Lead Frontend Engineer - MTS 1

eBay•Toronto, ON

36d

About The Position

At eBay, we're more than a global ecommerce leader — we’re changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. We’re committed to pushing boundaries and leaving our mark as we reinvent the future of ecommerce for enthusiasts. Our customers are our compass, authenticity thrives, bold ideas are welcome, and everyone can bring their unique selves to work — every day. We're in this together, sustaining the future of our customers, our company, and our planet. Join a team of passionate thinkers, innovators, and dreamers — and help us connect people and build communities to create economic opportunity for all. About the team: Authenticity Guarantee is an important initiative in eBay where a select category of items are authenticated by professional authenticators to increase buyer confidence, satisfaction & trust. Authentication Technology team is responsible for building software solutions for orchestrating the process of authentication. This involves building software solutions for receiving, shipping, warehouse operations, storage, imaging, mobile applications on android platform, integration with custom hardware & RFID readers. About the role: We’re looking for a Lead Front-End Software Engineer to drive the architecture, quality, and delivery of modern web applications across multiple product teams. You will combine hands-on technical leadership with strategic influence — setting front-end standards, mentoring engineers, and ensuring scalable, high-performance user experiences. This is a high-impact role for someone who thrives in distributed teams, cares deeply about engineering excellence, and can balance speed with quality in an enterprise product environment.

Requirements

8+ years of experience building large-scale web applications
2+ years of technical leadership experience across multiple teams
Expert proficiency in JavaScript and TypeScript
Deep experience with modern frameworks (React required; Vite, Tailwind CSS preferred)
Experience integrating with REST and/or GraphQL APIs
Experience building and deploying applications on Google Cloud Platform (GCP)
Familiarity with services such as Cloud Run, Cloud SQL, Cloud Storage, Firebase, or Cloud CDN, Networking, Load balancer
Understanding of cloud-native architecture and security best practices
Proven experience designing scalable front-end architectures
Strong knowledge of state management, component architecture, and design systems
Experience building and maintaining comprehensive test suites (unit, integration, E2E) using Jest, Vitest, Cypress preferred
Hands-on experience with CI/CD pipelines
Strong understanding of web performance optimization

Nice To Haves

Experience developing mobile applications on Android platform
Experience developing backend APIs using REST/GraphQL in Java/Ruby or similar object oriented languages
Google Cloud Developer or Architect certification
Familiarity with observability and monitoring tools
Experience with micro-frontend architectures
Experience contributing to open-source projects
Experience building AI/ML applications, working with LLMs and integrating ML systems
Interest or experience training or finetuning ML models is added advantage

Responsibilities

Technical Strategy & Architecture
Define and evolve front-end architecture across multiple product areas
Drive long-term technical vision for scalability, performance, and maintainability
Establish standards for design systems, state management, testing, and CI/CD
Lead architectural reviews and influence cross-org technical decisions
Execution & Delivery
Work closely with UX/UI designers to translate designs into high-quality implementations
Lead complex, multi-quarter initiatives from design to production
Decompose ambiguous product requirements into scalable technical solutions
Ensure operational excellence (performance, accessibility, reliability, observability)
Improve engineering velocity through tooling, automation, and best practices
Engineering Excellence
Raise the quality bar through rigorous code reviews and technical mentorship
Champion modern web standards and best practices
Drive measurable improvements in page load performance, error rates, and UX quality
Establish metrics and SLAs for front-end performance and reliability
Leadership & Influence
Mentor junior engineers & help them grow in their careers
Influence product and design through strong technical judgment
Contribute to hiring and talent development
Lead through influence across distributed teams