Principal Frontend Engineer

About this role

<h3><strong><span data-contrast="auto"><span data-ccp-parastyle="heading 1">About Arena Club</span></span></strong><span data-ccp-props="{"134245418":true,"134245529":true,"335559738":400,"335559739":120}"> </span></h3> <p><span data-contrast="auto">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.</span></p> <div class="p-rich_text_section"> </div> <h3 class="p-rich_text_section"><strong data-stringify-type="bold">About The Role</strong></h3> <p class="p-rich_text_section">We are seeking a Principal Frontend Engineer who blends architectural vision with hands-on execution. You’ll set the direction for how we build, scale, and evolve the frontend across our products — from the design system and performance strategy to how teams ship reliable, elegant interfaces.You’re equally comfortable mapping out the big picture as you are diving into a complex React component or debugging TypeScript code. You’ll serve as a technical leader and mentor, helping other engineers level up while owning your own initiatives from concept to production.</p> <div class="p-rich_text_section"> </div> <div class="p-rich_text_section"> </div> <h3 class="p-rich_text_section"><strong data-stringify-type="bold">What You Will Do</strong></h3> <ul class="p-rich_text_list p-rich_text_list__bullet p-rich_text_list--nested" data-stringify-type="unordered-list" data-list-tree="true" data-indent="0" data-border="0"> <li data-stringify-indent="0" data-stringify-border="0">Drive the architecture, design, and implementation of Arena’s web applications using React and TypeScript</li> <li data-stringify-indent="0" data-stringify-border="0">Set technical direction for frontend systems and frameworks that scale across multiple products and teams</li> <li data-stringify-indent="0" data-stringify-border="0">Collaborate closely with Product, Design, and Backend Engineering to define elegant, performant user experiences</li> <li data-stringify-indent="0" data-stringify-border="0">Lead complex initiatives from concept to launch — balancing long-term architectural vision with short-term delivery needs</li> <li data-stringify-indent="0" data-stringify-border="0">Build and maintain robust design systems, shared components, and standards that ensure consistency and speed</li> <li data-stringify-indent="0" data-stringify-border="0">Raise the engineering bar by mentoring teammates, conducting thoughtful code reviews, and establishing best practices</li> <li data-stringify-indent="0" data-stringify-border="0">Champion performance, accessibility, and reliability as core pillars of our web platform</li> <li data-stringify-indent="0" data-stringify-border="0">Identify and resolve architectural bottlenecks, ensuring high-quality, maintainable code at scale</li> </ul> <div class="p-rich_text_section"> </div> <h3 class="p-rich_text_section"><strong data-stringify-type="bold">Qualifications</strong></h3> <ul class="p-rich_text_list p-rich_text_list__bullet p-rich_text_list--nested" data-stringify-type="unordered-list" data-list-tree="true" data-indent="0" data-border="0"> <li data-stringify-indent="0" data-stringify-border="0">Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience)</li> <li data-stringify-indent="0" data-stringify-border="0">8+ years of experience in frontend web development, with deep expertise in React and TypeScript</li> <li data-stringify-indent="0" data-stringify-border="0">3+ years of experience leading or architecting web development projects or teams</li> <li data-stringify-indent="0" data-stringify-border="0">Strong understanding of modern web application architecture, state management (Redux, MobX, or similar), and build tools (Webpack, Babel, Vite, etc.)</li> <li data-stringify-indent="0" data-stringify-border="0">Proven track record of designing, implementing, and deploying production-grade web applications end-to-end</li> <li data-stringify-indent="0" data-stringify-border="0">Experience with automated testing, continuous integration, and modern DevOps workflows</li> <li data-stringify-indent="0" data-stringify-border="0">Hands-on experience using AI tools (Claude or Cursor preferred; other agentic tools welcome) to ship code, build agents, and automate workflows</li> <li data-stringify-indent="0" data-stringify-border="0">Skilled in balancing speed and quality — making…