Senior Fullstack Engineer, Insights (Ruby on Rails)

TL;DR

Senior Fullstack Engineer, Insights (Ruby on Rails/Go): Building platform features for campaign data analysis and AI-powered optimization loops with an accent on scalable distributed systems and high-performance web applications. Focus on optimizing system-wide bottlenecks, designing well-documented web architecture, and integrating agentic AI loops.

Location: Remote (Must be based in Canada)

Company

hirify.global is a leading technology company providing an AI-powered Marketing Platform for programmatic advertising to help marketers reach and convert audiences with precision.

What you will do

• Design, improve, and debug complex, scalable distributed systems.
• Identify and optimize system-wide performance bottlenecks.
• Write extensible, scalable, and test-driven code, owning projects from start to finish.
• Collaborate on the design of web architecture, including APIs and backend systems.
• Contribute to code reviews, technical specifications, and architectural decision-making.

Requirements

• 5+ years of experience building highly performant web applications with outstanding UX.
• Strong experience with Ruby on Rails and Go.
• Proficiency with relational databases and key-value stores.
• Experience analyzing and optimizing web application page load performance across the entire stack.
• Basic knowledge of AWS or equivalent cloud platforms (GCP, Azure).
• Must be located in Canada.

Nice to have

• Experience integrating and orchestrating APIs with AI and agentic loops.
• Experience building performant data visualizations and graphs.
• Experience leading large-scale modernization of legacy systems.

Culture & Benefits

• Competitive salary and comprehensive health benefits from day one.
• Retirement, 401K, or Pension savings plans.
• Generous paid time off packages, including birthdays off.
• Work-from-home reimbursements and optional global WeWork membership.
• Robust training, onboarding, and support for personal development (conferences, courses, books).
• Inclusive and supportive team culture with a focus on diversity.