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Added 2 mins ago
TG
Completions Engineer
TAQA Group
Calgary, AB
- Full-time
We are searching for a Completions Engineer. Reporting to the Manager, Drilling and Completions, you would be responsible for providing advanced technical engineering, guidance and…
Added 17 mins ago
T
Electrical & Instrumentation Engineer
Tenova
Mississauga, ON
- Full-time
The Electrical & Instrumentation (E&I) Engineer is responsible for the design, review, implementation, commissioning, troubleshooting, and continuous improvement of electrical,…
Added 17 mins ago
IT
Engineering Manager
Infinity Testing Solutions Inc.
Mississauga, ON
- $120,000 to $140,000 CAD / year
- Full-time
We are looking for an Engineering Manager who combines mechanical engineering judgment, advanced LabVIEW development and controls knowledge with the ability to coach engineers and…
Added 32 mins ago
EC
Lead Electrical Designer
EnGlobe Corp.
Calgary, AB
- Full-time
Advanced working knowledge of AutoCAD, NavisWorks, and Bluebeam Revu for digital
Added 32 mins ago
II
Lead Data Engineer
Ipsos in Canada
Vancouver, BC
- $130,000 to $140,000 CAD / year
- Full-time
Proficiency in Python and advanced working knowledge of SQL.
Added 32 mins ago
II
Senior Data Engineer
Ipsos in Canada
Vancouver, BC
- $100,000 to $110,000 CAD / year
- Full-time
5+ years of professional experience as a data engineer
Added 46 mins ago
Machine Learning Engineer
Scotiabank
Toronto, ON
Enable advanced analytics, business intelligence, regulatory reporting, and decision-support capabilities through trusted data assets.
Added 46 mins ago
Software Engineer
Scotiabank
Toronto, ON
Enable advanced analytics, business intelligence, regulatory reporting, and decision-support capabilities through trusted data assets.
Added 1 hour ago
LC
Engineer - Manufacturing Technician, Senior
Linamar Corporation
Guelph, ON
- Full-time
Job Title: Manufacturing Technician Engineer, Senior
Added 1 hour ago
KG
RPA Platform Engineer
K&K Global Talent Solutions INC.
ON · Ontario, Canada
- Full-time
We are seeking a Senior RPA Platform Engineer to architect, maintain, and scale our enterprise automation ecosystem across hybrid environments, including on-premises architecture, AWS…
Added 1 hour ago
M
Staff Engineer - Backend & Architecture
MapsPeople
Toronto, ON
- Full-time
…connected environments. As we scale, we're looking for a Staff Engineer to help shape the technical direction of our…
Added 1 hour ago
M
Project Manager
Metrolinx
Toronto, ON
- Full-time
…including monitoring and project reporting through the use of advanced financial/project management…
Added 1 hour ago
PI
Head of Marketing and Brand
Pack-Smart Inc.
Concord, ON
- $100,000 to $120,000 CAD / year
- Full-time
If you want to work on advanced automation systems, solve meaningful engineering challenges, and build machines for some of the world’s biggest brands - we want to hear from you.
Added 1 hour ago
MH
HVDC Design Engineer (Electrical/Computer Engineer)
Manitoba Hydro
Winnipeg, MB
- Full-time
We are seeking a Senior HVDC Design Engineer to join the Station Design Department and help design, modernize, and support critical HVDC converter and transmission station infrastructure.…
Added 1 hour ago
A
Intermediate Cost Analyst
AtkinsRéalis
Mississauga, ON
- Full-time
Advanced Microsoft Excel skills and experience developing complex analytical models.
Added 2 hours ago
SS
Machine Learning Engineer
Sapphire Stream Technology
Toronto, ON · Greater Toronto Area, Canada
- Full-time
…learning, semiconductor technologies, automotive solutions, and advanced engineering…
Added 2 hours ago
SS
Senior Validation Engineer- Agentic AI
Sapphire Stream Technology
Toronto, ON · Greater Toronto Area, Canada
- Full-time
SST is seeking an experienced Senior Agentic AI – Validation & Automation Engineer to join our engineering team in Markham, Ontario.
Added 2 hours ago
Materials Engineer, Nuclear Industry
BWXT
Cambridge, ON
As our Materials Engineer, you will support the design, fabrication, and maintenance of nuclear pressure‑retaining components by providing expert guidance on material selection, testing,…
Added 2 hours ago
JT
Senior Data Engineer
Javelin Technologies
Canada
- Full-time
As Senior Data Engineer / Data Scientist, you will design, build, and operate the group's data ecosystem: integrating data from our core business systems, developing robust pipelines,…
Added 2 hours ago
B
AI Trainer: Mechanical Engineers CAD
Brunel
Remote, Canada
- $40 to $125 USD / hour
- Full-time
- Remote
Test engineering problems against advanced AI models and refine them to appropriately challenge the models’ reasoning capabilities.
Added 3 hours ago
SS
Senior DevOps
Safe Software
Remote, Canada
- Full-time
- Remote
Safe Software is looking for Senior DevOps to join our DevOps team. As a Senior DevOps engineer, you will lead the design and implementation of scalable CI/CD pipelines, develop and…
Added 4 hours ago
Certification Engineer Co-op
Moment Energy
Surrey, BC
…put them to work by repurposing large-format batteries into advanced battery energy storage systems that deliver real-world…
Added 7 hours ago
A
Lead Scheduling Engineer (Relocation to Saudi Arabia is required.)
aramco
Calgary, AB · Greater Calgary Metropolitan Area
- Full-time
We are seeking a Scheduling Engineer to join Project Control Division of Producing Project Management Department (PPMD) under Producing.
Added 7 hours ago
J
Power Systems Engineer II
Jobgether
Canada
- Full-time
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Power Systems Engineer II based in Canada.
Added 7 hours ago
A
Linear Programming Engineer- Candidate must relocate to Saudi Arabia
aramco
Calgary, AB
- Full-time
You will hold a Bachelor's degree in Chemical Engineering or related specialization from a recognized and approved program. An advanced degree is preferred.

Sapphire Stream Technology

Machine Learning Engineer

Toronto, ON, Canada
Greater Toronto Area, Canada, Canada

Full-time

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Job details

Job type: Full-time
Apply by: Dec 2, 2026
Posting language: English
Posted: Nov 2, 2026

Original job description

About Sapphire Stream Technology

Sapphire Stream Technology (SST) is a technology and engineering solutions company specializing in software development, AI and machine learning, semiconductor technologies, automotive solutions, and advanced engineering services.

We collaborate with leading global technology companies to deliver innovative engineering solutions and support the development of next-generation products.

As we continue to expand our presence in North America, we are looking for talented engineers who are passionate about emerging technologies, solving complex technical challenges, and contributing to advanced AI and computing solutions.

Position Overview

SST is seeking a Machine Learning Software Engineer – GPU & AI Optimization to join our growing engineering team in Markham, Ontario.

The successful candidate will work on advanced machine learning software development, GPU computing, and performance optimization for next-generation computing platforms.

This role involves developing and optimizing machine learning kernels, leveraging agentic AI workflows to improve engineering productivity, and collaborating with cross-functional engineering teams to enhance software performance, computational efficiency, and power optimization.

We are looking for an enthusiastic, technically strong individual who enjoys working on complex engineering challenges and exploring innovative approaches to AI and GPU software development.

Key Responsibilities

Develop, implement, and optimize machine learning software, GPU kernels, and computational workloads for advanced computing platforms.
Leverage agentic AI tools and workflows to accelerate software development, testing, debugging, and optimization.
Support software and workload development across pre-silicon and post-silicon development environments.
Design and maintain efficient machine learning kernels, kernel fusion techniques, and performance optimization solutions.
Develop clean, maintainable, and testable C++ and Python code, including microbenchmarks and automated regression tests.
Optimize GPU execution parameters, including tile sizes, block configurations, and memory layouts, to improve latency, throughput, and power efficiency.
Support runtime integration, deployment, and performance tuning across machine learning inference frameworks and computing platforms.
Analyze GPU performance using profiling tools and performance metrics to identify bottlenecks and optimization opportunities.
Collaborate with software, hardware, runtime, and machine learning engineering teams to improve system-level efficiency.
Participate in technical design discussions, code reviews, debugging, and continuous improvement initiatives.
Contribute to the development of innovative engineering solutions for emerging AI and high-performance computing applications.

Required Qualifications

Bachelor's or Master's degree in Computer Science, Computer Engineering, Software Engineering, Computer Systems, or a related technical discipline.
Strong programming proficiency in C++ and Python.
Solid understanding of software engineering principles, algorithms, data structures, and performance optimization.
Knowledge of machine learning concepts, numerical computing, and linear algebra.
Experience developing, debugging, and testing complex software applications.
Strong analytical and problem-solving abilities.
Excellent communication, collaboration, and teamwork skills.
Ability to work effectively in a fast-paced, collaborative engineering environment.

Preferred Qualifications

Practical experience using agentic AI workflows, AI coding assistants, or AI-driven development tools to improve engineering efficiency.
Experience with GPU computing or parallel programming technologies such as CUDA, HIP, or OpenCL.
Familiarity with GPU graphics programming technologies such as DirectX or Vulkan.
Experience developing and optimizing machine learning kernels and GPU-accelerated workloads.
Understanding of machine learning architectures, including Transformers, U-Nets, and Convolutional Neural Networks (CNNs).
Familiarity with pre-silicon software development or hardware emulation platforms such as FPGA, ZeBu, or Veloce.
Experience with performance profiling tools and GPU performance metrics, including occupancy, memory bandwidth, FLOPs, and roofline analysis.
Knowledge of kernel fusion, memory optimization, parallel execution, and high-performance computing.
Experience with machine learning inference frameworks, runtime integration, or production software deployment.
Exposure to hardware-software co-optimization and power-efficient computing.

Why Join SST?

Work on advanced AI, machine learning, and GPU computing technologies.
Contribute to challenging engineering projects involving next-generation computing platforms.
Collaborate with experienced engineering professionals and global technology teams.
Gain exposure to emerging technologies in semiconductor engineering and high-performance computing.
Be part of SST's growing North American engineering organization.

Work Location

Markham, Ontario, Canada – Onsite

This position requires working onsite and collaborating closely with engineering teams.

Equal Opportunity Employer

Sapphire Stream Technology is committed to providing an inclusive and respectful workplace. Employment decisions are based on qualifications, experience, and business requirements, in accordance with applicable employment and human rights legislation.

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More about this job

Responsibilities

Develop and optimize machine learning software, GPU kernels, and computational workloads, including kernel fusion, execution tuning, and performance analysis. Use agentic AI workflows and collaborate with software, hardware, runtime, and machine learning teams to improve performance, efficiency, and power optimization across pre-silicon and post-silicon environments.

Requirements

A bachelor's or master's degree in computer science, computer engineering, software engineering, computer systems, or a related discipline is required, along with strong C++ and Python skills. Candidates should understand software engineering, algorithms, data structures, machine learning, numerical computing, and linear algebra, and bring strong analytical, problem-solving, communication, and teamwork abilities.

Skills

C++
Python
Machine Learning
GPU Computing
GPU Kernel Optimization
CUDA
HIP
OpenCL
Parallel Programming
Performance Profiling
Kernel Fusion
Linear Algebra
Machine Learning Inference
AI Coding Assistants
DirectX
Vulkan

Visa sponsorship

Not detected in the job text

Keywords

Machine Learning
GPU Computing
C++
Python
CUDA
HIP
OpenCL
DirectX
Vulkan
Agentic AI Workflows
AI Coding Assistants
GPU Kernels
Kernel Fusion
Performance Optimization
Performance Profiling
Pre-Silicon Development
Post-Silicon Development
FPGA
ZeBu
Veloce
Transformers
U-Nets
Convolutional Neural Networks
Machine Learning Inference
Runtime Integration
Memory Bandwidth
Occupancy
Roofline Analysis
High-Performance Computing
Hardware-Software Co-Optimization

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