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Added 15 hours ago
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Staff Software Engineer, Infrastructure
Stream
Toronto, ON
- Full-time
- Hybrid
- A software engineer who has built systems, not only configured them. You write production code in Go, Python or a similar language. Scripting-only backgrounds are not a fit.
Added 15 hours ago
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Staff Software Engineer, Issues
Sentry
Toronto, ON
- $253,000 to $316,000 CAD / year
- Full-time
- Hybrid
As a Staff Software Engineer on the Issues team, you'll set technical direction for the core system that makes this work. This space is moving fast and we expect what we ship to…
Added 15 hours ago
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Senior Software Engineer, Evaluation Infrastructure
Waabi
Toronto, ON
- $127,000 to $223,000 USD / year
- Full-time
- Hybrid
Proficient in Python programming and strong software engineering fundamentals with real-world experience writing high quality, well-structured, and well-tested code.
Added 15 hours ago
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Senior Software Engineer, Auto Labelling
Waabi
Toronto, ON
- $170,000 to $220,000 USD / year
- Full-time
- Hybrid
Proficient in Python with a track record of writing high-quality, well-structured, and well-tested "production-grade" code.
Added 15 hours ago
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Senior / Staff Software Engineer, ML Datasets & Data Pipelines
Waabi
Toronto, ON
- $148,000 to $260,000 USD / year
- Full-time
- Hybrid
As a Senior/Staff Software Engineer embedded within our Autonomy & Algorithms team, you will build the scalable ML data pipelines necessary to train and evaluate Waabi’s autonomous driving…
Added 15 hours ago
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Senior / Staff Software Engineer, Mapping
Waabi
Toronto, ON
- $141,000 to $242,000 USD / year
- Full-time
- Hybrid
…intelligence of our autonomous fleet. As a Senior or Staff Software Engineer on our Mapping team, you will act as a versatile, foundational builder for our highly scalable, AI-driven…
Added 15 hours ago
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Senior / Staff Software Engineer, Localization
Waabi
Toronto, ON
- $141,000 to $242,000 USD / year
- Full-time
- Hybrid
…where is the vehicle right now? As a Senior or Staff Software Engineer on the Localization team, you will be a domain expert architecting the highly precise, robust state estimation systems…
Added 15 hours ago
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Research Engineer, World Models
Waabi
Toronto, ON
- $155,000 to $269,000 USD / year
- Full-time
- Hybrid
…scalable, controllable, and efficient simulation. As a Research Engineer in the World Models team, you will develop algorithms and productionize the next generation of World Models that can…
Added 15 hours ago
Senior Software Engineer
Greenhouse
ON
Greenhouse is searching for a Senior Full Stack Engineer to join our Employer Experience & Talent Discovery team. This team builds the experiences and signals that help employers find the…
Added 15 hours ago
Senior Software Engineer
Greenhouse
BC
Greenhouse is searching for a Senior Full Stack Engineer to join our Employer Experience & Talent Discovery team. This team builds the experiences and signals that help employers find the…
Added 15 hours ago
Principal Hardware Applications Engineer – PCIe Switches (Scorpio)
Astera Labs
Vancouver, BC
…accelerators at rack scale. As a Principal Product Applications Engineer on the Scorpio team, you will be the technical face of our switching portfolio to the world's leading hyperscalers,…
Added 15 hours ago
Principal FW/SW Engineer
Astera Labs
Toronto, ON
Principal Engineer – Embedded Firmware & Software
Added 15 hours ago
Sales Operations Engineer
Archera
Québec, QC
As a Sales Operations Engineer, you own the systems and automations behind Archera's Channel Partner and AWS Alliances teams. You will build and maintain the workflows in n8n and Salesforce…
Added 15 hours ago
Forward Deployed Engineer
Archera
Québec, QC
As a Forward Deployed Engineer, you sit where Archera's platform meets the field. This is an engineering role: you will write code, build integrations against partner and hyperscaler APIs,…
Added 15 hours ago
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Machine Learning Engineer
Bree
Toronto, ON
- $180,000 to $250,000 CAD / year
- Full-time
- Hybrid
We’re looking for a Machine Learning Engineer to build and scale high-impact, world-class ML systems. You’re passionate about deploying AI solutions, optimizing performance, and driving…
Added 15 hours ago
Staff Quality Engineer
StackAdapt
Canada
StackAdapt is seeking a talented Staff Quality Engineer to join the Automation and Intelligence Pillar pod, the group building StackAdapt's AI and agentic products. As the most senior…
Added 15 hours ago
Senior Quality Engineer
StackAdapt
Canada
StackAdapt is seeking a talented Senior Quality Engineer who is passionate about software quality and test automation to be part of a highly impactful team that will directly affect the…
Added 15 hours ago
Quality Engineer
StackAdapt
ON
StackAdapt is seeking a talented Quality Engineer who is passionate about software quality and test automation to be part of a highly impactful team that will directly affect the success of…
Added 15 hours ago
Automation Engineer, Agentic Orchestration
StackAdapt
Canada
An Automation Engineer with a focus on Agentic Orchestration focuses on seamlessly connecting AI capabilities, including orchestrated agent systems, with existing business processes and…
Added 15 hours ago
Data Developer
TextNow, Inc.
Waterloo, ON
…data warehouses (e.g., Snowflake), and hands-on experience in Python and SQL - preferably in companies with fast-growing and evolving data…
Added 15 hours ago
Tech Lead - Python
Nearform
Canada
Whether you are a Senior Engineer, Tech Lead, or DevOps Engineer, you will collaborate with distributed teams, leveraging cutting-edge technologies to build secure, high-performance…
Added 15 hours ago
Senior Software Engineer - Python & AI
Nearform
Canada
As a Senior Engineer at Nearform your main task will be designing & building applications using Python. However as you’ll likely work on a variety of projects your responsibilities may also…
Added 15 hours ago
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AI Fleet Platform Software Engineer
Cerebras Systems
Toronto, ON
- Full-time
- Hybrid
…manage it must scale with it. We are seeking a senior software engineer to build the platforms and tools that help our teams understand fleet health, respond to issues, and keep compute…
Added 15 hours ago
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ML Runtime and Kernel Engineer - Core ML
Cerebras Systems
Toronto, ON
- Full-time
- Hybrid
We are looking for an engineer to bridge the gap between promising research ideas and efficient execution on Cerebras systems. You will work across ML frameworks, compilers, runtimes, and…
Added 15 hours ago
CS
Staff GPU Inference SDET
Cerebras Systems
Toronto, ON
- Full-time
- Hybrid
Engineer chaos engineering and fault-injection suites to simulate node failures, inter-node network degradation, GPU memory leaks, driver/firmware mismatches, and automated recovery paths…

Cerebras Systems

ML Runtime and Kernel Engineer - Core ML

Toronto, ON, Canada

Hybrid

Full-time

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Job details

Job type: Full-time
Workplace: Hybrid
Posting language: English
Posted: Sep 28, 2026

Original job description

Cerebras Systems builds the world's largest AI chip, 56 times larger than GPUs. This architecture allows Cerebras to deliver industry-leading training and inference speeds; over 10 times faster than GPU-based hyperscale cloud inference services.

This order of magnitude increase in speed is transforming the user experience of AI applications, unlocking real-time iteration and increasing intelligence via additional agentic computation.

Cerebras works with the leading model labs, global enterprises, and cutting-edge AI-native startups. OpenAI recently announced a multi-year partnership with Cerebras, to deploy 750 megawatts of scale, transforming key workloads with ultra high-speed inference.

About The Role

The Core ML team develops novel machine learning algorithms that take advantage of the unique capabilities of the Cerebras Wafer-Scale Engine. Our work spans efficient LLM training and inference, parallel and diffusion-based generation, sparsity, scaling laws, and training dynamics.

We are looking for an engineer to bridge the gap between promising research ideas and efficient execution on Cerebras systems. You will work across ML frameworks, compilers, runtimes, and low-level kernels to implement new algorithmic capabilities, diagnose performance bottlenecks, and turn research prototypes into robust, high-performance demonstrations.

Depending on your background, your work may emphasize runtime capabilities such as token orchestration, scheduling, communication, and distributed execution; low-level kernel development for novel ML operations; or a combination of both.

Responsibilities

Design and implement runtime components and high-performance kernels required by novel Core ML algorithms.

Translate research prototypes into efficient implementations for the Cerebras platform, including reference implementations and comparisons on GPUs where useful.

Profile and debug performance across the ML framework, compiler, runtime, communication, and kernel layers.

Optimize computation, memory movement, communication, and concurrency for large-scale training and low-latency inference.

Develop benchmarks, instrumentation, and automated tests that validate functionality, performance, and numerical correctness.

Collaborate closely with Core ML researchers and compiler, runtime, kernel, and inference engineers to evaluate design alternatives and deliver end-to-end capabilities.

Contribute to software architecture and roadmap decisions by identifying recurring limitations and high-leverage platform improvements.

Skills & Qualifications

Bachelor’s, Master’s, PhD, or equivalent practical experience in Computer Science, Computer Engineering, Electrical Engineering, or a related field.

Experience developing high-performance systems software, ML systems, runtimes, compilers, or computational kernels.

Strong programming skills in C++ and Python.

Solid understanding of parallel programming, memory management, concurrency, data structures, and performance optimization.

Proven ability to debug and profile complex software across multiple layers of a system.

Familiarity with modern machine learning architectures and frameworks such as PyTorch or JAX.

Ability to work effectively with researchers and translate evolving algorithmic requirements into reliable software.

Preferred Skills & Qualifications

Experience with CUDA, Triton, low-level assembly, accelerator programming, or a C-like domain-specific language.

Experience with compiler internals, distributed runtimes, custom hardware interfaces, or HPC systems.

Understanding of machine learning fundamentals and ML systems, with the ability to reason about how algorithmic choices affect accuracy, systems implementation and performance.

Familiarity with LLM training or inference, including attention, KV-cache management, parallel generation, or distributed execution.

Experience developing software in an industrial or academic research environment where requirements evolve through experimentation.

Contributions to significant open-source systems, ML frameworks, compilers, or kernel libraries.

Why Join Cerebras

People who are serious about software make their own hardware. At Cerebras, we have built a breakthrough architecture that is unlocking new opportunities for the AI industry. With dozens of model releases and rapid growth, we’ve reached an inflection point in our business. Members of our team tell us there are five main reasons they joined Cerebras:

Build a breakthrough AI platform beyond the constraints of the GPU.
Publish and open source their cutting-edge AI research.
Work on one of the fastest AI supercomputers in the world.
Enjoy job stability with startup vitality.
Our simple, non-corporate work culture that respects individual beliefs.

Find out more about what it's like to work at Cerebras here!

Apply today and become part of the forefront of groundbreaking advancements in AI!

Cerebras Systems is committed to creating an equal and diverse environment and is proud to be an equal opportunity employer. We celebrate different backgrounds, perspectives, and skills. We believe inclusive teams build better products and companies. We try every day to build a work environment that empowers people to do their best work through continuous learning, growth and support of those around them.

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More about this job

Responsibilities

The ML Runtime and Kernel Engineer at Cerebras Systems will build runtime pieces and fast low-level code for new machine learning methods. They will also find and fix slow spots across the software, and work closely with researchers and other engineers.

Requirements

Cerebras Systems needs candidates with a background in computer science, computer engineering or electrical engineering, plus experience building high-performance systems, ML systems, compilers or kernels. Strong C++ and Python skills, and familiarity with PyTorch or JAX, are required.

Skills

C++
Python
PyTorch
JAX
CUDA
Triton
Low-level assembly
Accelerator programming
Domain-specific language
Compiler internals
Distributed runtimes
Parallel programming
Memory management
Concurrency
Performance optimization
Profiling and debugging
Benchmarking
Numerical correctness testing
LLM inference
LLM training
Attention mechanisms
KV-cache management
Distributed execution
Open-source contribution
Machine learning fundamentals

Keywords

C++
Python
PyTorch
JAX
CUDA
Triton
ML runtime
kernel engineering
compilers
parallel programming
LLM inference
LLM training
KV-cache
distributed training
high-performance computing
performance profiling
benchmarking
machine learning systems
wafer-scale engine
AI accelerator

Tools

C++
Python
PyTorch
JAX
CUDA
Triton

Languages

English

Fields of study

Computer Science
Computer Engineering
Electrical Engineering

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