Find work in Canada.

327,133 jobs across our Canadian network. How we count

Jobs in Canada

25+ jobs

Email me new jobs Save this search

Added 13 mins ago
Full Stack Engineer, Enterprise Engineering
Stripe
Canada
…consistently great and smooth experience when migrating sensitive data onto…
Added 58 mins ago
Director - Enterprise Data Warehouse and Data Platforms
CGI
Ottawa, ON
Full-time
Provide technical leadership across enterprise data warehousing, data modelling, ETL/ELT, batch and streaming pipelines, data quality, metadata, governance, security, and analytics.
Added 1 hour ago
Principal Mechanical Engineer
Worley
Edmonton, AB · Calgary, AB
Full-time
We are currently seeking a Principal Metallurgical Engineer to join our Canada West Engineering team in either Calgary, Alberta or Edmonton, Alberta. This role is a senior technical…
Added 1 hour ago
Senior DevOp Engineer
MarkiTech.AI
Toronto, ON
$70 to $85 CAD / hour
Contract
About the Job Senior DevOps Engineer (alternate: Senior Cloud / Platform Engineer) About the role:
Added 1 hour ago
Civil Structural Designer
HOCS Projects
Calgary, AB
Full-time
…support multi‑discipline engineering teams by producing high‑quality civil and structural design deliverables using major 3D plant design platforms. This role requires strong technical…
Added 1 hour ago
Process & Project Engineer - Warehouse & Distribution (BDL)
Brewers Retail Inc
Port Coquitlam, BC
We are currently searching for a Process & Project Engineer – Warehouse & Distribution, reporting to the Director, Engineering and Capital Projects. This vacancy is a full-time, permanent…
Added 2 hours ago
Senior Tritium Engineer
Kinectrics
Toronto, ON
Full-time
…discipline. A Master's degree or Ph.D. is preferred. A Professional Engineer (P.Eng.) designation, or eligibility for registration with a recognized professional engineering body, is an…
Added 2 hours ago
Director, Fire Protection Engineering - Eastern Canada
AtkinsRéalis
Montreal, QC
Full-time
We're AtkinsRéalis, a world-class engineering services and nuclear organization. We connect people, data and technology to transform the world's'infrastructure and energy systems. Together,…
Added 2 hours ago
Full Stack Engineer - Long term care applications
Primacare Living Solutions
Brampton, ON
Contract
Role Description The Full Stack Engineer for long-term care applications is a full-time, on-site role based in Brampton, ON. This role is responsible for designing, developing, and…
Added 2 hours ago
Senior Engineer, Power Transformer Services
Kinectrics
Toronto, ON
Contract
Plan, supervise, and execute transformer oil sampling, dissolved gas analysis programs, oil quality assessments, oil processing and reclamation activities, and transformer dry out projects.…
Added 3 hours ago
Senior Software Engineer
7shifts
Toronto, ON
Full-time
…operation. You'll work closely with a product counterpart, the data team, and report into a Director of Software…
Added 3 hours ago
Ingénieur en amélioration continue / Continuous Improvement Engineer - French
Wonderbrands
Longueuil, QC
Full-time
Reporting to the team leader of the continuous improvement engineer, the continuous improvement engineer will initiate and lead the execution of projects related to the standardization of…
Added 3 hours ago
Software Engineer
7shifts
Toronto, ON
Full-time
…that ship. You'll work closely with a product counterpart, the data team, and report into a Director of Software Development. AI is part of the toolkit here - you use it actively, you know…
Added 3 hours ago
RTL/Firmware Design Engineer
Advanced Micro Devices, Inc
Markham, ON
Full-time
RTL/Firmware Design Engineer (New College Grad)
Added 3 hours ago
Senior Manager, Major Projects Advisory
KPMG
ON · Toronto, Ontario
Full-time
As a Senior Manager within KPMG’s Major Projects Advisory team, you will support the delivery of high-quality services to top-tier public and private sector clients including government…
Added 4 hours ago
Staff Software Engineer, Acquisition
Brex
Vancouver, BC
Set technical direction for cross-team systems, including architecture, platform boundaries, reliability, and data quality.
Added 4 hours ago
Group Manager – Flow Monitoring
AECOM
Markham, ON
$130,000 to $160,000 CAD / year
Full-time
Strong analytical skills for data quality control and reporting.
Added 4 hours ago
Pea Protein Shift Supervisor
Louis Dreyfus Company
Yorkton, SK
Full-time
Conducts quality control tests, food safety tests, enters data, and operates the HMI in the plant as needed to support the process operators.
Added 4 hours ago
Software Engineer, GPU Performance
HeyGen
Toronto, ON
…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…
Added 4 hours ago
Quality Manager
Remote Robotic
Ottawa, ON · Kanata, ON
$90,000 to $110,000 CAD / year
Full-time
Use quality data to support decision-making and continuous improvement.
Added 4 hours ago
Software Tester
VySystems
Canada
Full-time
We are seeking a Senior Data Engineer with strong Quality Engineering (SDET) experience. The role is primarily focused on building and validating data solutions using Databricks, Python,…
Added 4 hours ago
Senior Backend Engineer, NodeJS | LATAM
Deel
Canada
Full-time
Provide an Exceptional, Customer-Centric Experience: Ensure top-tier products and services through quality engineering and attentive, customer-focused development.
Added 4 hours ago
DevOps Manager
Rightsline Inc
Toronto, ON
$85,000 to $95,000 CAD / year
…You will manage and develop a team of five - a Senior DevOps Engineer, a DevOps Engineer, and two Senior Systems Engineers - and hold end-to-end accountability for the infrastructure our…
Added 4 hours ago
Engineer (Electrical Power) - High Current Lab
Kinectrics
Toronto, ON
Full-time
Position: Engineer/Analyst (Electrical Power) - High Current Lab
Added 4 hours ago
Manager, Software Engineering
AltaML
Toronto, ON
Full-time
We overpay for the right people. We'd rather pay a premium for an engineer who embodies this and multiplies the team than save money on someone who doesn't.

HeyGen

Software Engineer, GPU Performance

Toronto, ON, Canada

Posting language: English
Posted: Sep 28, 2026

Apply About employer

Applications open in a new tab.

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.

Apply About employer

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

Report this job