Staff Backend Engineer: Platform Integrations Lead (Hands-on)

eBay; Toronto; On-site; CAD 120,000 - 180,000; Full time

Job summary

eBay is building a new Toronto-based integration team focused on embedding core marketplace capabilities into adjacent platforms. This is a hands-on, technical leadership role for an experienced backend engineer who can define architecture, write production code, and drive execution across multiple stacks and geographies.

You’ll lead architectural direction for key platform integrations, collaborating with teams to deliver scalable services and ensure long-term maintainability.

Qualifications

• Proven experience leading architecture decisions for distributed services.
• Hands-on backend coding in Java with production systems.
• Ability to collaborate across multiple teams and geographies.

Responsibilities

• Define architecture for marketplace integration team.
• Write production code and lead implementation.
• Drive design reviews and PR reviews across workstreams.
• Translate ambiguous business goals into scalable technical solutions.
• Partner with engineering teams to expose services for future integrations.

Skills

Java backend

Architecture leadership

Distributed systems

Communication

Ambiguity handling

Tools

GraphQL

Apollo federation

AWS

Scala

Kotlin

TypeScript

Node.js

Job description

eBay is building a new Toronto-based integration team focused on embedding core marketplace capabilities into adjacent platforms. This is a hands-on, technical leadership role for an experienced backend engineer who can define architecture, write production code, and drive execution across multiple stacks and geographies.

You’ll lead architectural direction for key platform integrations, collaborating with teams to deliver scalable services and ensure long-term maintainability.