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Added 4 mins ago
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Upstream Engineer - Students Seeking Opportunities
Imperial Oil
Calgary, AB
- Full-time
Added 4 mins ago
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Train Conductor - BC North (TCRC)
CN
Terrace, BC
- Full-time
Write and pass safety and rules exams (as per collective agreement, subsequent mandatory Locomotive Engineer qualification to retain seniority and employment)
Added 19 mins ago
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Structural Engineer Intermediate
Sedgman
Montreal, QC
- Full-time
Sedgman Novopro Ltd is currently looking for a Structural Engineer to join our team in Montreal, Quebec. He/she will be responsible for providing technical support on structural engineering…
Added 34 mins ago
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Systems Installation Integration Engineer
SEGULA Technologies
Montreal, QC
- Full-time
Position Overview: We are seeking a Systems Installation Integration Engineer to lead key design work packages and resolve complex physical integration challenges for aircraft development…
Added 34 mins ago
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Senior Systems Installation Integrator
SEGULA Technologies
Montreal, QC
- Full-time
Position Overview: We are seeking a Senior Systems Installation Integration Engineer to provide high-level technical leadership for complex aircraft development and sustaining initiatives.…
Added 34 mins ago
ST
EWIS Integrator (Senior Level)
SEGULA Technologies
Montreal, QC
- Full-time
Position Overview: We are seeking a Senior EWIS Integration Engineer to provide high-level technical leadership for complex aircraft development programs and sustaining initiatives. In this…
Added 34 mins ago
ST
EWIS Integrator (Mid Level)
SEGULA Technologies
Montreal, QC
- Full-time
Position Overview: We are seeking a mid-level EWIS Integration Engineer to lead core work packages and resolve complex electrical wiring physical integration challenges on aircraft…
Added 50 mins ago
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Structural Engineering Graduate
AECOM
Pickering, ON
- $65,000 to $75,000 CAD / year
- Full-time
Conducts engineering design under the supervision of an experienced engineer.
Added 50 mins ago
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Electrical Engineering Graduate
AECOM
Markham, ON
- $65,000 to $75,000 CAD / year
- Full-time
Under the responsible charge of a Professional Engineer:
Added 1 hour ago
EI
Software Development Manager
EBlock Inc.
Canada
- $160,000 to $180,000 CAD / year
- Full-time
…Director of Product and Engineering. This is a role for an engineer who leads, not a manager who used to build. You will lead a team of seven to eight experienced engineers who already own…
Added 1 hour ago
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Jr. Project Manager - Jayman Living Mixed Use
Jayman Built
Calgary, AB
- $80,000 to $90,000 CAD / year
3-5 years in construction as a Project Coordinator, Project Engineer, or similar role.
Added 1 hour ago
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Machine Learning Engineer
AgileGrid Solutions
Canada
- Full-time
We are seeking a talented and driven Machine Learning Engineer to join the Qualcomm AI Processor Solutions team. This role offers an exciting opportunity to contribute to the development of…
Added 1 hour ago
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Tunnel Engineer
FCC Canada
Toronto, ON
- $95,000 to $115,000 CAD / year
The Tunnel Shift Engineer is responsible for providing engineering and technical support during night-shift tunnel construction activities. The role supports the safe and efficient…
Added 1 hour ago
BG
Estimator, Senior
BV GLAZING
Niagara Falls, ON
- $85,000 to $95,000 CAD / year
- Full-time
…From Toronto to Texas, we are vertically integrated to design, engineer, manufacture and install the complete building envelope with today’s most ambitious developers. Serving both…
Added 1 hour ago
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JR DESIGNER
BV GLAZING
Concord, ON
- $50,000 to $65,000 CAD / year
- Full-time
…From Toronto to Texas, we are vertically integrated to design, engineer, manufacture and install the complete building envelope with today’s most ambitious developers. Serving both…
Added 1 hour ago
BG
Junior Project Operations Manager
BV GLAZING
Niagara Falls, ON
- $50,000 to $80,000 CAD / year
- Full-time
…From Toronto to Texas, we are vertically integrated to design, engineer, manufacture and install the complete building envelope with today’s most ambitious developers. Serving both…
Added 1 hour ago
MO
Project Technician – Tier 3 Network & Infrastructure Specialist
MSP OPERATIONAL CORP
Guelph, ON · London, ON
- $90,000 to $100,000 CAD / year
…environments. This role is ideal for a senior technician or engineer who is equally comfortable configuring firewalls and switches and deploying Windows server infrastructure, hypervisors,…
Added 1 hour ago
Technical Inside Sales Specialist
Nanometrics Inc
Ottawa, ON
Synthesize frontline feedback to recommend hardware or solution improvements to the Solutions Engineer or Product Management, acting as the voice of the customer.
Added 1 hour ago
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Member of Technical Staff (Fullstack) (Toronto)
Solstice
Toronto, ON
- Full-time
We're building Solstice to automate compliant, reference-backed pharma marketing. As a founding full-stack engineer on our Toronto team, you'll own core parts of the application stack,…
Added 1 hour ago
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Member of Technical Staff - Fullstack AI Engineer (Toronto)
Solstice
Toronto, ON
- Full-time
We're looking for a Fullstack AI Engineer to build and maintain our agent platform and bring its capabilities into the product. You'll own work across backend services, APIs, agent…
Added 1 hour ago
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Senior Member of Technical Staff (Applied AI) (Toronto)
Solstice
Toronto, ON
- Full-time
We're hiring a senior Applied AI engineer to own the technical direction of our AI systems: retrieval, generation, verification, evaluation, and keeping systems running in production.…
Added 2 hours ago
PC
WE’RE LOOKING FOR A CIVIL/SITE PROJECT ENGINEER.
Page Consultants, Inc.
ON · Regional Municipality of York, ON
- Full-time
…looking to add an experienced and enthusiastic civil project engineer to our team. For more than 30 years, Page Consultants Inc. has put into motion the right team of experienced designers…
Added 2 hours ago
DB
drafting technologist
DMD Building Systems
Toronto, ON · Etobicoke, ON
- Full-time
Added 2 hours ago
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I&C Engineer
AtkinsRéalis
Mississauga, ON
- Full-time
An Instrumentation and Controls (I&C) engineer/designer is required to work on the design and development of I&C systems on projects involving new designs and/or enhancements (via Services…
Added 2 hours ago
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Senior I&C Engineer
AtkinsRéalis
Mississauga, ON
- Full-time
A Senior Instrumentation and Controls (I&C) engineer is required to work on the design and development of I&C systems on projects involving new designs and/or enhancements (via Services…

HeyGen

Applied AI Engineer, Video Agent

Toronto, ON, Canada

$180,000 – $240,000 annually

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Job details

Pay: $180,000 – $240,000 annually
Posting language: English
Posted: Oct 2, 2026

Original job description

About HeyGen

At HeyGen, our mission is to make visual storytelling accessible to all. Over the last decade, visual content has become the preferred method of information creation, consumption, and retention. But the ability to create such content, in particular videos, continues to be costly and challenging to scale. Our ambition is to build technology that equips more people with the power to reach, captivate, and inspire audiences.
Learn more at www.heygen.com. Visit our Mission and Culture doc here.

About the Video Agent team

Video Agent turns a prompt, a document, or a handful of assets into a finished video. Behind a simple chat box sits a multi-step AI agent. It plans a storyboard, writes the script, chooses avatars, voices, and visuals, calls many tools along the way, and hands the result to our rendering pipeline. Customers use it every day to make training videos, product explainers, marketing content, and more.

We are a small team that owns the agent end to end. That covers the prompts and tools the agent uses, the backend services that run it, and the product screens where people chat with it and edit what it makes.

This is not a role where you only call someone else’s model through an API. HeyGen trains its own models in house, and the agent is built on top of them. You will work directly with those models and with the researchers who build them, which is an experience few applied AI roles offer.

About the role

You will make Video Agent better at doing what the user actually asked for, and you will prove it with data. Some weeks that means redesigning a tool the agent calls. Other weeks it means building an eval, running an A/B test, or shipping a new editing experience in React. You will own features from the first idea through launch and follow-up, and you will decide which problems belong to the model and which belong to plain, deterministic code.

What you’ll do

Build the agent. Design the tools, prompts, and context the agent works with. Improve how it plans, how it recovers from mistakes, and how it handles long, multi-turn conversations.
Measure quality. Build evals and offline replays of real sessions. Run experiments behind feature flags and read the results honestly. Watch real user sessions and agent traces to find where things go wrong.
Ship across the stack. Build user-facing features in TypeScript and React. Build backend services and long-running workflows in Python and Go.
Work closely with others. Partner with product managers, designers, and the research and rendering teams that the agent depends on.

What we’re looking for

You have built and shipped an AI agent that real people use. We mean a system where a model calls tools, plans across several steps, and acts on the results. A chat wrapper or a prompt demo is not enough on its own. We want to hear what broke in production and how you fixed it.
You know how to tell whether an AI system got better. You have built evals or test sets for model behavior. You can tell a real improvement from noise, and you are skeptical of results that look too good.
You are a strong full-stack engineer. You have 2 or more years of professional experience. You are fluent in TypeScript and React on the frontend and Python on the backend.
You have strong product sense. You use what you build, you care how it feels, and you look at how customers actually use it.
You take ownership. You do not wait for a spec. You find the most important problem, fix it, and tell people what changed.

A degree in computer science or a related field is welcome but not required. Equivalent experience counts.

Nice to have

You have fine-tuned models before.
You have worked on code-to-video models, which generate video by writing code such as HTML or animation scripts.
You have worked on video agent models in general.

Show us an agent you’ve built

With your application, please include a short note (a few sentences is fine) about an agent you have built. Tell us what it does, how you measured whether it worked, and one failure you found and fixed. A link to code, a demo, or a write-up is a bonus.

Compensation & Benefits

$180,000 – $240,000 annually
Equity in a high-growth AI company.
401K Match
Health, dental, and vision benefits.
Flexible PTO.
Opportunity to help define a new category in AI video.
High ownership, high velocity, and direct impact on revenue growth.

Equal Opportunity

HeyGen is an Equal Opportunity Employer. We value diversity and are committed to building an inclusive environment for all employees.

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More about this job

Responsibilities

You will design and build AI agents that plan, execute tasks, and handle multi-turn conversations while managing the full-stack implementation. Additionally, you will measure agent performance through data-driven evaluations and experiments to improve user-facing features.

Requirements

You must have at least 2 years of professional experience with strong proficiency in TypeScript, React, Python, and Go. A proven track record of shipping AI agents that utilize tool-calling and planning capabilities is required.

Skills

AI Agent Development
TypeScript
React
Python
Go
Model Fine-tuning
Prompt Engineering
System Architecture
Data Analysis
A/B Testing
Evaluation Frameworks
Full-stack Development
Product Sense
Workflow Automation
API Integration

Benefits

Equity
401k Match
Health Insurance
Dental Insurance
Vision Insurance
Flexible PTO

Visa sponsorship

Not detected in the job text

Keywords

AI Agent
TypeScript
React
Python
Go
Machine Learning
Full-stack
Prompt Engineering
A/B Testing
Data Evaluation
Backend Services
Workflow Automation
Video Generation
Fine-tuning
Product Development
Software Engineering
API
Rendering Pipeline
User Experience
Scalability

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