Jobs in Canada

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Added 3 mins ago
DS
Relief Administration Systems Support
Developmental Services of Leeds and Grenville
Brockville, ON
- Temporary
The position of the Administrative/Systems Support is responsible for ensuring that the agency’s service/information system is both accurate and current and ensuring readily available…
Added 3 mins ago
HT
Financial Manager - PLM (Product Line Mgmt)
Husky Technologies
Bolton, ON
- Full-time
Ensure data consistency and integrity across systems and reporting
Added 3 mins ago
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Commercial Relationship Coordinator
Optum
Richmond, BC
- Full-time
This position follows Office-Based schedule with (4) In-office days per week
Added 3 mins ago
HT
Director, Finance (CSM)
Husky Technologies
Bolton, ON
- Full-time
Added 3 mins ago
NC
AI Software Developer
Newfoundland Capital Corporation Limited
Montreal, QC
- Full-time
We are currently looking for an AI Software Developer to join our AI team. This position reports to the AI Adoption Leader.
Added 3 mins ago
TS
Discovery Representative
TD SYNNEX North America
Mississauga, ON
- $45,000 CAD / year
- Full-time
Ability to learn new technologies, processes, and systems.
Added 3 mins ago
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Gestionnaire principal(e) régional(e) des installations / Regional Facilities Sr Manager
CBRE
Montreal, QC
- Full-time
Engage in high-level problem-solving, addressing organizational challenges that may not be evident in existing systems and processes.
Added 3 mins ago
CO
Technical Lead, HR/Finance (Oracle/PeopleSoft Enterprise FSCM & HCM Technical Administration)
City of Brampton
Brampton, ON
- Full-time
…Evaluate, install, configure, and deploy new applications, systems upgrades, products, and/or enhancements to existing PeopleSoft applications throughout the enterprise, and support…
Added 19 mins ago
Plant Technician 1
Rogers Communications
Edmonton, AB
Operate and test equipment related to the maintenance of 2-way coaxial and fiber systems
Added 19 mins ago
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Senior Software Engineer
SalesJack
Toronto, ON
- Full-time
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
Added 19 mins ago
HH
Sr. RRT - Registered Respiratory Therapist
Hamilton Health Sciences
Hamilton, ON
- Full-time
…files and providing statistical reports utilizing these testing systems, provide patient education regarding their disease process and proper administration of medication, provide…
Added 34 mins ago
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Senior Finance & Operations Experts - AI Benchmarking
Braintrust
Canada
- Internship
Help benchmark AI systems by designing realistic tasks grounded in finance and operations. You’ll turn familiar professional workflows into practical challenges, define what a correct…
Added 34 mins ago
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Clinical Research Manager
RI-MUHC | Research Institute of the MUHC | #rimuhc
Montreal, QC
- Full-time
…recruitment, regulatory and safety activities, data and study systems, study logistics, stakeholder coordination, and study close-out. The role works closely with the Sponsor,…
Added 34 mins ago
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Executive Assistant
RI-MUHC | Research Institute of the MUHC | #rimuhc
Montreal, QC
- Full-time
Maintains and organizes Network documentation, records, filing systems, and shared digital workspaces.
Added 34 mins ago
AC
Multi-Location Restaurant Manager
Aramark Canada
Ottawa, ON · Kanata, ON
- $28 to $30 CAD / hour
- Full-time
Must have reliable personal transportation to and from the arena
Added 34 mins ago
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Fashion Associate (Daytime/Weekday) - Smart Centers Saskatoon South
RCL - Reitmans Canada Ltd/Ltée
Saskatoon, SK
- Part-time
Proficient in POS, ERP, ATS systems and Microsoft Office Suite.
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Clinical Research Coordinator - Regulatory Affairs (CIM)
RI-MUHC | Research Institute of the MUHC | #rimuhc
Montreal, QC
- Full-time
Added 34 mins ago
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Parts Advisor - Dodge City
AutoCanada
Saskatoon, SK
- $54,000 to $66,000 CAD / year
- Other
…Detail-Oriented, Automotive Finishing, Safety Protocols, Automotive Paint Systems, Restoration, Paint Mixing, Defect Correction, Vehicle Detailing, Team Collaboration, Problem-Solving…
Added 34 mins ago
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Receiving, Distribution and Package Delivery Clerk
RI-MUHC | Research Institute of the MUHC | #rimuhc
Montreal, QC
- Full-time
Log package movements in tracking systems (barcode scanners, RFID) and maintain documented traceability,
Added 34 mins ago
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Trust Accounting, Payroll, and Benefits Coordinator
North & Company LLP Law Offices
Lethbridge, AB
- Full-time
…have a strong understanding of accounting principles, payroll systems, and benefits administration, with the ability to multi-task in a fast-paced…
Added 34 mins ago
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Accounts Receivable Analyst
RI-MUHC | Research Institute of the MUHC | #rimuhc
Montreal, QC
- Full-time
Flexible and adaptable, with strong technological aptitude and the ability to quickly learn new systems and tools.
Added 34 mins ago
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Fellowship and Bursary Administrative Assistant
RI-MUHC | Research Institute of the MUHC | #rimuhc
Montreal, QC
- Full-time
Maintains paper and electronic filing systems and orders office supplies,
Added 34 mins ago
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Senior Analyst, Programmer, Enterprise Applications
EKU Master of Public Administration Program
Richmond, BC
- Full-time
…API; XML programming; working knowledge of content management systems such as WordPress (including custom theme/plugin development), Drupal, or Omni CMS; WCAG accessibility standards;…
Added 34 mins ago
EM
Director of Operations
EKU Master of Public Administration Program
Richmond, BC
- Full-time
…a primary focus on driving business innovation through data systems and . The incumbent provides leadership for developing responsible, effective, and ethical business practices while…
Added 34 mins ago
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Optical Systems Architect
Nokia
Ottawa, ON · Kanata, ON
- Full-time
…opportunity to shape the design of novel DWDM optical line systems, from transmission performance to link-level control. Working with our Systems Architecture, Systems Engineering and…

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