Co-op - Machine Learning Engineer (Data Labeller)

At Lendbuzz, we believe financial opportunity should be more personalized and fair. We develop innovative technologies that provide underserved and overlooked borrowers with better access to credit. From our employees to our dealers, partners, and borrowers, we’ve built a company and a culture around a resolute belief in the promise and power of diversity. We value independent and critical thinking.

We are seeking an enthusiastic Machine Learning Co‑ops to join our team, focusing on our sales and collection AI chatbot projects within our Language Understanding and Semantic Analysis group. Ideal candidates should be keen to explore the intricacies of the auto loan industry and will learn about large‑scale data annotation, cleaning and product design for real‑world applications of Large Language Models (LLMs).

This is a full time (40 hours) co‑op running from January to August 2026, and you will be expected to be in our Boston office 3‑4 days a week.

Key Responsibilities :

• Annotate chat data from sales‑dealers and customers to train AI chatbots
• Develop and refine prompts and Retrieval‑Augmented Generation (RAG) technique to enhance the performance of zero‑shot and few‑shot language models (LLMs)
• Assess the needs of dealers and customers, and implement AI chatbot functionalities to address those needs
• Fine‑tune language models as time permits and based on the availability of annotated data

Requirements :

$22 - $30 an hour

We believe :

Diversity is a competitive advantage. We celebrate our differences, and are better when we have a variety of experiences, viewpoints, and backgrounds.

Compassion is a strength. We care about our customers and look to build long‑term relationships with them.

Simplicity is a key feature. We work hard to make our forms and processes as painless and intuitive as possible.

Honesty and transparency are non negotiable. We incorporate these traits in all of our interactions.

Financial opportunity belongs to everyone. We work every day to improve lives by extending this opportunity.

If you believe these things too then we would love to hear from you!

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