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AI Ads Product Builder/FDE

gigiTorontoEngineering
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Salary
$110k to $200k
Job type
Full-time
Experience
Mid
Posted
2 Oct 2026
Status
Open · checked 7d ago

About this role

Based in Toronto, the AI Ads Product Builder/FDE role at gigi combines software engineering, advertising domain knowledge, and client service to build and deploy AI-powered products. This position suits an experienced software engineer with a background in ad tech who enjoys working directly with clients to deliver production-ready solutions.

Role Overview

The AI Ads Product Builder/FDE is a hands-on software engineering position based in Toronto. The professional in this role collaborates directly with agency leaders and ads managers to understand campaign workflows, translate business needs into technical solutions, and build reliable agentic systems for enterprise media buying.

Key Responsibilities

Collaborate directly with agency leaders and ads managers to gather requirements, understand operational challenges, and translate ambiguous needs into practical software solutions.
Own features end-to-end from the data layer through agent logic to the user interface.
Utilize AI coding tools such as Codex, Claude Code, and Cursor as an integral part of the development workflow while remaining accountable for architecture and code quality.
Connect the platform to advertising tools, APIs, and data sources with proper permissions and data mapping.
Design reliable agentic systems including tools, retrieval, memory, evaluations, guardrails, and human approval flows.
Deliver comprehensive client service through discovery, prototyping, implementation, rollout, and in-person travel to client locations as needed.

Requirements

Practical experience in ad tech and advertising covering media planning, campaign management, optimization, measurement, and reporting.
Client service experience with a focus on building relationships, understanding client priorities, and taking responsibility for follow-through.
Strong communication skills to lead discovery conversations and explain technical tradeoffs clearly to nontechnical stakeholders.
Demonstrated track record of building and shipping production software used by real customers.
Strong full-stack software engineering experience in system design, APIs, data models, interfaces, testing, debugging, and production operations.
Familiarity with or strong desire to become highly effective using AI coding tools like Codex, Claude Code, and Cursor.
Flexibility and willingness to travel to client locations for collaboration and rollout support.

Skills and Tools

Python
FastAPI
LangGraph
LangChain
TypeScript
Vue
Nuxt
Java
Spring Boot
PostgreSQL
pgvector
Redis
NATS
AWS
Codex
Claude Code
Cursor

Salary and Benefits

Salary range: $110k to $200k

About the Company

gigi is the agentic operating system of enterprise media buying, having launched its AI media manager for Amazon DSP in summer 2025. The company manages hundreds of millions in advertising spend for major global agencies and is backed by Golden Ventures and Aperiam Ventures, with a founding team boasting a prior $100M+ exit in Amazon Ads and ecommerce.

How to Apply

Interested candidates should apply on the official company careers page.

Skills and tech stack

PythonFastAPILangGraphLangChainTypeScriptVueNuxtJavaSpring BootPostgreSQLpgvectorRedisNATSAWSCodexClaude CodeCursorLLMLLMs

Questions candidates ask

Where is this job located?

This role is based in Toronto, with travel to client locations required as needed for collaboration and implementation.

What is the salary range for this position?

The salary range is between $110k and $200k.

Do I need prior experience as an AI researcher or LLM expert?

No, an AI research background or years of professional LLM experience are not required. Strong software engineering and ad tech experience are the primary focuses.

What tech stack does the engineering team use?

The stack includes Python, FastAPI, LangGraph, LangChain, TypeScript, Vue, Nuxt, Java, Spring Boot, PostgreSQL, pgvector, Redis, NATS, and AWS, alongside AI coding tools like Codex, Claude Code, and Cursor.

Is travel required for this role?

Yes, travel to client locations is required as needed for discovery, working sessions, onboarding, and rollout support.

Ready to apply?

The application is on the official gigi careers page.

Apply on company site