All jobs at Exela Pharma Sciences
Exela Pharma Sciences logo

Senior Microbiologist

Posted Jul 12, 2026
Position Summary

The Senior Microbiologist serves as a technical leader within the Microbiology laboratory, responsible for advanced microbiological testing, complex troubleshooting, and oversight of laboratory investigations. This role drives scientific rigor and compliance by leading root cause investigations, owning CAPAs, and executing continuous improvement initiatives.

The Senior Microbiologist is a subject matter expert (SME) in Environmental Monitoring (EM), Water for Injection (WFI), and product-related microbiological testing, and plays a key role in mentoring and developing laboratory personnel while supporting cGMP sterile manufacturing operations.

Job Responsibilities

Technical Expertise & Laboratory Leadership

Serve as a subject matter expert (SME) for microbiological methods, testing techniques, and equipment.

Maintain training and provide technical guidance to Microbiologists on all microbiological testing including product and water bioburden, endotoxin testing, TOC and Conductivity, sterility, and organism identification.

Lead and execute complex microbiological testing, method troubleshooting, and atypical result evaluations.

Evaluate and improve microbiological methods for robustness, compliance, and efficiency.

Support method validations, verifications, and transfers.

Investigations, CAPAs, & Quality Systems

Lead and own microbiological deviation and laboratory investigations, including thorough root cause analysis.

Author and drive corrective and preventative actions (CAPA) to completion against defined timelines, ensuring effectiveness and sustainability

Act as primary microbiology representative in investigations impacting manufacturing, utilities, or product quality

Execute microbiological change controls for laboratory and manufacturing processes with technical accuracy

Process Improvement & Continuous Improvement

Lead process improvement initiatives to enhance laboratory efficiency, compliance, and audit readiness

Drive risk-based decision making for prioritization

Mentorship & Team Development

Provide bench-side mentorship, coaching, and technical training to Microbiologists

Develop training materials and ensure effective onboarding and ongoing competency development

Act as a resource for troubleshooting and scientific problem-solving for the team

Regulatory Inspections & Audit Readiness

Serve as the primary microbiology representative during regulatory inspections

Responsible for ensuring inspection readiness

Maintain effective communication with inspectors

Drive actions for successful resolution of audit observations or improvements identified.

This position may be involved with the transportation and handling of hazardous waste; must successfully complete Resource Conservation Recovery Act (RCRA) training within 1 year of hire, and annually thereafter.

Experience Requirements

Minimum of 5-8 years of related laboratory experience, academic or otherwise

Knowledge of aseptic techniques

Knowledge of cGMP

Experience in activities pertaining to aseptic manufacturing and knowledge of how to maintain an aseptic environment

Demonstrated experience leading investigations, CAPAs, and root cause analysis

Strong leadership, mentoring, and coaching skills

Ability to multi-task, work under pressure with time constraints

Must be flexible and able to adapt to changes in task priority

Excellent communication skills and ability to work independently to complete tasks

Education Requirements

Bachelor of Science (BS) Degree in Microbiology, Biology, or related Life Sciences.

Originally posted by Exela Pharma Sciences. View original posting

← Browse all companies

BioCareerAI is an independent job platform and is not affiliated with or endorsed by Exela Pharma Sciences.

Senior Microbiologist at Exela Pharma Sciences | BioCareerAI