AI Ads Product Builder/FDE

Location: Toronto, Canada; in-office work with client travel as needed

Salary: CA$110,000–CA$200,000 per year, depending on experience, plus meaningful equity.

Company

Gigi builds an agentic operating system for enterprise media buying, with an AI media manager for Amazon DSP as its first product.

What you will do

• Work directly with agency leaders and ads managers to understand campaign workflows, reporting needs, and operational challenges.
• Own features end to end across data layers, agent logic, backend services, integrations, and customer-facing interfaces.
• Build advertising-tool integrations, APIs, data mappings, permissions, and reliable failure-handling workflows.
• Design dependable agentic systems with tools, retrieval, memory, evaluations, guardrails, and human approval flows.
• Deliver discovery, prototyping, implementation, rollout, and adoption support in collaboration with customers and internal teams.
• Travel to client locations for discovery, working sessions, onboarding, and rollout support.

Requirements

• Practical experience in ad tech and advertising, including media planning, campaign management, optimization, measurement, and reporting.
• Production software engineering experience with system design, APIs, data models, interfaces, testing, debugging, and operations.
• Strong full-stack development experience and comfort working across frontend, backend, data, and infrastructure.
• Client service and communication skills, including explaining technical tradeoffs to nontechnical stakeholders.
• Experience using or willingness to become highly effective with AI coding tools such as Codex, Claude Code, or Cursor.
• Willingness to work in Toronto and travel to client locations as needed.

Nice to have

• Experience building software for agencies or advertisers.
• Integrations with external APIs, enterprise tools, or customer data systems.
• Production LLM experience with evaluations, guardrails, tool use, retrieval, or agent orchestration.
• Deep experience with Amazon DSP, retail media, or programmatic advertising.
• Experience with high-volume real-time data pipelines or production systems where permissions, auditability, and customer trust were important.

Culture & Benefits

• Early-employee role with meaningful influence over the product, engineering culture, and company.
• In-office collaboration in downtown Toronto, with engineers able to work from their preferred location on Wednesdays.
• Meaningful equity with potential for early and frequent equity top-ups.
• Catered lunch, snacks, top-of-the-line Apple equipment, and comprehensive health and dental coverage.
• High-intensity environment with broad ownership, ambiguity, and high standards.