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Added 2 hours ago
Lead React Native Engineer
AI Interviews
Toronto, ON · Greater Toronto and Hamilton Area, ON
Full-time
Role summary.We are seeking a Senior/Lead React Native Engineer with 8+ years of mobile engineering and 5+ years of production React Native experience.Strong expertise in React Native…
Added 4 hours ago
Senior AI Engineer (Permanent)
CoreFactor Inc.
ON · Downtown Toronto (Underground city), Ontario
Full-time
We are seeking an experienced and technically strong Senior AI Engineer to join our clients Data, AI & Analytics team. This role focuses on the applied use of Generative AI and Agentic AI,…
Added 5 hours ago
Senior AI Engineer (Permanent)
CoreFactor
Toronto, ON · Greater Toronto Area, Canada
Full-time
We are seeking an experienced and technically strong Senior AI Engineer to join our clients Data, AI & Analytics team. This role focuses on the applied use of Generative AI and Agentic AI,…
Added 1 day ago
Lead IAM Engineer
Thomson Reuters
Toronto, ON · Canada, Toronto, Ontario
Full-time
…multi-factor authentication (MFA). This individual will serve as a senior technical resource for identity architecture, security hardening, operational excellence, modernization…
Added 1 day ago
Senior Frontend (FE) Engineer
Class8
Remote, Canada
$80,000 to $150,000 CAD / year
Full-time · Remote
Collaborate closely with Product, Design, Engineering Leads, and other stakeholders to translate requirements and designs into high-quality experiences.
Added 1 day ago
Senior Native Engineer, Partnerships
Javelin Venture Partners
ON · Ontario, Canada
Full-time
As a Native Engineer on the Partnerships team, you'll bring our partnership vision to life by enhancing the native applications our customers and pros use every day. You'll work closely…
Added 1 day ago
Senior Software Engineer, Design Systems
Javelin Venture Partners
ON · Ontario, Canada
Full-time
The Design Systems team owns Thumbprint, Thumbtack's design system used across web, iOS, and Android, plus the engineering tooling that connects design intent to shipped product code. We're…
Added 2 days ago
Senior Azure engineer
Manx Telecom Enterprise
Permanent North American Gaeltacht, ON
Full-time
A strong focus on collaboration and continuous improvement is key. The Senior Azure Engineer will work with colleagues across engineering, security, and service teams to implement best…
Added 2 days ago
Lead Engineer - Systems Dynamics
Beacon Holdings
Canada
Full-time
Beacon buys established vertical software companies and puts real engineering leadership into them. Our engineers embed in one business and own its technology.
Added 2 days ago
Senior Software Engineer, Design Systems
Thumbtack
Remote, Canada
Full-time · Remote
The Design Systems team owns Thumbprint, Thumbtack's design system used across web, iOS, and Android, plus the engineering tooling that connects design intent to shipped product code. We're…
Added 2 days ago
Senior Native Engineer, Partnerships
Thumbtack
Remote, Canada
Full-time · Remote
As a Native Engineer on the Partnerships team, you'll bring our partnership vision to life by enhancing the native applications our customers and pros use every day. You'll work closely…
Added 2 days ago
Lead Engineer - Systems Dynamics
Beacon Software
Remote, Canada
Full-time · Remote
Beacon buys established vertical software companies and puts real engineering leadership into them. Our engineers embed in one business and own its technology.
Added 2 days ago
Cloud Engineer
Morson Edge (Canada)
Oakville, ON
$95,000 to $135,000 CAD / year
Full-time
Morson Edge is seeking an experienced Cloud Engineer to join a growing infrastructure team. This role is ideal for a cloud professional with strong Microsoft Azure expertise who is…
Added 3 days ago
Senior React Native Engineer-Canada
Zazz
Toronto, ON · Greater Toronto Area, Canada
Full-time
Role summary. Lead engineer on the delivery team. Owns the highest-complexity screens and integrations.
Added 3 days ago
Senior Associate -Cyber Security Forward Deployed(Bilingual FR/EN)
PwC
Toronto, ON · Ottawa, ON · Vancouver, BC · Calgary, AB
Full-time
…members to design and implement security solutions (e.g. Cloud/App Security, AI to Defend) for our clients, helping secure their cloud environments and software development processes. In…
Added 3 days ago
Senior Software Engineer: Mobile & Full Stack
Ethereal Music Group
Vancouver, BC · Greater Vancouver Metropolitan Area
$125,000 to $160,000 CAD / year
Full-time
We’re looking for a Senior Software Engineer - Mobile & Full Stack who can take a problem from an initial requirement through technical design, implementation, release, and production…
Added 3 days ago
Data Science Developer
Transit
Montreal, QC
$90,000 to $125,000 CAD / year
Full-time
Regardless of whether you’re a hybrid data engineer-slash-scientist or a senior data engineer eager to cannonball into the data science side of things, to succeed in this role you’ll need…
Added 3 days ago
Guidewire Consultant
Envision Technology Solutions
Markham, ON
Contract
The role involves working with the Senior Manager - Software Engineering.
Added 3 days ago
Software Engineer - Mobile App (Expo/React Native)
TopHat HR
Markham, ON
$95,000 to $105,000 CAD / year
Full-time
Our client is a Startup Company with a clear product vision and a growing need for engineering talent. They are looking for a motivated and capable Software Engineer to help build and ship…
Added 3 days ago
Agent Deployment Engineer
Urban Ridge Supplies
Toronto, ON
Full-time
We’re creating an Agent Deployment Engineering Org: a specialized technical delivery team responsible for end-to-end execution of AI agent builds. Agent Deployment Engineers own the…
Added 3 days ago
Agent Deployment Engineer - Spanish Speaking
Urban Ridge Supplies
Toronto, ON
Full-time
We’re creating an Agent Deployment Engineering Org: a specialized technical delivery team responsible for end-to-end execution of AI agent builds. Agent Deployment Engineers own the…
Added 3 days ago
Agent Deployment Engineer
Urban Ridge Supplies
Toronto, ON
Full-time
We’re creating an Agent Deployment Engineering Org : a specialized technical delivery team responsible for end-to-end execution of AI agent builds. Agent Deployment Engineers own the…
Added 3 days ago
Staff Software Engineer / Architect - AI, CoCounsel FDE
Urban Ridge Supplies
Toronto, ON
Full-time
Thomson Reuters is looking for a Staff Software Engineer / Architect – AI to join our CoCounsel Forward Deployed Engineering team.
Added 3 days ago
Senior AI Engineer
Urban Ridge Supplies
Toronto, ON
Full-time
CI Financial is seeking an experienced and technically strong Senior AI Engineer to join our Data, AI & Analytics (DNA) team. This role focuses on the applied use of Generative AI and…
Added 3 days ago
Principal Software Engineer / Architect – AI, CoCounsel FDE
Urban Ridge Supplies
Toronto, ON
Full-time
Thomson Reuters is looking for a Principal Software Engineer / Architect – AI, CoCounsel Forward Deployed Engineering (FDE) to help design, build, and deliver production AI solutions for…

CoreFactor

Senior AI Engineer (Permanent)

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

Job type: Full-time
Apply by: Oct 27, 2026
Experience: 4–8+ years of experience in a data science, machine learning, or AI engineering role, including hands-on experience delivering production systems.
Posting language: English
Posted: Sep 27, 2026

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Original job description

CoreFactor is searching for a Senior AI Engineer on a permanent/full-time basis.

This position is hybrid and will require the successful incumbent to go into the office four (4) times per week.

We are seeking an experienced and technically strong Senior AI Engineer to join our clients Data, AI & Analytics team. This role focuses on the applied use of Generative AI and Agentic AI, leveraging existing large language models (LLMs) and platforms - not building models from scratch. As a senior member of the team, you'll take technical ownership of intelligent applications and automation tools that use LLMs to solve business problems, set best practices for the team, and mentor junior engineers, while partnering closely with business, engineering, and governance stakeholders to bring production-grade AI solutions to life.

KEY RESPONSIBILITIES:

Applied Generative & Agentic AI:

You'll be building the agents and GenAI systems that CI's advisors, analysts, and operations teams actually rely on day to day - not prototypes that stall out after the demo.

Architect and build production-grade intelligent systems and applications using existing LLMs (e.g., OpenAI, Claude, Gemini, etc.) through API integration, prompt engineering, fine-tuning, or Retrieval-Augmented Generation (RAG).
Design, prototype, and lead development of agentic AI systems capable of multi-step reasoning, task decomposition, and tool use to automate and support complex business workflows.
Contribute to the design of a reusable, scalable AI platform (shared tooling, agent frameworks, and infrastructure) rather than one-off point solutions, so capabilities can be reused across use cases.
Building web app AI solutions using frameworks such as React or Streamlit.

Monitoring & Improvement:

Set technical direction and best practices for GenAI and agentic solution design, including evaluation methodology, guardrails, and reliability of LLM-powered systems.
Drive continuous iteration and improvement of models and LLM-powered tools based on performance metrics, cost, and user feedback.

Technical Leadership & Best Practices:

Lead design and code reviews, championing best practices around experimentation, reproducibility, and responsible AI.

Requirements

Education:

Bachelor's or Master's degree in Computer Science, Data Science, AI, Machine Learning, Statistics, or a related field.

Experience:

4–8+ years of experience in a data science, machine learning, or AI engineering role, including hands-on experience delivering production systems.
Demonstrated experience designing, building, and shipping agentic AI systems involving multi-step reasoning, task decomposition, and tool use.
Experience designing around real-world infrastructure limitations - such as rate limits, quota management, retries/backoff, and cost-per-call - when architecting LLM-powered systems at scale.

Skills:

Deep understanding of prompt engineering, RAG, fine-tuning, and evaluation of generative output, including tradeoffs across approaches.
Proficiency in Python and ML/AI libraries (e.g., Scikit-learn, PyTorch, TensorFlow).
Hands-on skills in designing and orchestrating agentic workflows (multi-step reasoning, task decomposition, tool/function calling).
Excellent communication skills; able to present complex technical concepts clearly to both technical and non-technical stakeholders, including senior leadership.
Experience with cloud-based environments (AWS, Azure, or GCP).

Apply About employer

More about this job

Responsibilities

Design, build, and maintain production-grade generative and agentic AI applications using existing LLMs, including reusable platforms and tools that automate business workflows. Set technical best practices, evaluate and improve system performance and reliability, and lead design and code reviews while mentoring junior engineers and collaborating with stakeholders.

Requirements

Requires a bachelor's or master's degree in a relevant field and 4–8+ years of experience delivering production data science, machine learning, or AI systems. Candidates should have hands-on experience building agentic workflows and LLM applications, strong Python and AI/ML skills, knowledge of infrastructure constraints and cloud environments, and the ability to communicate effectively with technical and non-technical stakeholders.

Skills

Generative AI
Agentic AI
Large Language Models
Prompt Engineering
Retrieval-Augmented Generation
Fine-Tuning
Python
Scikit-Learn
PyTorch
TensorFlow
Agent Orchestration
Tool and Function Calling
AI Evaluation
Cloud Computing
React
Streamlit

Visa sponsorship

Not detected in the job text

Keywords

Generative AI
Agentic AI
Large Language Models
OpenAI
Claude
Gemini
Prompt Engineering
Retrieval-Augmented Generation
Fine-Tuning
Multi-Step Reasoning
Task Decomposition
Tool Use
API Integration
AI Agents
AI Platform
Python
Scikit-Learn
PyTorch
TensorFlow
React
Streamlit
Evaluation Methodology
Responsible AI
Guardrails
Rate Limits
Quota Management
Retries and Backoff
Cost Management
AWS
Azure

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