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Added 11 mins ago
T
Senior Python Test Automation Engineer
Telesat
Ottawa, ON
- Full-time
We are seeking a senior Python Automation Engineer to design, build, and maintain scalable test automation frameworks for distributed, event-driven applications. This is a hands-on…
Added 11 mins ago
A
Technology - Senior Architect/Architect, Cybersecurity
Aritzia
Vancouver, BC
- Full-time
…enable the business to operate and innovate securely. As the Senior Architect/Architect, Cybersecurity, you will define secure architectures, reusable security patterns, and reference…
Added 26 mins ago
MC
Senior Research Scientist
Medical Council of Canada
Ottawa, ON
- $130,000 to $156,000 CAD / year
- Full-time
As Senior Research Scientist at the Medical Council of Canada (MCC), you'll lead a research and scholarship program that directly shapes how physicians are assessed, trained, and supported…
Added 26 mins ago
G
Sales Director
Gordian
Canada
- Full-time
Drive enterprise-level sales pursuits, with a proven ability to sell at the senior executive level.
Added 26 mins ago
T&
Director, Capital Investment & Decision Support
Turner & Townsend
Vancouver, BC
- Full-time
The role will combine senior client advisory, technical leadership, business development and team leadership. It will support clients across Infrastructure and Energy & Natural Resources to…
Added 26 mins ago
A
Technology - Senior Architect/Architect, Cybersecurity
Aritzia
Vancouver, BC
- Full-time
…enable the business to operate and innovate securely. As the Senior Architect/Architect, Cybersecurity, you will define secure architectures, reusable security patterns, and reference…
Added 26 mins ago
EB
Product Manager, Digital Banking (18 Month Contract)
EQ Bank
Toronto, ON
- Contract
Reporting to the Director, Product and Channel Management, Digital Banking and working alongside senior management, the Product Manager is responsible for devising strategies and leading…
Added 26 mins ago
WO
Senior Accountant, Properties
WP Osborne Executive Search Inc.
Toronto, ON
- Full-time
Starlight Investments, in conjunction with WP Osborne Executive Search, is seeking a Senior Accountant, Properties to join its CORE Finance team.
Added 26 mins ago
TC
Agentic AI Engineer
Tata Consultancy Services
Mississauga, ON
- $100,000 to $130,000 CAD / year
- Full-time
Senior years of software engineering experience, including 5+ years designing and building enterprise AI/ML platforms.
Added 26 mins ago
CA
Director, Admissions & Referent Relations
Canadian Addiction Treatment Centres (CATC)
Markham, ON
- Full-time
Prepare regular reports and dashboards for senior leadership on key metrics, trends, and outcomes.
Added 26 mins ago
CR
VP Controller
Clarity Recruitment
Newmarket, ON
- $190,000 to $200,000 CAD / year
- Full-time
Our client is a privately held, owner-operated residential developer and builder. For more than a decade it has designed and built luxury custom homes and master-planned communities,…
Added 26 mins ago
NB
Senior Data Solutions Architect
National Bank of Canada
Montreal, QC
- Full-time
A career as a Senior Data Solutions Architect within the Wealth Management Solution and Data Architecture team at National Bank means leading the definition and implementation of innovative…
Added 26 mins ago
E
Registered Practical Nurse (RPN) - Casual - Extendicare London
Extendicare
London, ON · LTC - London (Waterloo St.)
- Part-time
…throughout Canada. Through our network of over 115 operated senior care and living centres, as well as our home health care operations, we are committed to delivering care throughout the…
Added 41 mins ago
S&
Lead Substation Engineer 2 - Grid
Sargent & Lundy
Calgary, AB
- Full-time
Guide junior and senior-level engineers and designers in protection and controls engineering design efforts, including providing guidance with the coordination of detailed design phases for…
Added 41 mins ago
T
Manager, Business Management & Strategic Initiatives
TD
Toronto, ON
- Full-time
Reporting to the Senior Manager, Business Integration, the Manager, Business Performance & Strategic Initiatives role requires a highly analytical and strategic problem solver with strong…
Added 41 mins ago
MC
Senior Software Developer
Meridian Credit Union
St. Catharines, ON · Toronto, ON · Etobicoke, ON
- Full-time
Added 41 mins ago
Senior Director, Product Management
Electronic Arts
Vancouver, BC
As a Senior Director of Product Management in the Game Developer Experiences (GDX) team, you will lead a team of product managers and partner with engineering leaders across a product…
Added 41 mins ago
SH
Senior Financial Analyst
Spectrum Health Care
Toronto, ON
- $85,000 to $100,000 CAD / year
- Full-time
Spectrum Health Care is looking for a CPA-designated Senior FP&A Analyst with strong analytical judgment, advanced Power Query and Power BI skills and a proactive approach to…
Added 41 mins ago
OT
Principal Product Manager
Open Text Corporation
Waterloo, ON
- Other
Serve as the senior escalation owner for complex issues and critical incidents, leading root-cause analysis, remediation efforts, stakeholder communications, and long-term reliability…
Added 41 mins ago
C
Senior Project Manager – Operational Systems & Digital Solutions
CIMA+
Mississauga, ON · Toronto, Ontario
- $125,440 to $172,440 CAD / year
- Full-time
CIMA+ is looking for a Senior Consultant – Operational Systems & Digital Solutions to join and help grow our Operational and Digital Technologies practice in the Greater Toronto Area and…
Added 41 mins ago
C
Applications Engineering Lead - Senior Vice President
Citi
Mississauga, ON
- Full-time
The Applications Development Engineering Lead is a senior level position responsible for establishing and implementing new or revised application systems and programs while driving…
Added 41 mins ago
C
VP Senior Core Java Lead
Citi
Mississauga, ON
- Full-time
The Senior Core Java Lead is responsible for accomplishing results through the management of a team or department in an effort to establish and implement new or revised application systems…
Added 56 mins ago
TI
Senior Product Designer (UX/UI)
TekStaff IT Solutions
Toronto, ON
- Contract
TekStaff's Client has a current vacancy for Senior Product Designer (UX/UI)
Added 56 mins ago
PC
Transaction Services Manager - Financial Services (Bilingual FR/EN)
PwC Canada
Montreal, QC
- Full-time
Responsible for delivering client-facing projects, being the main daily point of contact for senior client contacts, managing your own time, planning and organizing work tasks, monitoring…
Added 56 mins ago
J
Manager of Learning & Development
JLR
Ottawa, ON
- Full-time
…technology, and the confidence to engage any room, from new hires to senior…

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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