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Added 1 min ago
SL
Engineering Manager
Strescon Limited
Saint John, NB
- Full-time
We are seeking an Engineering Manager (P.Eng.) to join our Engineering team. This role is ideal for an experienced engineering leader who is passionate about developing high-performing…
Added 1 min ago
OT Systems/Applications Design
Celestica International LP
Newmarket, ON
Celestica, Inc. (NYSE: CLS; TSX: CLS) is a technology leader dedicated to driving customer success and market advancements. With deep expertise in design, engineering, manufacturing, supply…
Added 1 min ago
U
Online Game Programmer (Rainbow Six)
Ubisoft
Saguenay, QC
- Full-time
Ubisoft is a global leader in gaming with teams across the world creating original and memorable gaming experiences, from Assassin’s Creed, Rainbow Six to Just Dance and more. We believe…
Added 1 min ago
U
User Interface Artist
Ubisoft
Saguenay, QC
- Full-time
Ubisoft is a global leader in gaming with teams across the world creating original and memorable gaming experiences, from Assassin’s Creed, Rainbow Six to Just Dance and more. We believe…
Added 1 min ago
T
Personal Banking Associate Trainee
TD
Toronto, ON
- Full-time
Help build a positive and equitable work environment by promoting team effectiveness, participating in personal performance development and sharing industry knowledge to achieve common…
Added 16 mins ago
CE
Business Development Manager – Industrial Welding & Wear Solutions
Castolin Eutectic
Remote, Canada
- $90,000 to $140,000 CAD / year
- Full-time
- Remote
For more than 120 years, Castolin Eutectic has been a global leader in welding consumables, wear protection, thermal spray technologies, and engineered maintenance solutions. We help…
Added 16 mins ago
H
Financial Analyst (3 Month Term)
Hexagon
Calgary, AB
- Temporary
The Company: Hexagon is a global leader in digital reality solutions, combining sensor, software and autonomous technologies. We are putting data to work to boost efficiency, productivity,…
Added 30 mins ago
XI
Director, Network Development & Operations
Xplore Inc.
Cornwall, ON
- Full-time
The Director, Network Development & Operations is the senior leader responsible for turning Xplore’s network architecture into an automated, scalable production network, delivering Core &…
Added 30 mins ago
I
Senior Consultant - Oracle Field Service Cloud
Infosys
Mississauga, ON
- $92,740 to $105,007 CAD / year
- Full-time
…production support and play an important role in the configuration, development, and deployment of the Oracle Field Service Cloud solution. The role will require to collaborate with…
Added 30 mins ago
XI
Director, Network Development & Operations
Xplore Inc.
Markham, ON
- Full-time
The Director, Network Development & Operations is the senior leader responsible for turning Xplore’s network architecture into an automated, scalable production network, delivering Core &…
Added 30 mins ago
XI
Director, Network Development & Operations
Xplore Inc.
Woodstock, NB
- Full-time
The Director, Network Development & Operations is the senior leader responsible for turning Xplore’s network architecture into an automated, scalable production network, delivering Core &…
Added 30 mins ago
PP
Principal Chemist
Piramal Pharma Solutions
Aurora, ON
- Full-time
Prepare draft project updates and reports for review by project team leader. May present project updates to internal staff and clients
Added 30 mins ago
I
Senior Consultant - IFS Cloud FSM Functional
Infosys
Mississauga, ON
- $92,740 to $105,007 CAD / year
- Full-time
Perform role of a Senior Consultant at onsite and work with offshore team on deliverables.
Added 30 mins ago
XI
Director, Network Development & Operations
Xplore Inc.
Calgary, AB
- Full-time
The Director, Network Development & Operations is the senior leader responsible for turning Xplore’s network architecture into an automated, scalable production network, delivering Core &…
Added 30 mins ago
BT
Human Resources Generalist
Breaker Technology, an ASTEC Brand
Thornbury, ON
- Full-time
…employees, customers and the communities we call home. With a team more than 4,000 strong, our employees are our #1 advantage. We invest in skills training and provide opportunities for…
Added 1 hour ago
N
Corporate Controller
Nanalysis
Calgary, AB · Greater Calgary Metropolitan Area
- Full-time
…New York. The company was formed in 2005 and specializes in software used to process and analyze NMR data in different materials, from proteins to nucleic acids. Today, their software,…
Added 1 hour ago
Director, Global Cash Management Platforms
Scotiabank
Toronto, ON
The Director leads the strategic direction, development, and delivery of technology solutions across Global Cash Management technology. This role ensures alignment with business goals,…
Added 1 hour ago
Clinical Service Leader - Clinical Nutrition - Infant Nutrition Preparation Room
Winnipeg Regional Health Authority
Winnipeg, MB
…food services practices and assisting in program planning and…
Added 1 hour ago
Staff AI Developer - Vancouver
Robots and Pencils
Vancouver, BC
In this role, you will work as a key technical leader on a cross-functional team, defining AI architecture, leading model development and optimization, and solving challenging integration…
Added 1 hour ago
AC
Development Lead (Back-end Systems)
Air Canada
Toronto, ON
- Full-time
The Development Lead is a senior, hands-on technical leader who drives technical direction, sprint execution, and delivery outcomes within an Agile delivery pod. This role owns technical…
Added 1 hour ago
A
Operations Manager, Mortgage & Lending
Aplin
Calgary, AB
- Full-time
…Operations Manager, Mortgage & Lending, to lead a knowledgeable…
Added 1 hour ago
PG
Commercial Marketing Manager
Purity Gas
Ancaster, ON
- $95,000 to $115,000 CAD / year
Manage individual and team performance through regular 1:1 coaching, goal setting, clear objective alignment, and structured professional development planning.
Added 2 hours ago
ME
Assistant General Manager
MBS Equipment Company Canada
Burnaby, BC
- Full-time
The MBS Group is one of the largest studio-based production service and studio development companies in the world. Our key capabilities include studio management, studio design and…
Added 2 hours ago
W
Mechanical Engineer-in-Training
Wood
Saskatoon, SK
- Full-time
Wood currently has an exciting opportunity for a Mechanical Engineer in Training to join our Minerals & Metals (M&M) team. Reporting to the Mechanical Department Manager, this position is…
Added 2 hours ago
FC
Manager, Group Administration
First Canadian Financial Group
Edmonton, AB
- Full-time
Provide regular performance feedback and development opportunities to ensure the team has the skills and confidence to grow.

Robots and Pencils

Staff Engineer / AI Builder - Toronto

Toronto, ON, Canada

The salary range for this role is $ $165,604 - $228,491 USD.

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Job details

Pay: The salary range for this role is $ $165,604 - $228,491 USD.
Experience: 6+ years of professional software engineering experience, including meaningful time shipping GenAI/LLM-powered systems in production - not just prototypes
Posting language: English
Posted: Nov 3, 2026

Original job description

We’re looking for a Staff AI Builder to lead the design and delivery of AI/ML systems. This role is ideal for an experienced engineer who thrives on architectural decisions, can confidently own systems end-to-end, and contributes to technical leadership across the team.

In this role, you will work as a key technical leader on a cross-functional team, defining AI architecture, leading model development and optimization, and solving challenging integration problems. You’ll be joining real, in-flight work where reliability, security, and scalability are critical. You’ll establish engineering standards, raise the bar on how we build AI systems, and contribute to the technical decisions that shape how our AI work scales over time.

Why This Role Matters

At Robots & Pencils, we design AI systems for a human world. Our name says it all. Robots and pencils means engineering paired with creativity, because every agent we ship has to work for real people in real workflows. That balance is baked into how we operate.

Every role here contributes directly to that mission. Here, you shape how AI systems integrate into enterprise operations, how teams move at real velocity, and how products create measurable impact for clients and the people they serve. We ship production-ready AI in 30 to 45 days. That pace demands people who take ownership, lead with craft, and care deeply about what they put their name on.

What You'll Do

Agentic & GenAI Engineering

Design and build agentic workflows - reasoning loops, tool/function calling, and orchestration across single- and multi-agent architectures - with clear judgment on which pattern fits the problem and which doesn't
Build and maintain RAG pipelines: chunking strategy, embeddings, vector search (OpenSearch), re-ranking, and staleness/refresh handling for dynamic knowledge sources
Integrate with AWS Bedrock and Agent Core, including MCP-based tool design - writing tool descriptions precise enough that an orchestrator routes correctly every time
Write and iterate on production system prompts - structured role framing, output constraints, and few-shot design - not just prompt tinkering
Build eval and observability into every agent you ship: golden datasets, RAGAS-style metrics, LLM-as-judge (as both a runtime guardrail and an offline eval), and tracing via LangFuse/LangSmith or equivalent
Design for LLM failure, not just LLM success: retries with backoff and jitter, circuit breakers, fallback models, and a clear user-facing story when something upstream degrades

Full-Stack & Platform Engineering

Build backend services in Python and Node.js, including serverless architectures (AWS Lambda, API Gateway) that support agentic workflows
Design DynamoDB single-table schemas - composite keys, transactional writes - for conversation state, agent memory, and session history
Support event-driven orchestration (Step Functions, SQS, EventBridge) for asynchronous agent operations, with an eye toward reliability and clean error handling
Contribute to frontend integration points so agentic features land cleanly for end users, and write clean, well-tested code across the stack
Support deployment, monitoring, and production troubleshooting in cloud-native environments (AWS, Docker), with guidance from senior engineers where needed

Collaboration & Technical Leadership

Bring informed technical judgment to architecture discussions - naming the real trade-offs of a pattern (e.g., gateway centralization vs. latency, single- vs multi-agent design) rather than defaulting to what's familiar
Partner with product, design, and delivery leads across global teams to scope and ship features end-to-end
Mentor other engineers on the pod and help raise the bar on agentic engineering practices, including AI-assisted development tools like Claude Code
Own assigned features and releases end-to-end - including the unglamorous parts: debugging, hardening, and keeping production systems trustworthy

What You'll Bring

6+ years of professional software engineering experience, including meaningful time shipping GenAI/LLM-powered systems in production - not just prototypes
Real, hands-on depth in agentic AI: reasoning loops, tool/function calling, multi-agent orchestration, and a considered point of view on when single-agent design beats multi-agent, and why
Practical RAG expertise: chunking strategies, embeddings, vector databases (OpenSearch or similar), cosine similarity search, and re-ranking - you can explain the mechanism, not just the terminology
Experience building evaluation and observability for LLM systems: golden datasets, LLM-as-judge, RAGAS or comparable metrics, and tracing tools like LangFuse/LangSmith
Strong prompt engineering skills - you can write a production system prompt with real structure and constraints on request, not just describe the concept
Hands-on experience with the AWS GenAI stack: Bedrock, Agent Core, Lambda, DynamoDB (single-table design), S3, SQS, EventBridge, Step Functions
Strong Python and Node.js skills, with experience building full-stack applications and RESTful APIs
Solid understanding of production reliability patterns for LLM-backed systems: retries/backoff, circuit breakers, fallback models - as a bundle, not a single tactic
Experience with containerization (Docker) and cloud-native deployment
Comfort owning ambiguous, integration-heavy problems, and the ability to go a level deeper when someone pushes on your answer instead of staying abstract
Legally authorized to work in Canada and eligible to secure immediate U.S. non-immigrant work authorization (e.g., TN status under USMCA) for mandatory weekly on-site client delivery (3 days/week) in the United States.

Helpful Extras and Unique Skills

Direct experience with Amazon Bedrock Agent Core - agent registration, MCP tool wiring, memory/session management, gateway provisioning
Experience in a regulated or high-stakes domain (education, healthcare, financial services) where evaluation rigor and reliability carry real consequences
Familiarity with workflow orchestration tools such as Step Functions, Sequencer, or similar state-machine-based systems
A point of view on LLM observability tooling, gained from actually running it in production rather than reading about it

The below range reflects the range of possible compensation for this role at the time of this posting. We may ultimately pay more or less than the posted range. This range may be modified in the future. An employee's position within the salary range will be based on several factors including, but not limited to, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, shift, travel requirements, sales or revenue-based metrics, any collective bargaining agreements, and business or organizational needs. The salary range for this role is $ $165,604 - $228,491 USD.  We offer a comprehensive package of benefits including paid time off, medical/dental/vision insurance and 401(k) to eligible employees.

An offer of employment may be conditional upon successful completion of a background check in accordance with local legislation and our candidate privacy notice. Your current employer will not be contacted without your permission.  We are committed to ensuring equal employment opportunities for all job applicants and employees. Employment decisions are based upon job-related reasons regardless of an applicant's race, color, religion, sex, sexual orientation, gender identity, age, national origin, disability, marital status, genetic information, protected veteran status, or any other status protected by law.

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More about this job

Responsibilities

Design and deliver production-grade agentic AI systems, including orchestration, RAG pipelines, prompts, evaluation, observability, and reliability safeguards. Build and support cloud-native services and integrations, make architecture decisions, mentor engineers, and own features and releases end-to-end.

Requirements

Requires 6+ years of software engineering experience, including production experience with GenAI/LLM systems, and hands-on expertise in agentic AI, RAG, evaluation, observability, and prompt engineering. Candidates should have strong Python and Node.js skills, experience with AWS services and production reliability patterns, and authorization to work in Canada plus eligibility for immediate U.S. non-immigrant work authorization.

Skills

Agentic AI
Generative AI
Large Language Models
RAG
Prompt Engineering
Python
Node.js
AWS Bedrock
Amazon Bedrock Agent Core
DynamoDB
OpenSearch
LLM Evaluation
LLM Observability
AWS Lambda
Docker
System Architecture

Benefits

Paid Time Off
Medical Insurance
Dental Insurance
Vision Insurance
401(k)

Visa sponsorship

Not detected in the job text

Keywords

Agentic AI
Generative AI
Large Language Models
Reasoning Loops
Tool Calling
Multi-Agent Orchestration
Retrieval-Augmented Generation
Embeddings
Vector Search
OpenSearch
Re-Ranking
AWS Bedrock
Amazon Bedrock Agent Core
Model Context Protocol
Prompt Engineering
RAGAS
LLM-as-Judge
LangFuse
LangSmith
Python
Node.js
AWS Lambda
DynamoDB
Step Functions
SQS
EventBridge
Docker
Serverless Architecture
Circuit Breakers
Retries and Backoff

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