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Staff Backend Engineer

US - Remote

About Arena Club 

If you’re fascinated by sports cards and memorabilia, your search ends here. Arena Club is pioneering the collectibles domain by introducing the first-ever digital card show. Spearheaded by 5x World Series Champion Derek Jeter and serial entrepreneur Brian Lee, Arena Club has developed a fully digital marketplace. This innovative platform is built on trust, transparency, and fun, featuring grading & authentication, vaulting, and digital pack openings for collectors to build and showcase their collections in a personalized online showroom from anywhere in the world. 

Role Overview

Join our fast-growing startup as as a Staff Backend Engineer and help build the backbone of our platform. We are a dynamic, high-growth company where your work will have a direct impact on product success and scalability. 

Key Responsibilities

  • Design, build, and maintain scalable backend applications and APIs using Node.js, TypeScript, and Postgres
  • Leverage AI-powered coding tools (e.g., GitHub Copilot, Tabnine) to improve development speed, code quality, and system reliability
  • Architect and optimize systems for high scalability and performance as the business rapidly expands
  • Implement third-party integrations and external APIs to enhance the platform’s capabilities
  • Develop and maintain internal tools that support fulfillment operations, internal workflows, and machine learning initiatives
  • Set backend engineering standards and guide architectural decisions to ensure long-term scalability, performance, and reliability
  • Provide technical leadership and mentorship to other engineers, shaping the culture and velocity of a growing team
  • Collaborate cross-functionally with product, data, and frontend teams to ship high-impact features quickly
  • Ensure backend systems are secure, well-documented, and thoroughly tested

Qualifications

  • 8+ years of experience as a professional backend engineer
  • Strong proficiency in Node.js, TypeScript, and Postgres
  • Proven experience building and scaling eCommerce or online marketplace platforms
  • Passion for using the latest AI coding tools and AI-driven best practices to enhance development workflows
  • Deep understanding of cloud platforms (AWS or GCP) and containerization/infrastructure-as-code tools (Docker, Terraform)
  • Experience setting engineering best practices, making architectural decisions, and influencing technical direction across teams
  • Ability to move fast and iterate quickly in a startup environment while maintaining high code quality
  • Excellent problem-solving skills and the ability to communicate technical trade- offs effectively

Tech Stack

  • Languages & Frameworks: TypeScript, Node.js, Python
  • Database: Postgres
  • Cloud & Infrastructure: AWS (S3, SQS, etc.) and/or GCP, Docker, Terraform
  • AI Development Tools: AI-powered coding assistants (e.g., GitHub Copilot, Tabnine), LLM-based development enhancements

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