How often are new jobs added?

New internships are added continuously throughout the day. We monitor company career pages and hiring tools in real time, so most roles appear on InternshipsHQ shortly after they’re posted.

Why can I only view a limited number per day on the free plan?

The free plan is designed to let you explore the platform and see how fresh the listings are. Limits help us prioritize serious applicants and keep the signal high. Pro removes these limits and gives you full access.

What sources do you pull internships from?

We source internships directly from company career pages, startup hiring platforms, and applicant tracking systems like Greenhouse, Lever, Ashby, Workable, and others. This helps us surface roles earlier and avoid repost-heavy job boards.

Are these internships legitimate?

Yes. We actively filter out expired, duplicate, misleading, and low-quality listings. Each role is checked for legitimacy and posting freshness so you’re not wasting time on dead or fake opportunities.

Can I filter by location, experience level, remote, or salary?

Yes. You can filter internships by role, location, experience level, remote or hybrid status, and pay when available. Pro users get access to more advanced and saved filters.

Why are early alerts so important?

For internships, timing matters more than volume. Most callbacks happen when roles are still new and applicant pools are small. Early alerts help you apply before listings get flooded.

Do you show salary or pay information?

When companies include pay information, we display it clearly. Not all internships list salary upfront, but we prioritize transparency whenever the data is available.

Is InternshipsHQ suitable for senior or experienced roles?

InternshipsHQ is primarily built for internships, entry-level, and early-career roles. If you’re looking for senior or leadership positions, you may find limited results here.

INTERNSHIP DETAILS

Intern - Protein Discovery

CompanyGRIFOLS, S.A.

LocationUnited States

Work ModeOn Site

PostedMarch 11, 2026

Internship Information

Core Responsibilities

The summer intern will assist in developing and optimizing transfection methods to support R&D recombinant protein production projects, focusing on optimizing transient and stable transfections in mammalian cells. This involves extensive cell culturing, supporting assays to measure efficiency, participating in experimental design, data analysis, and drafting technical reports.

Internship Type

full time

Company Size

13992

Visa Sponsorship

Language

English

Working Hours

40 hours

Apply Now →

You'll be redirected to
the company's application page

About The Company

Grifols is a global healthcare company founded in Barcelona in 1909 committed to improving the health and well-being of people all over the world. A leader in essential plasma-derived medicines and transfusion medicine, we develop, produce and provide innovative healthcare services and solutions in more than 110 countries. Patient needs and our ever-growing knowledge of many chronic, rare and prevalent diseases, sometimes life-threatening, drive our innovation in plasma-based therapies and other biopharmaceuticals to enhance quality of life. Grifols is focused on treating conditions across a broad range of therapeutic areas: immunology, hepatology and intensive care, pulmonology, hematology, neurology and infectious diseases. With a workforce of over 23,000 employees in more than 30 countries and regions, we are committed to a sustainable business model that sets the standard for continuous innovation, quality, safety and ethical leadership in the industry. Our work has a positive social and economic impact in the countries where we operate, creating jobs and generating wealth. People are at the heart of what we do, and we strive to create an inclusive, diverse, fair and equal society. Maintaining and promoting a workforce that reflects this reality leads to enhanced professional relationships and helps us to give our best to patients, donors and customers. In 2024, Grifols was named one of TIME’s ‘World’s Best Companies’ for the second year in a row, reaffirming our commitment to excellence. We were also recognized by Forbes as one of the "Best Employers for Women 2023," reflecting our dedication to fostering an inclusive and supportive workplace for all. To maintain a positive community and overall respectful communication, please keep our community guidelines in mind.

About the Role

Would you like to join an international team working to improve the future of healthcare? Do you want to enhance the lives of millions of people? Grifols is a global healthcare company that since 1909 has been working to improve the health and well-being of people around the world. We are leaders in plasma-derived medicines and transfusion medicine and develop, produce and market innovative medicines, solutions and services in more than 110 countries and regions.

The summer intern will assist in the development and optimization of transfection method(s) to support R&D recombinant protein production projects.

The goal is to optimize transient and stable transfections of plasmids into mammalian cells to produce recombinant proteins. The project will involve extensive culturing of cells and supporting assays to measure transfection efficiency. The intern will learn about working and collaborating in biological labs within an industrial setting, where they will work on improving the transfection methods to optimize yield and reproducibility. The intern will participate in experimental design and execution, collect and analyze data, create summary tables and graphs, and help draft a technical report. At the end of the internship, they will present their findings to other departments.

Requirements: To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skills, education, and/or ability required. Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions.

Must be a rising Junior or Senior pursuing a Bachelor's degree OR be actively pursuing a Master's or PhD degree
Area of Study: Biology, Biochemistry, Biomedical, or related fields.

GPA of 3.0 or higher.

Skills:

Previous cell culture experience is a must. Experience with human suspension cells for recombinant protein production is a plus.
Understanding and experience in flow cytometry is a plus.

Experience with plate-based biochemical assays, such as ELISA.

Proficiency with imaging platforms.

Ability to work independently.

Excellent communication and interpersonal skills.

Excellent record keeping.

Third Party Agency and Recruiter Notice:

Agencies that present a candidate to Grifols must have an active, nonexpired, Grifols Agency Master Services Agreement with the Grifols Talent Acquisition Department. Additionally, agencies may only submit candidates to positions that they have been engaged to work on by a Grifols Recruiter. All resumes must be sent to a Grifols Recruiter under these terms or they will be considered a Grifols candidate.

Grifols provides equal employment opportunities to applicants and employees without regard to race; color; sex; gender identity; sexual orientation; religious practices and observances; national origin; pregnancy, childbirth, or related medical conditions; status as a protected veteran or spouse/family member of a protected veteran; or disability. We will consider for employment all qualified applicants in a manner consistent with the requirements of all applicable laws.

Location: NORTH AMERICA : USA : NC-RTP:USNC0003 - RTP NC-Research Building 85

Learn more about Grifols

Key Skills

Cell CultureRecombinant Protein ProductionTransfection Method OptimizationMammalian CellsExperimental DesignData AnalysisTechnical ReportingFlow CytometryBiochemical AssaysELISAImaging PlatformsIndependent WorkCommunication SkillsRecord Keeping