Senior Software Engineer (React)

Location: Remote within Canada; candidates must reside in Ontario and be legally authorized to work in Canada. Eastern Time.

Salary: CA$160K–CA$210K plus equity, depending on location, qualifications, work history, and interview performance.

Company

Sardine provides an agentic risk platform for fighting financial crime, combining fraud prevention, AML automation, and risk data across financial services.

What you will do

• Design, build, and own polished, accessible, performant user-facing features in React and TypeScript.
• Set frontend technical direction and quality standards through architecture, code reviews, and mentorship.
• Use AI and agentic development tools such as Claude to improve delivery speed and establish development practices.
• Build and extend Go backend services and APIs supporting frontend experiences.
• Collaborate with business stakeholders from product inception through delivery and contribute to technical roadmaps.
• Create user-facing technical documentation and help shape engineering standards and culture.

Requirements

• 7+ years of software engineering experience with deep frontend specialization.
• Expert-level React and TypeScript skills, with strong attention to UX, performance, and accessibility.
• Fluency with AI and agentic coding tools and experience using them to ship efficiently.
• Experience setting technical standards, mentoring engineers, and driving technical decisions.
• Working proficiency in Go or the ability to become productive with it quickly.
• Proficient English and legal authorization to work in Canada while residing in Ontario are required.

Nice to have

• Experience in fintech, fraud, compliance, risk, or regulated systems.
• Exposure to data tooling or pipelines.

Culture & Benefits

• Remote-first work with flexibility within the country of hire and no regular office attendance.
• Flexible paid time off and a year-end break.
• Health, dental, and vision coverage for employees and dependents.
• RRSP matching in Canada, a MacBook Pro, and a home-office setup stipend.
• Monthly meal and social meet-up stipends, plus annual health, wellness, and learning stipends.