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Added 10 mins ago
Electrical Engineer - Transportation Buildings
WSP in Canada
Markham, ON
Full-time
Your impact starts here. As an Electrical Engineer with WSP, you will contribute to complex transportation and building projects that support safe, reliable, and sustainable land, air, and…
Added 10 mins ago
Senior Water Engineer
Stanley Consultants
St. Thomas, ON
Full-time
Stanley Consultants is seeking a Senior Water Engineer to join our West Palm Beach, FL office in support of a multi-disciplinary team delivering projects throughout the US Virgin Islands.…
Added 10 mins ago
Intermediate Engineer, Electrical
DMC Mining Services
Vaughan, ON
Full-time
DMC is currently looking for a Intermediate Engineer, Electrical to join our team on a permanent basis, based in Vaughan, Ontario. The Intermediate Engineer, Electrical will be responsible…
Added 10 mins ago
Maintenance Services Worker
HealthCareersInSask.ca
Kindersley, SK
Part-time
Refrigeration Engineer certificate, where required by the job
Added 25 mins ago
Software Chief Engineer
Kepler Communications Inc.
Canada
Full-time
As the Software Leader/Chief Engineer, you are the senior technical authority for software across Kepler’s programs and the point of technical accountability for the integrity and coherence…
Added 25 mins ago
AI Engineer- EN
RBC
Montreal, QC
Full-time
The AI & Digital Innovation team in RBC Capital Markets is seeking an AI Engineer with expertise in software engineering, applied AI, Generative AI, and quantitative computation to…
Added 25 mins ago
Software Engineer III
trane technologies
Montreal, QC
Full-time
…driving analytics for greater efficiency, your ideas will help engineer solutions for stronger communities and a sustainable…
Added 1 hour ago
Staff Marketing Technology Engineer
Absorb
Remote, Canada
Full-time · Remote
“As our Marketing Technology Engineer, you’ll do more than keep our data platform humming - you’ll build the AI applications and agents that put that data to work, automating how our…
Added 1 hour ago
SAP SuccessFactors Engineer
Kamptos Technologies LLC
Toronto, ON
Contract
Urgent need for Hybrid SAP SuccessFactors Engineer in Toronto, ON/Vancouver, BC. Please connect with me if you’re currently exploring new opportunities.
Added 2 hours ago
Associate or Vice President Full Stack Engineer
BMO Capital Markets
Toronto, ON
Part-time
We are seeking an exceptional Full Stack Engineer to join our Data Cognition Team at BMO Capital Markets. In this pivotal role, you will architect, develop, and implement innovative…
Added 2 hours ago
ERP Business Analyst
Husky Technologies
Bolton, ON
Full-time
Advanced business process knowledge in one or more of the following areas: Finance, Discrete Manufacturing, Engineer-to-Order (ETO) Manufacturing, Supply Chain, Warehouse Management, and…
Added 2 hours ago
Civil Designer / EIT – Technology & Innovation Lead
Torus Talent
Vancouver, BC · Greater Vancouver, BC
$80,000 to $120,000 CAD / year
Full-time
…is seeking an intermediate civil designer, technologist, or Engineer-in-Training who enjoys construction planning and finding practical ways to use technology. This role combines civil…
Added 3 hours ago
Senior Manager, Engineering & Build
Royal Bank of Canada
Toronto, ON
Full-time
Engineer resilient, observable ingestion patterns (batch first, with optional near-real-time).
Added 3 hours ago
AI Engineer
Royal Bank of Canada
Toronto, ON
Full-time
The AI & Digital Innovation team in RBC Capital Markets is seeking an AI Engineer with expertise in software engineering, applied AI, Generative AI, and quantitative computation to…
Added 3 hours ago
Pipefitter (Site Based)
Fortis Mining Engineering & Manufacturing
Saskatoon, SK
Full-time
Innovation– if it doesn’t exist, we will engineer and manufacture it
Added 3 hours ago
Principal Piping Engineer
Worley
Edmonton, AB · Calgary, AB
Full-time
As a Lead Piping Engineer at Worley, you will provide senior-level technical leadership and project delivery expertise within our Canada West Engineering team. This role is responsible for…
Added 4 hours ago
Pipefitter (Site Based)
Northern Strands Group of Companies
Saskatoon, SK
Full-time
Innovation- if it doesn’t exist, we will engineer and manufacture it
Added 4 hours ago
QA Automation Engineer
CGI
Toronto, ON
Full-time
We are looking for an experienced QA Automation Engineer to support the design, development, and implementation of enterprise-scale automation solutions across desktop, web, and API…
Added 4 hours ago
Quality Engineering
CGI
Toronto, ON
Full-time
We are seeking an experienced Quality Engineer (QE) with strong hands-on functional testing expertise to support complex enterprise applications. The ideal candidate will have experience…
Added 4 hours ago
Quality Assurance Automation Engineer
Insight Global
Mississauga, ON
$85,000 to $95,000 CAD / year
Full-time
Added 4 hours ago
QA Engineer - Data, ETL and API Testing
CGI
Toronto, ON
Full-time
We are looking for a skilled QA Engineer with experience in data validation, ETL testing, API testing, and cloud-based data platforms. The successful candidate will bring strong analytical…
Added 4 hours ago
Linux Desktop Engineer
Celestica International LP
Toronto, ON
$89,355 to $124,779 CAD / year
The Linux Desktop Engineer will own the design, deployment, configuration, and structural maintenance of Celestica's high-performance Linux computing platform. This role directly supports…
Added 4 hours ago
UX Designer
First National Financial LP
Toronto, ON · East York, ON
Full-time
Internal: Embedded in a First National product squad works with the Product Manager, the Residential Underwriting Business SME, AI Engineers, full stack engineers, and the QA Engineer.
Added 5 hours ago
Staff Software Engineer, Merchant Shopping Growth and Insights AI/ML
Google
Waterloo, ON
Internship
Added 5 hours ago
Data Engineer
VySystems
Canada
Full-time

Lightspeed Commerce, Inc.

Principal Software Developer

Remote, Canada

Job type: Full-time
Workplace: Remote
Posting language: English
Posted: Sep 23, 2026

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Original job description

Hi there! Thanks for stopping by 👋

Are you actively looking for a new opportunity? Or just checking the market? Well… you might just be in the right place!

We’re looking for a Principal Engineer to help shape the architecture and technical direction of Lightspeed’s Retail Point of Sale experience - the software merchants rely on to run their stores, serve their customers, and keep their businesses moving.

This is a high-impact individual contributor role. You’ll work across teams to make the POS more reliable, scalable, performant, and easier to evolve. You’ll personally contribute to the most important technical problems while raising the quality of engineering across Retail through clear technical leadership, strong judgment, and practical mentorship.

You’ll help us build software that works in the real world: across devices, hardware, networks, payments, inventory, and the many edge cases that make retail challenging. You’ll bring a systems perspective to complex problems while staying close enough to the work to understand the details and help teams deliver.

What you’ll be responsible for

Setting and communicating the architectural direction for key areas of Retail Point of Sale.
Ensuring that systems supporting new POS capabilities are well-designed, secure, scalable, observable, and resilient.
Helping teams design reliable experiences across checkout, hardware, network connectivity, payments, sales, inventory, and order workflows.
Leading architectural deep-dives and identifying opportunities to simplify systems, reduce duplication, improve performance, and lower operational risk.
Driving improvements in reliability, availability, latency, and recovery - especially in the moments that matter most to merchants and their customers.
Identifying recurring sources of incidents, customer pain, and non-project overhead, then creating practical plans to address them.
Establishing and evolving engineering practices across design, testing, deployment, observability, incident management, and technical decision-making.
Partnering with Product, Design, Support, and other engineering leaders to turn ambiguous business and customer problems into sound technical direction.
Mentoring senior engineers and technical leaders, helping them grow their scope and make better decisions independently.
Creating alignment across teams without relying on formal authority, and making thoughtful trade-offs between immediate delivery and long-term platform health.
Contributing to the wider Retail Engineering organization wherever your experience can create leverage.

What you’ll bring to the team

Significant experience designing and building business-critical software systems in production.
A track record of technical leadership across multiple teams or a broad product area.
Experience shaping architecture across a large, evolving system with meaningful scale and operational complexity.
Experience building and operating cloud-based systems with strong expectations for reliability, security, and performance.
A history of delivering important outcomes under challenging timelines and incomplete information.
Strong systems-thinking skills, with the ability to move between product intent, architecture, implementation details, and operational reality.
Experience working across more than one technology stack or technical layer. Our environment includes backend services, web and mobile clients, data stores, APIs, event-driven systems, and infrastructure.
Outstanding written and verbal communication skills, with the ability to make complex ideas clear and decisions concise.
The judgment to moderate technical conversations, navigate disagreement, and move groups toward decisions.
A hands-on approach. You don’t need to write every line of code, but you should be comfortable going deep, prototyping, reviewing designs, and contributing directly when it matters.

Even better if you have, but it’s not required

Experience building point-of-sale, commerce, ecommerce, payments, inventory, or other transaction-heavy systems.
Deep experience with distributed systems, offline-capable software, multi-region systems, or high-availability platforms.
Experience working with hardware integrations, payment terminals, peripherals, or environments with unreliable network connectivity.
Strong understanding of domain-driven design, event-driven architecture, data consistency, and migration strategies.
Experience improving a large or legacy system through incremental modernization rather than a risky rewrite.
Experience leading technical work across web, backend, mobile, and platform teams.
Experience with people management or formal technical leadership responsibilities.

Who you are

You care deeply about the customer and understand that technical decisions should make merchants’ work simpler and more dependable.
You are energized by complex systems and can make them easier for others to understand and improve.
You combine high standards with pragmatism. You know when to invest in the foundation and when to make a focused trade-off to keep moving.
You lead through influence, clarity, and trust rather than title.
You are comfortable being accountable for outcomes that extend beyond your immediate team.
You seek out difficult problems, step into ambiguity, and create momentum.
You are a generous technical partner who makes the people around you stronger.
You communicate directly and respectfully, especially when the stakes are high or opinions differ.
You stay curious, learn from what happens in production, and continuously improve your own judgment.
As a global company with employees and clients outside of Quebec, fluency in English as a working language is required for this position.

Fuel your growth. Find your people.

At Lightspeed, your growth is our priority. We invest in you with continuous learning opportunities, global mobility and benefits designed to support you - all within a driven, diverse and inclusive team that’s passionate about empowering our communities

Please note that we ask applicants to disclose any criminal convictions, and we conduct criminal record checks as part of our hiring process for this role.

To all recruitment agencies: Lightspeed does not accept unsolicited agency resumes. If we have not directly engaged your company in writing to supply candidates for a specific vacancy, Lightspeed will not be responsible for any fees related to unsolicited resumes.

Lightspeed is a proud equal opportunity employer and we are committed to creating an inclusive and barrier-free workplace. Lightspeed welcomes and encourages applications from people with disabilities. Accommodations are available on request for candidates taking part in all aspects of the selection process.

Where to from here?

Obviously, this has to be mutually beneficial: we want you to step into a role you love, and we want to offer you a place you’re proud to come to every day. For a glimpse into our world check out our career page here.

Lightspeed is building communities through commerce, and we need people from all backgrounds and lived experiences to do that. We were founded in 2005, in Montreal’s gay village and our original members were all part of the LGBTQ+ community. The ethos of our business has been about inclusion from the very beginning, and we strive to provide a workplace where everyone belongs.

Who we are:

Powering the businesses that are the backbone of the global economy, Lightspeed's one-stop commerce platform helps merchants innovate to simplify, scale, and provide exceptional customer experiences. Our cloud commerce solution transforms and unifies online and physical operations, multichannel sales, expansion to new locations, global payments, financial solutions, and connection to supplier networks.

Founded in Montréal, Canada in 2005, Lightspeed is dual-listed on the New York Stock Exchange (NYSE: LSPD) and Toronto Stock Exchange (TSX: LSPD). With teams across North America, Europe, and Asia Pacific, the company serves retail, hospitality, and golf businesses in over 100 countries.

Lightspeed handles your information in accordance with our Applicant Privacy Statement.

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More about this job

Responsibilities

You will set the architectural direction for the Retail Point of Sale system and lead technical initiatives to improve reliability, scalability, and performance. You will also mentor senior engineers and partner with cross-functional teams to solve complex business and technical challenges.

Requirements

The role requires significant experience in designing and building business-critical software systems at scale with a strong background in technical leadership. You must possess excellent systems-thinking skills and the ability to navigate complex architectural trade-offs across diverse technology stacks.

Skills

Software architecture
Systems thinking
Technical leadership
Mentorship
Cloud-based systems
Distributed systems
Reliability engineering
Scalability
Observability
Incident management
Domain-driven design
Event-driven architecture
API design
Performance optimization
Hardware integration
Communication

Benefits

Global mobility
Inclusive workplace

Remote locations

Canada

Remote locations (standardized)

Canada

Visa sponsorship

Not detected in the job text

Keywords

Software architecture
Point of Sale
Retail
Cloud computing
Distributed systems
Scalability
Reliability
Observability
API
Event-driven architecture
Domain-driven design
Mentorship
Technical leadership
Hardware integration
Payments
Inventory management
Incident management
Performance engineering
Modernization
Systems thinking

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