Microbiologist I Jobs (NOW HIRING)

The QC Microbiologist I / Scientist I supports microbiological testing activities in a cGMP-compliant Quality Control laboratory responsible for the manufacture and release of biological products. This role performs routine microbiological testing, supports validation activities, maintains laboratory documentation, and collaborates with cross-functional teams to ensure quality and regulatory compliance. The ideal candidate has hands-on microbiology laboratory experience, strong attention to detail, and an interest in developing expertise within a regulated pharmaceutical or biotechnology environment.

• Perform microbiological testing on water, in-process, environmental, and product samples in accordance with approved procedures.
• Conduct bioburden testing, bacterial endotoxin testing (BET), growth promotion testing, biological indicator testing, and maintenance of stock cultures.
• Support microbiological method validation and qualification activities.
• Collect, analyze, document, and communicate experimental data, observations, and test results accurately and in compliance with cGMP requirements.
• Prepare and maintain laboratory documentation, including test records, logbooks, protocols, reports, and controlled documents.
• Assist with investigations related to out-of-specification (OOS), out-of-trend (OOT), and other laboratory events, including root cause analysis and corrective actions.
• Utilize aseptic techniques and established microbiological methods to ensure reliable and accurate results.
• Apply microbiological techniques including culturing, plating, gram staining, light microscopy, microbial identification, and taxonomy.
• Coordinate sample receipt, handling, tracking, and disposition activities to ensure timely completion of testing.
• Manage laboratory inventory and order supplies in accordance with departmental procedures.
• Maintain laboratory equipment, workspaces, and records in a state of inspection readiness.
• Collaborate with Quality, Manufacturing, Validation, and other cross-functional teams to support product release and manufacturing operations.
• Adhere to all laboratory safety, environmental, and quality requirements.

• Bachelor's degree in Microbiology, Biology, Life Sciences, or a related scientific discipline.
• Minimum of 6 months of microbiology laboratory experience gained through industry, internships, research projects, academic laboratories, or equivalent experience.
• Hands-on experience with aseptic technique and basic microbiological testing methods.
• Experience with laboratory sample preparation, handling, documentation, and data collection.
• Familiarity with microbiological techniques such as culturing, plating, gram staining, microscopy, and microbial identification.
• Strong attention to detail and commitment to data integrity and quality.
• Effective written and verbal communication skills.
• Ability to work effectively both independently and within a team environment.
• Strong organizational and time-management skills with the ability to manage multiple priorities.

• Experience working in a cGMP, GLP, pharmaceutical, biotechnology, medical device, food, or related regulated environment.
• Experience performing bioburden testing, bacterial endotoxin testing (BET), growth promotion testing, environmental monitoring, sterility assurance, or microbial identification testing.
• Familiarity with laboratory quality systems and electronic systems such as LIMS, TrackWise, Documentum, or equivalent platforms.
• Experience supporting investigations, deviations, OOS/OOT events, or CAPA activities.
• Experience drafting or revising SOPs, protocols, reports, and laboratory documentation.
• Knowledge of biologics, pharmaceutical manufacturing, or quality control laboratory operations.

• Microbiology Laboratory Operations
• Aseptic Technique
• Quality Control Testing
• Data Collection & Analysis
• Documentation & Compliance
• Problem Solving
• Attention to Detail
• Collaboration & Teamwork
• Adaptability
• Technical Communication
• cGMP & Quality Systems

• This role provides an excellent opportunity for early-career scientists to develop expertise in GMP microbiology, biological product testing, validation activities, quality systems, and pharmaceutical manufacturing while working alongside experienced microbiology professionals in a highly regulated environment.

This is a Contract to Hire position based out of Saint Louis, MO.

The pay range for this position is $28.00 - $31.00/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)

This is a fully onsite position in Saint Louis,MO.

This position is anticipated to close on Aug 25, 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 20,000 consultants and 5,000 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500. We are proud to be an Engineering News-Record (ENR) Top 500 Design Firm for our engineering design services and a ClearlyRated Best of Staffing® winner for both client and talent service.

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 process due to a disability, please email actalentaccommodation@actalentservices.com for other accommodation options.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.