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Added 6 mins ago
Senior Java Developer (Deployment Security Team/Citi)
RE Partners
Mississauga, ON
Senior Java Engineer - Deployment Security & Software Reliability
Added 21 mins ago
S
Rail Maintenance Facility Director - Engineering Services
SYSTRA
Toronto, ON
- Full-time
…Metrolinx capital transit expansion portfolio. Serve as the senior technical authority for multidisciplinary rail maintenance facility engineering reviews and stage-gate validations,…
Added 21 mins ago
Intermediate Traffic Engineer
WSP
Dartmouth, NS
…communities across Atlantic Canada. As an Intermediate Traffic Engineer in Dartmouth, you will contribute to transportation and traffic engineering studies for municipal, provincial, and…
Added 21 mins ago
M
Senior Design Engineer - Dampers
Multimatic
Markham, ON
- Full-time
Multimatic’s Damper Design team is looking for a talented Senior Design Engineer to help create innovative solutions for the most advanced OEM applications. The Senior Design Engineer will…
Added 21 mins ago
WI
Intermediate Traffic Engineer
WSP in Canada
Dartmouth, NS
- Full-time
…communities across Atlantic Canada. As an Intermediate Traffic Engineer in Dartmouth, you will contribute to transportation and traffic engineering studies for municipal, provincial, and…
Added 36 mins ago
F
Senior / Staff Engineer, Applied AI (Float Intelligence)
Float
Remote, Canada
- Full-time
- Remote
This posting reflects a current, actively recruited opening at Float. All applications are being reviewed on a rolling basis.
Added 36 mins ago
L
Senior QA Engineer (6-month Contract)
Lazer
Remote, Canada
- Contract
- Remote
We’re looking for a Senior QA Engineer to own quality on a large enterprise Shopify program. You’ll shape the testing approach, guide the QA effort on the project, and keep stakeholders…
Added 36 mins ago
EG
Intermediate Traffic Engineer - Construction Staging
Egis Group
Toronto, ON
- $95,000 to $125,000 CAD / year
- Full-time
Intermediate Traffic Engineer - Construction Staging is a senior-level traffic engineering role based in Toronto, Ontario, Canada, supporting the planning, design, and delivery of…
Added 36 mins ago
EG
Senior Traffic Engineer-(Construction Staging)
Egis Group
Toronto, ON
- $140,000 to $180,000 CAD / year
- Full-time
Senior Traffic Engineering Specialist (Construction Staging) based in Toronto, Ontario, Canada provides technical leadership for traffic engineering, construction staging, and…
Added 36 mins ago
EG
Municipal Engineer - Major Projects
Egis Group
Toronto, ON
- $95,000 to $130,000 CAD / year
- Full-time
Intermediate-to-Senior Municipal Engineer - Major Projects supports the delivery of large-scale transportation and municipal infrastructure programs in Toronto, Ontario, Canada. Working…
Added 36 mins ago
EG
Civil Roadway - Senior Engineer - Major Projects
Egis Group
Toronto, ON
- $125,000 to $175,000 CAD / year
- Full-time
Civil Roadway - Senior Engineer - Major Projects is a senior-level transportation engineering role based in Toronto, Ontario, Canada, supporting the delivery of roadway and highway…
Added 36 mins ago
EG
Roadway Lead - Major Projects
Egis Group
Toronto, ON
- $150,000 to $190,000 CAD / year
- Full-time
Roadway Lead is a senior-level civil infrastructure professional based in Toronto, Ontario, Canada, responsible for providing technical leadership and roadway engineering oversight on…
Added 36 mins ago
A
Senior Hydraulic Pipeline Engineer (Vancouver)
Ausenco
Vancouver, BC
- Full-time
We are currently recruiting for a Senior Hydraulic Pipeline Engineer located in Vancouver working on projects in North America, South America, and around the world.
Added 51 mins ago
GD
Senior Integrations Engineer
Globalfaces Direct
Toronto, ON · North York, ON
- $95,000 to $115,000 CAD / year
- Full-time
…(Insight), and Azure/SQL Server data pipelines. We are seeking a Senior Integrations Engineer to own the architecture, delivery, and reliability of secure, PCI-compliant integrations…
Added 51 mins ago
QT
Développeur logiciel principal - Strata CAD / Senior Software Developer - Strata CAD
Quantum Technology Recruiting Inc. (QTR)
Montreal, QC
- $100,000 to $120,000 CAD / year
- Full-time
We're looking for a highly skilled Senior Windows .NET Software Engineer to join the Engineering department. You'll design and build software solutions using WinForms, WPF and Web Services…
Added 52 mins ago
RC
Senior Building Performance Engineer
Randstad Canada
Vancouver, BC
- $125,000 to $160,000 CAD / year
- Full-time
We are seeking an experienced Sr. Building Performance and Commissioning Engineer for a client of ours in the Vancouver area. The successful candidate will lead and support a wide range of…
Added 1 hour ago
Principal Data Engineer
Scotiabank
Toronto, ON
…Tangerine to enable business analytics and production AI and ML applications, in support of business strategies and objectives. Ensures all activities conducted are in compliance with…
Added 1 hour ago
FG
Software Engineer, Full-Stack Applications (Associate Director)- AI Fluent
Fitch Group
Toronto, ON
- $180,000 to $220,000 CAD / year
Lead Software Engineer, Full-Stack Applications – AI Fluent
Added 1 hour ago
EI
Roadway Lead - Major Projects
Egis in Canada
Toronto, ON
- $150,000 to $190,000 CAD / year
- Full-time
Roadway Lead is a senior-level civil infrastructure professional based in Toronto, Ontario, Canada, responsible for providing technical leadership and roadway engineering oversight on…
Added 1 hour ago
EI
Intermediate Traffic Engineer - Construction Staging
Egis in Canada
Toronto, ON
- $95,000 to $125,000 CAD / year
- Full-time
Intermediate Traffic Engineer - Construction Staging is a senior-level traffic engineering role based in Toronto, Ontario, Canada, supporting the planning, design, and delivery of…
Added 1 hour ago
EI
Civil Roadway - Senior Engineer - Major Projects
Egis in Canada
Toronto, ON
- $125,000 to $175,000 CAD / year
- Full-time
Civil Roadway - Senior Engineer - Major Projects is a senior-level transportation engineering role based in Toronto, Ontario, Canada, supporting the delivery of roadway and highway…
Added 1 hour ago
EI
Municipal Engineer - Major Projects
Egis in Canada
Toronto, ON
- $95,000 to $130,000 CAD / year
- Full-time
Intermediate-to-Senior Municipal Engineer - Major Projects supports the delivery of large-scale transportation and municipal infrastructure programs in Toronto, Ontario, Canada. Working…
Added 1 hour ago
P
Fullstack .NET Engineer | igaming | Base + Benefits
Pentasia
Toronto, ON
- Full-time
My client is seeking a highly skilled Senior Full Stack .NET Developer to join a fast-paced technology team responsible for developing and enhancing mission-critical platforms. This role…
Added 1 hour ago
EI
Senior Traffic Engineer-(Construction Staging)
Egis in Canada
Toronto, ON
- $140,000 to $180,000 CAD / year
- Full-time
Senior Traffic Engineering Specialist (Construction Staging) based in Toronto, Ontario, Canada provides technical leadership for traffic engineering, construction staging, and…
Added 1 hour ago
CO
Senior Manager, Software Engineering
Capital One
Toronto, ON
- Full-time
161 Bay Street (93021), Canada, Toronto,Toronto, Ontario,Senior Manager, Software Engineering

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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