematical calculations, statistical analyses, and data interpretation
  • Ability to multitask with organization and manage time effectively
  • Ability to solve practical problems and troubleshooting skills
  • Ability to work in a laboratory setting, according to physical requirements of a laboratory role
  • Lab equipment and office computer/software proficiency
  • Above average oral and written communication skills
  • Demonstrates a positive attitude, capacity for team environment, and exhibits a genuine interest in drug discovery in support of advancing human health
  • Ability to develop new methods, and lead research and development projects
  • Ability to review and QC release data/reports
  • Ability to lead small, informal sub-teams, train, and train new team members
  • Ability to conduct mid-size projects with minimal supervision
  • Ability to contribute to strategic vision, establishment of new service lines, equipment, and data management systems
  • Ability to easily support cross-functional demands
Additional Information

The position is full-time, Monday-Friday, 8:00 a.m.- 5:00 p.m., with overtime as needed. Candidates within a commutable distance of Saint Charles, MO are encouraged to apply. 

  • Excellent full time benefits including comprehensive medical coverage, dental, and vision options
  • Life and disability insurance
  • 401(k) with company match
  • Paid vacation and holidays

Eurofins USA Discovery Services is a Disabled and Veteran Equal Employment Opportunity employer.


What Eurofins employees say

Pay

Benefits

Hours and flexibility

Workplace

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About Eurofins

Sourced by ZipRecruiter

Industry

Scientific research and development services, biotechnology research and development and environmental consulting services

Company size

10,000+ Employees

Headquarters location

Leacock, PA, US