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

Summer Intern, Immunoassay

CompanyVaxcyte

LocationSan Carlos

Work ModeOn Site

PostedFebruary 25, 2026

Internship Information

Core Responsibilities

The intern will optimize the current assay platform to enhance sensitivity and accuracy for detecting pneumococcal antigens in human samples. This involves conducting experiments to test assay performance against known concentrations and analyzing results to refine protocols.

Internship Type

full time

Salary Range

$23 - $26

Company Size

511

Visa Sponsorship

Language

English

Working Hours

40 hours

Apply Now →

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

About The Company

Vaxcyte is a vaccine innovation company engineering high-fidelity vaccines to protect humankind from the consequences of bacterial diseases. VAX-31, a 31-valent pneumococcal conjugate vaccine (PCV) candidate being evaluated in a Phase 3 adult clinical program and in a Phase 2 infant clinical program, is being developed for the prevention of invasive pneumococcal disease (IPD) and is the broadest-spectrum PCV candidate in the clinic today. VAX-24, a 24-valent PCV candidate, is designed to cover more serotypes than any infant PCV on-market. VAX-31 and VAX-24 are designed to improve upon standard-of-care PCVs by covering the serotypes in circulation that cause a significant portion of IPD and are associated with high case-fatality rates, antibiotic resistance and meningitis, while maintaining coverage of previously circulating strains. VAX-XL, in earlier-stage development, also leverages the Company’s carrier-sparing, site-specific conjugation technology with the aim of further expanding coverage to deliver the broadest-spectrum candidate in the Company’s PCV franchise. Vaxcyte is re-engineering the way highly complex vaccines are made through XpressCF®, its cell-free protein synthesis platform exclusively licensed from Sutro Biopharma, Inc. Unlike conventional cell-based approaches, the Company’s system for producing difficult-to-make proteins and antigens is intended to accelerate its ability to develop high-fidelity vaccines with enhanced immunological benefits. Vaxcyte’s pipeline also includes VAX-A1, a prophylactic vaccine candidate designed to prevent Group A Strep infections, and VAX-GI, a vaccine candidate designed to prevent Shigella. For more information, visit www.vaxcyte.com.

About the Role

Join our Mission to Protect Humankind!

Vaxcyte is a clinical-stage vaccine innovation company engineering high-fidelity vaccines to protect humankind from the consequences of bacterial diseases, which have serious and costly health consequences when left unchecked. Working to eradicate or treat bacterial infections such as invasive pneumococcal disease, Group A Strep, and Shigella is just the beginning. Our path to success is clear and well-defined, and Vaxcyte is set up to go the distance.

WHAT we do is every bit as important as HOW we do it! Our work together is guided by four enduring core values:

*RETHINK CONVENTION: We bring creative and intellectual diversity to every facet of the work we do in order to innovate and re-innovate the way vaccines are delivered.

*AIM HIGH: We embody our collectively audacious goal to courageously make the most complex biologics ever attempted to protect humankind.

*LEAD WITH HEART: Everyone leads at Vaxcyte with a kindness-first, inclusive approach to collaboration and vigorous debate that advances our business objectives.

*MODEL EXCELLENCE: The magnitude of our challenge requires our shared commitment to demonstrating integrity, accountability, equality and clarity across communications and decision making.

Summary:

Vaxcyte’s Summer Internship program offers students with an opportunity to gain valuable work experience that complements their college curriculum with relevant hands-on work that can shape their future career pathing and interests.

As an Immunoassay Intern for Vaxcyte, you will work on a project as outlined below:

Optimize the current assay platform to improve sensitivity and accuracy for detecting pneumococcal antigens in human samples.
Conduct experiments to test the assay's ability to detect antigens in human samples spiked with known concentrations.
Analyze and interpret results to refine assay protocols and troubleshoot issues that arise during testing.

The Intern will learn and practice:

Hands-on experience in optimizing immunoassays, which are widely applicable to various immunoassays used in clinical and manufacturing settings.
Design experiments to test assay performance, analyze results, and troubleshoot issues.

Program Details:

The Internship will begin in June and will be around 10 weeks (8 hours per day) in duration at our San Carlos, California location.

Requirements:

Must be pursuing a Bachelor’s Degree (enrolled student with at least 1 year at university completed) with a focus on Biology, Biochemistry, or related field.
Proficiency in Microsoft Office.
Strong attention to detail and work quality.
Demonstrates collaboration and teamwork.
Enthusiastic-Shows curiosity and is eager to learn.

Reports to: Senior Manager, Nonclinical & Immunoassay

Location: San Carlos, CA

Salary Range: The expected salary range for this position is $23-$26 per hour for undergraduate students. Actual pay will be determined based on year of university/college completed. The Summer Internship position will not be eligible for benefits. Relocation and housing stipend will not be offered.

We are an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status.

Key Skills

Assay OptimizationImmunoassaysExperiment DesignData AnalysisTroubleshootingMicrosoft OfficeAttention To DetailCollaborationTeamworkCuriosity