Protein Purification Scientist

Job Description

We are seeking a highly motivated and skilled Protein Scientist to join our dynamic research team. The ideal candidate will be responsible for performing protein quantification, protein characterization, protein identification, and related sample preparation. This role is crucial for advancing our research and development projects.

Responsibilities

• Perform ELISA for protein quantification including automated and semi-automated techniques.
• Execute western WES assays for protein identification and semi-quantification.
• Analyze data, interpret results, and document findings in data systems.
• Prepare samples for immunoassay needs.
• Participate in shared lab duties and maintain lab equipment.
• Perform SDS-PAGE and gel imaging for protein characterization.
• Conduct protease digestion and time course experiment analysis.
• Prepare samples for mass spectrometry.
• Express proteins in various systems, such as bacterial, yeast, and insect cells.
• Conduct protein purification using various chromatography techniques.
• Perform protein activity assays, including enzyme assays and protein binding assays.

• Masters degree in Biochemistry, Molecular Biology, Biotechnology, or a related field, or a Bachelors degree with relevant experience.
• Expertise in ELISA and western techniques.
• Experience with LIMS and liquid handlers.
• Experience with protein expression and purification techniques.
• Familiarity with mass spectrometry methodology.
• Strong analytical and problem-solving skills.
• Excellent communication and teamwork abilities.
• Familiarity with laboratory safety protocols and best practices.

• Self-starter and motivated individual.
• Experience in a research-driven and data-focused environment.
• Ability to take the lead on projects.

This position involves daily collaboration with teammates, regular lab meetings, data reviews, and project updates. The role is most often part of the Protein Analytics team, which includes 10 people in the lab, with occasional cross-functional support on the Protein Science team of 45 people. The environment is research-driven and data-focused, often fast-paced. The role is hands-on, requiring 70-90% of the time to be spent on bench work, running assays, prepping samples, and analyzing gels. Personal protective equipment such as gloves and goggles is required. The working conditions include a wet lab environment, with lifting requirements of up to 25 lbs, and handling of chemicals such as bacterial, yeast, insect cell antibodies, and cleaning materials.

The pay range for this position is $30.00 - $35.00/hr.

Eligibility requirements apply to some benefits and may depend on your job
classification and length of employment. Benefits are subject to change and may be
subject to specific elections, plan, or program terms. If eligible, the benefits
available for this temporary role may include the following:

Medical, dental & vision
Critical Illness, Accident, and Hospital
401(k) Retirement Plan Pre-tax and Roth post-tax contributions available
Life Insurance (Voluntary Life & AD&D for the employee and dependents)
Short and long-term disability
Health Spending Account (HSA)
Transportation benefits
Employee Assistance Program
Time Off/Leave (PTO, Vacation or Sick Leave)

Workplace Type

This is a fully onsite position in Chesterfield,MO.

Application Deadline

This position is anticipated to close on Aug 8, 2025.

About Actalent

Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 30,000 consultants and more than 4,500 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing due to a disability, please email ... for other accommodation options.