Jobs in Canada

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Added 12 hours ago
M-
Développeur.euse principal.e, Développement d’applications IA
Mila - Institut québécois d'intelligence artificielle
Montréal, QC
- Full-time
…collaboration between Université de Montréal and McGill University, with close links to Polytechnique Montréal and HEC…
Added 12 hours ago
ET
Braze Lead Developer
EXL Talent Acquisition Team
Canada
- Hybrid
We are seeking a hands-on Braze Lead Developer to build, integrate, and scale Braze solutions for enterprise clients. You will lead a team of developers while remaining deeply hands-on:…
Added 12 hours ago
CS
Senior Software Engineer, ML API – AI Inference
Cerebras Systems
Toronto, ON
- Full-time
- Hybrid
- Improve customer and developer experience. Partner with product, support, and solutions teams to understand user needs and make practical tradeoffs. Improve configuration, documentation,…
Added 12 hours ago
RP
GCP Cloud Architect/Engineer - BMO
Red Pico
Toronto, ON
- Contract
Experience building data processing pipelines using Dataflow with Python
Added 12 hours ago
Data Product Analyst (Data Science)
Adastra Corporation
Markham, ON
…combines strong data analysis and data science capabilities with core business analysis skills to ensure that data is effectively leveraged to inform strategic decision making, improve…
Added 12 hours ago
CC
Scientist, Data Research
Cameco Corporation-Saskatoon
Saskatoon, SK
- Full-time
-Collaborate with BTS, Operations, Engineering, and external research partners to translate business opportunities and technical challenges into practical, data-driven solutions.
Added 12 hours ago
EL
Principal Security Engineer, Security Platform
Equinix LLC
Toronto, ON
- Full-time
- Hybrid
Help us challenge assumptions, uncover bias, and remove barriers - because progress starts with fresh ideas. You’ll find belonging, purpose, and a team that welcomes you - because when you…
Added 12 hours ago
Scientist, Data Research
Cameco
Canada
…underrepresented groups (i.e., women, Indigenous peoples, persons with disabilities and members of racialized groups/visible minorities) to voluntarily disclose. Cameco welcomes applicants…
Added 12 hours ago
CI
AI Scientist Co-op
Canadian Imperial Bank of Commerce (Canada)
Toronto, ON
- Full-time
You need to be legally eligible to work at the location(s) specified above and, where applicable, must have a valid work or study permit
Added 12 hours ago
IG
Data Engineer
Insight Global
Burnaby, BC
- From $56 CAD / hour
- Contract
2+ years of hands-on experience with Snowflake, dbt, and Python, with this experience demonstrated within the most recent 4 years of professional work history.
Added 12 hours ago
SS
Senior ML Engineer
Solid State AI
Toronto, ON
- $120,000 to $160,000 CAD / year
- Full-time
- Hybrid
…classification and regression tasks. You should be well-versed with packages such as Scikit learn, PyTorch, Dask, Ray and Optuna. You will be involved in the entire model development…
Added 12 hours ago
M
AI Software Engineer
Mash
Toronto, ON
- Full-time
Application: Python (FastAPI, Pydantic, SQLAlchemy), TypeScript, React Native with Expo, Next.js.
Added 12 hours ago
S
Principal Engineer
Smartverify
Vancouver, BC
- $140,000 to $175,000 CAD / year
- Full-time
- Hybrid
Compensation : $140K-$175K CAD annual, plus equity, (commensurate with experience/profile)
Added 12 hours ago
Software Developer
Ericsson
ON
Experience with Linux and Python or Bash scripting.
Added 12 hours ago
GE
Senior Gen AI Applications Architect
GEPR Energy Canada Inc
Markham, ON
- $126,000 to $189,000 CAD / year
- Full-time
Proficiency in Python and at least one additional language such as C# or C++, along with experience in scientific programming or simulation tools such as MATLAB or R.
Added 12 hours ago
GV
Senior Gen AI Applications Architect
GE Vernova
Markham, ON
- $126,000 to $189,000 CAD / year
- Full-time
Proficiency in Python and at least one additional language such as C# or C++, along with experience in scientific programming or simulation tools such as MATLAB or R.
Added 12 hours ago
GE
Senior Gen AI Applications Architect
GEPR Energy Canada Inc
Markham, ON
- $126,000 to $189,000 CAD / year
- Full-time
Proficiency in Python and at least one additional language such as C# or C++, along with experience in scientific programming or simulation tools such as MATLAB or R.
Added 12 hours ago
SI
Senior Machine Learning Engineer, Premium Discovery
Scribd, Inc.
Toronto, ON · Vancouver, BC
- Full-time
- Hybrid
We believe the best work happens when individual flexibility is balanced with meaningful community connection. Scribd Flex empowers employees to choose the workstyle and location that…
Added 12 hours ago
AI
Lead AI Engineer
Axya Inc.
Montréal, QC
- Full-time
- On-site
…sources and procures parts. Our platform connects manufacturers with suppliers and automates the entire source-to-pay process - from sourcing and quoting to procurement - making it faster,…
Added 12 hours ago
Platform Engineer - AI/ML Infrastructure
Astra North Infoteck Inc.
Halifax, NS
Maintain CI/CD pipelines with GitHub Actions and Artifactory.
Added 12 hours ago
C1
Senior Data Scientist
Company 19 - John Hancock Life Insurance Company (U.S.A.)
Toronto, ON
- Full-time
Proficiency in programming languages such as Python and experience with machine learning libraries/frameworks, e.g., PyTorch, scikit-learn, Hugging Face, SQL, graph databases (Neo4j/Cypher,…
Added 12 hours ago
CI
Machine Learning Engineer Co-op
Canadian Imperial Bank of Commerce (Canada)
Toronto, ON
- Full-time
You need to be legally eligible to work at the location(s) specified above and, where applicable, must have a valid work or study permit
Added 12 hours ago
Ads Threat Intelligence
Google
Waterloo, ON
Experience with programming languages such as Python, Go, C++, or Java.
Added 12 hours ago
CI
AI and Quantum Scientist Co-op
Canadian Imperial Bank of Commerce (Canada)
Toronto, ON
- Full-time
You need to be legally eligible to work at the location(s) specified above and, where applicable, must have a valid work or study permit
Added 12 hours ago
S
Staff Applied Research Scientist
ServiceNow
Montréal, QC
- Full-time
- Hybrid
…quickly, stress-testing assumptions, and working side by side with the Forward Deployed Engineering team to validate ideas against real customer workflows. When a prototype fails in the…

Mash

AI Software Engineer

Toronto, ON, Canada

Full-time

Apply on mash.com About employer

Applications open in a new tab.

Job details

Job type: Full-time
Posting language: English
Posted: Aug 11, 2026

Original job description

Culture

We treat your time as the scarce asset that it is. We respect people being heads-down and having the time to get into a flow. Distractions and context switching are things we work to minimize. We have meetings for specific purposes, and leverage async channels when appropriate.

Mash has an open and direct culture. We believe that not making a decision is a decision - and a terrible one at that. We have strong conviction and a bias for action. We can agree to disagree, and move forward after reviewing the details. As we learn, we will reevaluate, iterate and push forward.

About Mash

We’re a dynamic team with experience at startups, and scaling products at big tech including Google, Amazon, Ada, D2L, CourseHero, Rakuten, Dayforce, PagerDuty, ROSS Intelligence & Lazer. We have top AI staff, including from programs such as MScAC, and advisors that have built startups and led some of the largest organizations in big-tech over the past 15 years.

We don’t use any seniority titles, and plan not to for as long as feasibly possible (learn more about why).

Mash investors include Whitecap Venture Partners, Castle Island Ventures, Maple VC, Strategic Cyber Ventures, Aquanow, Spacecadet, and angel investors including Sunny Madra (formerly Groq, now NVIDIA), Balaji Srinivasan (former CTO of Coinbase, author of The Network State), Austin Hill (co-founder of Zero-Knowledge Systems and Blockstream), Josh Troy (multi-startup CFO/co-founder, including Urbint) and John Pfeffer (former partner at KKR, co-founder of Pfeffer Capital).

Role & responsibilities

As an AI-focused software engineer on the Mash team, you will:

Ship core AI features within the Mash platform.
- Architect LLM-powered solutions and manage related infrastructure.
- Apply information retrieval techniques for search and retrieval-augmented generation (RAG), working with embedding models and vector databases.
- Develop processes and tooling for measuring and iterating on LLM output quality, leveraging eval frameworks and observability platforms.
- Create tooling to collect and leverage internal datasets for evaluation, few-shot prompting, fine-tuning and more.
- Develop bespoke ML/NLP models, when appropriate.
Build production data pipelines to ingest knowledge sources.
Stay up to date on cutting-edge research in the ML/NLP space and identify opportunities to apply new techniques within the Mash platform.
Work closely with a cross-functional team (product, design, engineering).
Discover and understand user needs.

Our stack

AI: We keep up with the state of the art and use whatever works best. Lately that means a bespoke agent harness, frontier and open-weight LLMs, decision models, speech-to-text and vision models, traditional NLP models, retrieval systems (graph, vector and keyword), and lots more.
Application: Python (FastAPI, Pydantic, SQLAlchemy), TypeScript, React Native with Expo, Next.js.
Data: Postgres, Cloud Storage, Prefect.
Infrastructure: GCP (Cloud Run, Cloud SQL, Pub/Sub, Eventarc), Terraform, Docker, Dagger, Kubernetes, Tilt, OpenTelemetry.

Skill set

4+ years of building production software at scale with a multi-year focus on AI.
Proficiency in 1+ programming languages, such as Python, Go, Rust, C++, or Java.
You’ve shipped LLM-powered features to real users: agents and tool calling, context design, retrieval and structured outputs.
You’ve built evals, datasets or regression checks that drive meaningful and provable improvement in a customer/user experience.
Experience with event-driven systems, building cloud-native software (with cloud providers such as Google Cloud Platform, Amazon Web Services, Microsoft Azure, etc.), working with data (both structured and unstructured) and developing data pipelines.
Strong understanding of backend system design and scalable architectures.
You use AI coding agents as a normal part of how you build.
Bonus: agent harnesses, structured interactions, speech or audio pipelines, entity resolution, sandboxing and isolation, privacy-preserving ML.

Cultural fit

We’re looking for an individual who:

Responds well to open-ended problems and thrives on autonomy - is a self-starter and problem solver.
Thrives in collaborative environments and is laser-focused on team goals.
Has great communication skills.
Has a passion for lifelong learning.
Has strong user empathy, and a user experience first mindset.

How to apply

Please reach out to us at careers@mash.com - and include a bit about yourself, your resume, and three bullet points about why you are specifically interested in the position.

Apply on mash.com About employer

More about this job

Responsibilities

The AI software engineer at Mash will build LLM-powered features, retrieval systems and evaluation tooling for the platform. They will also build data pipelines, work with product and design teams, and learn user needs.

Requirements

Candidates need 4+ years of production software experience with an AI focus, shipped LLM features to real users, and experience with cloud-native and event-driven systems. They should be proficient in at least one programming language and use AI coding agents in their daily work.

Skills

Python
FastAPI
Pydantic
SQLAlchemy
TypeScript
React Native
Expo
Next.js
Postgres
Prefect
Google Cloud Platform
Cloud Run
Cloud SQL
Pub/Sub
Eventarc
Terraform
Docker
Dagger
Kubernetes
Tilt
OpenTelemetry
LLM development
agent tool calling
retrieval-augmented generation
vector databases

Keywords

AI Software Engineer
LLM
RAG
retrieval-augmented generation
embedding models
vector databases
evals
observability
NLP
machine learning
Python
FastAPI
Pydantic
SQLAlchemy
TypeScript
React Native
Expo
Next.js
Postgres
Prefect

Tools

Python
FastAPI
TypeScript
React Native
Next.js
Postgres
Prefect
Google Cloud Platform
Terraform
Kubernetes

Languages

English

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Work requirements

Jobs in Canada