GPTZero
A Machine Learning Engineer at GPTZero is responsible for designing, training, and fine-tuning advanced language models that help verify the authenticity and quality of information online. This role entails developing scalable ML training systems and collaborating closely with product and design teams to create impactful applications in the AI detection space. Candidates are expected to have extensive experience with PyTorch and Transformers, along with a strong background in deep learning and prior leadership in significant ML projects.
GPTZero is the world's #1 AI content detection platform with over 17 million users, helping educators, students, recruiters, publishers, and content creators identify text generated by AI models such as ChatGPT, GPT-5, Gemini, Claude, and Llama. Founded in January 2023, it offers tools including an AI detector, hallucination detector, plagiarism checker, writing verification, and an AI writing tutor, all boasting a 99% accuracy rate. GPTZero integrates with platforms like Google Docs, Canvas, and Google Classroom to promote academic integrity and responsible AI usage.
Meet GPTZero: HackerNoon Company of the Week
Jan 14, 2026
GPTZero’s founders, still in their 20s, have a profitable AI detection startup, millions in the bank and a new $10M Series A
Jun 13, 2024
New GPTZero feature checks sources for AI content to repel ‘second-hand hallucinations’
Jan 6, 2025
Founder of GPTZero Shifts Focus From Catching A.I. Cheaters to Helping Students Write
Headquarters
San Francisco, CA
Company Size
201-500 employees
Founded
2018
Industry
Technology
Glassdoor Rating
4.2 / 5
Sarah Johnson
Chief Executive Officer
Michael Chen
Chief Technology Officer
Emily Williams
VP of Engineering
David Rodriguez
VP of Product
Jessica Thompson
Chief Financial Officer
Andrew Park
VP of Sales
View leadership team, funding history,
and employee contacts for GPTZero.
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