Jobs in Canada

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Added 4 mins ago
LH
Exercise Therapist
Lifemark Health Group
Mississauga, ON
- Full-time
Must have a full drivers license, reliable car and willingness to travel between sites throughout the region
Added 20 mins ago
S
Senior Software Engineer
SalesJack
Toronto, ON
- Full-time
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…
Added 34 mins ago
R|
Project Manager
RI-MUHC | Research Institute of the MUHC | #rimuhc
Montreal, QC
- Contract
Clinical supervision and quality assurance: Supervise and train clinical research staff and lead scoring reviews to support inter-rater reliability, consistency, and ongoing clinical…
Added 34 mins ago
N
Optical Systems Architect
Nokia
Ottawa, ON · Kanata, ON
- Full-time
…optical line systems, from transmission performance to link-level control. Working with our Systems Architecture, Systems Engineering and Software Development teams, you will turn emerging…
Added 34 mins ago
CO
Bylaw Enforcement Coordinator
City of Winnipeg
Winnipeg, MB
- Full-time
Oversight and Quality Control of Field Operations.
Added 1 hour ago
A
Industrial Engineering Coordinator
Actalent
Mirabel, QC
- $45 to $60 CAD / hour
- Contract
Organize and lead cross-functional workshops (Continuous Improvement Projects, Kaizen events, Vision/Strategy workshops).
Added 1 hour ago
U
Revenue Recovery Package Handler - Day sort Montreal hub
UPS
Montreal, QC
- Full-time
…help you become better every day. We know what it takes to lead UPS into tomorrow - people with a unique combination of skill + passion. If you have the qualities and drive to lead yourself…
Added 1 hour ago
U
Revenue Recovery Package Handler - Day sort Montreal hub
UPS
Montreal, QC
- Full-time
…help you become better every day. We know what it takes to lead UPS into tomorrow - people with a unique combination of skill + passion. If you have the qualities and drive to lead yourself…
Added 1 hour ago
SC
Commercial Lead
SYSTRA Canada
Toronto, ON
- Full-time
Manages the ongoing maintenance of standards, guidelines and contract and commercial management control systems that promote safe, efficient and cost-effective commercial oversight, using…
Added 1 hour ago
MM
Manufacturing Engineer
Modine Manufacturing Company
Calgary, AB
- Full-time
Lean and Continuous Improvement: Lead continuous improvement initiatives by applying Lean Manufacturing, Six Sigma, 5S, and other CI methodologies to improve product quality, process…
Added 2 hours ago
BC
Bed Allocator
Brant Community Healthcare System
Brantford, ON
- Full-time
Must be able to work all shifts including weekends, holidays and 12-hour shifts
Added 2 hours ago
SE
Sr End User Key Accounts Manager, Power & Grid
Schneider Electric
Toronto, ON · Milton, ON
- Full-time
Lead complex opportunities from early customer engagement and solution positioning through negotiation and close.
Added 2 hours ago
W
Project Manager
Worley
Edmonton, AB
- Full-time
…engineering leads, Procurement, Project Controls, Document Control, Construction, customers and vendors, this role supports the delivery of complex project scope in accordance with safety,…
Added 2 hours ago
S
DCN Connectivity Engineer
SLB
Calgary, AB
- Full-time
…final handover. Working closely with Engineering, Construction, Quality, Project Management, and installation contractors, the Connectivity Engineer ensures connectivity systems are…
Added 3 hours ago
TC
Senior Quality Assurance Manager – Food Manufacturing
TROIS Collective
Toronto, ON
- Full-time
On-site (5 days per week)
Added 3 hours ago
LL
Dock Lead Hand- 2nd Shift
Lineage Logistics
Calgary, AB
- Full-time
…to make certain company and customer standards of service, quality, safety, and productivity are…
Added 3 hours ago
QT
Project Coordinator Lead (Drone Operations Department)
QEA Tech
Toronto, ON · Greater Toronto Area, Canada
- Full-time
Support quality control review of collected data and deliverables prior to handoff.
Added 3 hours ago
JF
Restaurant Supervisor
Jollibee Foods Corporation North America
Vancouver, BC
- $20.25 CAD / hour
- Full-time
- Part-time
Lead/manage service crew to achieve the highest product quality and supplies availability levels and ensure that product is always available during the assigned shift.
Added 3 hours ago
JF
Restaurant Supervisor
Jollibee Foods Corporation North America
Edmonton, AB
- $17.55 CAD / hour
- Full-time
- Part-time
Lead/manage service crew to achieve the highest product quality and supplies availability levels and ensure that product is always available during the assigned shift.
Added 3 hours ago
W
Senior Project Manager
Worley
Markham, ON · Vancouver, BC · Calgary, AB
- Full-time
Team Management: Lead, mentor, and motivate large, integrated project teams, including Engineering, Procurement, Project Controls, Construction Management, and Quality Assurance personnel.
Added 3 hours ago
S
DCN Manufacturing Engineer
SLB
Canada
- Full-time
…troubleshooting production challenges, and improving product quality and manufacturing efficiency. Working closely with Production, Quality, Supply Chain, and Engineering teams, they will…
Added 4 hours ago
TS
Operations Supervisor
TalentSphere Staffing Solutions
Brantford, ON
- Full-time
Operations Supervisor – Day Shift · Our client, an established manufacturing organization, is seeking a hands-on Production/Operations Supervisor to lead its day shift operations
Added 4 hours ago
TP
Manager, IT Vendor Performance & IT Audit
Toronto Pearson International Airport
Toronto, ON
- Full-time
You will build and mature vendor performance and IT audit practices, lead strategic supplier governance, and work closely with IT, Procurement Services, Finance, business leaders and…
Added 4 hours ago
AW
Software Development Manager, S3 Storage
Amazon Web Services (AWS)
Vancouver, BC
- Full-time
The ideal candidate is excited about the potential of cloud computing and is passionate about delivering quality services in a hyper-growth environment where priorities can shift fast. You…
Added 4 hours ago
S
Senior Process Engineer
Sacré-Davey
North Vancouver, BC
- Full-time
Lead and mentor junior and intermediate engineers, fostering a culture of continuous improvement and technical excellence.Monitoring and control engineering deliverables to stay on budget…

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