GPTZero · 2 months ago
Machine Learning Engineer (LLM)
NYC Metro Area
Full-time
Hybrid
Mid Level
3+ years expGPTZero is dedicated to restoring information quality and transparency on the internet. As a Machine Learning Engineer on the GenAI team, you will build advanced AI tools that enhance critical thinking and create impactful applications, working alongside a team of experienced professionals from top engineering cultures.
Artificial Intelligence (AI)Information TechnologyNatural Language Processing
Responsibilities
Fine-tune and evaluate state-of-the-art language models
Optimize prompts to maximize classification accuracy, personalize outputs, and enforce style guidelines
Develop multi-agent workflows incorporating data from diverse sources using RAG
Improve and iterate on AI agents using observability and experimentation tools
Stay up-to-date with the latest literature and emerging technologies to solve novel problems
Work closely with product and design teams to develop intuitive applications that create societal impact
Qualification
Required
3+ YOE in Python
1+ YOE in LLM framework like Langchain or LlamaIndex
1+ YOE with agentic or RAG applications
Strong exploratory data analysis (EDA) skills to effectively leverage data in a way that informs pragmatic solutions
Experience pushing the cutting-edge in LLM abilities on novel tasks with subjective outputs
Excellent software engineer with experience building highly extensible and modular codebases, as well as complex pipelines
Self-starter (pitch, plan, and implement as a project owner in a fast-paced team)
Highly motivated to make positive societal impact
Ability to wear multiple hats and be a leader as our team grows
US work eligibility or visa
Preferred
Strong open-source portfolio
Publications at top-tier ML venues
Experience working in an early-stage startup environment
Experience with a prompt optimization framework like DsPY or TextGrad
Benefits
Health, dental, and mental health benefits
Hybrid work in Toronto offices
Competitive salary
Equity (We are a cash-flow positive/profitable company experiencing exponential growth in multiple industries. We are open to sharing our growth metrics with applicants.)
Flexible PTO
Regular company retreats
Mentorship opportunities with our world-class advisors and investors
Wellness and learning stipend
Company
GPTZero
GPTZero develops an AI detection platform that discerns the generated content as AI produced or human written.
11-50 employees
H1B Sponsorship
GPTZero has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2024 (1)
Funding
Current Stage
Early StageTotal Funding
$13.5MKey Investors
Footwork
2024-06-13Series A· $10M
2023-05-09Seed· $3.5M
Leadership Team
Alexander Cui
CTO and Co-Founder
Recent News
2025-09-22
Company data provided by crunchbase