Senior Full-Stack Developer (Node.js/React/Golang) Ottawa, ON, Canada

📍 Toronto, ca

Lightspeed

Job Description

Overview 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 are looking for a highly experienced

Senior Full Stack Developer

with expertise in

Node.js, React.js, Go/Golang,

and databases like MongoDB and PostgreSQL, to join our B2B Core team and help merchants sell their inventories to retailers worldwide with high flexibility and control over their processes.

As a Senior Full Stack Developer, you will be responsible for developing and maintaining our web applications, ensuring the highest level of performance and user experience. If you are a highly experienced Senior Full Stack Developer with a passion for building high-quality web applications, we want to hear from you!

For this role, you should be located in

Canada

and able to work within EST/EDT hours. We offer a choice of fully remote, partially remote, or fully office-based work environments (in cities with local offices).

What you’ll be doing

Develop and maintain our web applications using

Node.js, React, and Go/Golang

Collaborate with our team of designers, product managers, and engineers to develop new products, features, and improve existing products

Ensure the highest level of performance and user experience for our web applications

Own and be accountable for your work

Write code that is clean, tested, maintainable, and efficient; encourage others to do so via meaningful code reviews

Work with your team and other teams to integrate our web applications with third-party services and APIs

Lead initiatives with your team

Mentor junior developers and contribute to our engineering culture and best practices

What you need to bring

A minimum of

6+ years

of experience as a Full Stack Developer

Strong system design experience building highly scalable systems

Very proficient with

React and Node.js

– Golang experience is also valued

Proficient with document-based and relational databases

Experience with Kubernetes and Docker

Familiarity with cloud services such as GCP, Azure, or AWS

Knowledge of serverless computing

Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent experience)

An extreme ownership mentality

Strong problem-solving skills and attention to detail

Excellent communication and collaboration skills

Experience with agile development methodologies

Strong understanding of software development principles, design patterns, and best practices

Proven track record of delivering high-quality software projects on time

Experience with refactoring and modernization of legacy codebases, breaking monoliths into microservices/microfrontends

We know that people are more than what’s on their CV. If you’re unsure that you have the right profile for the role, please apply and we’ll consider your application.

What’s in it for you

Join a growing team and help us move to the next level

Amazing benefits & perks, including equity for all Lightspeeders

Constant development of both your skill-set and business acumen with limitless growth opportunities

Lots of autonomy, flexible work culture

Innovation time to explore and learn at work

Shaping the company by joining cultural & technical committees

Tons of growth opportunities into technical or people management roles

Opportunity to join a fast-paced, high-growth company

Opportunity to learn, expand your skill set, forge wonderful relationships and make your mark within the diverse and inclusive Lightspeed family, a true Canadian tech success story

… and enjoy a range of benefits that will keep you happy, healthy and (not) hungry.

Lightspeed equity scheme (we are all owners)

Flexible paid time off and remote work policies

Health insurance

Contributions to your pension plan - RRSP

Health and wellness benefit of $500 per year

Paid leave and assistance for new parents

Mental health online platform and counseling & coaching services

Training opportunities to grow your skills and career

Volunteer day

Fully stacked kitchen (hot and cold beverages, meals served)

Happy hours to build your relationships with colleagues after work

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 an equal opportunity employer and we are committed to creating an inclusive and barrier-free workplace. 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 Privacy Statement.

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Ready to Apply?

Don't miss this opportunity! Apply now and join our team.

Job Details

Posted Date: October 4, 2025
Job Type:
Location: Toronto, ca
Company: Lightspeed

Ready to Apply?

Don't miss this opportunity! Apply now and join our team.