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Added 13 mins ago
K
Project Engineer/Analyst
Kinectrics
Tiverton, ON
- Full-time
Promote and support the execution of continuous improvement initiatives
Added 13 mins ago
A
Engineer, Quality Assurance
AvPosts
Calgary, AB
- Full-time
Support continuous improvement initiatives aimed at enhancing safety, regulatory compliance, operational effectiveness, and maintenance reliability.
Added 13 mins ago
C
Senior Java Engineer – Agentic AI Driven Development
Citi
Mississauga, ON
- Full-time
Drive the adoption and continuous improvement of CI/CD pipelines to facilitate rapid and reliable software delivery: Integrate AI into CI/CD processes for intelligent test case generation,…
Added 13 mins ago
M
Lead Full Stack Engineer
Manulife
Toronto, ON · Waterloo, ON
- Full-time
Set the technical direction for the design, development, testing, delivery, and continuous improvement of full-stack business applications.
Added 13 mins ago
AI/ML Engineer
Conviva
Toronto, ON
Own the end-to-end ML development lifecycle, including dataset construction, model design, training, experimentation, evaluation, and continuous improvement.
Added 29 mins ago
D
Senior System Engineer
Danaher
Concord, ON
- Full-time
…unique viewpoint matter. And by harnessing Danaher’s system of continuous improvement, you help turn ideas into impact – innovating at the speed of…
Added 29 mins ago
AG
Director, Mine Engineering
Artemis Gold - Blackwater Project
Vancouver, BC
- Other
Promote a culture of safety, operational excellence, and continuous improvement.
Added 43 mins ago
M
Lead Full Stack Engineer
Manulife
Waterloo, ON
- Full-time
Set the technical direction for the design, development, testing, delivery, and continuous improvement of full-stack business applications.
Added 43 mins ago
IG
Senior Product Engineer
Insight Global
Burlington, ON
- $110,000 to $125,000 CAD / year
- Full-time
Contribute to continuous improvement initiatives across test coverage, guard-banding, and cost reduction activities.
Added 43 mins ago
I
Technology Analyst - GenAI
Infosys
Mississauga, ON
- Full-time
…customer delight. Our always-on learning agenda drives their continuous improvement through building and transferring digital skills, expertise, and ideas from our innovation…
Added 43 mins ago
I
Technology Lead - GenAI Lead
Infosys
Mississauga, ON
- Full-time
…customer delight. Our always-on learning agenda drives their continuous improvement through building and transferring digital skills, expertise, and ideas from our innovation…
Added 43 mins ago
AI
Quality Engineer (QE) / SDET – AI Chatbot Validation
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Toronto, ON
- Full-time
Analyze test coverage, quality trends, AI evaluation results, and production feedback to identify gaps and drive continuous improvement.
Added 59 mins ago
IG
Quality Engineer – AI Chatbot Validation
IMCS Group
ON · Ontario, Canada
- Contract
Analyze test coverage, quality trends, AI evaluation results, and production feedback to identify gaps and drive continuous improvement.
Added 59 mins ago
S
Global Methods Engineer - Machining
Safran
Mirabel, QC
- Full-time
Propose product evolutions/process improvement axes.
Added 59 mins ago
MG
Senior Mechanical Designer
MISTRAS Group
AB · Calgary, AB
- Full-time
…electronics that will lead to increased workability, reliability, and continuous enhancement to Onstream’s pipeline inspection…
Added 1 hour ago
HT
PD Software for Service
Husky Technologies
Bolton, ON
- Full-time
…review meetings, attend design reviews to identify risks, submit continuous improvement ideas and submit/research technology scouting…
Added 1 hour ago
J
Project Engineer
JobsMedia.io
Blainville, QC
- Full-time
Contribute to continuous process improvement and cost management
Added 1 hour ago
E
Associate Director, Project Execution
EPCOR
AB · Edmonton, Alberta
- Full-time
…relationships and commercial commitments, and foster a culture of continuous improvement focused on safety, efficiency, customer experience, and operational…
Added 1 hour ago
M
Satellite Command & Data‑Handling (C&DH) System Engineer
MDA
Sainte-Anne-de-Bellevue, QC
- Full-time
MDA is seeking a Satellite C&DH System Engineer to support and/or design, integrate, verify, and support the on‑board command, control and data management functions for current and…
Added 1 hour ago
M
Satellite Electrical Propulsion Systems Engineer
MDA
Sainte-Anne-de-Bellevue, QC
- Full-time
MDA is seeking a Satellite Electrical Propulsion System Engineer to define, design, analyse, integrate, and verify electric propulsion (EP) subsystems (thrusters, power‑processing units,…
Added 1 hour ago
M
Satellite Flight Software (FSW) Systems Engineer
MDA
Sainte-Anne-de-Bellevue, QC
- Full-time
Participate in continuous‑improvement activities and apply lessons‑learned to future projects.
Added 1 hour ago
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Process Engineer
''
Carberry, MB
- Full-time
Drives Continuous Improvement Projects and development tools to improve processes.
Added 1 hour ago
C
Expert AI Engineering-CA
CN
Quebec, QC
- Full-time
Governance, Operations and Continuous Improvement
Added 1 hour ago
TI
Quality Engineer (QE) / SDET – AI Chatbot Validation
Tekgence Inc
Brampton, ON
- Contract
Analyze test coverage, quality trends, AI evaluation results, and production feedback to identify gaps and drive continuous improvement.
Added 1 hour ago
MC
Cloud Operations Engineer – Azure AKS Terraform (36170)
Myticas Consulting
Toronto, ON
- Full-time
Cloud Operations Engineer – Azure / AKS / Terraform

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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