hamilton on full stack Jobs – 8 Openings This Week

Senior Software Engineer
SalesJack —Hamilton, ON
- $180,000–$200,000 a year
- Full-time
- Hybrid work
- APIs
10d
Java Developer
TransUnion —Burlington, ON
- $89,000–$123,000 a year
- Full-time
- Hybrid work
- DevOps
- Java
- Databases
GIS Lead GIS Lead Engineering Hamilton, ON, CA May 22, 2026
Aecon Group —Hamilton, ON
- $100,000–$110,000 a year
- Construction
- Communication skills
- Time management
FullStack Developer | WEB, IOS, and Android | Contract
Filipe —Hamilton, ON
- $1,000–$5,000 a week
- Temporary
- Hybrid work
- AI
Quick apply
7d
.NET Developer – Burlington
SearchVelocity —Burlington, ON
- Azure
- Java
- SQL
Full Stack Software Developer
Sequoia Software —Canada
- $70,000–$80,000 a year
- Full-time
- JavaScript
- Software development
- Dental care
- Paid time off
Quick apply
Staff Developer
EBlock Inc. —Canada
- $170,000–$190,000 a year
- Full-time
- Remote
- Computer Science
- DevOps
- Java
- Dental care
- Paid time off

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Senior Software Engineer

SalesJack
Hamilton, ON

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Job details

Full-time
$180,000–$200,000 a year
10 days ago

Qualifications

Jira
Node.js
React
Full-stack development
PostgreSQL
RabbitMQ
B2B
APIs

Full 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.

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 while also bringing real product taste to the work. This is a hands-on role: writing production code daily, 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 the team 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
Design and operate authentication, authorization, and multi-tenant RBAC systems that hold up under real customer load
Build durable, queue-driven automation with BullMQ — orchestrating long-running processes, retries, and integrations against external ERPs and third-party APIs
Set technical standards (testing, code review, CI/CD, observability) and raise the bar for everyone around you, including the founders
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

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

Hiring Process

Initial call with our founding engineer to discuss your background and introduce SalesJack (~30 mins)
Technical Exercise: Product Design, Live coding and problem-solving session (~2.5 hours, might be 2 separate sessions)
Product and culture call with one of our founders (~30 mins)
Offer

Compensation Range: CA$180K - CA$200K

Apply Now

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full stack jobs in hamilton on

Senior Software Engineer

Java Developer

GIS Lead GIS Lead Engineering Hamilton, ON, CA May 22, 2026

FullStack Developer | WEB, IOS, and Android | Contract

.NET Developer – Burlington

Full Stack Software Developer

Staff Developer

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