Principal Software Developer

As a hands‑on Principal Software Developer
, you’ll guide the design and architecture of the critical system components of the flagship Lightspeed Retail product, used by thousands of merchants worldwide. You will personally contribute to the key parts of the systems to deliver innovative solutions that meet customer needs. You will uplevel engineering craft across the organization by providing technical guidance, promoting best practices, mentoring fellow engineers, and empowering the teams to build toward a sustainable architecture.

For this role, you should be located in Canada/USA, and able to work within EST/EDT hours. We offer a choice of fully remote, partially remote, or fully office‑based work environments.

• Ensuring that systems built to support new initiatives are well designed and scalable.
• Analyzing existing systems and infrastructure landscape, identifying opportunities to improve architecture, reduce duplication, make systems more performant and robust.
• Identifying key recurring patterns leading to incidents and non-project overhead, and coming up with a plan to address those.
• Driving improvements in our system reliability and performance.
• Improving development practices, from design reviews to testing and deployment, and incident management.
• Conducting architectural deep‑dives and mentoring key members across all services teams.
• As a senior member of the engineering team, playing a key role in developing a high‑performance culture in the Retail organization.
• Contributing as part of the wider team to achieve organizational objectives even if this means doing things that aren’t strictly within the scope of your role.

• 15+ years of professional experience in software development.
• 5+ years of experience as a technical leader for multiple teams.
• 2+ years of experience managing architecture across multiple teams with more than 35+ engineers.
• History of developing business‑critical systems at scale, to run on the cloud.
• History of delivering key outcomes for the business, under challenging timelines.
• Experience in more than one technology stack such as Go, PHP, Java, RoR, Python, etc.
• Outstanding written and verbal communication skills, with the ability to convey ideas concisely.
• Ability to moderate technical conversations, handle diverse opinions, and make quick decisions.

• Expertise in distributed systems and building multi‑region systems for the cloud.
• Deep expertise in domain‑driven software development.
• Ability to lead and guide a team of engineers while contributing alongside them.
• Retail or eCommerce domain experience.
• Experience with people management responsibilities.

• You have a passion for software development and a customer‑focused mindset.
• You are a team player who can work with, and help grow, other developers.
• You understand the need for constant improvement, self‑growth, and accountability.
• You step up to lead features, solve problems, and research new technologies.
• You set ambitious goals, and act with a sense of urgency and focus.
• As a global company with employees and clients outside of Quebec, fluency in English as a working language is required.

• Join a growing team and help us move to the next level.
• Amazing benefits & perks, including equity for all Light speeders.
• Constant development of both your skill‑set and business acumen with limitless growth opportunities.
• Lots of autonomy and 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.

• 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…