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Lead Full Stack Engineer

Toronto💼 Full-time🗓 2026-06-10 → 2026-07-30

Core

Design and build scalable advertising solutions, APIs, and services for eBay's global ad-tech platform, integrating AI/ML capabilities to serve millions of buyers and sellers.

Role type

Lead Full Stack Engineer (Ad-Tech)

Builds

Scalable advertising features, user experiences, backend services, and data platforms for eBay's ad ecosystem.

Domain

E-commerce / Ad-Tech / Distributed Systems

Deliverable

production ML models | product features | infrastructure

Required skills

React, Node.js, Java (17+), Spring Boot, Kafka, RabbitMQ, relational and NoSQL databases, distributed system design, CI/CD pipelines, system architecture, data structures and algorithms

Preferred skills

AI-powered development tools, AI-driven automation workflows, mentoring, open-source collaboration

Technologies

React, Node.js, Java, Scala, Kafka, RabbitMQ, Spring Boot

Responsibilities

Design and build innovative advertising and commerce features; Develop scalable, highly available applications and APIs; Own end-to-end delivery of complex features from design to production; Drive technical decisions and system design; Leverage AI-powered development tools to improve productivity; Partner with ML teams to develop intelligent advertising capabilities; Mentor team members and shape engineering best practices.

Seniority

Senior, hands-on IC with leadership responsibilities

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