Jobs in Canada

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Added 9 mins ago
S
Senior Software Engineer
SalesJack
Toronto, ON
- Full-time
As a Senior Full Stack Software Engineer at SalesJack, you’ll be one of the senior technical hires on the team, owning major product surfaces end-to-end. That means more than writing code:…
Added 54 mins ago
A
Senior Test Engineer
Actalent
Ottawa, ON · Nepean, ON
- $50 to $60 CAD / hour
- Contract
The Test Engineer supports new product introduction and manufacturing test for fiber optic la equipment. This role sits alongside R&D while owning manufacturing-focused test activities…
Added 54 mins ago
R&D Engineering, Engineer
Synopsys
Vancouver, BC
…semiconductor industry, and you will have the space to grow into the engineer you want to…
Added 54 mins ago
RH
Senior Manager Analytics
Robert Half
Mississauga, ON
- $70 to $95 CAD / hour
- Contract
Work Arrangement: Hybrid, with 4 days per week onsite
Added 54 mins ago
SC
Commercial Lead
SYSTRA Canada
Toronto, ON
- Full-time
We are looking for a Senior Commercial Manager for the GoExpansion project as part of the MCS Delivery Partner Consortium.
Added 2 hours ago
CE
Project Engineer
Circuit Energy
Toronto, ON · North York, ON
- Full-time
Location: North York, Ontario (office on the Yonge subway line), with regular travel to client sites across Ontario Type: Full-time, permanent Reports to: Senior Lead Engineer
Added 3 hours ago
QT
Building Science Lead
QEA Tech
Toronto, ON · Greater Toronto Area, Canada
- Full-time
The Building Science Lead will be responsible for maintaining the quality and consistency of technical deliverables, supporting the development of team members, helping coordinate…
Added 3 hours ago
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Senior Project Manager
Worley
Markham, ON · Vancouver, BC · Calgary, AB
- Full-time
We are seeking an accomplished and highly effective Senior Project Manager to oversee the planning, execution, and closure of large, complex capital projects valued over 1Billion across our…
Added 3 hours ago
MH
Sr. Full Stack Software Engineer (Backend - AI products)
MedMe Health
Remote, Canada
- $116,000 to $156,000 CAD / year
- Full-time
- Remote
We're at an exciting point: agentic automation is moving from prototype to production, and we need a senior engineer who can own high-impact work end-to-end. You'll turn ambiguous goals…
Added 4 hours ago
MH
Sr. Full Stack Software Engineer (Backend - AI products)
MedMe Health
Toronto, ON
- $116,000 to $156,000 CAD / year
- Full-time
We're at an exciting point: agentic automation is moving from prototype to production, and we need a senior engineer who can own high-impact work end-to-end. You'll turn ambiguous goals…
Added 4 hours ago
S
Senior Process Engineer
Sacré-Davey
North Vancouver, BC
- Full-time
We are seeking a highly skilled Senior Process Engineer with strong mineral processing and metallurgical experience to join our team. In this role, you will support and lead process…
Added 4 hours ago
A
Senior Process Engineer*** Analyste principale, ingénieur de procédés
Aliaxis
Montreal, QC · AB · L'Assomption, QC · Saint-Joseph-de-Beauce, QC · Clarkson, ON · CA - Clarkson - Office
- Full-time
We currently have an exciting opportunity as a Senior Process Engineer / Specialist - Extrusion. This position may be based Oakville, ON, Montreal, QC, Pineville, NC or one of IPEX's…
Added 4 hours ago
IG
Senior Process Engineer*** Analyste principale, ingénieur de procédés
IPEX Group
Montreal, QC · AB · L'Assomption, QC · Saint-Joseph-de-Beauce, QC · Clarkson, ON · CA - Clarkson - Office
- Full-time
We currently have an exciting opportunity as a Senior Process Engineer / Specialist - Extrusion. This position may be based Oakville, ON, Montreal, QC, Pineville, NC or one of IPEX's…
Added 4 hours ago
M
Director Systems Assurance
Mace
Toronto, ON
- Full-time
Licensed Professional Engineer (P.Eng.) in good standing with Professional Engineers Ontario (PEO).
Added 5 hours ago
A
Structural Design Engineer/EIT
AECOM
Calgary, AB · Edmonton, Alberta
- $65,000 to $80,000 CAD / year
- Full-time
AECOM Buildings + Places is seeking a motivated and technically skilled Structural Design Engineer or EIT to join our growing Buildings + Places team in Calgary or Edmonton, AB.
Added 5 hours ago
P
Principal Geotechnical Engineer
Proven
Calgary, AB
- Full-time
PRI is seeking a Principal Geotechnical Engineer to anchor and grow our Calgary office. This is a senior leadership role for an established geotechnical engineer with a strong market…
Added 5 hours ago
PE
Principal Geotechnical Engineer
PRI Engineering
Vancouver, BC
- Full-time
PRI is seeking a Principal Geotechnical Engineer to anchor and grow our Vancouver office. This is a senior leadership role for an established geotechnical engineer with a strong market…
Added 5 hours ago
PE
Principal Geotechnical Engineer
PRI Engineering
Calgary, AB
- Full-time
PRI is seeking a Principal Geotechnical Engineer to anchor and grow our Calgary office. This is a senior leadership role for an established geotechnical engineer with a strong market…
Added 5 hours ago
P
Principal Geotechnical Engineer
Proven
Vancouver, BC
- Full-time
PRI is seeking a Principal Geotechnical Engineer to anchor and grow our Vancouver office. This is a senior leadership role for an established geotechnical engineer with a strong market…
Added 5 hours ago
M
Director - Engineering
Mace
Toronto, ON
- Full-time
Provide senior oversight of rail-related technical risks, engineering variances, technical reviews and contractor and consultant submissions.
Added 5 hours ago
PC
Principal Geotechnical Engineer
PRI Consultants
Vancouver, BC
- $173,000 to $237,000 CAD / year
- Full-time
PRI is seeking a Principal Geotechnical Engineer to anchor and grow our Vancouver office. This is a senior leadership role for an established geotechnical engineer with a strong market…
Added 6 hours ago
M
Systems and Safety Assurance Engineer
Mace
Toronto, ON
- Full-time
Licensed Professional Engineer (P.Eng.) in good standing with Professional Engineers Ontario (PEO).
Added 6 hours ago
MC
Technical Consultant III (35732)
Myticas Consulting
Toronto, ON
- Full-time
Technical Consultant III (Software Engineer, Senior/Lead)
Added 6 hours ago
MC
Senior QA Engineer III – Automation | Banking | API | Kafka | ETL (35729)
Myticas Consulting
Ottawa, ON
- Full-time
You are a hands-on senior QA automation engineer who can go beyond executing existing test scripts. You can design frameworks, understand complex backend integrations, trace data across…
Added 6 hours ago
MC
Data Analyst – Power BI Microsoft Fabric (36191)
Myticas Consulting
Ottawa, ON
- Full-time
Reporting to a senior technology leader and working closely with a Data Architect, you will design and maintain dashboards, reports, data models and analytical solutions using Microsoft…

SalesJack

Senior Software Engineer

Toronto, ON, Canada

Full-time

Apply on jobs.ashbyhq.com About employer

Applications open in a new tab.

Job details

Job type: Full-time
Experience: 8–10 years of full stack engineering experience, including time spent owning systems in production at meaningful scale
Posting language: English
Posted: Nov 10, 2026

Original job description

Senior Full Stack Software Engineer

Location: Onsite in Toronto, ON

About SalesJack

SalesJack is a fast-growing, profitable sales software platform (CRM, Prospecting Service) purpose-built for independent businesses in the construction supply industry. Our team and customers are spread across the US and Canada. Our mission: build tools that solve real problems for our customers and transform industry workflows.

We’re an AI-native engineering team. AI agents are part of how we write, review, test, and ship code every day, and LLMs power real features in our product and data pipelines. We’re looking for engineers who already work this way and want to push it further.

Your Role

As a Senior Full Stack Software Engineer at SalesJack, you’ll be one of the senior technical hires on the team, owning major product surfaces end-to-end. That means more than writing code: you’ll talk to customers, scope what to build, make the product calls, and ship it. We don’t have a PM layer between engineering and customers; the engineers closest to the problem own the solution.

You’ll partner directly with the founders and lead engineers to set architectural direction and raise the engineering bar, including how the team uses AI to move faster without lowering quality. This is a hands-on role: shipping production code daily with AI as a force multiplier, making the calls on what gets built and how it scales, and sweating the details of how it feels to use.

We highly value a startup mentality. Strong opinions held loosely, fast iteration, and a bias toward shipping over deliberating.

What You'll Do:

Own entire product features from “this is a problem worth solving” to “this is live in customers’ hands”: scoping, designing, building, shipping, iterating
Talk to customers directly: discovery calls, support tickets, ride-alongs with sales reps in lumberyards. Use what you learn to make better product decisions
Make the architectural calls on new systems (data model, API surface, frontend composition) and document the reasoning so both the team and our AI tooling can build on it
Build across our Node.js stack: Next.js on the frontend, Node services on the backend, BullMQ for background jobs and workflows, PostgreSQL as the system of record
Work AI-first: use coding agents (Claude Code, Cursor, Codex, or similar) to plan, implement, refactor, test, and review, and stay accountable for every line that ships
Design and ship LLM-powered product features: extracting structured data from messy sources, automating rep workflows, surfacing insights from ERP and sales data, with evals, guardrails, and cost/latency budgets that hold up in production
Design and operate authentication, authorization, and multi-tenant RBAC systems that hold up under real customer load, including in agent and LLM-driven flows
Build durable, queue-driven automation with BullMQ: orchestrating long-running processes, retries, LLM calls, and integrations against external ERPs and third-party APIs
Set technical standards (testing, code review, CI/CD, observability, and AI-assisted development practices) and raise the bar for everyone around you
Build reusable AI context for the team: project conventions, agent instructions, skills, and MCP integrations that make every engineer and agent more effective
Mentor engineers and lead design reviews

What We're Looking For:

Engineering

8–10 years of full stack engineering experience, including time spent owning systems in production at meaningful scale
Deep expertise in React and Next.js, with a strong point of view on component architecture, state management, and performance
Strong backend chops in Node.js - you've designed and operated services, not just built features inside them
Advanced PostgreSQL - schema design, query optimization, migrations under load, multi-tenant patterns
Production experience with auth/RBAC systems, especially in multi-tenant B2B contexts
Hands-on experience with BullMQ or comparable queue/job systems (Sidekiq, RabbitMQ, SQS, Temporal) - and a clear sense of when to reach for them vs. simpler patterns

AI-Native Dev

Hands-on experience building and running AI agents that do verifiably correct work. You design the guardrails that make agent output trustworthy: test suites and type checks the agent must pass, eval harnesses, golden datasets, self-verification loops, and human-review checkpoints where they matter. You can explain how you know an agent’s work is right, not just that it looks right
You use AI coding agents as a core part of your daily workflow, not occasionally. You can walk us through how you delegate work to agents, what you hand off vs. keep, and how you verify the output
Sharp judgment as the final reviewer. You catch subtle bugs, security issues, and bad architectural suggestions that slip past automated checks, and you know when an agent is confidently wrong
You’ve shipped LLM-powered features to production: prompt design, structured outputs, tool use, and handling failure modes like hallucination, malformed responses, rate limits, and cost overruns
You think about evals. You can define what “good” looks like for an AI feature and measure it rather than eyeballing it
Familiarity with the current AI tooling landscape (agent frameworks, MCP, model APIs from Anthropic/OpenAI/others) and strong opinions about what’s useful vs. hype
Bonus: you’ve built internal tools, agent workflows, or context systems that made a whole team more productive with AI

Product

A real product brain. You can be handed a fuzzy customer problem and come back with a scoped, shippable plan - not a Jira ticket asking for specs
Strong product taste. You push back on bad designs, come up with better ones, and have opinions about what "good" looks like in B2B software
Customer instinct. You actually want to talk to users, watch them work, and let what you learn shape the product. You don't need to be shielded from messy customer feedback
Ability to make tradeoff calls - what to cut, what to defer, what to over-invest in - without needing a PM to break the tie

Why Join Us:

Profitable and growing
Fast iteration, direct collaboration with founders, and unfiltered customer feedback
Highly competitive salary and comprehensive health benefits

Apply on jobs.ashbyhq.com About employer

More about this job

Responsibilities

Own product features end to end, from customer discovery and scoping through architecture, implementation, launch, and iteration. Build and operate full-stack and AI-powered systems, establish engineering and AI development standards, and mentor engineers.

Requirements

Requires 8–10 years of full-stack engineering experience, with deep expertise in React, Next.js, Node.js, PostgreSQL, production authentication and authorization, and queue or job systems. Candidates should also have hands-on experience with AI coding agents and production LLM features, strong product judgment, and the ability to validate agent output and make independent technical decisions.

Skills

React
Next.js
Node.js
PostgreSQL
BullMQ
Full-Stack Engineering
AI Agents
LLM Feature Development
Prompt Design
AI Evaluation
Authentication and Authorization
Multi-Tenant RBAC
API Design
Queue-Driven Automation
System Architecture
Customer Discovery

Benefits

Health Benefits

Visa sponsorship

Not detected in the job text

Keywords

React
Next.js
Node.js
PostgreSQL
BullMQ
Claude Code
Cursor
Codex
AI Agents
Large Language Models
Prompt Design
Structured Outputs
Evaluation Harnesses
Golden Datasets
Model Context Protocol
Anthropic
OpenAI
Authentication
Authorization
Role-Based Access Control
Multi-Tenant Systems
API Design
Background Jobs
Queue-Driven Workflows
ERP Integrations
Testing
CI/CD
Observability
B2B Software
Customer Discovery

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Work requirements

Jobs in Canada