Client Intelligence Startup: Fullstack Software Engineer (Ruby on Rails)

TLDR

Join a small, fast-moving team at a pre-seed AI SaaS startup, contributing to both frontend and backend development and influencing the product's evolution from day one.

About the Company: Company Size: <10  Industry: AI SaaS, Fintech  Stage: Pre-Seed  Funding: ~$3M raised from leading early-stage investors Tech Stack: Ruby on Rails, React, TypeScript, GraphQL, GCO, and others  Location: Hybrid – Toronto We’re working with a pre-seed, Toronto-based AI SaaS company backed by top early-stage investors (they’ve raised ~$3M to date). The founding team are repeat operators with deep product and startup experience, and they’re building a platform that turns conversations, emails, and notes into structured workflows — helping advisors eliminate admin and deliver personalization at scale. The product is live with early traction, and they’re now hiring a Fullstack Software Engineer to join their small, fast-moving team. About the Role – Fullstack Software Engineer (50/50 split) This is a true fullstack role: you’ll work across both the frontend and backend, owning feature development end-to-end. You’ll collaborate closely with product and design to build responsive, intuitive interfaces — and partner with fellow engineers to scale the backend that powers their AI-native workflows.You’ll have a major voice in how the platform evolves, with the opportunity to help shape the codebase, product experience, and engineering culture from the ground up. What You’ll Tackle:
  • Build core product features across both the backend and frontend
  • Work with React, TypeScript, and GraphQL to develop clean, performant UIs
  • Contribute to backend infrastructure in Ruby on Rails, powering LLM workflows
  • Integrate with tools like Zoom, Gmail, and Salesforce
  • Collaborate with a tight-knit team on fast-paced shipping and iteration
  • Help define internal standards and influence technical direction
  • What You'll Bring:
  • 4–6 years of experience building fullstack web apps
  • Strong experience with React, TypeScript, and GraphQL
  • Working knowledge of Rails (or interest in getting deep)
  • Appreciation for clean UI, strong UX instincts, and component architecture
  • Interest in building AI-native products and shipping early-stage software
  • Someone collaborative, curious, and excited to move fast in a high-trust environment
  • Nice to Have: GCP experience, LLM integration work, or prior SaaS product exposure
  • Why You’ll Want to Join:
  • Founding team with deep product and startup experience
  • High ownership: shape both product and codebase from day one
  • Real-world AI use case, already gaining market traction
  • Backed by respected early-stage investors
  • Competitive compensation + equity

  • Salary
    CAD $150,000 – CAD $200,000 per year
    Ace your job interview

    Understand the required skills and qualifications, anticipate the questions you may be asked, and study well-prepared answers using our sample responses.

    Full-stack Software Engineer Q&A's
    Report this job

    This job is no longer available