Senior Software Engineer - Live Commerce Platform

Fanatics Collectibles; New York (NY); On-site; USD 150,000 - 210,000; Full time

Job summary

Fanatics Collectibles is seeking a Senior Software Engineer to design, build, and operate Fanatics Live web and software experiences. You will own significant features, partner with Product/Design, and work on fast, reliable systems for high-traffic events.

You’ll contribute to architecture, performance, observability, and production reliability while mentoring peers and delivering customer-centric solutions.

Qualifications

• 5+ years of professional software engineering experience building and operating production applications.
• Strong proficiency in one or more modern programming languages and frameworks used to build web applications and services.
• Significant experience with modern web application architecture, APIs, distributed systems, cloud services, or full-stack development.
• Experience independently delivering substantial technical projects or customer-facing product features.
• Strong understanding of software design, testing, debugging, performance, scalability, and maintainability.
• Ability to diagnose complex application and production problems using logs, metrics, tracing, and systematic troubleshooting.
• Strong technical judgment and an ability to make appropriate tradeoffs between delivery speed, maintainability, performance, and reliability.
• Experience collaborating effectively with product managers, designers, engineers, and other technical partners.
• Strong written and verbal communication skills.
• Experience mentoring or providing technical guidance to other engineers.

Responsibilities

• Design, build, test, deploy, and operate high-quality software supporting Fanatics Live.
• Independently own significant features, services, and technical projects from design through production.
• Build scalable frontend, backend, API, or full-stack solutions supporting live commerce, discovery, community, and transactional experiences.
• Translate product requirements and customer needs into thoughtful technical designs and implementation plans.
• Solve complex engineering problems involving architecture, performance, reliability, scalability, data, and integrations.
• Partner closely with Product and Design to shape solutions and deliver compelling customer experiences.
• Build software capable of performing reliably during high-traffic events, launches, and rapidly changing demand.
• Contribute actively to architecture discussions, technical designs, code reviews, and engineering planning.
• Improve application performance, observability, automated testing, deployment safety, and production reliability.
• Diagnose complex production issues and drive them through root-cause analysis and resolution.
• Identify technical debt and opportunities to simplify, modernize, or improve existing systems.
• Contribute to shared engineering standards, reusable components, APIs, libraries, and development practices.
• Mentor other engineers through technical collaboration, design discussions, and code reviews.

Skills

5+ years experience

Web applications

APIs

Distributed systems

Cloud services

Full-stack development

Job description

Fanatics Collectibles is seeking a Senior Software Engineer to design, build, and operate Fanatics Live web and software experiences. You will own significant features, partner with Product/Design, and work on fast, reliable systems for high-traffic events.

You’ll contribute to architecture, performance, observability, and production reliability while mentoring peers and delivering customer-centric solutions.