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Added 2 months ago
Senior Software Developer, Manufacturing Data Solutions (Python/SQL)
Sonova AG
Kitchener, ON
As a Senior Software Developer, you will apply your expertise to deliver reliable and scalable data-oriented solutions in a collaborative global environment.
Added 2 months ago
Software Developer, Manufacturing Data Solutions (Python/SQL)
Sonova AG
Kitchener, ON
As a Software Developer, you will apply your expertise to deliver reliable and scalable data-oriented solutions in a collaborative global environment.
Added 2 months ago
TR
Senior Software Engineer I
Thomson Reuters
Toronto, ON
- Full-time
Backend & AI Skills: Experience building APIs and services with Python as a core language, and working familiarity with GenAI concepts including prompt engineering, agentic system design,…
Added 2 months ago
TR
Staff Software Engineer I
Thomson Reuters
Toronto, ON
- Full-time
Backend Skills & AI Skills: Hands-on experience building APIs and services with Python as a core language, working knowledge of Node.js, and working familiarity with GenAI concepts…
Added 2 months ago
Manager, AI & Data Consulting
Artefact North America
Montreal, QC
Working knowledge of at least one AI platform ecosystem - Google (Gemini), Anthropic (Claude), or OpenAI - and of core GenAI concepts (RAG, agents, context engineering).
Added 2 months ago
Director, AI & Data Science
Artefact North America
Montreal, QC
Contributing to AI Strategy: Partnering with senior leadership to shape GenAI architecture direction, tooling decisions, and platform roadmap within your area.
Added 2 months ago
Director, AI & Agentic Engineering
Artefact North America
Montreal, QC
Contributing to AI Strategy: Partnering with senior leadership to shape GenAI architecture direction, tooling decisions, and platform roadmap within your area.
Added 2 months ago
IF
AI Developer Senior
Intact FC
Toronto, ON · Montreal, QC
- Full-time
Flexible work arrangements and a hybrid work model
Added 2 months ago
W
Senior Software Developer, LLM Infrastructure
Wealthsimple
Canada
- Full-time
The Machine Learning Infrastructure team builds the core foundation powering AI and GenAI initiatives across Wealthsimple. As our AI footprint expands, our priority is building scalable,…
Added 2 months ago
WT
Senior Software Developer, LLM Infrastructure
Wealthsimple Technologies
Remote, Canada
- $152,900 to $189,000 CAD / year
- Full-time
- Remote
The Machine Learning Infrastructure team builds the core foundation powering AI and GenAI initiatives across Wealthsimple. As our AI footprint expands, our priority is building scalable,…
Added 2 months ago
Manager, AI & Data Consulting
Welcome to the Jungle
Montreal, QC
Working knowledge of at least one AI platform ecosystem - Google (Gemini), Anthropic (Claude), or OpenAI - and of core GenAI concepts (RAG, agents, context engineering).
Added 2 months ago
IS
Data Science ML/GenAI Engineer (FRE/ ENG)
Irth Solutions
Remote, Canada
- Full-time
- Remote
Data Science ML/GenAI Engineer (Intermédiaire)À propos d’Irth Solutions
Added 2 months ago
Director of Engineering, Operations Planning
HelloFresh
Toronto, ON
Own the GenAI transformation - define and drive a concrete roadmap for becoming a genuinely AI-native engineering organisation: from AI-assisted development and automated incident response,…
Added 2 months ago
CI
AI Enginering Technical Lead (Permanent)
CoreFactor Inc.
Toronto, ON
- Full-time
This position is hybrid and will require the successful incumbent to go into the Toronto office two (2) times per week.
Added 2 months ago
JG
Oracle AI Architect
J&M Group
Toronto, ON
- Full-time
Role Descriptions: Architecture Design: Lead the design and solutioning of enterprise-grade AI applications| focusing on Generative AI and Agentic AI frameworks.OCI Implementation:…
Added 2 months ago
MS
Data Scientist (NLP Specialist) – Legal and Compliance (Hybrid)
Morgan Stanley
Montreal, QC
- Full-time
Create GenAI-based solutions to automate manual tasks and drive cost efficiency.
Added 2 months ago
Senior Python Developer
Ampliwork
Montreal, QC
We are looking for a Senior Python Developer with strong core software engineering fundamentals and hands-on experience building production-grade, cloud-native systems.
Added 3 months ago
TH
Manager, Data Science (Askuity division)
The Home Depot Canada
Toronto, ON
- Full-time
Lead and mentor a team of data scientists in developing AI-powered solutions, including Generative AI (GenAI), for Fusion.
Added 1 month ago
GS
Senior Software Engineer
Guidewire Software
Mississauga, ON · Toronto, ON
- Full-time
Your work will directly support PDO’s mission to embed GenAI across our products and improve operational excellence, contributing to Guidewire’s broader goal of transforming how the world’s…
Added 2 months ago
TT
AI/ML Engineer
TC Transcontinental
Mississauga, ON
- Full-time
At TC Transcontinental, we've got it made, and that's because of the expertise of our team.
Added 2 months ago
B
Senior Manager Data Engineering
BMO
Toronto, ON · SCC
- Full-time
Please note this role is subject to Hybrid Work model, working 2 days per week in the office at 4100 Gordon Baker Road, Toronto or 250 Yonge Street, Toronto
Added 2 months ago
MC
Data Scientist
Meridian Credit Union
Toronto, ON
- Full-time
Develop GenAI and LLM models. Get direction from and technical guidance from more senior members of the team
Added 2 months ago
Senior Software Developer, Manufacturing Data Solutions (Python/SQL)
Sonova AG
Kitchener, ON
As a Senior Software Developer, you will apply your expertise to deliver reliable and scalable data-oriented solutions in a collaborative global environment.
Added 4 months ago
S
Architecte en IA agentique - Intelligence Engineering / Agentic AI - Sr. Architect - Intelligence Engineering
Slalom
Montreal, Quebec
- Full-time
Développer en Python et, lorsque pertinent, dans d’autres langages afin de livrer des systèmes d’apprentissage automatique, des API, des harnais d’évaluation, des pipelines de récupération,…
Added 4 months ago
S
Agentic AI Architect - Intelligence Engineering (Toronto)
Slalom
Toronto, Ontario · Greater Toronto Area, Canada
- Full-time
…vector databases, embedding strategies, chunking optimization, hybrid search, re-ranking, and multi-source data…

Wealthsimple Technologies

Senior Software Developer, LLM Infrastructure

Remote, Canada

Remote

$152,900 to $189,000 CAD / year · Full-time

Apply About employer

Applications open in a new tab.

Job details

Pay: $152,900 to $189,000 CAD / year
Job type: Full-time
Workplace: Remote
Experience: 6+ years of software engineering experience building production-ready distributed systems or data platform infrastructure.
Posting language: English
Posted: Aug 12, 2026

Original job description

Build something people love

Wealthsimple is Canada’s leading financial innovator. The company offers a full suite of simple, sophisticated financial products across managed investing, do-it-yourself trading, cryptocurrency, tax filing, spending and saving. Wealthsimple currently serves more than 4 million Canadians and holds over $155 billion in assets under administration. The company was founded in 2014 by a team of financial experts and technology entrepreneurs, and is headquartered in Toronto, Canada.

We're proud of what we've built - and we're just getting started. Read our Culture Manual and learn more about how we work.

Machine Learning Infrastructure Team

The Machine Learning Infrastructure team builds the core foundation powering AI and GenAI initiatives across Wealthsimple. As our AI footprint expands, our priority is building scalable, cost-effective infrastructure that enables high-performance inference using open-source models alongside vendor solutions. Our responsibilities are to:

Build and maintain infrastructure to host and serve open-source LLMs reliably on cloud/GPU systems.
Implement intelligent model-routing frameworks to optimize performance, cost, and latency.
Develop evaluation and benchmarking tooling (Evals) to test, validate, and compare model performance across use cases.
Set the technical direction for operating scalable LLM infrastructure company-wide.

The Role

As a Senior Software Engineer on the ML Infrastructure team, you will design and implement the core backend and infrastructure powering our AI systems. You will work closely with data scientists, platform engineers, and engineering leaders to scale our GenAI footprint efficiently and securely.

In this role, you will have the opportunity to:

Build model-routing architecture (e.g., LiteLLM integration) to dynamically direct requests across internal and external models.
Provision and manage high-performance GPU infrastructure for serving open-source LLMs.
Build evaluation frameworks (Evals) that enable engineers and data scientists to benchmark model quality against production requirements.
Drive key cost-optimization and infrastructure efficiency initiatives without sacrificing system accuracy or reliability.

We are looking for people who have:

6+ years of software engineering experience building production-ready distributed systems or data platform infrastructure.
Strong proficiency in Python and infrastructure tooling like Kubernetes and Terraform.
Proven experience designing and operating highly performant, observable backend systems.
Practical experience or deep familiarity with the modern AI ecosystem (e.g., serving open-source models, vLLM, Ray, model routing, or evaluation frameworks).
Track record of owning technical projects end-to-end with high autonomy.

Our stack includes:

Container & Infra: Kubernetes, Terraform, AWS GPU infrastructure
Languages & APIs: Python, FastAPI
LLM Tooling & Serving: LiteLLM, vLLM, Ray, Bedrock
Data & Streaming: Kafka, Postgres, Redshift, Snowflake

Why Wealthsimple?

🌸 Top-tier health benefits and life insurance

📈 Long-term group savings with employer match, through Wealthsimple for Business

🌴 20 vacation days, 4 wellness days, and unlimited sick and mental health days per year

✈️ 90 days away: work outside Canada for up to 90 days per year

👥 Employee resource groups, including Rainbow (2SLGBTQ), Women of WS, and Black at WS

🌎 We are a hybrid team with over 1,500 employees across North America. The people are one of the best parts of working here: you'll collaborate with incredibly talented, curious, and driven teammates who are deeply committed to doing great work.

ICYMI

Technology & Innovation at Wealthsimple: We move quickly and build thoughtfully. That means we're always looking for better ways to work - whether that's new tools, AI, or rethinking how we approach a problem. We don't expect you to have all the answers, but we do expect curiosity and a willingness to evolve alongside the products we're building.

Inclusion Statement: We're building products for a diverse world, and we need a diverse team to do it well. We strongly encourage applications from everyone, regardless of race, religion, colour, national origin, gender, sexual orientation, age, marital status, or disability status.

Accessibility Statement: We're committed to an accessible hiring experience. If you need any accommodations throughout the interview process, please let us know - we'll work with you to make sure you have what you need. We also welcome any feedback on how we can better accommodate candidates with accessibility needs.

AI in Hiring: We may use artificial intelligence (AI) tools to support parts of our hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our team but don't replace human judgment – all final hiring decisions are made by people. If you have questions about how your data is used, reach out to us.

Apply About employer

More about this job

Responsibilities

Build and maintain scalable infrastructure to host and serve open-source LLMs while implementing intelligent model-routing frameworks. Develop evaluation and benchmarking tooling to validate model performance and drive cost-optimization initiatives.

Requirements

Requires 6+ years of software engineering experience in building production-ready distributed systems or data platform infrastructure. Strong proficiency in Python, Kubernetes, and Terraform is essential, along with practical experience in the modern AI ecosystem.

Skills

Python
Kubernetes
Terraform
Distributed systems
Data platform infrastructure
LLM infrastructure
Model routing
Evaluation frameworks
GPU infrastructure
vLLM
Ray
FastAPI
AWS
Kafka
Postgres
Snowflake

Benefits

Health benefits
Life insurance
Long-term group savings with employer match
20 vacation days
4 wellness days
Unlimited sick and mental health days
90 days away work program
Equity compensation

Visa sponsorship

Not detected in the job text

Keywords

Software Engineering
LLM
Infrastructure
Machine Learning
GenAI
Distributed Systems
Python
Kubernetes
Terraform
AWS
GPU
LiteLLM
vLLM
Ray
FastAPI
Kafka
Postgres
Redshift
Snowflake
Model Routing
Benchmarking
Evals
Backend
Cloud
Data Platform
Cost Optimization
Scalability
Reliability
Inference
Financial Technology

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