Cell Signaling Technology, Inc. (CST) is a worldwide leader in developing and commercializing antibodies, assays, and research tools. One of our most successful community initiatives is our Summer Internship Program. By employing and training students from our surrounding communities and colleges, CST is able to provide our summer interns with a positive hands-on experience, where they can learn valuable skills from our knowledgeable CST team. Many of the student interns are invited to continue their internship for consecutive years, and after completing their degrees, some return to CST as full-time employees. Our internship positions are paid positions ($17.00 - $18.00 per hour) and are full-time roles, Monday-Friday.

The Life Sciences have a major impact on the planet. CST is a leader in this space and plays a key role in advancing sustainability to combat climate change and improve planetary health. Reducing our environmental footprint has been a core company value since the company was founded in 1999. CST’s sustainability goals focus on emissions, waste, water, giving, and individual action.

Responsibilities:

The CST Sustainability Intern will join the Sustainability team with a variety of responsibilities and areas of focus, which may include, but are not limited to, the following:

Energy Conservation Measures
Greenhouse Gas Inventory
Resource Management
Pilot Program Development
Employee Engagement
Social Media & Marketing
Volunteering Events

Required Skills & Experience:

Must be currently enrolled in an Undergraduate program in Environmental Science or a related field with a strong sustainability focus and interest. Graduate students are not eligible for this program
Should possess a passion for the environment, sustainability, science, and learning
Desire to create positive change and develop impactful solutions for our planet
Exhibit strong problem-solving, communication, and collaboration skills
Experience with Excel and/or data entry and ability to learn other basic software programs

Application Instructions:

Applications will be accepted from December 17, 2025, to January 17, 2026

Applications will ONLY be accepted if they are submitted via the CST Career site and must include the following:

A Resume
A link to a YouTube Video (60-second video introducing yourself and describing how an internship at CST will contribute to your future goals)
1 Letter of Recommendation
Copy of an unofficial transcript

Returning interns should apply with an updated copy of their resume only. No other application material is needed.

Graduate students are not eligible for this program.

Note:

Instructions on uploading videos to YouTube can be found by following this link.

If needed, Letters of Recommendation and Unofficial Transcripts may be emailed to internships@cellsignal.com. We will accept Letters of Recommendation and Unofficial Transcripts until January 27, 2026.

Returning interns are given priority but are not guaranteed a position.

Projected Program Dates:

May 26, 2026 - August 14, 2026

Cell Signaling Technology, Inc. is committed to providing equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, sex, sexual orientation, national origin, age, disability, genetic information, status as a veteran or as a member of the military or status in any group protected by applicable federal or state laws.

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Sustainability Internship