Agentic AI Applied Scientist Internship - NLP

Internship Program 

At Five9 we are committed to providing an exceptional experience for our interns.  We tailor our program to provide participants with real, impactful work, contributing directly to the continued success of Five9.  Through our Speaker Series, Intern Buddies, Employee Resource Groups, and other events, you’ll have the opportunity to meet and learn from some of the best in the business. 

This is a full-time, paid internship based out of our headquarters in San Ramon, CA. This role is hybrid. 3 days a week (M, W, TH) in office is required. The program runs 11 weeks with the opportunity to start in early or mid-June. 

As an intern at Five9, you can expect to:  

Learn.  Learn about Five9, our culture and what makes Five9 special. 

“The people here at Five9 have been super supportive of my learning - it's less intimidating to approach people, ask them about what they do, and more often than not they're willing to teach you a few things about their fields of work.” – Security Software Engineer Intern

Contribute.  Contribute to the success of the company, your team, and real, impactful projects. 

“Working at Five9 has been an enriching journey of learning and impact, where the work I am doing truly feels significant. I've gotten the chance to learn about high level business strategies and ensure that the work I do contributes to the business's overarching goals.” – PS Education Services Intern

Grow.  Grow as a student, an employee, as a person! 

“I have always been very career-oriented, and this summer I've realized how important it is to also focus on other aspects of my life. Meeting different employees at Five9 and hearing their career trajectory made me realize that everything will work out, eventually, and to take my time exploring my interests. However, that doesn't mean I will halt all career goals. I plan to continue networking with industry professionals and building my knowledge on using different data analytics tools. Seeing the way my team and the People Team utilize the data we have, made me realized just how much I enjoy working with and interpreting the data that is gathered.” – Talent Management Intern 

The Team

Join the NLP Team, where we work to deliver the AI capabilities through natural language processing and machine learning. You'll work closely with experienced applied scientists and machine learning engineers and gain hands-on experience with a full suite of generative AI technologies such as agentic AI frameworks, transformer-based models, and MLOps.

Responsibilities:

• Assist in the collection, preprocessing, and quality assurance of datasets to help us improve the AI Capabilities within Five9.
• Support the development and fine-tuning of NLP models/pipelines for tasks such as text classification, clustering, summarization, conversational AI, and retrieval augmented generation using tools like PyTorch, and HuggingFace Transformers.
• Collaborate with cross-functional teams to integrate research insights into production pipelines.
• Participate in evaluating model performance exploiting suitable methodologies and metrics as well as contribute to iterative improvements.
• Stay current with the latest advancements in NLP and machine learning research, contributing ideas that drive innovation.

Qualifications:

• Rising college senior or above, pursuing a post-graduate degree in Computer Science, Artificial Intelligence, Natural Language Processing, or a related field.
• Strong programming skills in Python with hands-on experience or a keen interest in data analysis.
• Familiarity with machine learning frameworks (PyTorch, Scikit-learn)
• Exposure to generative AI/NLP tools, including transformer-based models and Hugging Face Transformers
• Experience working with LLM APIs (e.g., OpenAI, Anthropic).
• Demonstrated problem-solving skills and a passion for exploring and applying new technologies in AI.