Senior Software Engineer

Fincentify

Senior Software Engineer developing and maintaining backend systems for fintech startup. Leading projects and improving services with a focus on scalability and performance.

Posted 7/27/2026full-timeMontreal • 🇨🇦 CanadaSenior💰 CA$150,000 - CA$185,000 per yearWebsite

Tech Stack

Tools & technologies

JavaScriptNode.jsReactReact NativeTypeScript

About the role

Key responsibilities & impact

Own, design, and improve the services and features of our backend systems, with a focus on scalability, maintainability, and performance.
Deliver end-to-end full-stack features: product discovery, scoping, implementation, and deployment.
Make pragmatic decisions in ambiguous situations; unblock yourself and others without waiting for perfect specifications.
Improve existing surfaces: refactor opportunistically and reduce technical debt without slowing down delivery.
Write and test production-quality code to ensure correctness and performance.
Raise the team's bar: share context, bring your domain expertise, and challenge decisions when the trade-offs don't make sense.
Promote and champion "AI-native" development best practices, building patterns and abstractions that enable fast iteration with tools like Claude Code.

Requirements

What you’ll need

Someone with at least 6 years of relevant industry experience; able to deliver strong results amid ambiguity, review and mentor other engineers, and set the standard for quality and output.
A university degree (at minimum a bachelor's) in Computer Science, Engineering, or Mathematics from a reputable university in Canada or the United States.
Strong computer science and engineering fundamentals. A solid command of algorithms, data structures, and systems design.
Expert-level proficiency in TypeScript, Node.js, React.js, and React Native.
Strong communication skills: able to clearly discuss trade-offs with both technical and non-technical audiences.
A demonstrated ability to leverage AI development tools to accelerate delivery while maintaining code quality and architectural integrity.
Excellence in designing clean, testable, and well-documented code that serves as an effective context for AI assistants.

Benefits

Comp & perks

Competitive base salary ($150,000-$185,000)
Individual performance bonus
Profit sharing
Comprehensive health, dental, and vision coverage.
20 days of paid time off per calendar year + unlimited sick days.
$2,500 per year in your Health Spending Account.
$1,000 per year in your Wellness Lifestyle Account.
Annual company retreat.
Paid parental leave.