Complaints Investigator Days

Complaints Investigator (Day Shift) Location: Witney, Oxfordshire (OX29 0YL)
Shift Pattern: 4 on, 4 off - 7:00 AM to 7:00 PM
Pay Rate: £15.99 per hour
Contract: Temporary

About the Role Are you passionate about quality and committed to improving healthcare outcomes? Do you thrive in a structured, process-driven environment and enjoy getting to the root of complex problems? We're hiring Complaints Investigators to join a leading global healthcare and medical device manufacturer in Witney.

This is not a customer service position - instead, you will play a vital part in analysing returned medical products, identifying causes of issues, and contributing to ongoing product and process improvements.

Key Responsibilities • Product Investigations: Conduct detailed investigations into returned medical products, identifying root causes and ensuring compliance with regulatory and quality standards.

• Data Analysis: Utilise internal software systems to track complaint trends and emerging patterns. Your analytical skills will be key to recognising recurring issues.


• Continuous Improvement: Suggest and implement improvements in workflows and documentation processes to boost efficiency and reliability.


• Cross-Functional Collaboration: Liaise with internal stakeholders and international colleagues to share findings and support broader quality assurance objectives.


• New Product Readiness: Participate in pre-launch readiness activities, ensuring complaint handling systems are in place for new product introductions.

What We're Looking For • IT Proficiency: Comfortable using Excel, Word, and internal systems for documentation and analysis.

• Detail-Oriented: Strong focus on accuracy and process compliance.


• Analytical Thinking: Able to identify trends, draw insights, and support data-driven decision-making.


• Excellent Communication: Able to clearly document findings and collaborate with global colleagues.


• Minimum Education: GCSEs or equivalent in Maths and English.

Desirable (Not Essential) • Exposure to lab practices, root cause analysis, or regulated environments.

• Familiarity with complaint handling in healthcare, pharma, or diagnostics.

What We Offer • Full training provided - no prior experience required!

• Work that matters - support the delivery of safe and effective medical devices.


• Career progression opportunities in a growing and supportive team.


• Clean, modern facilities with on-site perks including free parking and subsidised canteen.

Additional Requirements • Eligibility to live and work in the UK.

• Ability to provide a 5-year referencing history (employment or alternative activity).

Ready to Make a Difference? Apply now via this advert or email to or call and ask for Akhil or email to learn more!

Randstad Business Support is acting as an Employment Business in relation to this vacancy.

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