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Added 1 min ago
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AI Systems Engineer
Altis
Peterborough, ON
- $40 to $50 CAD / hour
- Contract
…contract with potential to convert to permanent as a Systems Engineer role combines systems engineering discipline with hands-on software development, digitalization, automation, and…
Added 1 min ago
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Fullstack .NET Engineer | igaming | Base + Benefits
Pentasia
Toronto, ON
- Full-time
Participate in all stages of the software development lifecycle, from design through deployment and support.
Added 1 min ago
SL
Engineering Manager
Strescon Limited
Saint John, NB
- Full-time
Working closely with operations, project management, sales, and production teams, you will champion engineering excellence, support business objectives, and ensure the successful execution…
Added 1 min ago
OT Systems/Applications Design
Celestica International LP
Newmarket, ON
The Lead Engineer, Systems/Applications is the Site Operational Technology (OT) lead that designs, integrates, and manages complex systems over their life cycles. They are engineering leads…
Added 1 min ago
S
Welding Engineer / EIT / Technologist
SGS
Nisku, AB
- Full-time
The Welding Engineer / EIT / Technologist provides technical support in welding engineering, welder testing, welding procedure qualification, and parameter monitoring. This role supports…
Added 16 mins ago
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Software Engineer, Frontend and Mobile
Bree
Toronto, ON
- Full-time
We are looking for a Software Engineer with a strong mobile and frontend focus to help shape the primary way customers experience Bree.
Added 31 mins ago
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Welding Engineer / EIT / Technologist
SGS
Nisku, AB
- Full-time
The Welding Engineer / EIT / Technologist provides technical support in welding engineering, welder testing, welding procedure qualification, and parameter monitoring. This role supports…
Added 31 mins ago
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Principal Consultant – AWS Data Platforms & Agentic AI
Apptoza Inc.
Toronto, ON
- Contract
Architect Semantic Layers, Ontologies and Knowledge Graphs, including Amazon Neptune, to support analytics and Agentic AI.
Added 31 mins ago
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Business Intelligence Specialist
Bevertec
Toronto, ON
- Contract
…Intelligence Specialist - Level 3) to provide critical operational support, infrastructure maintenance, and technical leadership for an enterprise Cloudera Data Lake…
Added 31 mins ago
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AI Engineer
Smart IT Frame LLC
Mississauga, ON
- Full-time
Experience with testing, production support, and system reliability.
Added 1 hour ago
SI
Sr. DevSecOps Cloud Specialist
Smart IT Frame LLC
Mississauga, ON
- Contract
…ownership, infrastructure automation, security integration, and production reliability, while operating within a structured ITIL-based support and change management…
Added 1 hour ago
AM
Electrical Manufacturing Engineer
AVL Manufacturing Inc.
Hamilton, ON
- $65,000 to $80,000 CAD / year
- Full-time
The Electrical Manufacturing Engineer's primary function is to bridge the gap between Engineering and Operations, assist/oversee all larger FAT/EQT product testing, and provide support to…
Added 1 hour ago
Pilot Plant Machinist
Gates Corporation
Windsor, ON
…setup, and operation of advanced 5‑axis CNC machining centers to support prototype and low‑volume production of precision components for electric water pumps used in data‑center cooling…
Added 1 hour ago
Staff AI Developer - Vancouver
Robots and Pencils
Vancouver, BC
Support deployment, monitoring, and production troubleshooting in cloud-native environments (AWS, Docker), with guidance from senior engineers where needed
Added 1 hour ago
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Thermal Mechanical Engineering Team Lead
Brunel
Calgary, AB
- $115,000 to $170,000 CAD / year
- Full-time
Lead products through the full development lifecycle, including concept development, prototyping, verification, validation, production transfer, and mass production support.
Added 1 hour ago
Software Engineer, International Expansion
Robinhood
Toronto, ON
The International engineering team's mission is to expand Robinhood's products globally and scale our platform to support millions of new customers in diverse markets. We build and maintain…
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Renewable Energy Asset Manager
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- Full-time
Maximizing production, availability, and revenue across a portfolio of renewable energy assets.
Added 2 hours ago
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Site Reliability Engineer
Tata Consultancy Services
Toronto, ON
- $100,000 to $120,000 CAD / year
- Full-time
Seeking a Site Reliability Engineer with strong experience in production operations, observability, monitoring, and automation to improve application and infrastructure reliability,…
Added 2 hours ago
Staff Engineer / AI Builder - Toronto
Robots and Pencils
Toronto, ON
Support deployment, monitoring, and production troubleshooting in cloud-native environments (AWS, Docker), with guidance from senior engineers where needed
Added 3 hours ago
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Senior Salesforce Engineer
Canadian Cancer Society
Kelowna, BC
- Full-time
…invest in transformative cancer research, we provide a caring support system for everyone affected by cancer and we advocate to governments to create a healthier future for all. It takes a…
Added 3 hours ago
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Senior Electrical Engineer
Shell
Sarnia, ON
- Full-time
The Senior Electrical Engineer provides electrical discipline leadership for assigned operating units and site electrical infrastructure, including technical assurance for capital projects…
Added 4 hours ago
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PD Software for Service
Husky Technologies
Bolton, ON
- Full-time
…attracted to bold goals, believe in uncompromising honesty, support mutual respect, care about environmental responsibility, have a passion for excellence and a desire to make a positive…
Added 4 hours ago
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Lead / Principal Data Engineer - Snowflake & dbt
Mitra AI
Canada
- Contract
We are seeking a highly experienced, hands-on Lead / Principal Data Engineer with deep expertise in Snowflake, DBT, advanced SQL, and modern data engineering practices to support enterprise…
Added 4 hours ago
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Operating Engineer
Mother Parkers Tea & Coffee
Mississauga, ON
- Full-time
Provide technical expertise and support to production management
Added 4 hours ago
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Senior Software Engineer - Data and AI Platforms
lululemon
Vancouver, BC
- Full-time
As a Senior Software Engineer, you will design and build data systems, AI-enabled platform capabilities, and enterprise solutions that support multiple product teams, contributing to…

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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