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New · posted Oct 15

Repligen · Biotechnology

Senior Quality Engineer

  • Rancho Dominguez, CA
  • On-site
  • Full-time
  • Senior & Principal
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EmploymentFull-time
Deadline

Open until filled

The role

The Senior Quality Engineer is a key member of the Rancho Dominguez team, serving as a trusted quality partner across Manufacturing, Engineering, Operations, Supply Chain, and R&D. In this role, you will help ensure the delivery of high-quality products while driving initiatives that improve performance, reduce risk, and enhance the customer experience.

This position combines technical problem-solving, data-driven decision making, and cross-functional collaboration. You will lead investigations, support customer complaint resolution, manage quality improvement initiatives, and contribute to new product introductions from concept through implementation. As a senior individual contributor, you'll have the opportunity to influence outcomes, build strong partnerships across the organization, and help shape a culture focused on quality, innovation, and continuous improvement.

This role is expected to model our Leadership Behaviors—Integrity & Compliance, Customer Focus, Collaboration, Courage, Team Empowerment, and Accountability & Results—in all aspects of work.

This is an onsite role based in Rancho Dominguez, CA.

What you need

Education & Qualifications

  • Bachelor's degree in Engineering, Life Sciences, or a related technical field.
  • 7+ years of Quality Engineering and/or Manufacturing Engineering experience within a regulated manufacturing environment.
  • Working knowledge of quality systems and regulatory requirements.
  • Experience with investigative and problem-solving methodologies, root cause analysis, CAPA, quality planning, auditing, and statistical data analysis.
  • Strong technical aptitude with the ability to evaluate quality requirements, analyze data, and interpret technical information.
  • Experience performing scientific and technical investigations, validation activities, and process improvement initiatives.
  • Excellent verbal, written, and interpersonal communication skills, with the ability to effectively communicate across technical and non-technical audiences.
  • Proficiency with Microsoft Office applications and other computer-based tools, including spreadsheets, databases, and flowcharting software.
  • Experience with MasterControl or similar electronic Quality Management Systems (eQMS) is preferred.
  • Experience supporting filtration products, single-use technologies, medical devices, biologics, pharmaceutical manufacturing, or other regulated industries is preferred.
  • ASQ Certified Quality Engineer (CQE), Certified Quality Auditor (CQA), Lead Auditor certification, or related quality certifications are a plus.
  • Ability to work in both office and manufacturing/laboratory environments, including periods of sitting, standing, walking, and lifting up to 25 pounds.

Our mission is to inspire advances in bioprocessing as a trusted partner in the production of biologic drugs that improve human health worldwide. Focused on cost and process efficiencies, we deliver innovative technologies and solutions that help set new standards in bioprocessing. The estimated base salary range for this role, based in the United States of America is $115,000-$155,000. Compensation decisions are dependent on several factors including, but not limited to an individual's ,qualifications, location, internal equity, and alignment with market data. Additionally, employees are eligible to participate in one of our variable cash programs (bonus or commission) and eligible roles may receive equity as part of the compensation package. We offer a wide range of benefits such as paid time off, health/dental/vision, retirement benefits and flexible spending accounts. All compensation and benefits information will be confirmed in writing at the time of offer.

What you'll do

  1. Use investigative tools to perform investigations and root cause analysis for manufacturing and R&D projects and quality processes, driving effective resolution and supporting long-term quality improvements.
  2. Perform FMEA analysis, RCA, Gauge R&R studies, statistical evaluation, and process control activities to resolve quality and reliability concerns while proactively preventing future issues.
  3. Monitor metrology and calibration activities to ensure quality objectives are met and that effective procedures and work instructions are in place to support operational excellence.
  4. Prepare quality and inspection plans, procedures, instructions, and product and raw material specifications that support consistent product quality and manufacturing performance.
  5. Perform testing, validation, equipment qualifications, and data analysis. Recommend improvements to equipment, products, and test methods based on technical findings and business needs.
  6. Review manufacturing planning to ensure appropriate quality requirements are incorporated and potential risks are identified early.
  7. Prepare documentation for critical quality control points throughout manufacturing processes, ensuring clear criteria and requirements for effective inspection and testing.
  8. Compile and analyze data related to quality and manufacturing issues, initiate CAPA activities, and monitor the completion and effectiveness of corrective actions to drive sustained improvements.
  9. Perform investigations and prepare reports for customer complaints, helping ensure timely resolution and a positive customer experience.
  10. Conduct or participate in ISO, internal, and customer audits, contributing to a culture of quality, accountability, and continuous improvement.
  11. Prepare and review Quality Technical Agreements and supplier evaluation surveys, fostering strong quality partnerships with suppliers and external stakeholders.
  12. Support process and product improvement projects, product design reviews, and nonconformance investigations, helping drive quality improvements across the product lifecycle.
  13. Perform ISO, GDP, and technical training to promote quality awareness, knowledge sharing, and best practices across the organization.
  14. Build and maintain effective working relationships at all organizational levels, including customers and suppliers, to support quality and business objectives.
  15. Serve as a trusted quality liaison with Engineering, Manufacturing, Marketing, and customers, helping align priorities and drive successful outcomes.
  16. May serve as Lab Safety Coordinator in conjunction with the company's Hazard Communication Program.
  17. Demonstrated ability to leverage AI-enabled and digital tools to improve efficiency, enhance decision-making, and support continuous improvement initiatives.

Pay and benefits

$115,000 – $155,000 a year

Employer provided
How this compares
  • Paid time off

  • Health/dental/vision

  • Retirement benefits

  • Flexible spending accounts

  • Variable cash program (bonus or commission)

  • Equity eligibility

Where you'll work

Rancho Dominguez, CAOn-siteOpen in Maps (opens in a new tab)

More jobs in Rancho Dominguez, CA

Job intelligence

The context around this role

Live data · October 15, 2026

Salary intelligence

How the pay compares

This role's midpoint is 10% above the US median for Quality Assurance roles at this level.

This roleEmployer provided

$115,000 to $155,000 a year

Senior & Principal roles in California84 roles publishing pay

Middle half $118,625 to $158,625, median $135,000

Senior & Principal roles in the US284 roles publishing pay

Middle half $103,375 to $137,500, median $122,750
Annual base pay
Annual base payLowMedianHigh
This role$115,000—$155,000
California$118,625$135,000$158,625
All US$103,375$122,750$137,500

This role: Repligen's own published range. Comparisons: the base pay employers published on open Quality Assurance roles at the same level on Regulatory Jobs, October 15, 2026. Nothing is estimated.

Career trajectory

Where this role sits in Quality Assurance

The general path across 845 open Quality Assurance roles on Regulatory Jobs, with the titles they carry most. Not Repligen's own promotion track.

  1. One step back

    Associate & Specialist

    Often: Quality Engineer · Quality Technician

    $79K median227 open
  2. This role

    Senior & Principal

    Often: Quality Engineer · Senior Quality Engineer

    $123K median353 open
  3. Next step

    Manager

    Often: Manager, Quality Assurance · Quality Manager

    $153K median136 open
  4. Later

    Director

    Often: Director, Quality · Associate Director, Clinical Quality Assurance

    $209K median114 open
  5. Later

    VP & Executive

    Often: Vice President, Quality Assurance · AVP

    $302K median15 open

Skills DNA

What this role leans on

How many of the posting's 34 duty, requirement and summary lines touch each area. The posting's emphasis, not a proficiency score.

GMP and compliance: 6 linesLab testing and methods: 4 linesDocumentation and SOPs: 5 linesInvestigations and CAPA: 7 linesValidation and qualification: 2 linesQuality systems and risk: 8 linesData and digital systems: 1 lineCollaboration and leadership: 8 linesGMPLab testingDocumentationInvestigationsValidationQuality systemsData systemsTeamwork
  • Quality systems and risk8
  • Collaboration and leadership8
  • Investigations and CAPA7
  • GMP and compliance6
  • Documentation and SOPs5
  • Lab testing and methods4
  • Validation and qualification2
  • Data and digital systems1

Company hiring pulse

Repligen on Regulatory Jobs

5
Open roles
5
Distinct roles
4
Locations

By discipline

  • Quality4 80%
  • Compliance & Safety1 20%

By level

  • Senior & Principal3 60%
  • Manager1 20%
  • Associate & Specialist1 20%
See all 5 Repligen roles

More roles at Repligen

Similar Quality Assurance roles elsewhere

Senior Quality Engineer at Repligen

Open until filled. $115K–$155K a year, employer provided.

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    Senior Quality Engineer at Repligen — Rancho Dominguez, CA | Regulatory Jobs