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Added 6 mins ago
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Senior Software Engineer, NeMo Helix Core Platform
NVIDIA
Toronto, ON
- Full-time
We are looking for a Senior Software Engineer to help build NeMo Helix, NVIDIA’s product for developing, evaluating, deploying, and operating AI systems at scale. This role is for a senior…
Added 6 mins ago
S
Platform Solution Architect /Architecte de solutions de plateforme (Montreal/Toronto)
Slalom
Toronto, ON · Greater Toronto Area, Canada
- Full-time
We’re looking for a Senior Platform Engineer to join a North America-based team focused on delivering secure, scalable automation and cloud platforms. This role is about enabling teams to…
Added 7 mins ago
AM
Senior Firmware Engineer
Advanced Micro Devices, Inc
Markham, ON
- Full-time
We are looking for an experienced and passionate Firmware Engineer to join the NBIO team and drive HW/FW co-development for IP sub-systems. In this role, you will collaborate with hardware,…
Added 37 mins ago
CT
Senior Network & Security Engineer
Charter Telecom
Burnaby, BC · Vancouver, British Columbia
- Full-time
We are seeking an experienced Senior Network & Security Engineer to design, implement, and support enterprise networks for clients. You will lead network projects from design through…
Added 37 mins ago
CT
Senior Network & Security Engineer
Charter Telecom
Calgary, AB
- Full-time
We are seeking an experienced Senior Network & Security Engineer to design, implement, and support enterprise networks for clients. You will lead network projects from design through…
Added 1 hour ago
Senior Product Cybersecurity Engineer - Platform Security
L3Harris Technologies
Montreal, QC
Job Title: Senior Product Cybersecurity Engineer – Platform Security
Added 1 hour ago
HR
Technical Safety Specialist
Hitachi Rail
Toronto, ON
- Full-time
Minimum 10 years of experience in a senior technical role in train control systems or automation in other industries such as aerospace, defense, automotive, medical or nuclear
Added 1 hour ago
HR
Technical Safety Specialist
Hitachi Rail
Burnaby, BC
- Full-time
Minimum 10 years of experience in a senior technical role in train control systems or automation in other industries such as aerospace, defense, automotive, medical or nuclear
Added 1 hour ago
CT
Senior Network & Security Engineer
Charter Telecom
Victoria, BC
- Full-time
We are seeking an experienced Senior Network & Security Engineer to design, implement, and support enterprise networks for clients. You will lead network projects from design through…
Added 1 hour ago
CC
Operating Engineer
Cameco Corporation
Port Hope, ON
- Full-time
Valid 2nd Class TSSA Operating Engineer certification. Will consider a valid 3rd Class TSSA certification that can demonstrate progression to 2nd Class
Added 1 hour ago
TU
Assistant Professor or Associate Professor in Computer Engineering
The University of British Columbia
Vancouver, BC
- Full-time
…data-intensive systems and storage; and hardware and systems security. We particularly welcome candidates whose work crosses traditional boundaries within computer engineering or connects…
Added 2 hours ago
M
Lead AI Solutions Engineer
McKesson
Mississauga, ON
- Full-time
As a senior technical leader, this role provides end-to-end ownership of the early solution lifecycle, influences enterprise AI adoption, drives technical direction across initiatives, and…
Added 2 hours ago
ES
Senior Site Reliability Engineer – AEM
Epsilon Solutions Ltd.
Toronto, ON
- Full-time
Senior Site Reliability Engineer – Adobe Experience Manager (AEM), CDN and Edge Delivery
Added 3 hours ago
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Senior Yocto Developer Toronto
Litmus
Remote, Canada
- Full-time
- Remote
We are looking for a highly skilled and passionate Senior Yocto & Linux Software Engineer to join our engineering team in Toronto. In this role, you will be responsible for developing,…
Added 3 hours ago
AI
Senior Hardware Design Engineer
Aversan Inc.
Mississauga, ON
- Full-time
We are currently seeking a qualified Senior Hardware Design Engineer to join our team. The Senior Hardware Design Engineer will be part of the hardware design and development team and work…
Added 3 hours ago
NS
Senior Site Reliability Engineer (SRE) – CDN & Web Performance
N2P Systems
Toronto, ON
- Full-time
We are seeking a Senior Site Reliability Engineer (SRE) to help build and operate a modern, public-facing enterprise web platform delivered through Adobe Experience Manager (AEM) Edge…
Added 3 hours ago
UO
Assistant Professor or Associate Professor in Computer Engineering
University of British Columbia
Vancouver, BC · UBCV | Fred Kaiser Building (KAIS)
- Full-time
…data-intensive systems and storage; and hardware and systems security. We particularly welcome candidates whose work crosses traditional boundaries within computer engineering or connects…
Added 3 hours ago
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Canada Renewable Energy Engineering Leader
Arup
Toronto, ON
- Full-time
While broad capability across renewable technologies is essential, strong experience delivering owner’s engineer and/or detailed design for renewable energy projects is a core requirement,…
Added 3 hours ago
SI
Senior Cryptographic Protocol Engineer
SuperQubit Inc.
Markham, ON
- Full-time
Job Title: Senior Cryptographic Protocol Engineer
Added 4 hours ago
SC
Spécialiste Conformité Electronique & Tests (Senior)
SII Canada
Montreal, QC
- Full-time
Professional Engineer designation or eligibility for professional engineering membership.
Added 4 hours ago
JW
Senior Software Engineer, Tokenization
Jobs Web3
Toronto, ON
- Full-time
As a Senior Software Engineer, you will design and build the core systems that issue, custody, and settle tokenized equities on-chain and keep them in sync with traditional brokerage and…
Added 4 hours ago
RI
Senior Full Stack Engineer - Java /
Rose International
Mississauga, ON
- Full-time
Job Title: Senior Full Stack Engineer - Java / AI
Added 4 hours ago
S
Senior Software Engineer, Platform & Infrastructure
Spellbook
Canada
- Full-time
Spellbook is seeking a generalist Platform and Infrastructure Engineer to join our team. In this role, you'll work across our entire technical stack - from infrastructure (AWS, MongoDB,…
Added 4 hours ago
R
Data Engineering Manager
Relay
Remote, Canada
- $207,000 to $253,000 CAD / year
- Full-time
- Remote
Lead and grow a senior team of data engineers. With an experienced team in place, your role is to provide direction, challenge thinking, and help the team make decisions and move work…
Added 4 hours ago
TT
Senior Civil Engineer
Tetra Tech
Pickering, ON
- Full-time
We are currently seeking a Senior Civil Engineer for our Pickering, ON office. This posting is for an existing vacancy for which we are actively recruiting. To perform this job…

Closed listing

Robots & Pencils

Staff Engineer / AI Builder

Canada

Our salary range is $176,612 - $243,680 CAD · Full-time

This opening has closed.

The original listing is kept below for reference.

Find open jobs More jobs with this employer

About employer

Job details

Pay: Our salary range is $176,612 - $243,680 CAD
Job type: Full-time
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: Oct 7, 2026

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Original job description

Archived listing. The details below describe a past opening.

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

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

Our salary range is $176,612 - $243,680 CAD

About employer

More about this job

Responsibilities

Lead the architecture, development, evaluation, and production delivery of reliable AI/ML systems, including agentic workflows, RAG pipelines, and integrations with AWS services. Own features and releases end-to-end, establish engineering standards, collaborate across product and delivery teams, and mentor engineers.

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 GenAI and cloud services, and the ability to own complex integration and reliability challenges.

Skills

Agentic AI
Generative AI
Large Language Models
Python
Node.js
AWS Bedrock
Amazon Bedrock Agent Core
Retrieval-Augmented Generation
OpenSearch
Prompt Engineering
LLM Evaluation
LLM Observability
DynamoDB
AWS Lambda
Step Functions
Docker

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
API Gateway
DynamoDB
S3
SQS
EventBridge
Step Functions
Docker
Circuit Breakers

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