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Added 19 mins ago
SoC Lead Engineer – LEC & Low Power Signoff
Advanced Micro Devices, Inc
Markham, ON
Full-time
We are seeking a technical lead with strong ownership to drive Low Power Static Verification and Logical Equivalence Check (LEC) signoff as part of our SoC (System-on-Chip) development…
Added 19 mins ago
Silicon Design Engineer
Advanced Micro Devices, Inc
Markham, ON
Full-time
The ideal candidate is a highly analytical engineer with strong problem-solving skills and attention to detail, capable of independently driving complex technical tasks to completion. They…
Added 19 mins ago
RTL/Firmware Design Engineer
Advanced Micro Devices, Inc
Markham, ON
Full-time
RTL/Firmware Design Engineer (New College Grad)
Added 19 mins ago
Firmware Engineer
Advanced Micro Devices, Inc
Vancouver, BC
Full-time
Experience with DDR/JEDEC standard IP, DDR PHY, or Memory Controller firmware development.
Added 19 mins ago
Silicon Design Infrastructure Hardware/Software Engineer
Advanced Micro Devices, Inc
Markham, ON
Full-time
Strong software background with proficiency in Perl, Python, Tcl, and/or shell scripting
Added 19 mins ago
Silicon Design Engineer
Advanced Micro Devices, Inc
Markham, ON
Full-time
A talented electrical or computer engineering recent grad with demonstrated strong academic records of relevant courses and projects in hardware logic design and computer architecture,…
Added 19 mins ago
Silicon Design Engineer
Advanced Micro Devices, Inc
Vancouver, BC
Full-time
Experience with C/C++, Python, TCL, and/or SystemVerilog.
Added 1 hour ago
Software Engineer, GPU Performance
HeyGen
Toronto, ON
Proficiency in Python and experience with PyTorch or a similar machine learning framework.
Added 1 hour ago
Senior Data Engineer, Analytics
nesto
Vancouver, BC
Full-time
…innovation, we help clients navigate complex financing opportunities with…
Added 1 hour ago
Senior Data Engineer, Analytics
nesto
Vancouver, BC
Full-time
…innovation, we help clients navigate complex financing opportunities with…
Added 2 hours ago
Business Systems Engineer Intern, Finance Technology (Summer 2027)
Lyft
Toronto, ON
$40 to $43 CAD / hour
Experience with automation tools such as Jira automation, Python scripting
Added 2 hours ago
Senior Software Engineer
Autodesk
Toronto, ON · AMER - Canada - Ontario - Toronto - University Ave
Full-time
This is a high-impact engineering role with real architectural ownership.
Added 2 hours ago
DevOps Specialist
Manulife
Toronto, ON
Full-time
…will be comfortable working in Agile environments, partnering with technical and business stakeholders, and driving operational excellence through modern DevOps…
Added 3 hours ago
Machine Learning Engineer Intern
Jobright.ai
Canada
Internship
…helps users reach better job outcomes. The Machine Learning Engineer Intern will develop and evaluate machine-learning features, support data pipelines and integrations, investigate model…
Added 3 hours ago
Machine Learning Engineer - Early Career (Canada)
Jobright.ai
Canada
Full-time
…job search. They are seeking an Early Career Machine Learning Engineer to design, build, and maintain scalable infrastructure for AI agents, as well as optimize data processing and develop…
Added 3 hours ago
Machine Learning Engineer - Early Career (Canada)
Jobright.ai
Canada
Full-time
…job search. They are seeking an Early Career Machine Learning Engineer to design, build, and maintain scalable infrastructure for AI agents, as well as optimize data processing and develop…
Added 3 hours ago
Sr. Integration Architect - Automation
Infotree Global Solutions
Toronto, ON
Contract
Job Title: Sr Integration Engineer (Intelligent Automation)
Added 3 hours ago
Data Engineer (Early Career) (Canada)
Jobright.ai
Canada
Full-time
…the job search process. They are seeking an early-career Data Engineer to design and build data pipelines, ensuring data quality and collaborating with analytics and product…
Added 3 hours ago
DevOps Engineer, New Grad
Jobright.ai
Canada
Full-time
Scripting experience with Python, Bash, or a similar language
Added 3 hours ago
AI Engineer, Agent Product (Full-time/Part-time) (Canada)
Jobright.ai
Canada
Full-time · Part-time
Jobright is a rapidly growing AI job search platform in the U.S. that aims to simplify the job search process. The AI Engineer will be responsible for designing, building, and deploying AI…
Added 3 hours ago
Senior Machine Learning Engineer // Toronto, ON // Hybrid : FTE
AceStack
Toronto, ON
Full-time
We are seeking an experienced Senior Machine Learning Engineer to support the AI CoE’s Machine Learning and Data Science initiatives. The ideal candidate will have strong hands-on expertise…
Added 3 hours ago
Python & Java AI Developer
Zodiac Solutions, Inc
Toronto, ON
Full-time
We are seeking an experienced Senior AI Software Engineer to support an enterprise AI initiative from use-case discovery through production implementation. The role combines strong Python…
Added 3 hours ago
Software Engineer, Payments and Revenue
Mecka
Richmond Hill, ON
$150,000 to $180,000 CAD / year
Full-time
We work closely with frontier robotics teams to bridge real-world data, simulation, learning-based systems, and deployed hardware.
Added 3 hours ago
Principal Software Engineer, Full-Stack Development
Zynga
Toronto, ON
$118,300 to $168,300 CAD / year
…company's games - Central Technology! As a Principal Software Engineer, you will be responsible for the technical vision, design and implementation of AI-powered tools and systems that…
Added 3 hours ago
Full Stack Software Engineer, New Grad
Jobright.ai
Canada
Full-time
Experience with React, Next.js, Node.js, Python, or similar technologies

HeyGen

Software Engineer, GPU Performance

Toronto, ON, Canada

Posting language: English
Posted: Sep 28, 2026

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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.

Position Summary

HeyGen is building AI applications including Avatar IV, Photo Avatar, Interactive Avatar, and Video Translation. We’re looking for a Software Engineer focused on GPU performance to make the systems behind these experiences faster and more efficient.

You will work across model execution and inference infrastructure, using profiling and measurement to improve latency, throughput, and GPU cost. This role is a fit for an engineer who enjoys understanding how software uses the hardware beneath it.

Key Responsibilities

Use NVIDIA Nsight Systems, Nsight Compute, and PyTorch Profiler to investigate GPU utilization, kernel execution, memory bandwidth, and CPU–GPU data movement.
Identify bottlenecks across model execution, preprocessing, and inference serving, then measure the impact of each optimization.
Improve performance through batching, scheduling, memory management, and better GPU utilization.
Develop or integrate high-performance GPU kernels when existing implementations limit performance.
Build benchmarks and automated checks that catch performance regressions across representative video workloads.
Collaborate with AI researchers and infrastructure engineers to bring optimizations into production.
Measure the effect of changes on latency, throughput, cost, and output quality.

Qualifications

Experience optimizing GPU-based AI workloads or high-performance computing systems.
Proficiency in Python and experience with PyTorch or a similar machine learning framework.
Strong curiosity about GPU hardware, including memory bandwidth, cache behavior, tensor cores, and data movement between CPU and GPU.
Experience using profiling tools to connect hardware behavior to application-level bottlenecks and validate improvements.
Ability to turn performance experiments into reliable production changes and communicate tradeoffs clearly.

Preferred Qualifications

Experience with CUDA, Triton, or C++ GPU programming.
Experience optimizing video, image, audio, diffusion, or Transformer models.
Familiarity with multi-GPU inference, GPU interconnects, quantization, or large-scale model serving.
Experience building performance benchmarks or regression testing infrastructure.
Prior experience in a fast-paced technology environment.

What HeyGen Offers

Competitive salary and benefits package.
Dynamic and inclusive work environment.
Opportunities for professional growth and advancement.
Collaborative culture that values innovation and creativity.
Access to the latest technologies and tools.

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

Join us at HeyGen

Help us make AI video faster and more accessible. We’d love to hear from you.

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More about this job

Responsibilities

The engineer will optimize GPU performance for AI applications by identifying bottlenecks in model execution and inference infrastructure. They will develop high-performance kernels and implement optimizations to improve latency, throughput, and GPU cost.

Requirements

Candidates must have experience optimizing GPU-based AI workloads and proficiency in Python with machine learning frameworks. Strong knowledge of GPU hardware architecture and experience with profiling tools are essential for this role.

Skills

GPU performance optimization
Python
PyTorch
NVIDIA Nsight Systems
NVIDIA Nsight Compute
PyTorch Profiler
CUDA
Triton
C++
Inference infrastructure
Memory management
Performance benchmarking
Kernel execution
Quantization
Transformer models

Benefits

Competitive salary
Professional growth opportunities
Inclusive work environment
Access to latest technologies

Visa sponsorship

Not detected in the job text

Keywords

Software Engineer
GPU Performance
AI
Avatar
Inference
Latency
Throughput
NVIDIA Nsight
PyTorch
Memory Bandwidth
Kernel Execution
Batching
Scheduling
CUDA
Triton
C++
Diffusion Models
Transformer Models
Multi-GPU
Quantization
Regression Testing
Profiling
Hardware
Data Movement
Tensor Cores

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