Machine Learning Engineer (Staff)

GPTZero; Toronto; On-site; CAD 80,000 - 140,000; Full time

Job summary

A forward-thinking company is seeking a talented Machine Learning Engineer to join their innovative team. In this role, you will design and build next-generation platforms that verify information quality and origin, contributing to a mission that impacts society positively. You will work alongside industry veterans from leading tech companies, creating scalable ML systems and applications that resonate with millions. If you are passionate about leveraging AI for the greater good and thrive in a fast-paced environment, this opportunity is perfect for you. Join a diverse and driven team committed to making a lasting impact on the future of information integrity.

Benefits

Health, dental, and mental health benefits

Hybrid work in Toronto and NYC offices

Competitive salary

Equity

Flexible PTO

Regular company retreats

Mentorship opportunities

Wellness and learning stipend

Qualifications

• 5+ years of experience in PyTorch and Transformers.
• Led impactful ML projects with publications at top-tier conferences.

Responsibilities

• Design and fine-tune state-of-the-art language models.
• Develop AI agents with retrieval-augmented language models.

Skills

PyTorch

Transformers

Deep Learning

Machine Learning

Software Engineering

Project Management

Education

PhD in Machine Learning or related field

Bachelor's in Computer Science or related field

Tools

ML Training Systems

Inference Systems

Job description

About GPTZero

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 Uber, Meta, Amazon, Affirm, and leading AI research labs, including Princeton, Caltech, MILA, and Vector.

What we're looking for

At GPTZero, we ensure that machine learning models are created for the benefit of humanity, not the other way around.

In this role, you'll build the next-gen platform to verify the origin, quality, and factuality of the world's information. The ideal candidate is someone who has a history of ML research, 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

• Design, train, and fine-tune state-of-the-art language models
• Develop AI agents combined with retrieval-augmented language models
• Build efficient and scalable ML training and inference systems
• 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

• 5+ YOE in PyTorch/Transformers
• Led significant and impactful ML projects (such as several 1st author at top-tier conferences or deploying new capabilities in industry)
• Experience pushing the cutting-edge in deep learning and LLMs
• 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
• understanding of how machine learning models fail in the wild

Who you'll be joining

Our Team

You will be working directly with

• Alex (our CTO) R&D at Uber self-driving division and Facebook, 3 patents in ML
• George (our AI research lead) PhD from University of Toronto and ex-AWS research.
• Olivia (our head of design) on translating your research into outputs for millions of users.
• Edward (our CEO, ex-Bellingcat, Microsoft, BBC investigative journalism) to craft the messages we send to our community, and shape the GPTZero brand.

Additionally, you will be working with an experienced (eg. ex-Google, Meta, Microsoft, Bloomberg ML, Uber, Vector, MILA), diverse (eg. an engineering team with both Y-combinator and Obama scholarship recipients, a designer with art featured in the Met), anddriven (eg. an operator who has scaled a company to 100M+ revenue and is committed to doing it again) group of individuals, described by one investor as one of the strongest founding teams seen in their career.

Together, we are committed to making a permanent impact on the future of writing, and on humanity.

Our Angels and Advisors

• Tom Glocer (Legendary Reuters CEO)
• Mark Thompson (Legendary NYT CEO and current CNN chief executive)
• Jack Altman (CEO of Lattice, brother of Sam Altman)
• Karthik Narasimhan (Princeton NLP Professor, co-author of OpenAI’s original GPT paper)
• Emad Mostaque (CEO of Stability AI)
• Doug Herrington (CEO of Worldwide Amazon Stores)
• Brad Smith (President of Microsoft)
• Tripp Jones (Partner at Uncork Capital)
• Ali Partovi (co-founder of Code.org, early investor in Dropbox and Airbnb)
• Russ Heddleston (CEO of Docsend)
• Alex Mashrabov (Snapchat, Director of AI)
• Faizan Mehdi (Affinity, Director of Demand Generation)

Our Perks

• Health, dental, and mental health benefits
• Hybrid work in Toronto and NYC offices
• Competitive salary
• Equity (seed round was in March 2023, today, our metrics exceed many series A companies)
• Flexible PTO
• Regular company retreats
• Mentorship opportunities with our world-class advisors and investors
• Wellness and learning stipend