Welcome to Haleon. We’re a purpose-driven, world-class consumer company putting everyday health in the hands of millions. In just three years since our launch, we’ve grown, evolved and are now entering an exciting new chapter – one filled with bold ambitions and enormous opportunity.
Our trusted portfolio of brands – including Sensodyne®, Panadol®, Advil®, Voltaren®, Theraflu®, Otrivin®, and Centrum® – lead in resilient and growing categories. What sets us apart is our unique blend of deep human understanding and trusted science.
Now it’s time to fully realise the full potential of our business and our people. We do this through our Win as One strategy. It puts our purpose – to deliver better everyday health with humanity – at the heart of everything we do. It unites us, inspires us, and challenges us to be better every day, driven by our agile, performance-focused culture.
A career in Microbiology where none of us stand still.
As a Microbiology Intern at Haleon’s Guayama site, you’ll be part of a dynamic, fast-paced manufacturing environment—not a typical academic lab setting. This role combines hands-on microbiology with operational support, requiring adaptability and attention to detail to meet strict timelines. You’ll gain practical experience in microbiological testing, media preparation, and environmental monitoring while contributing to safe and efficient processes that keep production moving.
What will your individual contribution at Haleon be?
Prepare and maintain microbiological media and lab materials for routine testing.
Perform environmental monitoring and assist with microbiological sampling in production areas.
Support investigations and documentation related to microbiological quality standards.
Collaborate with supervisors and team members to ensure compliance with GMP and site protocols.
Work in a high-volume, time-sensitive environment where flexibility and problem-solving are key.
Requirements
Pursuing a BS in Microbiology (Biology or Chemistry majors also considered).
Must have active student status for the duration of the internship.
Must be eligible to work in Puerto Rico at the time of, and for the duration of, employment. Employees will be required to furnish evidence of Puerto Rico work authorization.
Must be fluent in both Spanish and English.
Must be eligible to work onsite full-time in Guayama, PR (40 hours/week) and provide their own funding for relocation and/or transportation.
Location: Guayama, Puerto Rico
Expected Start Date: June 2026
Rate: $24.50
Don’t let imposter syndrome hold you back! First and foremost, we care about you as a person, not how many boxes you tick. Apply and let us know you better.
Care to Join Us?
We will review all applications continuously and invite selected candidates further to the recruitment process. We will close the offer once we find the best match for the role.
Apply now to hear more about this role and our journey changing the future of everyday health.
Job Posting End Date
2025-12-04
Haleon are committed to mobilising our purpose in a way that represents the diverse consumers and communities who rely on our brands every day. It guides us in creating an inclusive culture, where different backgrounds and views are valued and respected – all in support of understanding and best serving the needs of our consumers and unleashing the full potential of our people. It’s important to us that Haleon is a place where all our employees feel they truly belong.
During the application process, we may ask you to share some personal information, which is entirely voluntary. This information ensures we meet certain regulatory and reporting obligations and supports the development, refinement, and execution of our inclusion and belonging programmes that are open to all Haleon employees.
The personal information you provide will be kept confidential, used only for legitimate business purposes, and will never be used in making any employment decisions, including hiring decisions.
Please note that if you are a US Licensed Healthcare Professional or Healthcare Professional as defined by the laws of the state issuing your license, Haleon may be required to capture and report expenses Haleon incurs, on your behalf, in the event you are afforded an interview for employment. This capture of applicable transfers of value is necessary to ensure Haleon’s compliance to all federal and state US Transparency requirements.
If you require a reasonable accommodation or other assistance to apply for a job at Haleon at any stage of the application process, please contact us by sending an email to HR.AmericasSC-CS@haleon.com. Please include the following in your email:
Use subject line: ‘Haleon Careers: Job Accommodation Request’
Your Name and contact information
Requisition ID and Job Title you are interested in
Location of Requisition (city/state or province/country)
Description of specific accommodation you are requesting
Please note: Resumes, CVs, or other requests outside of accommodation support submitted to this email box will not be accepted.
The Haleon recruitment team will contact you using a Haleon email account (@haleon.com). If you are not sure whether the email you received is from Haleon, please get in touch.