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Added 6 hours ago
HT
PD Software for Service
Husky Technologies
Bolton, ON
- Full-time
The Service team is currently seeking a Software engineer/designer to specialize in resolving service issues with a focus on Injection Molding Machine controls, including servo drive and…
Added 6 hours ago
G
Software Engineer, Full Stack
Gigi
Toronto, ON
- Full-time
We're hiring an AI Builder - a full stack software engineer - to join our engineering team in Toronto and own end-to-end feature development for Gigi, our AI agent.
Added 6 hours ago
HT
Product Development Engineer
Husky Technologies
Bolton, ON
- Full-time
Our Development Engineering team is looking to hire an experienced Product Development Engineer. The successful candidate will lead the technical development of packaging products working…
Added 6 hours ago
BC
Process Engineer
Bantrel Co.
Calgary, AB
- Full-time
We are currently seeking a qualified Process Engineer to join our Energy team based in Calgary, AB. The Process Engineer will support various projects by applying process engineering…
Added 6 hours ago
SS
Software engineer
SMC Strategic Solutions Inc
Mississauga, ON
- From $57 CAD / hour
- Full-time
- Hybrid
Research technical information to design, develop and test computer-based systems
Added 6 hours ago
BC
Process Engineer
Bantrel Co.
Calgary, AB
- Full-time
We are currently seeking a qualified Process Engineer to join our Energy team based in Calgary, AB. The Process Engineer will support various projects by applying process engineering…
Added 7 hours ago
RP
Automation Engineer
R&D Partners
ON · Ontario, Canada
- $55 to $65 USD / hour
- Full-time
R&D Partners is seeking an Automation Engineer to support the development, testing, and validation of automated systems and equipment. This role focuses on ensuring the functionality,…
Added 7 hours ago
PC
Senior Safety Instrumented System Engineer II
Parkland Corporation
Burnaby, BC
- Full-time
The Safety Instrumented System (SIS) Engineer is the designated owner of the refinery's Safety Instrumented Systems (SIS) program and serves as the refinery's technical authority for Safety…
Added 7 hours ago
WI
Senior Metallurgist
WSP in Canada
Toronto, ON
- Full-time
Build the Future with Us – This is your chance to be part of a team that’s shaping the world’s infrastructure, energy systems, and communities. In this role, you’ll apply your metallurgy…
Added 7 hours ago
L
Automation and Test Engineer - Photonics
Lumentum
Ottawa, ON · Canada - Ottawa (Bill Leathem)
- Full-time
We’re looking for an engineer to build the automation and software our photonics manufacturing runs on: process automation, test automation, machine vision, data acquisition and analytics,…
Added 7 hours ago
Q-
Montréal [Hybrid] - KDB Developer
QUANTEAM - North America (RAINBOW PARTNERS Group)
Montreal, QC · Greater Montreal Metropolitan Area
- Full-time
We are looking for a KDB Engineer to join one of our clients, a major corporate investment bank based in Montreal.
Added 7 hours ago
P
System Configuration Specialist / Spécialiste en configuration de systèmes (CS003)
Potenco
Montreal, QC · Greater Montreal Metropolitan Area
- Full-time
Collaborate with the Systems Engineer in preparing technical drawings.
Added 7 hours ago
KG
IVR QA Automation Engineer (Bilingual French)
K&K Global Talent Solutions INC.
ON · Ontario, Canada
- Full-time
QA Frameworks: Demonstrated mastery of structured QA methodologies, test case modeling, and enterprise defect tracking systems (e.g., Jira).
Added 7 hours ago
UO
Mechanical Engineer
University of Alaska Fairbanks Petroleum Engineering
Engineer, BC
- Full-time
The Space Dynamics Laboratory (SDL) is seeking a highly skilled Mechanical Engineer to perform detailed design and analysis of space hardware and subsystems. The successful candidate will…
Added 8 hours ago
IG
Aircraft Maintenance Engineer
Insight Global
Moose Jaw, SK
- $40.96 to $45.06 CAD / hour
- Full-time
As an Aircraft Maintenance Engineer, you will be responsible for the inspection, servicing, maintenance, repair, and testing of aircraft and associated systems.
Added 8 hours ago
D
Lead Python + AI
Digitive
Canada
- Contract
We are looking for a Lead Python AI Engineer to build robust, AI-powered API services and agentic workflows. In this role, you will bridge the gap between traditional backend systems and…
Added 8 hours ago
IG
Data Acquisition Engineer
Infotree Global Solutions
Windsor, ON
- Contract
The Data Acquisition Engineer will be responsible for setting up and conducting data acquisition using various data acquisition systems. This involves coordinating test specimen build,…
Added 8 hours ago
VC
Senior Software Engineer (Golang, Microservices, DevOps)
VTRAC Consulting Corporation (WBE)
Toronto, ON · Greater Toronto Area, Canada
- $120,000 to $140,000 CAD / year
- Full-time
There is an exciting opportunity for a Senior Software Engineer to join a fast-growing technology company redefining enterprise energy management through intelligent, data-driven solutions.…
Added 8 hours ago
GS
DevOps Engineer
Gala Solutions
Montreal, QC
- Contract
Job Title: DevOps Engineer – Data Protection Services
Added 8 hours ago
C
Routing/IP Software Engineer - New Grad
Ciena
Ottawa, ON
- Full-time
Participate in the full software development lifecycle (develop, test, document, debug and maintain the applications).
Added 8 hours ago
PR
Senior Safety Instrumented System Engineer II
Parkland Refining BC Ltd.
Burnaby, BC
- Full-time
The Safety Instrumented System (SIS) Engineer is the designated owner of the refinery's Safety Instrumented Systems (SIS) program and serves as the refinery's technical authority for Safety…
Added 9 hours ago
Senior Quality Assurance Engineer
Questrade Financial Group
Toronto, ON
The Sr QA Engineer is a high-impact individual contributor responsible for the end-to-end quality of Questbank's critical payment lifecycles, specifically Electronic Funds Transfer (EFT)…
Added 9 hours ago
A
Validation Engineer (ITV Specialist - Jr)
Akkodis
Toronto, ON
- Contract
A leading organization in the transportation technology sector is seeking a Systems Test & Commissioning Engineer to support the verification, validation, testing, and commissioning of…
Added 9 hours ago
HT
Senior Quality Assurance Engineer
High Tech Genesis
Toronto, ON
- Contract
We are looking for an experienced QA Engineer with strong hands-on experience in AML (Anti-Money Laundering) testing and a background in Payments, Banking, or FinTech. The ideal candidate…
Added 9 hours ago
Quality Assurance Automation Engineer
T2 Systems
Burnaby, BC
The QA Automation Engineer ensures the quality and reliability of software products. You will develop and maintain automated test scripts, performance tests, and other test types to…

Gigi

Software Engineer, Full Stack

Toronto, ON, Canada

Base salary: $150k to $200k depending on experience and talent level · Full-time

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Job details

Pay: Base salary: $150k to $200k depending on experience and talent level
Job type: Full-time
Apply by: Apr 26, 2027
Posting language: English
Posted: Oct 28, 2026

Original job description

Gigi is the agentic operating system of enterprise media buying. Our first product is the AI media manager for Amazon DSP. Since launching it in summer 2025, we've grown to manage hundreds of millions in advertising spend on behalf of the largest agencies in the world.

We're backed by top venture investors Golden Ventures and Aperiam Ventures. Our founding team has spent 15+ years building in Amazon Ads and ecommerce, including a prior $100M+ exit.

We doubled revenue in the past two months. We expect to double again by early Q4.

We're hiring an AI Builder - a full stack software engineer - to join our engineering team in Toronto and own end-to-end feature development for Gigi, our AI agent.

This is still fundamentally a software engineering role. Much of the work will feel familiar: designing APIs, building interfaces, modelling data, integrating services, writing tests, debugging production issues, and making architectural decisions. The main difference is the product we're building: agentic software where LLMs reason, use tools, and take actions on behalf of customers.

You do not need to be an AI researcher or have years of professional LLM experience. Strong full stack engineers who are excited to learn how agentic systems work should apply. You'll use tools such as Codex, Claude Code, and Cursor as a core part of how you work, while building across agent logic, backend services, data, and the customer-facing product.

This is the 12th role at Gigi. As an early employee, you will have a meaningful role in shaping our product, engineering culture, and company.

What You'll Do

Ship end to end. You'll own features from the data layer through the agent logic to the interface a media buyer actually touches. Our stack includes Python, FastAPI, LangGraph and LangChain; TypeScript, Vue and Nuxt; Java and Spring Boot; PostgreSQL, pgvector, Redis and NATS; and AWS.
Build with AI as a core part of your development workflow. Use Codex, Claude Code, Cursor, and other coding agents to help plan, implement, test, debug, and review software. You are still responsible for the architecture, quality, and correctness of what gets shipped.
Build the agent's judgment, not just its plumbing. Decide what Gigi should do autonomously and what it must escalate to a human, then score actions on risk and confidence so recommendations read differently when the data is thin.
Draw the line between probabilistic and deterministic work. LLMs for reasoning, structured software for execution. Knowing where that boundary sits on any given feature is a daily call, not a settled architecture.
Build reliable agentic systems. You'll learn to design tools, retrieval, memory, evaluations, guardrails, and human approval flows that make Gigi dependable enough to take action inside real advertising accounts. Prior experience with all of these is not expected.
Work directly with customers. You'll sit in on calls, read transcripts, and take feedback straight from the media buyers using the product. You'll turn ambiguous customer problems into shipped product without waiting for a perfect spec.

What Success Looks Like

First 30 days. Your code is in production. You understand what a media buyer's day actually involves and why the product is shaped the way it is.
Six months. You own a surface area of the product outright. When something breaks in it, or a customer asks for something new, you're the person who decides what happens.
Twelve months. You've shipped something we could not have built without you, and you've thrown out at least one thing you built because the abstraction was wrong.

What You'll Bring

A track record of building and shipping production software used by real customers. We care more about what you have built and owned than an exact number of years.
Strong full stack software engineering experience. The fundamentals you already have - system design, APIs, data models, interfaces, testing, debugging, and operating production software - transfer directly to this role.
Comfort across the stack. Real depth somewhere, no allergy to the parts you're weaker in.
Experience using, or a strong desire to become highly effective with, AI coding tools such as Codex, Claude Code, Cursor, or similar tools. You do not need to be an expert on day one, but you should be excited to use them every day - and strong enough technically to review their work, reject weak abstractions, catch missing edge cases, and remain accountable for what ships.
Curiosity about how LLMs change software products and the way software gets built. You should be excited to develop good judgment around where AI belongs - and where conventional software is the better answer.
Judgment over specification. You can make a reasoned call, ship it, and iterate fast when it's wrong.
Speed and ownership. LLMs changed what “fast” means for a small team. You should be comfortable using AI coding agents to move quickly while maintaining a high bar for architecture, correctness, and maintainability.

What You Don't Need

You do not need an AI research background or experience training foundation models. We build products around existing models, combining them with tools, data, business logic, interfaces, and production infrastructure.
You do not need prior experience with every agent framework or concept we use. We expect strong engineers to learn LangGraph, agent orchestration, evaluations, retrieval, and tool use on the job.
You do not need prior advertising or Amazon DSP experience. Our team will help you learn the domain.

Bonus Points If

You've built with LLMs in production: evals, guardrails, tool use, retrieval, agent orchestration, cost and latency work.
You've worked in advertising or ecommerce.
You've built real-time data pipelines at meaningful volume, or been early enough at a startup to know what the first 20 people actually do.
You've operated production systems where correctness, permissions, auditability, or customer trust mattered.

The Hard Parts

We'd rather you know this before you apply.

We work hard. We are trying to build a generational company, and early employees should expect intensity, ambiguity, and high standards.
Cash compensation is competitive for our stage, but we will not win every late-stage salary comparison. The upside is meaningful ownership and equity in a company growing quickly.
We throw out working code when the underlying abstraction is wrong. Some of what you build will not survive, and you'll be the one who calls it.
Nobody is siloed. You'll write frontend, debug backend, think through product, join customer calls, and solve whatever problem is blocking the customer.

Compensation and Equity

Base salary: $150k to $200k depending on experience and talent level
Meaningful equity. We want to be as generous with equity as possible, and top performers can expect equity top-ups early and often.

Life at Gigi

In-office culture. We work together downtown Toronto, but makers (i.e. engineers) can choose to work where they are most productive on Wednesdays. Our office is right across from Union Station
Catered lunch every day from Toronto's best spots. Current rotation: Impact Kitchen, iQ Food Co., ChopHop, and Cumbrae's.
Real snacks: Greek yogurt, Mateína yerba mate, Barebells protein bars, Midday Squares. Tell us what you want and we'll add it.
Top-of-the-line Apple equipment.
Comprehensive health and dental coverage.

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More about this job

Responsibilities

Own end-to-end product features across data layers, agent logic, backend services, and customer-facing interfaces, while using AI coding tools to plan, build, test, and review software. Design reliable agentic systems with appropriate autonomy, risk and confidence assessment, human approval flows, and customer feedback incorporated into product decisions.

Requirements

Candidates should have a track record of building and shipping production software, strong full-stack engineering fundamentals, and depth in at least one area of the stack. They should be comfortable learning and using AI coding tools, exercise sound technical judgment, and be able to move quickly while maintaining software quality; prior AI research, advertising, or Amazon DSP experience is not required.

Skills

Full-Stack Software Engineering
Python
FastAPI
LangGraph
LangChain
TypeScript
Vue
Nuxt
Java
Spring Boot
PostgreSQL
pgvector
Redis
NATS
AWS
LLM Agent Development

Benefits

Equity
Catered Lunch
Snacks
Apple Equipment
Health Insurance
Dental Coverage

Visa sponsorship

Not detected in the job text

Keywords

Full-Stack Engineering
Agentic Software
Large Language Models
AI Coding Agents
Codex
Claude Code
Cursor
Python
FastAPI
LangGraph
LangChain
TypeScript
Vue
Nuxt
Java
Spring Boot
PostgreSQL
pgvector
Redis
NATS
AWS
API Design
System Design
Data Modeling
Retrieval
Agent Orchestration
Evaluations
Guardrails
Human Approval Flows
Amazon DSP

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