Demo

Scientist II

Actalent
North Chicago, IL Contractor
POSTED ON 4/22/2026
AVAILABLE BEFORE 5/22/2026

Job Title: Scientist II

Job Description

We are seeking a dedicated Scientist II to join our Sciences Department. This on-site position operates on the first shift, Monday through Friday, from 8am to 5pm, with the possibility of starting earlier depending on job tasks. The level of responsibility and compensation will be commensurate with experience.

Responsibilities

  • Perform high throughput quantitative in vivo and in vitro mass spectrometry analysis, troubleshooting, and problem-solving of small molecule compounds from various bio-matrices.
  • Operate, perform routine maintenance, and hands-on troubleshooting of AB Sciex mass spectrometry systems.
  • Train and mentor junior scientists.
  • Maintain excellent documentation of all work, including LIMS, electronic notebooks, test methods, and protocols.
  • Collaborate closely with multiple teams across Discovery to support bioanalysis.
  • Write or contribute to study reports for regulatory submissions.

Essential Skills

  • At least 2 years of experience in bioanalysis, in vivo assays, in vitro assays, data analysis, and mass spectrometry.
  • Proven method development experience using various extraction, chromatographic, and analytical methodologies.
  • Proven experience with quantitative bioanalysis of small molecules.
  • Experience operating and troubleshooting Agilent HPLCs, Leap/CTC PAL autosamplers, and AB Sciex Mass Spectrometers.
  • Ability to work independently in a high-throughput environment to design and conduct experiments, interpret, document, and communicate results.
  • Strong communication, interpersonal, and presentation skills.

Additional Skills & Qualifications

  • Experience in regulated bioanalysis and/or CRO Facility settings is a plus.
  • Understanding of small molecule analysis in biomatrix.
  • Understanding of peptides and proteins in biomatrix is a plus.
  • Reverse phase method development is a plus.

Work Environment

This is a 100% onsite role situated in a dynamic and collaborative environment. The position requires a commitment to an 8-hour workday, typically from 8am to 5pm, with the possibility of starting earlier based on job tasks. The initial contract is for 6 months, with potential extensions up to two years.

Job Type & Location

This is a Contract position based out of North Chicago, IL.

Pay and Benefits

The pay range for this position is $48.00 - $50.00/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 North Chicago,IL.

Application Deadline

This position is anticipated to close on Mar 6, 2026.

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 actalentaccommodation@actalentservices.com for other accommodation options.

Salary : $48 - $50

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