---
title: 'LLM Engineer (GenAI, NYC) at GPTZero'
canonical: 'https://feeny.ai/job/llm-engineer-genai-nyc-gptzero-new-york-x4tteje91jxq'
type: 'job'
last_seen: '2026-09-13'
---

# LLM Engineer (GenAI, NYC) at GPTZero

- **Company:** GPTZero
- **Location:** New York, NY
- **Compensation:** $150k–$230k
- **Employment:** full-time
- **Work type:** hybrid
- **Posted:** 2025-10-14
- **Last confirmed live:** 2026-09-13
- **Apply:** https://jobs.ashbyhq.com/gptzero/9e23e2df-d15d-4bf5-a841-ced573fb8511

## Job description

GPTZero is on a mission to restore trust and transparency on the internet. As the leading AI detection platform, we empower educators, students, journalists, marketers, and writers to navigate the evolving landscape of AI-generated content. With millions of users and institutions relying on us, we’re building a category-defining company at the intersection of AI and information integrity.

Our team comes from high-performing engineering cultures, including Meta, Perplexity, AWS, Affirm, and leading AI research labs, including Princeton, Caltech, and Vector Institute. About this role: In this role, you'll build the next generation of AI tools that preserve and enhance critical thinking for humanity. The ideal candidate is someone who is adept at creating reliable AI agents, prompt engineering, possesses a great product sense, and is also an excellent software engineer. You'll be working on a fast-paced team of passionate builders to create industry-defining software that has attracted millions of users globally.

What you'll contribute:

- 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

## Qualifications

- 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
- Visa for work in Canada or US

Bonus:

- 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

At GPTZero, our recruiting team is involved in every step of the hiring process. We use AI-based tools to help us to accelerate candidates at the resume review stage by marking when candidates met certain key criteria. These tools are never the final say in a hiring decision - humans are.

## About GPTZero

## Company Overview
- **One-liner**: GPTZero provides the leading AI-text identification platform that detects whether content was written by large language models like ChatGPT, serving over 2.5 million users worldwide.
- **Entity Type**: Private (Series A)
- **Headquarters**: New York City, New York, United States
- **Founded**: 2023
- **Founders**: Edward Tian (CEO) and Alex Cui (CTO)

## Core Business
- Primary industry: AI Content Detection & Information Transparency
- Target customers: B2B (education, hiring, publishing, legal, cybersecurity) and B2C (individuals checking AI-generated text)
- Mission/purpose: “Restore information quality and transparency on the internet” and “preserve what’s human, for humans.”

## Products & Services
- **AI Scan**: Deep analysis of text to determine AI probabilities, vocabulary patterns, and sentence-level detection (SaaS).
- **Authorship Verification**: Tools to verify the origin of documents across writing samples (SaaS).
- **Transparency Solutions**: Custom workflows and no-code integrations for teachers, publishers, and organizations to foster academic integrity and responsible AI adoption (SaaS/Platform).

## Market Standing
- **Valuation**: Not publicly disclosed (latest funding round: Series A, June 2024)
- **Key Metric**: Total funding – $13.5M over 2 rounds (Seed $3.5M led by Uncork Capital & Neo Capital; Series A $10M led by Footwork)
- **Annual Revenue**: Approximately $1.0M (as of latest available data)
- **Notable Investors/Partners**: Footwork (lead Series A), Uncork Capital, Neo Capital, and 6 institutional investors and 3 angel investors including Yazan Mimi.
- **Growth Signals**: 106 employees (monthly headcount growth: +1.4%), presence in 27 countries, offices in New York City, Canada, and other global hubs, 2.5M+ users served, partnerships with 100+ organizations.

## Competitive Advantages
- **First-mover & scale**: One of the most widely used AI detection tools, trained on a large, diverse corpus of human-written and AI-generated English prose.
- **Granular detection**: Offers sentence, paragraph, and document-level AI identification, which is more nuanced than many competitors.
- **Trusted by institutions**: Used by educators, hiring managers, publishers, and legal professionals, giving it deep vertical integration in high-stakes decision-making environments.

## Strategic Focus
- **Expanding beyond education** into hiring, publishing, legal, and cybersecurity — reflected in job postings for data scientists, ML engineers, and a Head of Marketing for B2C.
- **Responsible AI adoption**: Developing transparency tools to help organizations verify content origin without stifling innovation.
- **International growth**: With operations in 27 countries, the company is scaling its global footprint and hiring talent worldwide.

## Why Work Here
- **Culture & mission**: Employees rate culture 5.0/5.0 (based on 1 review), emphasizing a purpose-driven environment focused on information integrity.
- **Growth opportunities**: High headcount growth rate (1.4% monthly) and active hiring across 12+ open roles – from founding data scientists to software engineers and interns.
- **Remote & global**: Hybrid/remote-friendly with a distributed team across the US, Canada, Europe, Asia, and Africa. Offices available in New York City and other locations.
- **Notable perks**: Opportunity to work on cutting-edge AI at scale; internal movement and early-career mentoring from experienced leaders.

## Sources
1. [jobs.ashbyhq.com](https://jobs.ashbyhq.com/GPTZero)
2. [apify.com](https://apify.com/) (company profile data aggregated by Apify – original source includes revenue, funding, headcount)
3. [linkedin.com](https://www.linkedin.com/company/gptzero)
4. [support.gptzero.me](https://support.gptzero.me/articles/1087723304-what-is-gptzero)
5. [tracxn.com](https://tracxn.com/d/companies/gptzero/__J8D_MYDskL-fbrszeOIo77YbxrObqpjnSo7PQJQ3Cy4)

## Other roles at GPTZero

- [Investigations Engineer - NYC](https://feeny.ai/job/investigations-engineer-nyc-gptzero-new-york-491frhj8t7jd) — New York, NY
- [Investigations Engineer - Toronto](https://feeny.ai/job/investigations-engineer-toronto-gptzero-toronto-t81305ntj910) — Toronto, Canada
- [Sr. Product Manager - Toronto](https://feeny.ai/job/sr-product-manager-toronto-gptzero-toronto-4grgyraq0h20) — Toronto, Canada
- [Sr. Product Manager](https://feeny.ai/job/sr-product-manager-gptzero-new-york-1p2swvzhrn8z) — New York, NY
- [Software Developer in Test](https://feeny.ai/job/software-developer-in-test-gptzero-toronto-1fgtsc271pdp) — Toronto, Canada