Senior Full-Stack Engineer

The role

You will develop customer experiences and platform capabilities for the Collect marketplace, including Vault, Buy Now, and auctions. You will own complex features across the technology stack, from web experiences to scalable services and data models.

What you will do

• Design, build, test, deploy, and operate full-stack features supporting Vault, Buy Now, auctions, and marketplace tooling.
• Develop intuitive customer experiences for managing vaulted assets, creating listings, placing bids, purchasing collectibles, and tracking transactions.
• Build scalable backend services and APIs that support marketplace workflows, inventory, listings, bidding, and order lifecycles.
• Strengthen the reliability and integrity of time-sensitive and transaction-heavy experiences.
• Translate complex marketplace and operational requirements into maintainable technical solutions.
• Partner with product managers and designers to shape requirements and deliver customer experiences.
• Collaborate with platform, infrastructure, data, security, and other engineering teams.
• Improve application performance, observability, testing, deployment practices, and production readiness.
• Diagnose complex production issues and contribute to incident response.
• Provide code reviews, technical guidance, and mentorship to other engineers.

Required qualifications

• Five or more years of professional software engineering experience, including meaningful ownership of full-stack applications.
• Strong experience building modern web applications using technologies such as React, TypeScript, or comparable frameworks and languages.
• Experience developing backend services and APIs using languages and frameworks such as Node.js, Java, Kotlin, Go, Python, or similar technologies.
• Strong understanding of data modeling and experience working with relational or non-relational databases.
• Experience designing and operating scalable, reliable, customer-facing systems in a production environment.
• Understanding of distributed systems, asynchronous processing, caching, and event-driven architecture.
• Experience with automated testing, continuous integration and delivery, observability, and cloud-based deployment.
• Ability to break down ambiguous problems, make sound technical decisions, and deliver solutions across multiple systems.
• Strong product judgment and an appreciation for how technical decisions affect customers and business operations.
• Clear communication skills and the ability to collaborate effectively across engineering, product, design, and operational teams.

Nice to have

• Experience building e-commerce, marketplace, fintech, auction, inventory, or other transaction-oriented products.
• Experience developing real-time or time-sensitive functionality, such as bidding, pricing, notifications, or live-event experiences.
• Familiarity with payments, order management, fulfillment, identity, fraud prevention, or marketplace trust and safety.
• Experience supporting internal operational tools alongside external customer experiences.
• Interest in trading cards, collectibles, marketplaces, or collector communities.

About the company

Fanatics is building a leading global digital sports platform. Fanatics Collectibles is a new company operating at the intersection of collectibles, culture, and technology.